From 7f91fe3a71aa43700eac2650e3b01d50cbbb6f48 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Tue, 2 May 2023 19:06:17 +0200 Subject: clk: renesas: r8a779a0: Add PWM clock Tested-by: Kieran Bingham Signed-off-by: Wolfram Sang Reviewed-by: Geert Uytterhoeven Reviewed-by: Kieran Bingham Link: https://lore.kernel.org/r/20230502170618.55967-2-wsa+renesas@sang-engineering.com Signed-off-by: Geert Uytterhoeven --- drivers/clk/renesas/r8a779a0-cpg-mssr.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/renesas/r8a779a0-cpg-mssr.c b/drivers/clk/renesas/r8a779a0-cpg-mssr.c index fcc8279647a6..4c2872f45387 100644 --- a/drivers/clk/renesas/r8a779a0-cpg-mssr.c +++ b/drivers/clk/renesas/r8a779a0-cpg-mssr.c @@ -170,6 +170,7 @@ static const struct mssr_mod_clk r8a779a0_mod_clks[] __initconst = { DEF_MOD("msi3", 621, R8A779A0_CLK_MSO), DEF_MOD("msi4", 622, R8A779A0_CLK_MSO), DEF_MOD("msi5", 623, R8A779A0_CLK_MSO), + DEF_MOD("pwm0", 628, R8A779A0_CLK_S1D8), DEF_MOD("rpc-if", 629, R8A779A0_CLK_RPCD2), DEF_MOD("scif0", 702, R8A779A0_CLK_S1D8), DEF_MOD("scif1", 703, R8A779A0_CLK_S1D8), -- cgit v1.2.3-58-ga151 From 48b359732e166d0f5d53649e21eac8d9343b8e13 Mon Sep 17 00:00:00 2001 From: Artur Weber Date: Mon, 1 May 2023 21:55:17 +0200 Subject: clk: samsung: Add Exynos4212 compatible to CLKOUT driver Support for the Exynos4212 SoC was originally dropped as there were no boards using it. We will be adding a device that uses it, so add it back. This reverts commit d5cd103b06f9d766295d18798de484528eb120ea. Signed-off-by: Artur Weber Link: https://lore.kernel.org/r/20230501195525.6268-6-aweber.kernel@gmail.com Signed-off-by: Krzysztof Kozlowski --- drivers/clk/samsung/clk-exynos-clkout.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/clk') diff --git a/drivers/clk/samsung/clk-exynos-clkout.c b/drivers/clk/samsung/clk-exynos-clkout.c index 0cff1c94c35e..72b6cf83aff4 100644 --- a/drivers/clk/samsung/clk-exynos-clkout.c +++ b/drivers/clk/samsung/clk-exynos-clkout.c @@ -55,6 +55,9 @@ static const struct of_device_id exynos_clkout_ids[] = { }, { .compatible = "samsung,exynos4210-pmu", .data = &exynos_clkout_exynos4, + }, { + .compatible = "samsung,exynos4212-pmu", + .data = &exynos_clkout_exynos4, }, { .compatible = "samsung,exynos4412-pmu", .data = &exynos_clkout_exynos4, -- cgit v1.2.3-58-ga151 From 40b4ffe5e921a8db911a7e5ffe3ad8da86ac0dfd Mon Sep 17 00:00:00 2001 From: Artur Weber Date: Mon, 1 May 2023 21:55:18 +0200 Subject: clk: samsung: Re-add support for Exynos4212 CPU clock Support for the Exynos4212 SoC was originally dropped as there were no boards using it. We will be adding a device that uses it, so add it back. This reverts commit c9194fb623b0158029a268376df09fe28a2a2b05. Signed-off-by: Artur Weber Link: https://lore.kernel.org/r/20230501195525.6268-7-aweber.kernel@gmail.com Signed-off-by: Krzysztof Kozlowski --- drivers/clk/samsung/clk-exynos4.c | 44 ++++++++++++++++++++++++++++++++++----- 1 file changed, 39 insertions(+), 5 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c index d7dbb3858347..43207257a9cc 100644 --- a/drivers/clk/samsung/clk-exynos4.c +++ b/drivers/clk/samsung/clk-exynos4.c @@ -138,7 +138,8 @@ /* the exynos4 soc type */ enum exynos4_soc { EXYNOS4210, - EXYNOS4X12, + EXYNOS4212, + EXYNOS4412, }; /* list of PLLs to be registered */ @@ -1205,6 +1206,24 @@ static const struct exynos_cpuclk_cfg_data e4210_armclk_d[] __initconst = { { 0 }, }; +static const struct exynos_cpuclk_cfg_data e4212_armclk_d[] __initconst = { + { 1500000, E4210_CPU_DIV0(2, 1, 6, 0, 7, 3), E4210_CPU_DIV1(2, 6), }, + { 1400000, E4210_CPU_DIV0(2, 1, 6, 0, 7, 3), E4210_CPU_DIV1(2, 6), }, + { 1300000, E4210_CPU_DIV0(2, 1, 5, 0, 7, 3), E4210_CPU_DIV1(2, 5), }, + { 1200000, E4210_CPU_DIV0(2, 1, 5, 0, 7, 3), E4210_CPU_DIV1(2, 5), }, + { 1100000, E4210_CPU_DIV0(2, 1, 4, 0, 6, 3), E4210_CPU_DIV1(2, 4), }, + { 1000000, E4210_CPU_DIV0(1, 1, 4, 0, 5, 2), E4210_CPU_DIV1(2, 4), }, + { 900000, E4210_CPU_DIV0(1, 1, 3, 0, 5, 2), E4210_CPU_DIV1(2, 3), }, + { 800000, E4210_CPU_DIV0(1, 1, 3, 0, 5, 2), E4210_CPU_DIV1(2, 3), }, + { 700000, E4210_CPU_DIV0(1, 1, 3, 0, 4, 2), E4210_CPU_DIV1(2, 3), }, + { 600000, E4210_CPU_DIV0(1, 1, 3, 0, 4, 2), E4210_CPU_DIV1(2, 3), }, + { 500000, E4210_CPU_DIV0(1, 1, 3, 0, 4, 2), E4210_CPU_DIV1(2, 3), }, + { 400000, E4210_CPU_DIV0(1, 1, 3, 0, 4, 2), E4210_CPU_DIV1(2, 3), }, + { 300000, E4210_CPU_DIV0(1, 1, 2, 0, 4, 2), E4210_CPU_DIV1(2, 3), }, + { 200000, E4210_CPU_DIV0(1, 1, 1, 0, 3, 1), E4210_CPU_DIV1(2, 3), }, + { 0 }, +}; + #define E4412_CPU_DIV1(cores, hpm, copy) \ (((cores) << 8) | ((hpm) << 4) | ((copy) << 0)) @@ -1233,6 +1252,11 @@ static const struct samsung_cpu_clock exynos4210_cpu_clks[] __initconst = { CLK_CPU_NEEDS_DEBUG_ALT_DIV | CLK_CPU_HAS_DIV1, 0x14200, e4210_armclk_d), }; +static const struct samsung_cpu_clock exynos4212_cpu_clks[] __initconst = { + CPU_CLK(CLK_ARM_CLK, "armclk", CLK_MOUT_APLL, CLK_MOUT_MPLL_USER_C, + CLK_CPU_NEEDS_DEBUG_ALT_DIV | CLK_CPU_HAS_DIV1, 0x14200, e4212_armclk_d), +}; + static const struct samsung_cpu_clock exynos4412_cpu_clks[] __initconst = { CPU_CLK(CLK_ARM_CLK, "armclk", CLK_MOUT_APLL, CLK_MOUT_MPLL_USER_C, CLK_CPU_NEEDS_DEBUG_ALT_DIV | CLK_CPU_HAS_DIV1, 0x14200, e4412_armclk_d), @@ -1326,11 +1350,15 @@ static void __init exynos4_clk_init(struct device_node *np, samsung_clk_register_fixed_factor(ctx, exynos4x12_fixed_factor_clks, ARRAY_SIZE(exynos4x12_fixed_factor_clks)); - samsung_clk_register_cpu(ctx, exynos4412_cpu_clks, - ARRAY_SIZE(exynos4412_cpu_clks)); + if (soc == EXYNOS4412) + samsung_clk_register_cpu(ctx, exynos4412_cpu_clks, + ARRAY_SIZE(exynos4412_cpu_clks)); + else + samsung_clk_register_cpu(ctx, exynos4212_cpu_clks, + ARRAY_SIZE(exynos4212_cpu_clks)); } - if (soc == EXYNOS4X12) + if (soc == EXYNOS4212 || soc == EXYNOS4412) exynos4x12_core_down_clock(); samsung_clk_extended_sleep_init(reg_base, @@ -1363,8 +1391,14 @@ static void __init exynos4210_clk_init(struct device_node *np) } CLK_OF_DECLARE(exynos4210_clk, "samsung,exynos4210-clock", exynos4210_clk_init); +static void __init exynos4212_clk_init(struct device_node *np) +{ + exynos4_clk_init(np, EXYNOS4212); +} +CLK_OF_DECLARE(exynos4212_clk, "samsung,exynos4212-clock", exynos4212_clk_init); + static void __init exynos4412_clk_init(struct device_node *np) { - exynos4_clk_init(np, EXYNOS4X12); + exynos4_clk_init(np, EXYNOS4412); } CLK_OF_DECLARE(exynos4412_clk, "samsung,exynos4412-clock", exynos4412_clk_init); -- cgit v1.2.3-58-ga151 From ca1170b69968233b34d26432245eddf7d265186b Mon Sep 17 00:00:00 2001 From: Roman Beranek Date: Fri, 5 May 2023 07:21:07 +0200 Subject: clk: sunxi-ng: a64: force select PLL_MIPI in TCON0 mux TCON0's source clock can be fed from either PLL_MIPI, or PLL_VIDEO0(2X), however MIPI DSI output only seems to work when PLL_MIPI is selected and thus the choice must be hardcoded in. Currently, this driver can't propagate rate change from N-K-M clocks (such as PLL_MIPI) upwards. This prevents PLL_VIDEO0 from participating in setting of the TCON0 data clock rate, limiting the precision with which a target pixel clock can be matched. For outputs with fixed TCON0 divider, that is DSI and LVDS, the dotclock can deviate up to 8% off target. Signed-off-by: Roman Beranek Reviewed-by: Jernej Skrabec Acked-by: Maxime Ripard Link: https://lore.kernel.org/r/20230505052110.67514-2-me@crly.cz Signed-off-by: Jernej Skrabec --- drivers/clk/sunxi-ng/ccu-sun50i-a64.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'drivers/clk') diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-a64.c b/drivers/clk/sunxi-ng/ccu-sun50i-a64.c index 41519185600a..eb36f8f77d55 100644 --- a/drivers/clk/sunxi-ng/ccu-sun50i-a64.c +++ b/drivers/clk/sunxi-ng/ccu-sun50i-a64.c @@ -528,11 +528,18 @@ static SUNXI_CCU_M_WITH_MUX_GATE(de_clk, "de", de_parents, 0x104, 0, 4, 24, 3, BIT(31), CLK_SET_RATE_PARENT); +/* + * DSI output seems to work only when PLL_MIPI selected. Set it and prevent + * the mux from reparenting. + */ +#define SUN50I_A64_TCON0_CLK_REG 0x118 + static const char * const tcon0_parents[] = { "pll-mipi", "pll-video0-2x" }; static const u8 tcon0_table[] = { 0, 2, }; static SUNXI_CCU_MUX_TABLE_WITH_GATE(tcon0_clk, "tcon0", tcon0_parents, tcon0_table, 0x118, 24, 3, BIT(31), - CLK_SET_RATE_PARENT); + CLK_SET_RATE_PARENT | + CLK_SET_RATE_NO_REPARENT); static const char * const tcon1_parents[] = { "pll-video0", "pll-video1" }; static const u8 tcon1_table[] = { 0, 2, }; @@ -953,6 +960,11 @@ static int sun50i_a64_ccu_probe(struct platform_device *pdev) writel(0x515, reg + SUN50I_A64_PLL_MIPI_REG); + /* Set PLL MIPI as parent for TCON0 */ + val = readl(reg + SUN50I_A64_TCON0_CLK_REG); + val &= ~GENMASK(26, 24); + writel(val | (0 << 24), reg + SUN50I_A64_TCON0_CLK_REG); + ret = devm_sunxi_ccu_probe(&pdev->dev, reg, &sun50i_a64_ccu_desc); if (ret) return ret; -- cgit v1.2.3-58-ga151 From d1c20885d3b01e6a62e920af4b227abd294d22f3 Mon Sep 17 00:00:00 2001 From: Biju Das Date: Thu, 18 May 2023 16:23:34 +0100 Subject: clk: renesas: rzg2l: Fix CPG_SIPLL5_CLK1 register write As per the RZ/G2L HW(Rev.1.30 May2023) manual, there are no "write enable" bits in the CPG_SIPLL5_CLK1 register. So fix the CPG_SIPLL5_CLK register write by removing the "write enable" bits. Fixes: 1561380ee72f ("clk: renesas: rzg2l: Add FOUTPOSTDIV clk support") Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20230518152334.514922-1-biju.das.jz@bp.renesas.com [geert: Remove CPG_SIPLL5_CLK1_*_WEN bit definitions] Signed-off-by: Geert Uytterhoeven --- drivers/clk/renesas/rzg2l-cpg.c | 6 ++---- drivers/clk/renesas/rzg2l-cpg.h | 3 --- 2 files changed, 2 insertions(+), 7 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/renesas/rzg2l-cpg.c b/drivers/clk/renesas/rzg2l-cpg.c index 93b02cdc98c2..ca8b921c7762 100644 --- a/drivers/clk/renesas/rzg2l-cpg.c +++ b/drivers/clk/renesas/rzg2l-cpg.c @@ -603,10 +603,8 @@ static int rzg2l_cpg_sipll5_set_rate(struct clk_hw *hw, } /* Output clock setting 1 */ - writel(CPG_SIPLL5_CLK1_POSTDIV1_WEN | CPG_SIPLL5_CLK1_POSTDIV2_WEN | - CPG_SIPLL5_CLK1_REFDIV_WEN | (params.pl5_postdiv1 << 0) | - (params.pl5_postdiv2 << 4) | (params.pl5_refdiv << 8), - priv->base + CPG_SIPLL5_CLK1); + writel((params.pl5_postdiv1 << 0) | (params.pl5_postdiv2 << 4) | + (params.pl5_refdiv << 8), priv->base + CPG_SIPLL5_CLK1); /* Output clock setting, SSCG modulation value setting 3 */ writel((params.pl5_fracin << 8), priv->base + CPG_SIPLL5_CLK3); diff --git a/drivers/clk/renesas/rzg2l-cpg.h b/drivers/clk/renesas/rzg2l-cpg.h index eee780276a9e..6cee9e56acc7 100644 --- a/drivers/clk/renesas/rzg2l-cpg.h +++ b/drivers/clk/renesas/rzg2l-cpg.h @@ -32,9 +32,6 @@ #define CPG_SIPLL5_STBY_RESETB_WEN BIT(16) #define CPG_SIPLL5_STBY_SSCG_EN_WEN BIT(18) #define CPG_SIPLL5_STBY_DOWNSPREAD_WEN BIT(20) -#define CPG_SIPLL5_CLK1_POSTDIV1_WEN BIT(16) -#define CPG_SIPLL5_CLK1_POSTDIV2_WEN BIT(20) -#define CPG_SIPLL5_CLK1_REFDIV_WEN BIT(24) #define CPG_SIPLL5_CLK4_RESV_LSB (0xFF) #define CPG_SIPLL5_MON_PLL5_LOCK BIT(4) -- cgit v1.2.3-58-ga151 From 02f1e17c4106a24fabb27e1419cbcb144b4faa1b Mon Sep 17 00:00:00 2001 From: Dmitry Rokosov Date: Tue, 23 May 2023 16:53:46 +0300 Subject: clk: meson: make pll rst bit as optional Compared with the previous SoCs, self-adaption current module is newly added for A1, and there is no reset parameter except the fixed pll. Since we use clk-pll generic driver for A1 pll implementation, rst bit should be optional to support new behavior. Signed-off-by: Jian Hu Acked-by: Martin Blumenstingl Signed-off-by: Dmitry Rokosov Link: https://lore.kernel.org/r/20230523135351.19133-2-ddrokosov@sberdevices.ru Signed-off-by: Jerome Brunet --- drivers/clk/meson/clk-pll.c | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/meson/clk-pll.c b/drivers/clk/meson/clk-pll.c index afefeba6e458..314ca945a4d0 100644 --- a/drivers/clk/meson/clk-pll.c +++ b/drivers/clk/meson/clk-pll.c @@ -295,10 +295,14 @@ static int meson_clk_pll_init(struct clk_hw *hw) struct meson_clk_pll_data *pll = meson_clk_pll_data(clk); if (pll->init_count) { - meson_parm_write(clk->map, &pll->rst, 1); + if (MESON_PARM_APPLICABLE(&pll->rst)) + meson_parm_write(clk->map, &pll->rst, 1); + regmap_multi_reg_write(clk->map, pll->init_regs, pll->init_count); - meson_parm_write(clk->map, &pll->rst, 0); + + if (MESON_PARM_APPLICABLE(&pll->rst)) + meson_parm_write(clk->map, &pll->rst, 0); } return 0; @@ -309,8 +313,11 @@ static int meson_clk_pll_is_enabled(struct clk_hw *hw) struct clk_regmap *clk = to_clk_regmap(hw); struct meson_clk_pll_data *pll = meson_clk_pll_data(clk); - if (meson_parm_read(clk->map, &pll->rst) || - !meson_parm_read(clk->map, &pll->en) || + if (MESON_PARM_APPLICABLE(&pll->rst) && + meson_parm_read(clk->map, &pll->rst)) + return 0; + + if (!meson_parm_read(clk->map, &pll->en) || !meson_parm_read(clk->map, &pll->l)) return 0; @@ -341,13 +348,15 @@ static int meson_clk_pll_enable(struct clk_hw *hw) return 0; /* Make sure the pll is in reset */ - meson_parm_write(clk->map, &pll->rst, 1); + if (MESON_PARM_APPLICABLE(&pll->rst)) + meson_parm_write(clk->map, &pll->rst, 1); /* Enable the pll */ meson_parm_write(clk->map, &pll->en, 1); /* Take the pll out reset */ - meson_parm_write(clk->map, &pll->rst, 0); + if (MESON_PARM_APPLICABLE(&pll->rst)) + meson_parm_write(clk->map, &pll->rst, 0); if (meson_clk_pll_wait_lock(hw)) return -EIO; @@ -361,7 +370,8 @@ static void meson_clk_pll_disable(struct clk_hw *hw) struct meson_clk_pll_data *pll = meson_clk_pll_data(clk); /* Put the pll is in reset */ - meson_parm_write(clk->map, &pll->rst, 1); + if (MESON_PARM_APPLICABLE(&pll->rst)) + meson_parm_write(clk->map, &pll->rst, 1); /* Disable the pll */ meson_parm_write(clk->map, &pll->en, 0); -- cgit v1.2.3-58-ga151 From b6ec400aa153b27e056b2dfc5e830b724c053a04 Mon Sep 17 00:00:00 2001 From: Dmitry Rokosov Date: Tue, 23 May 2023 16:53:47 +0300 Subject: clk: meson: introduce new pll power-on sequence for A1 SoC family Modern meson PLL IPs are a little bit different from early known PLLs. The main difference is located in the init/enable/disable sequences; the rate logic is the same. In A1 PLL, the PLL enable sequence is different, so add new optional pll reg bits and use the new power-on sequence to enable the PLL: 1. enable the pll, delay for 10us 2. enable the pll self-adaption current module, delay for 40us 3. enable the lock detect module Signed-off-by: Jian Hu Acked-by: Martin Blumenstingl Signed-off-by: Dmitry Rokosov Link: https://lore.kernel.org/r/20230523135351.19133-3-ddrokosov@sberdevices.ru Signed-off-by: Jerome Brunet --- drivers/clk/meson/clk-pll.c | 23 +++++++++++++++++++++++ drivers/clk/meson/clk-pll.h | 2 ++ 2 files changed, 25 insertions(+) (limited to 'drivers/clk') diff --git a/drivers/clk/meson/clk-pll.c b/drivers/clk/meson/clk-pll.c index 314ca945a4d0..56ec2210f1ad 100644 --- a/drivers/clk/meson/clk-pll.c +++ b/drivers/clk/meson/clk-pll.c @@ -358,6 +358,25 @@ static int meson_clk_pll_enable(struct clk_hw *hw) if (MESON_PARM_APPLICABLE(&pll->rst)) meson_parm_write(clk->map, &pll->rst, 0); + /* + * Compared with the previous SoCs, self-adaption current module + * is newly added for A1, keep the new power-on sequence to enable the + * PLL. The sequence is: + * 1. enable the pll, delay for 10us + * 2. enable the pll self-adaption current module, delay for 40us + * 3. enable the lock detect module + */ + if (MESON_PARM_APPLICABLE(&pll->current_en)) { + usleep_range(10, 20); + meson_parm_write(clk->map, &pll->current_en, 1); + usleep_range(40, 50); + }; + + if (MESON_PARM_APPLICABLE(&pll->l_detect)) { + meson_parm_write(clk->map, &pll->l_detect, 1); + meson_parm_write(clk->map, &pll->l_detect, 0); + } + if (meson_clk_pll_wait_lock(hw)) return -EIO; @@ -375,6 +394,10 @@ static void meson_clk_pll_disable(struct clk_hw *hw) /* Disable the pll */ meson_parm_write(clk->map, &pll->en, 0); + + /* Disable PLL internal self-adaption current module */ + if (MESON_PARM_APPLICABLE(&pll->current_en)) + meson_parm_write(clk->map, &pll->current_en, 0); } static int meson_clk_pll_set_rate(struct clk_hw *hw, unsigned long rate, diff --git a/drivers/clk/meson/clk-pll.h b/drivers/clk/meson/clk-pll.h index 367efd0f6410..a2228c0fdce5 100644 --- a/drivers/clk/meson/clk-pll.h +++ b/drivers/clk/meson/clk-pll.h @@ -36,6 +36,8 @@ struct meson_clk_pll_data { struct parm frac; struct parm l; struct parm rst; + struct parm current_en; + struct parm l_detect; const struct reg_sequence *init_regs; unsigned int init_count; const struct pll_params_table *table; -- cgit v1.2.3-58-ga151 From 28f3be518081b2127f98105fa9735a19812a33ca Mon Sep 17 00:00:00 2001 From: Dmitry Rokosov Date: Tue, 23 May 2023 16:53:49 +0300 Subject: clk: meson: a1: add Amlogic A1 PLL clock controller driver Introduce PLL clock controller for Amlogic A1 SoC family. The clock unit is an APB slave module that is designed for generating all of the internal and system clocks. The SoC uses an external 24MHz crystal; there are 4 internal PLLs: SYS_PLL/HIFI_PLL/USB_PLL/(FIXPLL), these PLLs generate 27 clock sources. Signed-off-by: Jian Hu Signed-off-by: Dmitry Rokosov Reviewed-by: Martin Blumenstingl Link: https://lore.kernel.org/r/20230523135351.19133-5-ddrokosov@sberdevices.ru Signed-off-by: Jerome Brunet --- drivers/clk/meson/Kconfig | 10 ++ drivers/clk/meson/Makefile | 1 + drivers/clk/meson/a1-pll.c | 356 +++++++++++++++++++++++++++++++++++++++++++++ drivers/clk/meson/a1-pll.h | 47 ++++++ 4 files changed, 414 insertions(+) create mode 100644 drivers/clk/meson/a1-pll.c create mode 100644 drivers/clk/meson/a1-pll.h (limited to 'drivers/clk') diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig index fc002c155bc3..693c4cf60f27 100644 --- a/drivers/clk/meson/Kconfig +++ b/drivers/clk/meson/Kconfig @@ -99,6 +99,16 @@ config COMMON_CLK_AXG_AUDIO Support for the audio clock controller on AmLogic A113D devices, aka axg, Say Y if you want audio subsystem to work. +config COMMON_CLK_A1_PLL + tristate "Amlogic A1 SoC PLL controller support" + depends on ARM64 + select COMMON_CLK_MESON_REGMAP + select COMMON_CLK_MESON_PLL + help + Support for the PLL clock controller on Amlogic A113L based + device, A1 SoC Family. Say Y if you want A1 PLL clock controller + to work. + config COMMON_CLK_G12A tristate "G12 and SM1 SoC clock controllers support" depends on ARM64 diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile index 6eca2a406ee3..2f17f475a48f 100644 --- a/drivers/clk/meson/Makefile +++ b/drivers/clk/meson/Makefile @@ -16,6 +16,7 @@ obj-$(CONFIG_COMMON_CLK_MESON_VID_PLL_DIV) += vid-pll-div.o obj-$(CONFIG_COMMON_CLK_AXG) += axg.o axg-aoclk.o obj-$(CONFIG_COMMON_CLK_AXG_AUDIO) += axg-audio.o +obj-$(CONFIG_COMMON_CLK_A1_PLL) += a1-pll.o obj-$(CONFIG_COMMON_CLK_GXBB) += gxbb.o gxbb-aoclk.o obj-$(CONFIG_COMMON_CLK_G12A) += g12a.o g12a-aoclk.o obj-$(CONFIG_COMMON_CLK_MESON8B) += meson8b.o meson8-ddr.o diff --git a/drivers/clk/meson/a1-pll.c b/drivers/clk/meson/a1-pll.c new file mode 100644 index 000000000000..bd2f1d1ec6e4 --- /dev/null +++ b/drivers/clk/meson/a1-pll.c @@ -0,0 +1,356 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2019 Amlogic, Inc. All rights reserved. + * Author: Jian Hu + * + * Copyright (c) 2023, SberDevices. All Rights Reserved. + * Author: Dmitry Rokosov + */ + +#include +#include +#include +#include "a1-pll.h" +#include "clk-regmap.h" + +static struct clk_regmap fixed_pll_dco = { + .data = &(struct meson_clk_pll_data){ + .en = { + .reg_off = ANACTRL_FIXPLL_CTRL0, + .shift = 28, + .width = 1, + }, + .m = { + .reg_off = ANACTRL_FIXPLL_CTRL0, + .shift = 0, + .width = 8, + }, + .n = { + .reg_off = ANACTRL_FIXPLL_CTRL0, + .shift = 10, + .width = 5, + }, + .frac = { + .reg_off = ANACTRL_FIXPLL_CTRL1, + .shift = 0, + .width = 19, + }, + .l = { + .reg_off = ANACTRL_FIXPLL_STS, + .shift = 31, + .width = 1, + }, + .rst = { + .reg_off = ANACTRL_FIXPLL_CTRL0, + .shift = 29, + .width = 1, + }, + }, + .hw.init = &(struct clk_init_data){ + .name = "fixed_pll_dco", + .ops = &meson_clk_pll_ro_ops, + .parent_data = &(const struct clk_parent_data) { + .fw_name = "fixpll_in", + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap fixed_pll = { + .data = &(struct clk_regmap_gate_data){ + .offset = ANACTRL_FIXPLL_CTRL0, + .bit_idx = 20, + }, + .hw.init = &(struct clk_init_data) { + .name = "fixed_pll", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &fixed_pll_dco.hw + }, + .num_parents = 1, + }, +}; + +static const struct pll_mult_range hifi_pll_mult_range = { + .min = 32, + .max = 64, +}; + +static const struct reg_sequence hifi_init_regs[] = { + { .reg = ANACTRL_HIFIPLL_CTRL1, .def = 0x01800000 }, + { .reg = ANACTRL_HIFIPLL_CTRL2, .def = 0x00001100 }, + { .reg = ANACTRL_HIFIPLL_CTRL3, .def = 0x100a1100 }, + { .reg = ANACTRL_HIFIPLL_CTRL4, .def = 0x00302000 }, + { .reg = ANACTRL_HIFIPLL_CTRL0, .def = 0x01f18000 }, +}; + +static struct clk_regmap hifi_pll = { + .data = &(struct meson_clk_pll_data){ + .en = { + .reg_off = ANACTRL_HIFIPLL_CTRL0, + .shift = 28, + .width = 1, + }, + .m = { + .reg_off = ANACTRL_HIFIPLL_CTRL0, + .shift = 0, + .width = 8, + }, + .n = { + .reg_off = ANACTRL_HIFIPLL_CTRL0, + .shift = 10, + .width = 5, + }, + .frac = { + .reg_off = ANACTRL_HIFIPLL_CTRL1, + .shift = 0, + .width = 19, + }, + .l = { + .reg_off = ANACTRL_HIFIPLL_STS, + .shift = 31, + .width = 1, + }, + .current_en = { + .reg_off = ANACTRL_HIFIPLL_CTRL0, + .shift = 26, + .width = 1, + }, + .l_detect = { + .reg_off = ANACTRL_HIFIPLL_CTRL2, + .shift = 6, + .width = 1, + }, + .range = &hifi_pll_mult_range, + .init_regs = hifi_init_regs, + .init_count = ARRAY_SIZE(hifi_init_regs), + }, + .hw.init = &(struct clk_init_data){ + .name = "hifi_pll", + .ops = &meson_clk_pll_ops, + .parent_data = &(const struct clk_parent_data) { + .fw_name = "hifipll_in", + }, + .num_parents = 1, + }, +}; + +static struct clk_fixed_factor fclk_div2_div = { + .mult = 1, + .div = 2, + .hw.init = &(struct clk_init_data){ + .name = "fclk_div2_div", + .ops = &clk_fixed_factor_ops, + .parent_hws = (const struct clk_hw *[]) { + &fixed_pll.hw + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap fclk_div2 = { + .data = &(struct clk_regmap_gate_data){ + .offset = ANACTRL_FIXPLL_CTRL0, + .bit_idx = 21, + }, + .hw.init = &(struct clk_init_data){ + .name = "fclk_div2", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &fclk_div2_div.hw + }, + .num_parents = 1, + /* + * This clock is used by DDR clock in BL2 firmware + * and is required by the platform to operate correctly. + * Until the following condition are met, we need this clock to + * be marked as critical: + * a) Mark the clock used by a firmware resource, if possible + * b) CCF has a clock hand-off mechanism to make the sure the + * clock stays on until the proper driver comes along + */ + .flags = CLK_IS_CRITICAL, + }, +}; + +static struct clk_fixed_factor fclk_div3_div = { + .mult = 1, + .div = 3, + .hw.init = &(struct clk_init_data){ + .name = "fclk_div3_div", + .ops = &clk_fixed_factor_ops, + .parent_hws = (const struct clk_hw *[]) { + &fixed_pll.hw + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap fclk_div3 = { + .data = &(struct clk_regmap_gate_data){ + .offset = ANACTRL_FIXPLL_CTRL0, + .bit_idx = 22, + }, + .hw.init = &(struct clk_init_data){ + .name = "fclk_div3", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &fclk_div3_div.hw + }, + .num_parents = 1, + /* + * This clock is used by APB bus which is set in boot ROM code + * and is required by the platform to operate correctly. + */ + .flags = CLK_IS_CRITICAL, + }, +}; + +static struct clk_fixed_factor fclk_div5_div = { + .mult = 1, + .div = 5, + .hw.init = &(struct clk_init_data){ + .name = "fclk_div5_div", + .ops = &clk_fixed_factor_ops, + .parent_hws = (const struct clk_hw *[]) { + &fixed_pll.hw + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap fclk_div5 = { + .data = &(struct clk_regmap_gate_data){ + .offset = ANACTRL_FIXPLL_CTRL0, + .bit_idx = 23, + }, + .hw.init = &(struct clk_init_data){ + .name = "fclk_div5", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &fclk_div5_div.hw + }, + .num_parents = 1, + /* + * This clock is used by AXI bus which setted in Romcode + * and is required by the platform to operate correctly. + */ + .flags = CLK_IS_CRITICAL, + }, +}; + +static struct clk_fixed_factor fclk_div7_div = { + .mult = 1, + .div = 7, + .hw.init = &(struct clk_init_data){ + .name = "fclk_div7_div", + .ops = &clk_fixed_factor_ops, + .parent_hws = (const struct clk_hw *[]) { + &fixed_pll.hw + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap fclk_div7 = { + .data = &(struct clk_regmap_gate_data){ + .offset = ANACTRL_FIXPLL_CTRL0, + .bit_idx = 24, + }, + .hw.init = &(struct clk_init_data){ + .name = "fclk_div7", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &fclk_div7_div.hw + }, + .num_parents = 1, + }, +}; + +/* Array of all clocks registered by this provider */ +static struct clk_hw_onecell_data a1_pll_clks = { + .hws = { + [CLKID_FIXED_PLL_DCO] = &fixed_pll_dco.hw, + [CLKID_FIXED_PLL] = &fixed_pll.hw, + [CLKID_FCLK_DIV2_DIV] = &fclk_div2_div.hw, + [CLKID_FCLK_DIV3_DIV] = &fclk_div3_div.hw, + [CLKID_FCLK_DIV5_DIV] = &fclk_div5_div.hw, + [CLKID_FCLK_DIV7_DIV] = &fclk_div7_div.hw, + [CLKID_FCLK_DIV2] = &fclk_div2.hw, + [CLKID_FCLK_DIV3] = &fclk_div3.hw, + [CLKID_FCLK_DIV5] = &fclk_div5.hw, + [CLKID_FCLK_DIV7] = &fclk_div7.hw, + [CLKID_HIFI_PLL] = &hifi_pll.hw, + [NR_PLL_CLKS] = NULL, + }, + .num = NR_PLL_CLKS, +}; + +static struct clk_regmap *const a1_pll_regmaps[] = { + &fixed_pll_dco, + &fixed_pll, + &fclk_div2, + &fclk_div3, + &fclk_div5, + &fclk_div7, + &hifi_pll, +}; + +static struct regmap_config a1_pll_regmap_cfg = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, +}; + +static int meson_a1_pll_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + void __iomem *base; + struct regmap *map; + int clkid, i, err; + + base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) + return dev_err_probe(dev, PTR_ERR(base), + "can't ioremap resource\n"); + + map = devm_regmap_init_mmio(dev, base, &a1_pll_regmap_cfg); + if (IS_ERR(map)) + return dev_err_probe(dev, PTR_ERR(map), + "can't init regmap mmio region\n"); + + /* Populate regmap for the regmap backed clocks */ + for (i = 0; i < ARRAY_SIZE(a1_pll_regmaps); i++) + a1_pll_regmaps[i]->map = map; + + /* Register clocks */ + for (clkid = 0; clkid < a1_pll_clks.num; clkid++) { + err = devm_clk_hw_register(dev, a1_pll_clks.hws[clkid]); + if (err) + return dev_err_probe(dev, err, + "clock[%d] registration failed\n", + clkid); + } + + return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, + &a1_pll_clks); +} + +static const struct of_device_id a1_pll_clkc_match_table[] = { + { .compatible = "amlogic,a1-pll-clkc", }, + {} +}; +MODULE_DEVICE_TABLE(of, a1_pll_clkc_match_table); + +static struct platform_driver a1_pll_clkc_driver = { + .probe = meson_a1_pll_probe, + .driver = { + .name = "a1-pll-clkc", + .of_match_table = a1_pll_clkc_match_table, + }, +}; + +module_platform_driver(a1_pll_clkc_driver); +MODULE_AUTHOR("Jian Hu "); +MODULE_AUTHOR("Dmitry Rokosov "); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/a1-pll.h b/drivers/clk/meson/a1-pll.h new file mode 100644 index 000000000000..29726651b056 --- /dev/null +++ b/drivers/clk/meson/a1-pll.h @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Amlogic A1 PLL Clock Controller internals + * + * Copyright (c) 2019 Amlogic, Inc. All rights reserved. + * Author: Jian Hu + * + * Copyright (c) 2023, SberDevices. All Rights Reserved. + * Author: Dmitry Rokosov + */ + +#ifndef __A1_PLL_H +#define __A1_PLL_H + +#include "clk-pll.h" + +/* PLL register offset */ +#define ANACTRL_FIXPLL_CTRL0 0x0 +#define ANACTRL_FIXPLL_CTRL1 0x4 +#define ANACTRL_FIXPLL_STS 0x14 +#define ANACTRL_HIFIPLL_CTRL0 0xc0 +#define ANACTRL_HIFIPLL_CTRL1 0xc4 +#define ANACTRL_HIFIPLL_CTRL2 0xc8 +#define ANACTRL_HIFIPLL_CTRL3 0xcc +#define ANACTRL_HIFIPLL_CTRL4 0xd0 +#define ANACTRL_HIFIPLL_STS 0xd4 + +/* include the CLKIDs that have been made part of the DT binding */ +#include + +/* + * CLKID index values for internal clocks + * + * These indices are entirely contrived and do not map onto the hardware. + * It has now been decided to expose everything by default in the DT header: + * include/dt-bindings/clock/a1-pll-clkc.h. Only the clocks ids we don't want + * to expose, such as the internal muxes and dividers of composite clocks, + * will remain defined here. + */ +#define CLKID_FIXED_PLL_DCO 0 +#define CLKID_FCLK_DIV2_DIV 2 +#define CLKID_FCLK_DIV3_DIV 3 +#define CLKID_FCLK_DIV5_DIV 4 +#define CLKID_FCLK_DIV7_DIV 5 +#define NR_PLL_CLKS 11 + +#endif /* __A1_PLL_H */ -- cgit v1.2.3-58-ga151 From 84af914404dbc01f388c440cac72428784b8a161 Mon Sep 17 00:00:00 2001 From: Dmitry Rokosov Date: Tue, 23 May 2023 16:53:51 +0300 Subject: clk: meson: a1: add Amlogic A1 Peripherals clock controller driver Introduce Peripherals clock controller for Amlogic A1 SoC family. A1 SoC has four clock controllers on the board: PLL, Peripherals, CPU, and Audio. This patchset adds support for Amlogic A1 Peripherals clock driver and allows to generate clocks for all A1 SoC peripheral IPs. Signed-off-by: Jian Hu Signed-off-by: Dmitry Rokosov Reviewed-by: Martin Blumenstingl Link: https://lore.kernel.org/r/20230523135351.19133-7-ddrokosov@sberdevices.ru Signed-off-by: Jerome Brunet --- drivers/clk/meson/Kconfig | 10 + drivers/clk/meson/Makefile | 1 + drivers/clk/meson/a1-peripherals.c | 2243 ++++++++++++++++++++++++++++++++++++ drivers/clk/meson/a1-peripherals.h | 113 ++ 4 files changed, 2367 insertions(+) create mode 100644 drivers/clk/meson/a1-peripherals.c create mode 100644 drivers/clk/meson/a1-peripherals.h (limited to 'drivers/clk') diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig index 693c4cf60f27..8ce846fdbe43 100644 --- a/drivers/clk/meson/Kconfig +++ b/drivers/clk/meson/Kconfig @@ -109,6 +109,16 @@ config COMMON_CLK_A1_PLL device, A1 SoC Family. Say Y if you want A1 PLL clock controller to work. +config COMMON_CLK_A1_PERIPHERALS + tristate "Amlogic A1 SoC Peripherals clock controller support" + depends on ARM64 + select COMMON_CLK_MESON_DUALDIV + select COMMON_CLK_MESON_REGMAP + help + Support for the Peripherals clock controller on Amlogic A113L based + device, A1 SoC Family. Say Y if you want A1 Peripherals clock + controller to work. + config COMMON_CLK_G12A tristate "G12 and SM1 SoC clock controllers support" depends on ARM64 diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile index 2f17f475a48f..d5288662881d 100644 --- a/drivers/clk/meson/Makefile +++ b/drivers/clk/meson/Makefile @@ -17,6 +17,7 @@ obj-$(CONFIG_COMMON_CLK_MESON_VID_PLL_DIV) += vid-pll-div.o obj-$(CONFIG_COMMON_CLK_AXG) += axg.o axg-aoclk.o obj-$(CONFIG_COMMON_CLK_AXG_AUDIO) += axg-audio.o obj-$(CONFIG_COMMON_CLK_A1_PLL) += a1-pll.o +obj-$(CONFIG_COMMON_CLK_A1_PERIPHERALS) += a1-peripherals.o obj-$(CONFIG_COMMON_CLK_GXBB) += gxbb.o gxbb-aoclk.o obj-$(CONFIG_COMMON_CLK_G12A) += g12a.o g12a-aoclk.o obj-$(CONFIG_COMMON_CLK_MESON8B) += meson8b.o meson8-ddr.o diff --git a/drivers/clk/meson/a1-peripherals.c b/drivers/clk/meson/a1-peripherals.c new file mode 100644 index 000000000000..b320134fefeb --- /dev/null +++ b/drivers/clk/meson/a1-peripherals.c @@ -0,0 +1,2243 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2019 Amlogic, Inc. All rights reserved. + * Author: Jian Hu + * + * Copyright (c) 2023, SberDevices. All Rights Reserved. + * Author: Dmitry Rokosov + */ + +#include +#include +#include +#include "a1-peripherals.h" +#include "clk-dualdiv.h" +#include "clk-regmap.h" + +static struct clk_regmap xtal_in = { + .data = &(struct clk_regmap_gate_data){ + .offset = SYS_OSCIN_CTRL, + .bit_idx = 0, + }, + .hw.init = &(struct clk_init_data) { + .name = "xtal_in", + .ops = &clk_regmap_gate_ro_ops, + .parent_data = &(const struct clk_parent_data) { + .fw_name = "xtal", + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap fixpll_in = { + .data = &(struct clk_regmap_gate_data){ + .offset = SYS_OSCIN_CTRL, + .bit_idx = 1, + }, + .hw.init = &(struct clk_init_data) { + .name = "fixpll_in", + .ops = &clk_regmap_gate_ro_ops, + .parent_data = &(const struct clk_parent_data) { + .fw_name = "xtal", + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap usb_phy_in = { + .data = &(struct clk_regmap_gate_data){ + .offset = SYS_OSCIN_CTRL, + .bit_idx = 2, + }, + .hw.init = &(struct clk_init_data) { + .name = "usb_phy_in", + .ops = &clk_regmap_gate_ops, + .parent_data = &(const struct clk_parent_data) { + .fw_name = "xtal", + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap usb_ctrl_in = { + .data = &(struct clk_regmap_gate_data){ + .offset = SYS_OSCIN_CTRL, + .bit_idx = 3, + }, + .hw.init = &(struct clk_init_data) { + .name = "usb_ctrl_in", + .ops = &clk_regmap_gate_ops, + .parent_data = &(const struct clk_parent_data) { + .fw_name = "xtal", + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap hifipll_in = { + .data = &(struct clk_regmap_gate_data){ + .offset = SYS_OSCIN_CTRL, + .bit_idx = 4, + }, + .hw.init = &(struct clk_init_data) { + .name = "hifipll_in", + .ops = &clk_regmap_gate_ops, + .parent_data = &(const struct clk_parent_data) { + .fw_name = "xtal", + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap syspll_in = { + .data = &(struct clk_regmap_gate_data){ + .offset = SYS_OSCIN_CTRL, + .bit_idx = 5, + }, + .hw.init = &(struct clk_init_data) { + .name = "syspll_in", + .ops = &clk_regmap_gate_ops, + .parent_data = &(const struct clk_parent_data) { + .fw_name = "xtal", + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap dds_in = { + .data = &(struct clk_regmap_gate_data){ + .offset = SYS_OSCIN_CTRL, + .bit_idx = 6, + }, + .hw.init = &(struct clk_init_data) { + .name = "dds_in", + .ops = &clk_regmap_gate_ops, + .parent_data = &(const struct clk_parent_data) { + .fw_name = "xtal", + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap rtc_32k_in = { + .data = &(struct clk_regmap_gate_data){ + .offset = RTC_BY_OSCIN_CTRL0, + .bit_idx = 31, + }, + .hw.init = &(struct clk_init_data) { + .name = "rtc_32k_in", + .ops = &clk_regmap_gate_ops, + .parent_data = &(const struct clk_parent_data) { + .fw_name = "xtal", + }, + .num_parents = 1, + }, +}; + +static const struct meson_clk_dualdiv_param clk_32k_div_table[] = { + { + .dual = 1, + .n1 = 733, + .m1 = 8, + .n2 = 732, + .m2 = 11, + }, + {} +}; + +static struct clk_regmap rtc_32k_div = { + .data = &(struct meson_clk_dualdiv_data){ + .n1 = { + .reg_off = RTC_BY_OSCIN_CTRL0, + .shift = 0, + .width = 12, + }, + .n2 = { + .reg_off = RTC_BY_OSCIN_CTRL0, + .shift = 12, + .width = 12, + }, + .m1 = { + .reg_off = RTC_BY_OSCIN_CTRL1, + .shift = 0, + .width = 12, + }, + .m2 = { + .reg_off = RTC_BY_OSCIN_CTRL1, + .shift = 12, + .width = 12, + }, + .dual = { + .reg_off = RTC_BY_OSCIN_CTRL0, + .shift = 28, + .width = 1, + }, + .table = clk_32k_div_table, + }, + .hw.init = &(struct clk_init_data){ + .name = "rtc_32k_div", + .ops = &meson_clk_dualdiv_ops, + .parent_hws = (const struct clk_hw *[]) { + &rtc_32k_in.hw + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap rtc_32k_xtal = { + .data = &(struct clk_regmap_gate_data){ + .offset = RTC_BY_OSCIN_CTRL1, + .bit_idx = 24, + }, + .hw.init = &(struct clk_init_data) { + .name = "rtc_32k_xtal", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &rtc_32k_in.hw + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap rtc_32k_sel = { + .data = &(struct clk_regmap_mux_data) { + .offset = RTC_CTRL, + .mask = 0x3, + .shift = 0, + .flags = CLK_MUX_ROUND_CLOSEST, + }, + .hw.init = &(struct clk_init_data){ + .name = "rtc_32k_sel", + .ops = &clk_regmap_mux_ops, + .parent_hws = (const struct clk_hw *[]) { + &rtc_32k_xtal.hw, + &rtc_32k_div.hw, + }, + .num_parents = 2, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +struct clk_regmap rtc = { + .data = &(struct clk_regmap_gate_data){ + .offset = RTC_BY_OSCIN_CTRL0, + .bit_idx = 30, + }, + .hw.init = &(struct clk_init_data){ + .name = "rtc", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &rtc_32k_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static u32 mux_table_sys[] = { 0, 1, 2, 3, 7 }; +static const struct clk_parent_data sys_parents[] = { + { .fw_name = "xtal" }, + { .fw_name = "fclk_div2" }, + { .fw_name = "fclk_div3" }, + { .fw_name = "fclk_div5" }, + { .hw = &rtc.hw }, +}; + +static struct clk_regmap sys_b_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = SYS_CLK_CTRL0, + .mask = 0x7, + .shift = 26, + .table = mux_table_sys, + }, + .hw.init = &(struct clk_init_data){ + .name = "sys_b_sel", + .ops = &clk_regmap_mux_ro_ops, + .parent_data = sys_parents, + .num_parents = ARRAY_SIZE(sys_parents), + }, +}; + +static struct clk_regmap sys_b_div = { + .data = &(struct clk_regmap_div_data){ + .offset = SYS_CLK_CTRL0, + .shift = 16, + .width = 10, + }, + .hw.init = &(struct clk_init_data){ + .name = "sys_b_div", + .ops = &clk_regmap_divider_ro_ops, + .parent_hws = (const struct clk_hw *[]) { + &sys_b_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap sys_b = { + .data = &(struct clk_regmap_gate_data){ + .offset = SYS_CLK_CTRL0, + .bit_idx = 29, + }, + .hw.init = &(struct clk_init_data) { + .name = "sys_b", + .ops = &clk_regmap_gate_ro_ops, + .parent_hws = (const struct clk_hw *[]) { + &sys_b_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap sys_a_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = SYS_CLK_CTRL0, + .mask = 0x7, + .shift = 10, + .table = mux_table_sys, + }, + .hw.init = &(struct clk_init_data){ + .name = "sys_a_sel", + .ops = &clk_regmap_mux_ro_ops, + .parent_data = sys_parents, + .num_parents = ARRAY_SIZE(sys_parents), + }, +}; + +static struct clk_regmap sys_a_div = { + .data = &(struct clk_regmap_div_data){ + .offset = SYS_CLK_CTRL0, + .shift = 0, + .width = 10, + }, + .hw.init = &(struct clk_init_data){ + .name = "sys_a_div", + .ops = &clk_regmap_divider_ro_ops, + .parent_hws = (const struct clk_hw *[]) { + &sys_a_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap sys_a = { + .data = &(struct clk_regmap_gate_data){ + .offset = SYS_CLK_CTRL0, + .bit_idx = 13, + }, + .hw.init = &(struct clk_init_data) { + .name = "sys_a", + .ops = &clk_regmap_gate_ro_ops, + .parent_hws = (const struct clk_hw *[]) { + &sys_a_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap sys = { + .data = &(struct clk_regmap_mux_data){ + .offset = SYS_CLK_CTRL0, + .mask = 0x1, + .shift = 31, + }, + .hw.init = &(struct clk_init_data){ + .name = "sys", + .ops = &clk_regmap_mux_ro_ops, + .parent_hws = (const struct clk_hw *[]) { + &sys_a.hw, + &sys_b.hw, + }, + .num_parents = 2, + /* + * This clock is used by APB bus which is set in boot ROM code + * and is required by the platform to operate correctly. + * Until the following condition are met, we need this clock to + * be marked as critical: + * a) Mark the clock used by a firmware resource, if possible + * b) CCF has a clock hand-off mechanism to make the sure the + * clock stays on until the proper driver comes along + */ + .flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL, + }, +}; + +static u32 mux_table_dsp_ab[] = { 0, 1, 2, 3, 4, 7 }; +static const struct clk_parent_data dsp_ab_parent_data[] = { + { .fw_name = "xtal", }, + { .fw_name = "fclk_div2", }, + { .fw_name = "fclk_div3", }, + { .fw_name = "fclk_div5", }, + { .fw_name = "hifi_pll", }, + { .hw = &rtc.hw }, +}; + +static struct clk_regmap dspa_a_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = DSPA_CLK_CTRL0, + .mask = 0x7, + .shift = 10, + .table = mux_table_dsp_ab, + }, + .hw.init = &(struct clk_init_data){ + .name = "dspa_a_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = dsp_ab_parent_data, + .num_parents = ARRAY_SIZE(dsp_ab_parent_data), + }, +}; + +static struct clk_regmap dspa_a_div = { + .data = &(struct clk_regmap_div_data){ + .offset = DSPA_CLK_CTRL0, + .shift = 0, + .width = 10, + }, + .hw.init = &(struct clk_init_data){ + .name = "dspa_a_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &dspa_a_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dspa_a = { + .data = &(struct clk_regmap_gate_data){ + .offset = DSPA_CLK_CTRL0, + .bit_idx = 13, + }, + .hw.init = &(struct clk_init_data) { + .name = "dspa_a", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &dspa_a_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dspa_b_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = DSPA_CLK_CTRL0, + .mask = 0x7, + .shift = 26, + .table = mux_table_dsp_ab, + }, + .hw.init = &(struct clk_init_data){ + .name = "dspa_b_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = dsp_ab_parent_data, + .num_parents = ARRAY_SIZE(dsp_ab_parent_data), + }, +}; + +static struct clk_regmap dspa_b_div = { + .data = &(struct clk_regmap_div_data){ + .offset = DSPA_CLK_CTRL0, + .shift = 16, + .width = 10, + }, + .hw.init = &(struct clk_init_data){ + .name = "dspa_b_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &dspa_b_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dspa_b = { + .data = &(struct clk_regmap_gate_data){ + .offset = DSPA_CLK_CTRL0, + .bit_idx = 29, + }, + .hw.init = &(struct clk_init_data) { + .name = "dspa_b", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &dspa_b_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dspa_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = DSPA_CLK_CTRL0, + .mask = 0x1, + .shift = 15, + }, + .hw.init = &(struct clk_init_data){ + .name = "dspa_sel", + .ops = &clk_regmap_mux_ops, + .parent_hws = (const struct clk_hw *[]) { + &dspa_a.hw, + &dspa_b.hw, + }, + .num_parents = 2, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dspa_en = { + .data = &(struct clk_regmap_gate_data){ + .offset = DSPA_CLK_EN, + .bit_idx = 1, + }, + .hw.init = &(struct clk_init_data) { + .name = "dspa_en", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &dspa_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dspa_en_nic = { + .data = &(struct clk_regmap_gate_data){ + .offset = DSPA_CLK_EN, + .bit_idx = 0, + }, + .hw.init = &(struct clk_init_data) { + .name = "dspa_en_nic", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &dspa_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dspb_a_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = DSPB_CLK_CTRL0, + .mask = 0x7, + .shift = 10, + .table = mux_table_dsp_ab, + }, + .hw.init = &(struct clk_init_data){ + .name = "dspb_a_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = dsp_ab_parent_data, + .num_parents = ARRAY_SIZE(dsp_ab_parent_data), + }, +}; + +static struct clk_regmap dspb_a_div = { + .data = &(struct clk_regmap_div_data){ + .offset = DSPB_CLK_CTRL0, + .shift = 0, + .width = 10, + }, + .hw.init = &(struct clk_init_data){ + .name = "dspb_a_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &dspb_a_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dspb_a = { + .data = &(struct clk_regmap_gate_data){ + .offset = DSPB_CLK_CTRL0, + .bit_idx = 13, + }, + .hw.init = &(struct clk_init_data) { + .name = "dspb_a", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &dspb_a_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dspb_b_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = DSPB_CLK_CTRL0, + .mask = 0x7, + .shift = 26, + .table = mux_table_dsp_ab, + }, + .hw.init = &(struct clk_init_data){ + .name = "dspb_b_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = dsp_ab_parent_data, + .num_parents = ARRAY_SIZE(dsp_ab_parent_data), + }, +}; + +static struct clk_regmap dspb_b_div = { + .data = &(struct clk_regmap_div_data){ + .offset = DSPB_CLK_CTRL0, + .shift = 16, + .width = 10, + }, + .hw.init = &(struct clk_init_data){ + .name = "dspb_b_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &dspb_b_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dspb_b = { + .data = &(struct clk_regmap_gate_data){ + .offset = DSPB_CLK_CTRL0, + .bit_idx = 29, + }, + .hw.init = &(struct clk_init_data) { + .name = "dspb_b", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &dspb_b_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dspb_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = DSPB_CLK_CTRL0, + .mask = 0x1, + .shift = 15, + }, + .hw.init = &(struct clk_init_data){ + .name = "dspb_sel", + .ops = &clk_regmap_mux_ops, + .parent_hws = (const struct clk_hw *[]) { + &dspb_a.hw, + &dspb_b.hw, + }, + .num_parents = 2, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dspb_en = { + .data = &(struct clk_regmap_gate_data){ + .offset = DSPB_CLK_EN, + .bit_idx = 1, + }, + .hw.init = &(struct clk_init_data) { + .name = "dspb_en", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &dspb_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dspb_en_nic = { + .data = &(struct clk_regmap_gate_data){ + .offset = DSPB_CLK_EN, + .bit_idx = 0, + }, + .hw.init = &(struct clk_init_data) { + .name = "dspb_en_nic", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &dspb_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap clk_24m = { + .data = &(struct clk_regmap_gate_data){ + .offset = CLK12_24_CTRL, + .bit_idx = 11, + }, + .hw.init = &(struct clk_init_data) { + .name = "24m", + .ops = &clk_regmap_gate_ops, + .parent_data = &(const struct clk_parent_data) { + .fw_name = "xtal", + }, + .num_parents = 1, + }, +}; + +static struct clk_fixed_factor clk_24m_div2 = { + .mult = 1, + .div = 2, + .hw.init = &(struct clk_init_data){ + .name = "24m_div2", + .ops = &clk_fixed_factor_ops, + .parent_hws = (const struct clk_hw *[]) { + &clk_24m.hw + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap clk_12m = { + .data = &(struct clk_regmap_gate_data){ + .offset = CLK12_24_CTRL, + .bit_idx = 10, + }, + .hw.init = &(struct clk_init_data) { + .name = "12m", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &clk_24m_div2.hw + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap fclk_div2_divn_pre = { + .data = &(struct clk_regmap_div_data){ + .offset = CLK12_24_CTRL, + .shift = 0, + .width = 8, + }, + .hw.init = &(struct clk_init_data){ + .name = "fclk_div2_divn_pre", + .ops = &clk_regmap_divider_ops, + .parent_data = &(const struct clk_parent_data) { + .fw_name = "fclk_div2", + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap fclk_div2_divn = { + .data = &(struct clk_regmap_gate_data){ + .offset = CLK12_24_CTRL, + .bit_idx = 12, + }, + .hw.init = &(struct clk_init_data){ + .name = "fclk_div2_divn", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &fclk_div2_divn_pre.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +/* + * the index 2 is sys_pll_div16, it will be implemented in the CPU clock driver, + * the index 4 is the clock measurement source, it's not supported yet + */ +static u32 gen_table[] = { 0, 1, 3, 5, 6, 7, 8 }; +static const struct clk_parent_data gen_parent_data[] = { + { .fw_name = "xtal", }, + { .hw = &rtc.hw }, + { .fw_name = "hifi_pll", }, + { .fw_name = "fclk_div2", }, + { .fw_name = "fclk_div3", }, + { .fw_name = "fclk_div5", }, + { .fw_name = "fclk_div7", }, +}; + +static struct clk_regmap gen_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = GEN_CLK_CTRL, + .mask = 0xf, + .shift = 12, + .table = gen_table, + }, + .hw.init = &(struct clk_init_data){ + .name = "gen_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = gen_parent_data, + .num_parents = ARRAY_SIZE(gen_parent_data), + /* + * The GEN clock can be connected to an external pad, so it + * may be set up directly from the device tree. Additionally, + * the GEN clock can be inherited from a more accurate RTC + * clock, so in certain situations, it may be necessary + * to freeze its parent. + */ + .flags = CLK_SET_RATE_NO_REPARENT, + }, +}; + +static struct clk_regmap gen_div = { + .data = &(struct clk_regmap_div_data){ + .offset = GEN_CLK_CTRL, + .shift = 0, + .width = 11, + }, + .hw.init = &(struct clk_init_data){ + .name = "gen_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &gen_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap gen = { + .data = &(struct clk_regmap_gate_data){ + .offset = GEN_CLK_CTRL, + .bit_idx = 11, + }, + .hw.init = &(struct clk_init_data) { + .name = "gen", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &gen_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap saradc_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = SAR_ADC_CLK_CTRL, + .mask = 0x1, + .shift = 9, + }, + .hw.init = &(struct clk_init_data){ + .name = "saradc_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = (const struct clk_parent_data []) { + { .fw_name = "xtal", }, + { .hw = &sys.hw, }, + }, + .num_parents = 2, + }, +}; + +static struct clk_regmap saradc_div = { + .data = &(struct clk_regmap_div_data){ + .offset = SAR_ADC_CLK_CTRL, + .shift = 0, + .width = 8, + }, + .hw.init = &(struct clk_init_data){ + .name = "saradc_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &saradc_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap saradc = { + .data = &(struct clk_regmap_gate_data){ + .offset = SAR_ADC_CLK_CTRL, + .bit_idx = 8, + }, + .hw.init = &(struct clk_init_data) { + .name = "saradc", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &saradc_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static const struct clk_parent_data pwm_abcd_parents[] = { + { .fw_name = "xtal", }, + { .hw = &sys.hw }, + { .hw = &rtc.hw }, +}; + +static struct clk_regmap pwm_a_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = PWM_CLK_AB_CTRL, + .mask = 0x1, + .shift = 9, + }, + .hw.init = &(struct clk_init_data){ + .name = "pwm_a_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = pwm_abcd_parents, + .num_parents = ARRAY_SIZE(pwm_abcd_parents), + }, +}; + +static struct clk_regmap pwm_a_div = { + .data = &(struct clk_regmap_div_data){ + .offset = PWM_CLK_AB_CTRL, + .shift = 0, + .width = 8, + }, + .hw.init = &(struct clk_init_data){ + .name = "pwm_a_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &pwm_a_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap pwm_a = { + .data = &(struct clk_regmap_gate_data){ + .offset = PWM_CLK_AB_CTRL, + .bit_idx = 8, + }, + .hw.init = &(struct clk_init_data) { + .name = "pwm_a", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &pwm_a_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap pwm_b_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = PWM_CLK_AB_CTRL, + .mask = 0x1, + .shift = 25, + }, + .hw.init = &(struct clk_init_data){ + .name = "pwm_b_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = pwm_abcd_parents, + .num_parents = ARRAY_SIZE(pwm_abcd_parents), + }, +}; + +static struct clk_regmap pwm_b_div = { + .data = &(struct clk_regmap_div_data){ + .offset = PWM_CLK_AB_CTRL, + .shift = 16, + .width = 8, + }, + .hw.init = &(struct clk_init_data){ + .name = "pwm_b_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &pwm_b_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap pwm_b = { + .data = &(struct clk_regmap_gate_data){ + .offset = PWM_CLK_AB_CTRL, + .bit_idx = 24, + }, + .hw.init = &(struct clk_init_data) { + .name = "pwm_b", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &pwm_b_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap pwm_c_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = PWM_CLK_CD_CTRL, + .mask = 0x1, + .shift = 9, + }, + .hw.init = &(struct clk_init_data){ + .name = "pwm_c_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = pwm_abcd_parents, + .num_parents = ARRAY_SIZE(pwm_abcd_parents), + }, +}; + +static struct clk_regmap pwm_c_div = { + .data = &(struct clk_regmap_div_data){ + .offset = PWM_CLK_CD_CTRL, + .shift = 0, + .width = 8, + }, + .hw.init = &(struct clk_init_data){ + .name = "pwm_c_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &pwm_c_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap pwm_c = { + .data = &(struct clk_regmap_gate_data){ + .offset = PWM_CLK_CD_CTRL, + .bit_idx = 8, + }, + .hw.init = &(struct clk_init_data) { + .name = "pwm_c", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &pwm_c_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap pwm_d_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = PWM_CLK_CD_CTRL, + .mask = 0x1, + .shift = 25, + }, + .hw.init = &(struct clk_init_data){ + .name = "pwm_d_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = pwm_abcd_parents, + .num_parents = ARRAY_SIZE(pwm_abcd_parents), + }, +}; + +static struct clk_regmap pwm_d_div = { + .data = &(struct clk_regmap_div_data){ + .offset = PWM_CLK_CD_CTRL, + .shift = 16, + .width = 8, + }, + .hw.init = &(struct clk_init_data){ + .name = "pwm_d_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &pwm_d_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap pwm_d = { + .data = &(struct clk_regmap_gate_data){ + .offset = PWM_CLK_CD_CTRL, + .bit_idx = 24, + }, + .hw.init = &(struct clk_init_data) { + .name = "pwm_d", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &pwm_d_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static const struct clk_parent_data pwm_ef_parents[] = { + { .fw_name = "xtal", }, + { .hw = &sys.hw }, + { .fw_name = "fclk_div5", }, + { .hw = &rtc.hw }, +}; + +static struct clk_regmap pwm_e_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = PWM_CLK_EF_CTRL, + .mask = 0x3, + .shift = 9, + }, + .hw.init = &(struct clk_init_data){ + .name = "pwm_e_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = pwm_ef_parents, + .num_parents = ARRAY_SIZE(pwm_ef_parents), + }, +}; + +static struct clk_regmap pwm_e_div = { + .data = &(struct clk_regmap_div_data){ + .offset = PWM_CLK_EF_CTRL, + .shift = 0, + .width = 8, + }, + .hw.init = &(struct clk_init_data){ + .name = "pwm_e_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &pwm_e_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap pwm_e = { + .data = &(struct clk_regmap_gate_data){ + .offset = PWM_CLK_EF_CTRL, + .bit_idx = 8, + }, + .hw.init = &(struct clk_init_data) { + .name = "pwm_e", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &pwm_e_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap pwm_f_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = PWM_CLK_EF_CTRL, + .mask = 0x3, + .shift = 25, + }, + .hw.init = &(struct clk_init_data){ + .name = "pwm_f_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = pwm_ef_parents, + .num_parents = ARRAY_SIZE(pwm_ef_parents), + }, +}; + +static struct clk_regmap pwm_f_div = { + .data = &(struct clk_regmap_div_data){ + .offset = PWM_CLK_EF_CTRL, + .shift = 16, + .width = 8, + }, + .hw.init = &(struct clk_init_data){ + .name = "pwm_f_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &pwm_f_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap pwm_f = { + .data = &(struct clk_regmap_gate_data){ + .offset = PWM_CLK_EF_CTRL, + .bit_idx = 24, + }, + .hw.init = &(struct clk_init_data) { + .name = "pwm_f", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &pwm_f_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +/* + * spicc clk + * fdiv2 |\ |\ _____ + * ---------| |---DIV--| | | | spicc out + * ---------| | | |-----|GATE |--------- + * ..... |/ | / |_____| + * --------------------|/ + * 24M + */ +static const struct clk_parent_data spicc_spifc_parents[] = { + { .fw_name = "fclk_div2"}, + { .fw_name = "fclk_div3"}, + { .fw_name = "fclk_div5"}, + { .fw_name = "hifi_pll" }, +}; + +static struct clk_regmap spicc_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = SPICC_CLK_CTRL, + .mask = 0x3, + .shift = 9, + }, + .hw.init = &(struct clk_init_data){ + .name = "spicc_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = spicc_spifc_parents, + .num_parents = ARRAY_SIZE(spicc_spifc_parents), + }, +}; + +static struct clk_regmap spicc_div = { + .data = &(struct clk_regmap_div_data){ + .offset = SPICC_CLK_CTRL, + .shift = 0, + .width = 8, + }, + .hw.init = &(struct clk_init_data){ + .name = "spicc_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &spicc_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap spicc_sel2 = { + .data = &(struct clk_regmap_mux_data){ + .offset = SPICC_CLK_CTRL, + .mask = 0x1, + .shift = 15, + }, + .hw.init = &(struct clk_init_data){ + .name = "spicc_sel2", + .ops = &clk_regmap_mux_ops, + .parent_data = (const struct clk_parent_data []) { + { .hw = &spicc_div.hw }, + { .fw_name = "xtal", }, + }, + .num_parents = 2, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap spicc = { + .data = &(struct clk_regmap_gate_data){ + .offset = SPICC_CLK_CTRL, + .bit_idx = 8, + }, + .hw.init = &(struct clk_init_data) { + .name = "spicc", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &spicc_sel2.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap ts_div = { + .data = &(struct clk_regmap_div_data){ + .offset = TS_CLK_CTRL, + .shift = 0, + .width = 8, + }, + .hw.init = &(struct clk_init_data){ + .name = "ts_div", + .ops = &clk_regmap_divider_ops, + .parent_data = &(const struct clk_parent_data) { + .fw_name = "xtal", + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap ts = { + .data = &(struct clk_regmap_gate_data){ + .offset = TS_CLK_CTRL, + .bit_idx = 8, + }, + .hw.init = &(struct clk_init_data) { + .name = "ts", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &ts_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap spifc_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = SPIFC_CLK_CTRL, + .mask = 0x3, + .shift = 9, + }, + .hw.init = &(struct clk_init_data){ + .name = "spifc_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = spicc_spifc_parents, + .num_parents = ARRAY_SIZE(spicc_spifc_parents), + }, +}; + +static struct clk_regmap spifc_div = { + .data = &(struct clk_regmap_div_data){ + .offset = SPIFC_CLK_CTRL, + .shift = 0, + .width = 8, + }, + .hw.init = &(struct clk_init_data){ + .name = "spifc_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &spifc_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap spifc_sel2 = { + .data = &(struct clk_regmap_mux_data){ + .offset = SPIFC_CLK_CTRL, + .mask = 0x1, + .shift = 15, + }, + .hw.init = &(struct clk_init_data){ + .name = "spifc_sel2", + .ops = &clk_regmap_mux_ops, + .parent_data = (const struct clk_parent_data []) { + { .hw = &spifc_div.hw }, + { .fw_name = "xtal", }, + }, + .num_parents = 2, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap spifc = { + .data = &(struct clk_regmap_gate_data){ + .offset = SPIFC_CLK_CTRL, + .bit_idx = 8, + }, + .hw.init = &(struct clk_init_data) { + .name = "spifc", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &spifc_sel2.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static const struct clk_parent_data usb_bus_parents[] = { + { .fw_name = "xtal", }, + { .hw = &sys.hw }, + { .fw_name = "fclk_div3", }, + { .fw_name = "fclk_div5", }, +}; + +static struct clk_regmap usb_bus_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = USB_BUSCLK_CTRL, + .mask = 0x3, + .shift = 9, + }, + .hw.init = &(struct clk_init_data){ + .name = "usb_bus_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = usb_bus_parents, + .num_parents = ARRAY_SIZE(usb_bus_parents), + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap usb_bus_div = { + .data = &(struct clk_regmap_div_data){ + .offset = USB_BUSCLK_CTRL, + .shift = 0, + .width = 8, + }, + .hw.init = &(struct clk_init_data){ + .name = "usb_bus_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &usb_bus_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap usb_bus = { + .data = &(struct clk_regmap_gate_data){ + .offset = USB_BUSCLK_CTRL, + .bit_idx = 8, + }, + .hw.init = &(struct clk_init_data) { + .name = "usb_bus", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &usb_bus_div.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static const struct clk_parent_data sd_emmc_psram_dmc_parents[] = { + { .fw_name = "fclk_div2", }, + { .fw_name = "fclk_div3", }, + { .fw_name = "fclk_div5", }, + { .fw_name = "hifi_pll", }, +}; + +static struct clk_regmap sd_emmc_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = SD_EMMC_CLK_CTRL, + .mask = 0x3, + .shift = 9, + }, + .hw.init = &(struct clk_init_data){ + .name = "sd_emmc_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = sd_emmc_psram_dmc_parents, + .num_parents = ARRAY_SIZE(sd_emmc_psram_dmc_parents), + }, +}; + +static struct clk_regmap sd_emmc_div = { + .data = &(struct clk_regmap_div_data){ + .offset = SD_EMMC_CLK_CTRL, + .shift = 0, + .width = 8, + }, + .hw.init = &(struct clk_init_data){ + .name = "sd_emmc_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &sd_emmc_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap sd_emmc_sel2 = { + .data = &(struct clk_regmap_mux_data){ + .offset = SD_EMMC_CLK_CTRL, + .mask = 0x1, + .shift = 15, + }, + .hw.init = &(struct clk_init_data){ + .name = "sd_emmc_sel2", + .ops = &clk_regmap_mux_ops, + .parent_data = (const struct clk_parent_data []) { + { .hw = &sd_emmc_div.hw }, + { .fw_name = "xtal", }, + }, + .num_parents = 2, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap sd_emmc = { + .data = &(struct clk_regmap_gate_data){ + .offset = SD_EMMC_CLK_CTRL, + .bit_idx = 8, + }, + .hw.init = &(struct clk_init_data) { + .name = "sd_emmc", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &sd_emmc_sel2.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap psram_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = PSRAM_CLK_CTRL, + .mask = 0x3, + .shift = 9, + }, + .hw.init = &(struct clk_init_data){ + .name = "psram_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = sd_emmc_psram_dmc_parents, + .num_parents = ARRAY_SIZE(sd_emmc_psram_dmc_parents), + }, +}; + +static struct clk_regmap psram_div = { + .data = &(struct clk_regmap_div_data){ + .offset = PSRAM_CLK_CTRL, + .shift = 0, + .width = 8, + }, + .hw.init = &(struct clk_init_data){ + .name = "psram_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &psram_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap psram_sel2 = { + .data = &(struct clk_regmap_mux_data){ + .offset = PSRAM_CLK_CTRL, + .mask = 0x1, + .shift = 15, + }, + .hw.init = &(struct clk_init_data){ + .name = "psram_sel2", + .ops = &clk_regmap_mux_ops, + .parent_data = (const struct clk_parent_data []) { + { .hw = &psram_div.hw }, + { .fw_name = "xtal", }, + }, + .num_parents = 2, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap psram = { + .data = &(struct clk_regmap_gate_data){ + .offset = PSRAM_CLK_CTRL, + .bit_idx = 8, + }, + .hw.init = &(struct clk_init_data) { + .name = "psram", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &psram_sel2.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dmc_sel = { + .data = &(struct clk_regmap_mux_data){ + .offset = DMC_CLK_CTRL, + .mask = 0x3, + .shift = 9, + }, + .hw.init = &(struct clk_init_data){ + .name = "dmc_sel", + .ops = &clk_regmap_mux_ops, + .parent_data = sd_emmc_psram_dmc_parents, + .num_parents = ARRAY_SIZE(sd_emmc_psram_dmc_parents), + }, +}; + +static struct clk_regmap dmc_div = { + .data = &(struct clk_regmap_div_data){ + .offset = DMC_CLK_CTRL, + .shift = 0, + .width = 8, + }, + .hw.init = &(struct clk_init_data){ + .name = "dmc_div", + .ops = &clk_regmap_divider_ops, + .parent_hws = (const struct clk_hw *[]) { + &dmc_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dmc_sel2 = { + .data = &(struct clk_regmap_mux_data){ + .offset = DMC_CLK_CTRL, + .mask = 0x1, + .shift = 15, + }, + .hw.init = &(struct clk_init_data){ + .name = "dmc_sel2", + .ops = &clk_regmap_mux_ops, + .parent_data = (const struct clk_parent_data []) { + { .hw = &dmc_div.hw }, + { .fw_name = "xtal", }, + }, + .num_parents = 2, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap dmc = { + .data = &(struct clk_regmap_gate_data){ + .offset = DMC_CLK_CTRL, + .bit_idx = 8, + }, + .hw.init = &(struct clk_init_data) { + .name = "dmc", + .ops = &clk_regmap_gate_ro_ops, + .parent_hws = (const struct clk_hw *[]) { + &dmc_sel2.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap ceca_32k_in = { + .data = &(struct clk_regmap_gate_data){ + .offset = CECA_CLK_CTRL0, + .bit_idx = 31, + }, + .hw.init = &(struct clk_init_data) { + .name = "ceca_32k_in", + .ops = &clk_regmap_gate_ops, + .parent_data = &(const struct clk_parent_data) { + .fw_name = "xtal", + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap ceca_32k_div = { + .data = &(struct meson_clk_dualdiv_data){ + .n1 = { + .reg_off = CECA_CLK_CTRL0, + .shift = 0, + .width = 12, + }, + .n2 = { + .reg_off = CECA_CLK_CTRL0, + .shift = 12, + .width = 12, + }, + .m1 = { + .reg_off = CECA_CLK_CTRL1, + .shift = 0, + .width = 12, + }, + .m2 = { + .reg_off = CECA_CLK_CTRL1, + .shift = 12, + .width = 12, + }, + .dual = { + .reg_off = CECA_CLK_CTRL0, + .shift = 28, + .width = 1, + }, + .table = clk_32k_div_table, + }, + .hw.init = &(struct clk_init_data){ + .name = "ceca_32k_div", + .ops = &meson_clk_dualdiv_ops, + .parent_hws = (const struct clk_hw *[]) { + &ceca_32k_in.hw + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap ceca_32k_sel_pre = { + .data = &(struct clk_regmap_mux_data) { + .offset = CECA_CLK_CTRL1, + .mask = 0x1, + .shift = 24, + .flags = CLK_MUX_ROUND_CLOSEST, + }, + .hw.init = &(struct clk_init_data){ + .name = "ceca_32k_sel_pre", + .ops = &clk_regmap_mux_ops, + .parent_hws = (const struct clk_hw *[]) { + &ceca_32k_div.hw, + &ceca_32k_in.hw, + }, + .num_parents = 2, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap ceca_32k_sel = { + .data = &(struct clk_regmap_mux_data) { + .offset = CECA_CLK_CTRL1, + .mask = 0x1, + .shift = 31, + .flags = CLK_MUX_ROUND_CLOSEST, + }, + .hw.init = &(struct clk_init_data){ + .name = "ceca_32k_sel", + .ops = &clk_regmap_mux_ops, + .parent_hws = (const struct clk_hw *[]) { + &ceca_32k_sel_pre.hw, + &rtc.hw, + }, + .num_parents = 2, + }, +}; + +static struct clk_regmap ceca_32k_out = { + .data = &(struct clk_regmap_gate_data){ + .offset = CECA_CLK_CTRL0, + .bit_idx = 30, + }, + .hw.init = &(struct clk_init_data){ + .name = "ceca_32k_out", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &ceca_32k_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap cecb_32k_in = { + .data = &(struct clk_regmap_gate_data){ + .offset = CECB_CLK_CTRL0, + .bit_idx = 31, + }, + .hw.init = &(struct clk_init_data) { + .name = "cecb_32k_in", + .ops = &clk_regmap_gate_ops, + .parent_data = &(const struct clk_parent_data) { + .fw_name = "xtal", + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap cecb_32k_div = { + .data = &(struct meson_clk_dualdiv_data){ + .n1 = { + .reg_off = CECB_CLK_CTRL0, + .shift = 0, + .width = 12, + }, + .n2 = { + .reg_off = CECB_CLK_CTRL0, + .shift = 12, + .width = 12, + }, + .m1 = { + .reg_off = CECB_CLK_CTRL1, + .shift = 0, + .width = 12, + }, + .m2 = { + .reg_off = CECB_CLK_CTRL1, + .shift = 12, + .width = 12, + }, + .dual = { + .reg_off = CECB_CLK_CTRL0, + .shift = 28, + .width = 1, + }, + .table = clk_32k_div_table, + }, + .hw.init = &(struct clk_init_data){ + .name = "cecb_32k_div", + .ops = &meson_clk_dualdiv_ops, + .parent_hws = (const struct clk_hw *[]) { + &cecb_32k_in.hw + }, + .num_parents = 1, + }, +}; + +static struct clk_regmap cecb_32k_sel_pre = { + .data = &(struct clk_regmap_mux_data) { + .offset = CECB_CLK_CTRL1, + .mask = 0x1, + .shift = 24, + .flags = CLK_MUX_ROUND_CLOSEST, + }, + .hw.init = &(struct clk_init_data){ + .name = "cecb_32k_sel_pre", + .ops = &clk_regmap_mux_ops, + .parent_hws = (const struct clk_hw *[]) { + &cecb_32k_div.hw, + &cecb_32k_in.hw, + }, + .num_parents = 2, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_regmap cecb_32k_sel = { + .data = &(struct clk_regmap_mux_data) { + .offset = CECB_CLK_CTRL1, + .mask = 0x1, + .shift = 31, + .flags = CLK_MUX_ROUND_CLOSEST, + }, + .hw.init = &(struct clk_init_data){ + .name = "cecb_32k_sel", + .ops = &clk_regmap_mux_ops, + .parent_hws = (const struct clk_hw *[]) { + &cecb_32k_sel_pre.hw, + &rtc.hw, + }, + .num_parents = 2, + }, +}; + +static struct clk_regmap cecb_32k_out = { + .data = &(struct clk_regmap_gate_data){ + .offset = CECB_CLK_CTRL0, + .bit_idx = 30, + }, + .hw.init = &(struct clk_init_data){ + .name = "cecb_32k_out", + .ops = &clk_regmap_gate_ops, + .parent_hws = (const struct clk_hw *[]) { + &cecb_32k_sel.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +#define MESON_GATE(_name, _reg, _bit) \ + MESON_PCLK(_name, _reg, _bit, &sys.hw) + +static MESON_GATE(clktree, SYS_CLK_EN0, 0); +static MESON_GATE(reset_ctrl, SYS_CLK_EN0, 1); +static MESON_GATE(analog_ctrl, SYS_CLK_EN0, 2); +static MESON_GATE(pwr_ctrl, SYS_CLK_EN0, 3); +static MESON_GATE(pad_ctrl, SYS_CLK_EN0, 4); +static MESON_GATE(sys_ctrl, SYS_CLK_EN0, 5); +static MESON_GATE(temp_sensor, SYS_CLK_EN0, 6); +static MESON_GATE(am2axi_dev, SYS_CLK_EN0, 7); +static MESON_GATE(spicc_b, SYS_CLK_EN0, 8); +static MESON_GATE(spicc_a, SYS_CLK_EN0, 9); +static MESON_GATE(msr, SYS_CLK_EN0, 10); +static MESON_GATE(audio, SYS_CLK_EN0, 11); +static MESON_GATE(jtag_ctrl, SYS_CLK_EN0, 12); +static MESON_GATE(saradc_en, SYS_CLK_EN0, 13); +static MESON_GATE(pwm_ef, SYS_CLK_EN0, 14); +static MESON_GATE(pwm_cd, SYS_CLK_EN0, 15); +static MESON_GATE(pwm_ab, SYS_CLK_EN0, 16); +static MESON_GATE(cec, SYS_CLK_EN0, 17); +static MESON_GATE(i2c_s, SYS_CLK_EN0, 18); +static MESON_GATE(ir_ctrl, SYS_CLK_EN0, 19); +static MESON_GATE(i2c_m_d, SYS_CLK_EN0, 20); +static MESON_GATE(i2c_m_c, SYS_CLK_EN0, 21); +static MESON_GATE(i2c_m_b, SYS_CLK_EN0, 22); +static MESON_GATE(i2c_m_a, SYS_CLK_EN0, 23); +static MESON_GATE(acodec, SYS_CLK_EN0, 24); +static MESON_GATE(otp, SYS_CLK_EN0, 25); +static MESON_GATE(sd_emmc_a, SYS_CLK_EN0, 26); +static MESON_GATE(usb_phy, SYS_CLK_EN0, 27); +static MESON_GATE(usb_ctrl, SYS_CLK_EN0, 28); +static MESON_GATE(sys_dspb, SYS_CLK_EN0, 29); +static MESON_GATE(sys_dspa, SYS_CLK_EN0, 30); +static MESON_GATE(dma, SYS_CLK_EN0, 31); +static MESON_GATE(irq_ctrl, SYS_CLK_EN1, 0); +static MESON_GATE(nic, SYS_CLK_EN1, 1); +static MESON_GATE(gic, SYS_CLK_EN1, 2); +static MESON_GATE(uart_c, SYS_CLK_EN1, 3); +static MESON_GATE(uart_b, SYS_CLK_EN1, 4); +static MESON_GATE(uart_a, SYS_CLK_EN1, 5); +static MESON_GATE(sys_psram, SYS_CLK_EN1, 6); +static MESON_GATE(rsa, SYS_CLK_EN1, 8); +static MESON_GATE(coresight, SYS_CLK_EN1, 9); +static MESON_GATE(am2axi_vad, AXI_CLK_EN, 0); +static MESON_GATE(audio_vad, AXI_CLK_EN, 1); +static MESON_GATE(axi_dmc, AXI_CLK_EN, 3); +static MESON_GATE(axi_psram, AXI_CLK_EN, 4); +static MESON_GATE(ramb, AXI_CLK_EN, 5); +static MESON_GATE(rama, AXI_CLK_EN, 6); +static MESON_GATE(axi_spifc, AXI_CLK_EN, 7); +static MESON_GATE(axi_nic, AXI_CLK_EN, 8); +static MESON_GATE(axi_dma, AXI_CLK_EN, 9); +static MESON_GATE(cpu_ctrl, AXI_CLK_EN, 10); +static MESON_GATE(rom, AXI_CLK_EN, 11); +static MESON_GATE(prod_i2c, AXI_CLK_EN, 12); + +/* Array of all clocks registered by this provider */ +static struct clk_hw_onecell_data a1_periphs_clks = { + .hws = { + [CLKID_XTAL_IN] = &xtal_in.hw, + [CLKID_FIXPLL_IN] = &fixpll_in.hw, + [CLKID_USB_PHY_IN] = &usb_phy_in.hw, + [CLKID_USB_CTRL_IN] = &usb_ctrl_in.hw, + [CLKID_HIFIPLL_IN] = &hifipll_in.hw, + [CLKID_SYSPLL_IN] = &syspll_in.hw, + [CLKID_DDS_IN] = &dds_in.hw, + [CLKID_SYS] = &sys.hw, + [CLKID_CLKTREE] = &clktree.hw, + [CLKID_RESET_CTRL] = &reset_ctrl.hw, + [CLKID_ANALOG_CTRL] = &analog_ctrl.hw, + [CLKID_PWR_CTRL] = &pwr_ctrl.hw, + [CLKID_PAD_CTRL] = &pad_ctrl.hw, + [CLKID_SYS_CTRL] = &sys_ctrl.hw, + [CLKID_TEMP_SENSOR] = &temp_sensor.hw, + [CLKID_AM2AXI_DIV] = &am2axi_dev.hw, + [CLKID_SPICC_B] = &spicc_b.hw, + [CLKID_SPICC_A] = &spicc_a.hw, + [CLKID_MSR] = &msr.hw, + [CLKID_AUDIO] = &audio.hw, + [CLKID_JTAG_CTRL] = &jtag_ctrl.hw, + [CLKID_SARADC_EN] = &saradc_en.hw, + [CLKID_PWM_EF] = &pwm_ef.hw, + [CLKID_PWM_CD] = &pwm_cd.hw, + [CLKID_PWM_AB] = &pwm_ab.hw, + [CLKID_CEC] = &cec.hw, + [CLKID_I2C_S] = &i2c_s.hw, + [CLKID_IR_CTRL] = &ir_ctrl.hw, + [CLKID_I2C_M_D] = &i2c_m_d.hw, + [CLKID_I2C_M_C] = &i2c_m_c.hw, + [CLKID_I2C_M_B] = &i2c_m_b.hw, + [CLKID_I2C_M_A] = &i2c_m_a.hw, + [CLKID_ACODEC] = &acodec.hw, + [CLKID_OTP] = &otp.hw, + [CLKID_SD_EMMC_A] = &sd_emmc_a.hw, + [CLKID_USB_PHY] = &usb_phy.hw, + [CLKID_USB_CTRL] = &usb_ctrl.hw, + [CLKID_SYS_DSPB] = &sys_dspb.hw, + [CLKID_SYS_DSPA] = &sys_dspa.hw, + [CLKID_DMA] = &dma.hw, + [CLKID_IRQ_CTRL] = &irq_ctrl.hw, + [CLKID_NIC] = &nic.hw, + [CLKID_GIC] = &gic.hw, + [CLKID_UART_C] = &uart_c.hw, + [CLKID_UART_B] = &uart_b.hw, + [CLKID_UART_A] = &uart_a.hw, + [CLKID_SYS_PSRAM] = &sys_psram.hw, + [CLKID_RSA] = &rsa.hw, + [CLKID_CORESIGHT] = &coresight.hw, + [CLKID_AM2AXI_VAD] = &am2axi_vad.hw, + [CLKID_AUDIO_VAD] = &audio_vad.hw, + [CLKID_AXI_DMC] = &axi_dmc.hw, + [CLKID_AXI_PSRAM] = &axi_psram.hw, + [CLKID_RAMB] = &ramb.hw, + [CLKID_RAMA] = &rama.hw, + [CLKID_AXI_SPIFC] = &axi_spifc.hw, + [CLKID_AXI_NIC] = &axi_nic.hw, + [CLKID_AXI_DMA] = &axi_dma.hw, + [CLKID_CPU_CTRL] = &cpu_ctrl.hw, + [CLKID_ROM] = &rom.hw, + [CLKID_PROC_I2C] = &prod_i2c.hw, + [CLKID_DSPA_SEL] = &dspa_sel.hw, + [CLKID_DSPB_SEL] = &dspb_sel.hw, + [CLKID_DSPA_EN] = &dspa_en.hw, + [CLKID_DSPA_EN_NIC] = &dspa_en_nic.hw, + [CLKID_DSPB_EN] = &dspb_en.hw, + [CLKID_DSPB_EN_NIC] = &dspb_en_nic.hw, + [CLKID_RTC] = &rtc.hw, + [CLKID_CECA_32K] = &ceca_32k_out.hw, + [CLKID_CECB_32K] = &cecb_32k_out.hw, + [CLKID_24M] = &clk_24m.hw, + [CLKID_12M] = &clk_12m.hw, + [CLKID_FCLK_DIV2_DIVN] = &fclk_div2_divn.hw, + [CLKID_GEN] = &gen.hw, + [CLKID_SARADC_SEL] = &saradc_sel.hw, + [CLKID_SARADC] = &saradc.hw, + [CLKID_PWM_A] = &pwm_a.hw, + [CLKID_PWM_B] = &pwm_b.hw, + [CLKID_PWM_C] = &pwm_c.hw, + [CLKID_PWM_D] = &pwm_d.hw, + [CLKID_PWM_E] = &pwm_e.hw, + [CLKID_PWM_F] = &pwm_f.hw, + [CLKID_SPICC] = &spicc.hw, + [CLKID_TS] = &ts.hw, + [CLKID_SPIFC] = &spifc.hw, + [CLKID_USB_BUS] = &usb_bus.hw, + [CLKID_SD_EMMC] = &sd_emmc.hw, + [CLKID_PSRAM] = &psram.hw, + [CLKID_DMC] = &dmc.hw, + [CLKID_SYS_A_SEL] = &sys_a_sel.hw, + [CLKID_SYS_A_DIV] = &sys_a_div.hw, + [CLKID_SYS_A] = &sys_a.hw, + [CLKID_SYS_B_SEL] = &sys_b_sel.hw, + [CLKID_SYS_B_DIV] = &sys_b_div.hw, + [CLKID_SYS_B] = &sys_b.hw, + [CLKID_DSPA_A_SEL] = &dspa_a_sel.hw, + [CLKID_DSPA_A_DIV] = &dspa_a_div.hw, + [CLKID_DSPA_A] = &dspa_a.hw, + [CLKID_DSPA_B_SEL] = &dspa_b_sel.hw, + [CLKID_DSPA_B_DIV] = &dspa_b_div.hw, + [CLKID_DSPA_B] = &dspa_b.hw, + [CLKID_DSPB_A_SEL] = &dspb_a_sel.hw, + [CLKID_DSPB_A_DIV] = &dspb_a_div.hw, + [CLKID_DSPB_A] = &dspb_a.hw, + [CLKID_DSPB_B_SEL] = &dspb_b_sel.hw, + [CLKID_DSPB_B_DIV] = &dspb_b_div.hw, + [CLKID_DSPB_B] = &dspb_b.hw, + [CLKID_RTC_32K_IN] = &rtc_32k_in.hw, + [CLKID_RTC_32K_DIV] = &rtc_32k_div.hw, + [CLKID_RTC_32K_XTAL] = &rtc_32k_xtal.hw, + [CLKID_RTC_32K_SEL] = &rtc_32k_sel.hw, + [CLKID_CECB_32K_IN] = &cecb_32k_in.hw, + [CLKID_CECB_32K_DIV] = &cecb_32k_div.hw, + [CLKID_CECB_32K_SEL_PRE] = &cecb_32k_sel_pre.hw, + [CLKID_CECB_32K_SEL] = &cecb_32k_sel.hw, + [CLKID_CECA_32K_IN] = &ceca_32k_in.hw, + [CLKID_CECA_32K_DIV] = &ceca_32k_div.hw, + [CLKID_CECA_32K_SEL_PRE] = &ceca_32k_sel_pre.hw, + [CLKID_CECA_32K_SEL] = &ceca_32k_sel.hw, + [CLKID_DIV2_PRE] = &fclk_div2_divn_pre.hw, + [CLKID_24M_DIV2] = &clk_24m_div2.hw, + [CLKID_GEN_SEL] = &gen_sel.hw, + [CLKID_GEN_DIV] = &gen_div.hw, + [CLKID_SARADC_DIV] = &saradc_div.hw, + [CLKID_PWM_A_SEL] = &pwm_a_sel.hw, + [CLKID_PWM_A_DIV] = &pwm_a_div.hw, + [CLKID_PWM_B_SEL] = &pwm_b_sel.hw, + [CLKID_PWM_B_DIV] = &pwm_b_div.hw, + [CLKID_PWM_C_SEL] = &pwm_c_sel.hw, + [CLKID_PWM_C_DIV] = &pwm_c_div.hw, + [CLKID_PWM_D_SEL] = &pwm_d_sel.hw, + [CLKID_PWM_D_DIV] = &pwm_d_div.hw, + [CLKID_PWM_E_SEL] = &pwm_e_sel.hw, + [CLKID_PWM_E_DIV] = &pwm_e_div.hw, + [CLKID_PWM_F_SEL] = &pwm_f_sel.hw, + [CLKID_PWM_F_DIV] = &pwm_f_div.hw, + [CLKID_SPICC_SEL] = &spicc_sel.hw, + [CLKID_SPICC_DIV] = &spicc_div.hw, + [CLKID_SPICC_SEL2] = &spicc_sel2.hw, + [CLKID_TS_DIV] = &ts_div.hw, + [CLKID_SPIFC_SEL] = &spifc_sel.hw, + [CLKID_SPIFC_DIV] = &spifc_div.hw, + [CLKID_SPIFC_SEL2] = &spifc_sel2.hw, + [CLKID_USB_BUS_SEL] = &usb_bus_sel.hw, + [CLKID_USB_BUS_DIV] = &usb_bus_div.hw, + [CLKID_SD_EMMC_SEL] = &sd_emmc_sel.hw, + [CLKID_SD_EMMC_DIV] = &sd_emmc_div.hw, + [CLKID_SD_EMMC_SEL2] = &sd_emmc_sel2.hw, + [CLKID_PSRAM_SEL] = &psram_sel.hw, + [CLKID_PSRAM_DIV] = &psram_div.hw, + [CLKID_PSRAM_SEL2] = &psram_sel2.hw, + [CLKID_DMC_SEL] = &dmc_sel.hw, + [CLKID_DMC_DIV] = &dmc_div.hw, + [CLKID_DMC_SEL2] = &dmc_sel2.hw, + [NR_CLKS] = NULL, + }, + .num = NR_CLKS, +}; + +/* Convenience table to populate regmap in .probe */ +static struct clk_regmap *const a1_periphs_regmaps[] = { + &xtal_in, + &fixpll_in, + &usb_phy_in, + &usb_ctrl_in, + &hifipll_in, + &syspll_in, + &dds_in, + &sys, + &clktree, + &reset_ctrl, + &analog_ctrl, + &pwr_ctrl, + &pad_ctrl, + &sys_ctrl, + &temp_sensor, + &am2axi_dev, + &spicc_b, + &spicc_a, + &msr, + &audio, + &jtag_ctrl, + &saradc_en, + &pwm_ef, + &pwm_cd, + &pwm_ab, + &cec, + &i2c_s, + &ir_ctrl, + &i2c_m_d, + &i2c_m_c, + &i2c_m_b, + &i2c_m_a, + &acodec, + &otp, + &sd_emmc_a, + &usb_phy, + &usb_ctrl, + &sys_dspb, + &sys_dspa, + &dma, + &irq_ctrl, + &nic, + &gic, + &uart_c, + &uart_b, + &uart_a, + &sys_psram, + &rsa, + &coresight, + &am2axi_vad, + &audio_vad, + &axi_dmc, + &axi_psram, + &ramb, + &rama, + &axi_spifc, + &axi_nic, + &axi_dma, + &cpu_ctrl, + &rom, + &prod_i2c, + &dspa_sel, + &dspb_sel, + &dspa_en, + &dspa_en_nic, + &dspb_en, + &dspb_en_nic, + &rtc, + &ceca_32k_out, + &cecb_32k_out, + &clk_24m, + &clk_12m, + &fclk_div2_divn, + &gen, + &saradc_sel, + &saradc, + &pwm_a, + &pwm_b, + &pwm_c, + &pwm_d, + &pwm_e, + &pwm_f, + &spicc, + &ts, + &spifc, + &usb_bus, + &sd_emmc, + &psram, + &dmc, + &sys_a_sel, + &sys_a_div, + &sys_a, + &sys_b_sel, + &sys_b_div, + &sys_b, + &dspa_a_sel, + &dspa_a_div, + &dspa_a, + &dspa_b_sel, + &dspa_b_div, + &dspa_b, + &dspb_a_sel, + &dspb_a_div, + &dspb_a, + &dspb_b_sel, + &dspb_b_div, + &dspb_b, + &rtc_32k_in, + &rtc_32k_div, + &rtc_32k_xtal, + &rtc_32k_sel, + &cecb_32k_in, + &cecb_32k_div, + &cecb_32k_sel_pre, + &cecb_32k_sel, + &ceca_32k_in, + &ceca_32k_div, + &ceca_32k_sel_pre, + &ceca_32k_sel, + &fclk_div2_divn_pre, + &gen_sel, + &gen_div, + &saradc_div, + &pwm_a_sel, + &pwm_a_div, + &pwm_b_sel, + &pwm_b_div, + &pwm_c_sel, + &pwm_c_div, + &pwm_d_sel, + &pwm_d_div, + &pwm_e_sel, + &pwm_e_div, + &pwm_f_sel, + &pwm_f_div, + &spicc_sel, + &spicc_div, + &spicc_sel2, + &ts_div, + &spifc_sel, + &spifc_div, + &spifc_sel2, + &usb_bus_sel, + &usb_bus_div, + &sd_emmc_sel, + &sd_emmc_div, + &sd_emmc_sel2, + &psram_sel, + &psram_div, + &psram_sel2, + &dmc_sel, + &dmc_div, + &dmc_sel2, +}; + +static struct regmap_config a1_periphs_regmap_cfg = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, +}; + +static int meson_a1_periphs_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + void __iomem *base; + struct regmap *map; + int clkid, i, err; + + base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) + return dev_err_probe(dev, PTR_ERR(base), + "can't ioremap resource\n"); + + map = devm_regmap_init_mmio(dev, base, &a1_periphs_regmap_cfg); + if (IS_ERR(map)) + return dev_err_probe(dev, PTR_ERR(map), + "can't init regmap mmio region\n"); + + /* Populate regmap for the regmap backed clocks */ + for (i = 0; i < ARRAY_SIZE(a1_periphs_regmaps); i++) + a1_periphs_regmaps[i]->map = map; + + for (clkid = 0; clkid < a1_periphs_clks.num; clkid++) { + err = devm_clk_hw_register(dev, a1_periphs_clks.hws[clkid]); + if (err) + return dev_err_probe(dev, err, + "clock[%d] registration failed\n", + clkid); + } + + return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, + &a1_periphs_clks); +} + +static const struct of_device_id a1_periphs_clkc_match_table[] = { + { .compatible = "amlogic,a1-peripherals-clkc", }, + {} +}; +MODULE_DEVICE_TABLE(of, a1_periphs_clkc_match_table); + +static struct platform_driver a1_periphs_clkc_driver = { + .probe = meson_a1_periphs_probe, + .driver = { + .name = "a1-peripherals-clkc", + .of_match_table = a1_periphs_clkc_match_table, + }, +}; + +module_platform_driver(a1_periphs_clkc_driver); +MODULE_AUTHOR("Jian Hu "); +MODULE_AUTHOR("Dmitry Rokosov "); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/a1-peripherals.h b/drivers/clk/meson/a1-peripherals.h new file mode 100644 index 000000000000..526fc9ba5c9f --- /dev/null +++ b/drivers/clk/meson/a1-peripherals.h @@ -0,0 +1,113 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Amlogic A1 Peripherals Clock Controller internals + * + * Copyright (c) 2019 Amlogic, Inc. All rights reserved. + * Author: Jian Hu + * + * Copyright (c) 2023, SberDevices. All Rights Reserved. + * Author: Dmitry Rokosov + */ + +#ifndef __A1_PERIPHERALS_H +#define __A1_PERIPHERALS_H + +/* peripherals clock controller register offset */ +#define SYS_OSCIN_CTRL 0x0 +#define RTC_BY_OSCIN_CTRL0 0x4 +#define RTC_BY_OSCIN_CTRL1 0x8 +#define RTC_CTRL 0xc +#define SYS_CLK_CTRL0 0x10 +#define SYS_CLK_EN0 0x1c +#define SYS_CLK_EN1 0x20 +#define AXI_CLK_EN 0x24 +#define DSPA_CLK_EN 0x28 +#define DSPB_CLK_EN 0x2c +#define DSPA_CLK_CTRL0 0x30 +#define DSPB_CLK_CTRL0 0x34 +#define CLK12_24_CTRL 0x38 +#define GEN_CLK_CTRL 0x3c +#define SAR_ADC_CLK_CTRL 0xc0 +#define PWM_CLK_AB_CTRL 0xc4 +#define PWM_CLK_CD_CTRL 0xc8 +#define PWM_CLK_EF_CTRL 0xcc +#define SPICC_CLK_CTRL 0xd0 +#define TS_CLK_CTRL 0xd4 +#define SPIFC_CLK_CTRL 0xd8 +#define USB_BUSCLK_CTRL 0xdc +#define SD_EMMC_CLK_CTRL 0xe0 +#define CECA_CLK_CTRL0 0xe4 +#define CECA_CLK_CTRL1 0xe8 +#define CECB_CLK_CTRL0 0xec +#define CECB_CLK_CTRL1 0xf0 +#define PSRAM_CLK_CTRL 0xf4 +#define DMC_CLK_CTRL 0xf8 + +/* include the CLKIDs that have been made part of the DT binding */ +#include + +/* + * CLKID index values for internal clocks + * + * These indices are entirely contrived and do not map onto the hardware. + * It has now been decided to expose everything by default in the DT header: + * include/dt-bindings/clock/a1-peripherals-clkc.h. + * Only the clocks ids we don't want to expose, such as the internal muxes and + * dividers of composite clocks, will remain defined here. + */ +#define CLKID_XTAL_IN 0 +#define CLKID_DSPA_SEL 61 +#define CLKID_DSPB_SEL 62 +#define CLKID_SARADC_SEL 74 +#define CLKID_SYS_A_SEL 89 +#define CLKID_SYS_A_DIV 90 +#define CLKID_SYS_A 91 +#define CLKID_SYS_B_SEL 92 +#define CLKID_SYS_B_DIV 93 +#define CLKID_SYS_B 94 +#define CLKID_DSPA_A_DIV 96 +#define CLKID_DSPA_A 97 +#define CLKID_DSPA_B_DIV 99 +#define CLKID_DSPA_B 100 +#define CLKID_DSPB_A_DIV 102 +#define CLKID_DSPB_A 103 +#define CLKID_DSPB_B_DIV 105 +#define CLKID_DSPB_B 106 +#define CLKID_RTC_32K_IN 107 +#define CLKID_RTC_32K_DIV 108 +#define CLKID_RTC_32K_XTAL 109 +#define CLKID_RTC_32K_SEL 110 +#define CLKID_CECB_32K_IN 111 +#define CLKID_CECB_32K_DIV 112 +#define CLKID_CECA_32K_IN 115 +#define CLKID_CECA_32K_DIV 116 +#define CLKID_DIV2_PRE 119 +#define CLKID_24M_DIV2 120 +#define CLKID_GEN_DIV 122 +#define CLKID_SARADC_DIV 123 +#define CLKID_PWM_A_DIV 125 +#define CLKID_PWM_B_DIV 127 +#define CLKID_PWM_C_DIV 129 +#define CLKID_PWM_D_DIV 131 +#define CLKID_PWM_E_DIV 133 +#define CLKID_PWM_F_DIV 135 +#define CLKID_SPICC_SEL 136 +#define CLKID_SPICC_DIV 137 +#define CLKID_SPICC_SEL2 138 +#define CLKID_TS_DIV 139 +#define CLKID_SPIFC_SEL 140 +#define CLKID_SPIFC_DIV 141 +#define CLKID_SPIFC_SEL2 142 +#define CLKID_USB_BUS_SEL 143 +#define CLKID_USB_BUS_DIV 144 +#define CLKID_SD_EMMC_SEL 145 +#define CLKID_SD_EMMC_DIV 146 +#define CLKID_PSRAM_SEL 148 +#define CLKID_PSRAM_DIV 149 +#define CLKID_PSRAM_SEL2 150 +#define CLKID_DMC_SEL 151 +#define CLKID_DMC_DIV 152 +#define CLKID_DMC_SEL2 153 +#define NR_CLKS 154 + +#endif /* __A1_PERIPHERALS_H */ -- cgit v1.2.3-58-ga151 From 14e53669cbf4ab361c849efbe12aa0f5bb5db5f6 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 2 Jun 2023 10:50:38 +0200 Subject: clk: renesas: cpg-mssr: Convert to readl_poll_timeout_atomic() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use readl_poll_timeout_atomic() instead of open-coding the same operation. As typically no retries are needed, 10 µs is a suitable timeout value. Signed-off-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/832d29fd9aa3239ea949535309d2bdb003d40c9e.1685692810.git.geert+renesas@glider.be --- drivers/clk/renesas/renesas-cpg-mssr.c | 31 +++++++++++-------------------- 1 file changed, 11 insertions(+), 20 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c index e9c0e341380e..2772499d2016 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.c +++ b/drivers/clk/renesas/renesas-cpg-mssr.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -196,8 +197,8 @@ static int cpg_mstp_clock_endisable(struct clk_hw *hw, bool enable) struct device *dev = priv->dev; u32 bitmask = BIT(bit); unsigned long flags; - unsigned int i; u32 value; + int error; dev_dbg(dev, "MSTP %u%02u/%pC %s\n", reg, bit, hw->clk, enable ? "ON" : "OFF"); @@ -228,19 +229,13 @@ static int cpg_mstp_clock_endisable(struct clk_hw *hw, bool enable) if (!enable || priv->reg_layout == CLK_REG_LAYOUT_RZ_A) return 0; - for (i = 1000; i > 0; --i) { - if (!(readl(priv->base + priv->status_regs[reg]) & bitmask)) - break; - cpu_relax(); - } - - if (!i) { + error = readl_poll_timeout_atomic(priv->base + priv->status_regs[reg], + value, !(value & bitmask), 0, 10); + if (error) dev_err(dev, "Failed to enable SMSTP %p[%d]\n", priv->base + priv->control_regs[reg], bit); - return -ETIMEDOUT; - } - return 0; + return error; } static int cpg_mstp_clock_enable(struct clk_hw *hw) @@ -896,8 +891,9 @@ static int cpg_mssr_suspend_noirq(struct device *dev) static int cpg_mssr_resume_noirq(struct device *dev) { struct cpg_mssr_priv *priv = dev_get_drvdata(dev); - unsigned int reg, i; + unsigned int reg; u32 mask, oldval, newval; + int error; /* This is the best we can do to check for the presence of PSCI */ if (!psci_ops.cpu_suspend) @@ -935,14 +931,9 @@ static int cpg_mssr_resume_noirq(struct device *dev) if (!mask) continue; - for (i = 1000; i > 0; --i) { - oldval = readl(priv->base + priv->status_regs[reg]); - if (!(oldval & mask)) - break; - cpu_relax(); - } - - if (!i) + error = readl_poll_timeout_atomic(priv->base + priv->status_regs[reg], + oldval, !(oldval & mask), 0, 10); + if (error) dev_warn(dev, "Failed to enable SMSTP%u[0x%x]\n", reg, oldval & mask); } -- cgit v1.2.3-58-ga151 From d0414e762f4d2151e29c1a89fafe0368d8362419 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 2 Jun 2023 10:50:39 +0200 Subject: clk: renesas: mstp: Convert to readl_poll_timeout_atomic() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use readl_poll_timeout_atomic() instead of open-coding the same operation. As typically no retries are needed, 10 µs is a suitable timeout value. Signed-off-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/bce7d0bdd80c800aa150f1868b610b7d94f4cc66.1685692810.git.geert+renesas@glider.be --- drivers/clk/renesas/clk-mstp.c | 18 +++++++----------- 1 file changed, 7 insertions(+), 11 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/renesas/clk-mstp.c b/drivers/clk/renesas/clk-mstp.c index 90804ac06fa5..6280f4dfed71 100644 --- a/drivers/clk/renesas/clk-mstp.c +++ b/drivers/clk/renesas/clk-mstp.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -78,8 +79,8 @@ static int cpg_mstp_clock_endisable(struct clk_hw *hw, bool enable) struct mstp_clock_group *group = clock->group; u32 bitmask = BIT(clock->bit_index); unsigned long flags; - unsigned int i; u32 value; + int ret; spin_lock_irqsave(&group->lock, flags); @@ -101,19 +102,14 @@ static int cpg_mstp_clock_endisable(struct clk_hw *hw, bool enable) if (!enable || !group->mstpsr) return 0; - for (i = 1000; i > 0; --i) { - if (!(cpg_mstp_read(group, group->mstpsr) & bitmask)) - break; - cpu_relax(); - } - - if (!i) { + /* group->width_8bit is always false if group->mstpsr is present */ + ret = readl_poll_timeout_atomic(group->mstpsr, value, + !(value & bitmask), 0, 10); + if (ret) pr_err("%s: failed to enable %p[%d]\n", __func__, group->smstpcr, clock->bit_index); - return -ETIMEDOUT; - } - return 0; + return ret; } static int cpg_mstp_clock_enable(struct clk_hw *hw) -- cgit v1.2.3-58-ga151 From 7df8eea64a417f1db6777cddc1d7eda3634b7175 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 2 Jun 2023 10:50:40 +0200 Subject: clk: renesas: rzg2l: Convert to readl_poll_timeout_atomic() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use readl_poll_timeout_atomic() instead of open-coding the same operation. As typically no retries are needed, 10 µs is a suitable timeout value. Signed-off-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/900543d4b9abc1004e6aecdb676f23e5508ae96f.1685692810.git.geert+renesas@glider.be --- drivers/clk/renesas/rzg2l-cpg.c | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/renesas/rzg2l-cpg.c b/drivers/clk/renesas/rzg2l-cpg.c index ca8b921c7762..bc623515ad84 100644 --- a/drivers/clk/renesas/rzg2l-cpg.c +++ b/drivers/clk/renesas/rzg2l-cpg.c @@ -903,9 +903,9 @@ static int rzg2l_mod_clock_endisable(struct clk_hw *hw, bool enable) unsigned int reg = clock->off; struct device *dev = priv->dev; unsigned long flags; - unsigned int i; u32 bitmask = BIT(clock->bit); u32 value; + int error; if (!clock->off) { dev_dbg(dev, "%pC does not support ON/OFF\n", hw->clk); @@ -930,19 +930,13 @@ static int rzg2l_mod_clock_endisable(struct clk_hw *hw, bool enable) if (!priv->info->has_clk_mon_regs) return 0; - for (i = 1000; i > 0; --i) { - if (((readl(priv->base + CLK_MON_R(reg))) & bitmask)) - break; - cpu_relax(); - } - - if (!i) { + error = readl_poll_timeout_atomic(priv->base + CLK_MON_R(reg), value, + value & bitmask, 0, 10); + if (error) dev_err(dev, "Failed to enable CLK_ON %p\n", priv->base + CLK_ON_R(reg)); - return -ETIMEDOUT; - } - return 0; + return error; } static int rzg2l_mod_clock_enable(struct clk_hw *hw) -- cgit v1.2.3-58-ga151 From ed046ac74da0b5602566073023a1519b5ae657b7 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:03 +0200 Subject: clk: Export clk_hw_forward_rate_request() Commit 262ca38f4b6e ("clk: Stop forwarding clk_rate_requests to the parent") introduced the public clk_hw_forward_rate_request() function, but didn't export the symbol. Make sure it's the case. Fixes: 262ca38f4b6e ("clk: Stop forwarding clk_rate_requests to the parent") Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-1-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 27c30a533759..e495dd7a1eae 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1549,6 +1549,7 @@ void clk_hw_forward_rate_request(const struct clk_hw *hw, parent->core, req, parent_rate); } +EXPORT_SYMBOL_GPL(clk_hw_forward_rate_request); static bool clk_core_can_round(struct clk_core * const core) { -- cgit v1.2.3-58-ga151 From 9633b4c17b734de8308461182facc931042824b7 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:04 +0200 Subject: clk: test: Fix type sign of rounded rate variables clk_round_rate() may return a negative error code, but most of the variables we defined to store its returned value are unsigned. This obviously leads to issues on error. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-2-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk_test.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/clk_test.c b/drivers/clk/clk_test.c index f9a5c2964c65..2cb51153750d 100644 --- a/drivers/clk/clk_test.c +++ b/drivers/clk/clk_test.c @@ -266,7 +266,8 @@ static void clk_test_round_set_get_rate(struct kunit *test) struct clk_dummy_context *ctx = test->priv; struct clk_hw *hw = &ctx->hw; struct clk *clk = clk_hw_get_clk(hw, NULL); - unsigned long rounded_rate, set_rate; + unsigned long set_rate; + long rounded_rate; rounded_rate = clk_round_rate(clk, DUMMY_CLOCK_RATE_1); KUNIT_ASSERT_GT(test, rounded_rate, 0); @@ -851,7 +852,7 @@ clk_test_orphan_transparent_multiple_parent_mux_set_range_round_rate(struct kuni struct clk_multiple_parent_ctx *ctx = test->priv; struct clk_hw *hw = &ctx->hw; struct clk *clk = clk_hw_get_clk(hw, NULL); - unsigned long rate; + long rate; int ret; ret = clk_set_rate_range(clk, DUMMY_CLOCK_RATE_1, DUMMY_CLOCK_RATE_2); @@ -1090,7 +1091,7 @@ clk_test_single_parent_mux_set_range_round_rate_parent_only(struct kunit *test) struct clk_hw *hw = &ctx->hw; struct clk *clk = clk_hw_get_clk(hw, NULL); struct clk *parent; - unsigned long rate; + long rate; int ret; parent = clk_get_parent(clk); @@ -1120,7 +1121,7 @@ clk_test_single_parent_mux_set_range_round_rate_child_smaller(struct kunit *test struct clk_hw *hw = &ctx->hw; struct clk *clk = clk_hw_get_clk(hw, NULL); struct clk *parent; - unsigned long rate; + long rate; int ret; parent = clk_get_parent(clk); @@ -1158,7 +1159,7 @@ clk_test_single_parent_mux_set_range_round_rate_parent_smaller(struct kunit *tes struct clk_hw *hw = &ctx->hw; struct clk *clk = clk_hw_get_clk(hw, NULL); struct clk *parent; - unsigned long rate; + long rate; int ret; parent = clk_get_parent(clk); -- cgit v1.2.3-58-ga151 From 1b4e99fda73fd030635f378ee059257f6ad0f780 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 5 May 2023 13:25:05 +0200 Subject: clk: Move no reparent case into a separate function MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We'll need to turn the code in clk_mux_determine_rate_flags() to deal with CLK_SET_RATE_NO_REPARENT into a helper clock drivers will be able to use if they don't want to allow reparenting. Cc: Abel Vesa Cc: Alessandro Zummo Cc: Alexandre Belloni Cc: Alexandre Torgue Cc: "Andreas Färber" Cc: AngeloGioacchino Del Regno Cc: Baolin Wang Cc: Charles Keepax Cc: Chen-Yu Tsai Cc: Chen-Yu Tsai Cc: Chunyan Zhang Cc: Claudiu Beznea Cc: Daniel Vetter Cc: David Airlie Cc: David Lechner Cc: Dinh Nguyen Cc: Fabio Estevam Cc: Geert Uytterhoeven Cc: Jaroslav Kysela Cc: Jernej Skrabec Cc: Jonathan Hunter Cc: Kishon Vijay Abraham I Cc: Liam Girdwood Cc: Linus Walleij Cc: Luca Ceresoli Cc: Manivannan Sadhasivam Cc: Mark Brown Cc: Markus Schneider-Pargmann Cc: Max Filippov Cc: Maxime Coquelin Cc: Mikko Perttunen Cc: Miles Chen Cc: Nicolas Ferre Cc: Orson Zhai Cc: Paul Cercueil Cc: Peng Fan Cc: Peter De Schrijver Cc: Prashant Gaikwad Cc: Richard Fitzgerald Cc: Samuel Holland Cc: Sascha Hauer Cc: Sekhar Nori Cc: Shawn Guo Cc: Takashi Iwai Cc: Thierry Reding Cc: Ulf Hansson Cc: Vinod Koul Cc: dri-devel@lists.freedesktop.org Cc: linux-actions@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mips@vger.kernel.org Cc: linux-phy@lists.infradead.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rtc@vger.kernel.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-sunxi@lists.linux.dev Cc: linux-tegra@vger.kernel.org Cc: NXP Linux Team Cc: patches@opensource.cirrus.com Cc: Pengutronix Kernel Team Signed-off-by: Stephen Boyd Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-3-971d5077e7d2@cerno.tech --- drivers/clk/clk.c | 75 +++++++++++++++++++++++++++++++------------------------ 1 file changed, 43 insertions(+), 32 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index e495dd7a1eae..f57f821a5e5a 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -594,45 +594,58 @@ clk_core_forward_rate_req(struct clk_core *core, req->max_rate = old_req->max_rate; } -int clk_mux_determine_rate_flags(struct clk_hw *hw, - struct clk_rate_request *req, - unsigned long flags) +static int +clk_core_determine_rate_no_reparent(struct clk_hw *hw, + struct clk_rate_request *req) { - struct clk_core *core = hw->core, *parent, *best_parent = NULL; - int i, num_parents, ret; - unsigned long best = 0; - - /* if NO_REPARENT flag set, pass through to current parent */ - if (core->flags & CLK_SET_RATE_NO_REPARENT) { - parent = core->parent; - if (core->flags & CLK_SET_RATE_PARENT) { - struct clk_rate_request parent_req; + struct clk_core *core = hw->core; + struct clk_core *parent = core->parent; + unsigned long best; + int ret; - if (!parent) { - req->rate = 0; - return 0; - } + if (core->flags & CLK_SET_RATE_PARENT) { + struct clk_rate_request parent_req; - clk_core_forward_rate_req(core, req, parent, &parent_req, req->rate); + if (!parent) { + req->rate = 0; + return 0; + } - trace_clk_rate_request_start(&parent_req); + clk_core_forward_rate_req(core, req, parent, &parent_req, + req->rate); - ret = clk_core_round_rate_nolock(parent, &parent_req); - if (ret) - return ret; + trace_clk_rate_request_start(&parent_req); - trace_clk_rate_request_done(&parent_req); + ret = clk_core_round_rate_nolock(parent, &parent_req); + if (ret) + return ret; - best = parent_req.rate; - } else if (parent) { - best = clk_core_get_rate_nolock(parent); - } else { - best = clk_core_get_rate_nolock(core); - } + trace_clk_rate_request_done(&parent_req); - goto out; + best = parent_req.rate; + } else if (parent) { + best = clk_core_get_rate_nolock(parent); + } else { + best = clk_core_get_rate_nolock(core); } + req->rate = best; + + return 0; +} + +int clk_mux_determine_rate_flags(struct clk_hw *hw, + struct clk_rate_request *req, + unsigned long flags) +{ + struct clk_core *core = hw->core, *parent, *best_parent = NULL; + int i, num_parents, ret; + unsigned long best = 0; + + /* if NO_REPARENT flag set, pass through to current parent */ + if (core->flags & CLK_SET_RATE_NO_REPARENT) + return clk_core_determine_rate_no_reparent(hw, req); + /* find the parent that can provide the fastest rate <= rate */ num_parents = core->num_parents; for (i = 0; i < num_parents; i++) { @@ -670,9 +683,7 @@ int clk_mux_determine_rate_flags(struct clk_hw *hw, if (!best_parent) return -EINVAL; -out: - if (best_parent) - req->best_parent_hw = best_parent->hw; + req->best_parent_hw = best_parent->hw; req->best_parent_rate = best; req->rate = best; -- cgit v1.2.3-58-ga151 From 33b70fbc4f815f0acb327fa506c988ef25cd943d Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 5 May 2023 13:25:06 +0200 Subject: clk: Introduce clk_hw_determine_rate_no_reparent() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Some clock drivers do not want to allow any reparenting on a given clock, but usually do so by not providing any determine_rate implementation. Whenever we call clk_round_rate() or clk_set_rate(), this leads to clk_core_can_round() returning false and thus the rest of the function either forwarding the rate request to its current parent if CLK_SET_RATE_PARENT is set, or just returning the current clock rate. This behaviour happens implicitly, and as we move forward to making a determine_rate implementation required for muxes, we need some way to explicitly opt-in for that behaviour. Fortunately, this is exactly what the clk_core_determine_rate_no_reparent() function is doing, so we can simply make it available to drivers. Cc: Abel Vesa Cc: Alessandro Zummo Cc: Alexandre Belloni Cc: Alexandre Torgue Cc: "Andreas Färber" Cc: AngeloGioacchino Del Regno Cc: Baolin Wang Cc: Charles Keepax Cc: Chen-Yu Tsai Cc: Chen-Yu Tsai Cc: Chunyan Zhang Cc: Claudiu Beznea Cc: Daniel Vetter Cc: David Airlie Cc: David Lechner Cc: Dinh Nguyen Cc: Fabio Estevam Cc: Geert Uytterhoeven Cc: Jaroslav Kysela Cc: Jernej Skrabec Cc: Jonathan Hunter Cc: Kishon Vijay Abraham I Cc: Liam Girdwood Cc: Linus Walleij Cc: Luca Ceresoli Cc: Manivannan Sadhasivam Cc: Mark Brown Cc: Markus Schneider-Pargmann Cc: Max Filippov Cc: Maxime Coquelin Cc: Mikko Perttunen Cc: Miles Chen Cc: Nicolas Ferre Cc: Orson Zhai Cc: Paul Cercueil Cc: Peng Fan Cc: Peter De Schrijver Cc: Prashant Gaikwad Cc: Richard Fitzgerald Cc: Samuel Holland Cc: Sascha Hauer Cc: Sekhar Nori Cc: Shawn Guo Cc: Takashi Iwai Cc: Thierry Reding Cc: Ulf Hansson Cc: Vinod Koul Cc: dri-devel@lists.freedesktop.org Cc: linux-actions@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mips@vger.kernel.org Cc: linux-phy@lists.infradead.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rtc@vger.kernel.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-sunxi@lists.linux.dev Cc: linux-tegra@vger.kernel.org Cc: NXP Linux Team Cc: patches@opensource.cirrus.com Cc: Pengutronix Kernel Team Signed-off-by: Stephen Boyd Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-4-971d5077e7d2@cerno.tech | Reported-by: kernel test robot : --- drivers/clk/clk.c | 19 ++++++ drivers/clk/clk_test.c | 152 +++++++++++++++++++++++++++++++++++++++++++ include/linux/clk-provider.h | 2 + 3 files changed, 173 insertions(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index f57f821a5e5a..dcc5378f8920 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -783,6 +783,25 @@ int __clk_mux_determine_rate_closest(struct clk_hw *hw, } EXPORT_SYMBOL_GPL(__clk_mux_determine_rate_closest); +/* + * clk_hw_determine_rate_no_reparent - clk_ops::determine_rate implementation for a clk that doesn't reparent + * @hw: mux type clk to determine rate on + * @req: rate request, also used to return preferred frequency + * + * Helper for finding best parent rate to provide a given frequency. + * This can be used directly as a determine_rate callback (e.g. for a + * mux), or from a more complex clock that may combine a mux with other + * operations. + * + * Returns: 0 on success, -EERROR value on error + */ +int clk_hw_determine_rate_no_reparent(struct clk_hw *hw, + struct clk_rate_request *req) +{ + return clk_core_determine_rate_no_reparent(hw, req); +} +EXPORT_SYMBOL_GPL(clk_hw_determine_rate_no_reparent); + /*** clk api ***/ static void clk_core_rate_unprotect(struct clk_core *core) diff --git a/drivers/clk/clk_test.c b/drivers/clk/clk_test.c index 2cb51153750d..b3ed3b0e4c31 100644 --- a/drivers/clk/clk_test.c +++ b/drivers/clk/clk_test.c @@ -141,6 +141,12 @@ static const struct clk_ops clk_multiple_parents_mux_ops = { .determine_rate = __clk_mux_determine_rate_closest, }; +static const struct clk_ops clk_multiple_parents_no_reparent_mux_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, + .get_parent = clk_multiple_parents_mux_get_parent, + .set_parent = clk_multiple_parents_mux_set_parent, +}; + static int clk_test_init_with_ops(struct kunit *test, const struct clk_ops *ops) { struct clk_dummy_context *ctx; @@ -2395,10 +2401,156 @@ static struct kunit_suite clk_mux_notifier_test_suite = { .test_cases = clk_mux_notifier_test_cases, }; +static int +clk_mux_no_reparent_test_init(struct kunit *test) +{ + struct clk_multiple_parent_ctx *ctx; + const char *parents[2] = { "parent-0", "parent-1"}; + int ret; + + ctx = kunit_kzalloc(test, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + test->priv = ctx; + + ctx->parents_ctx[0].hw.init = CLK_HW_INIT_NO_PARENT("parent-0", + &clk_dummy_rate_ops, + 0); + ctx->parents_ctx[0].rate = DUMMY_CLOCK_RATE_1; + ret = clk_hw_register(NULL, &ctx->parents_ctx[0].hw); + if (ret) + return ret; + + ctx->parents_ctx[1].hw.init = CLK_HW_INIT_NO_PARENT("parent-1", + &clk_dummy_rate_ops, + 0); + ctx->parents_ctx[1].rate = DUMMY_CLOCK_RATE_2; + ret = clk_hw_register(NULL, &ctx->parents_ctx[1].hw); + if (ret) + return ret; + + ctx->current_parent = 0; + ctx->hw.init = CLK_HW_INIT_PARENTS("test-mux", parents, + &clk_multiple_parents_no_reparent_mux_ops, + 0); + ret = clk_hw_register(NULL, &ctx->hw); + if (ret) + return ret; + + return 0; +} + +static void +clk_mux_no_reparent_test_exit(struct kunit *test) +{ + struct clk_multiple_parent_ctx *ctx = test->priv; + + clk_hw_unregister(&ctx->hw); + clk_hw_unregister(&ctx->parents_ctx[0].hw); + clk_hw_unregister(&ctx->parents_ctx[1].hw); +} + +/* + * Test that if the we have a mux that cannot change parent and we call + * clk_round_rate() on it with a rate that should cause it to change + * parent, it won't. + */ +static void clk_mux_no_reparent_round_rate(struct kunit *test) +{ + struct clk_multiple_parent_ctx *ctx = test->priv; + struct clk_hw *hw = &ctx->hw; + struct clk *clk = clk_hw_get_clk(hw, NULL); + struct clk *other_parent, *parent; + unsigned long other_parent_rate; + unsigned long parent_rate; + long rounded_rate; + + parent = clk_get_parent(clk); + KUNIT_ASSERT_PTR_NE(test, parent, NULL); + + parent_rate = clk_get_rate(parent); + KUNIT_ASSERT_GT(test, parent_rate, 0); + + other_parent = clk_hw_get_clk(&ctx->parents_ctx[1].hw, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, other_parent); + KUNIT_ASSERT_FALSE(test, clk_is_match(parent, other_parent)); + + other_parent_rate = clk_get_rate(other_parent); + KUNIT_ASSERT_GT(test, other_parent_rate, 0); + clk_put(other_parent); + + rounded_rate = clk_round_rate(clk, other_parent_rate); + KUNIT_ASSERT_GT(test, rounded_rate, 0); + KUNIT_EXPECT_EQ(test, rounded_rate, parent_rate); + + clk_put(clk); +} + +/* + * Test that if the we have a mux that cannot change parent and we call + * clk_set_rate() on it with a rate that should cause it to change + * parent, it won't. + */ +static void clk_mux_no_reparent_set_rate(struct kunit *test) +{ + struct clk_multiple_parent_ctx *ctx = test->priv; + struct clk_hw *hw = &ctx->hw; + struct clk *clk = clk_hw_get_clk(hw, NULL); + struct clk *other_parent, *parent; + unsigned long other_parent_rate; + unsigned long parent_rate; + unsigned long rate; + int ret; + + parent = clk_get_parent(clk); + KUNIT_ASSERT_PTR_NE(test, parent, NULL); + + parent_rate = clk_get_rate(parent); + KUNIT_ASSERT_GT(test, parent_rate, 0); + + other_parent = clk_hw_get_clk(&ctx->parents_ctx[1].hw, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, other_parent); + KUNIT_ASSERT_FALSE(test, clk_is_match(parent, other_parent)); + + other_parent_rate = clk_get_rate(other_parent); + KUNIT_ASSERT_GT(test, other_parent_rate, 0); + clk_put(other_parent); + + ret = clk_set_rate(clk, other_parent_rate); + KUNIT_ASSERT_EQ(test, ret, 0); + + rate = clk_get_rate(clk); + KUNIT_ASSERT_GT(test, rate, 0); + KUNIT_EXPECT_EQ(test, rate, parent_rate); + + clk_put(clk); +} + +static struct kunit_case clk_mux_no_reparent_test_cases[] = { + KUNIT_CASE(clk_mux_no_reparent_round_rate), + KUNIT_CASE(clk_mux_no_reparent_set_rate), + {} +}; + +/* + * Test suite for a clock mux that isn't allowed to change parent, using + * the clk_hw_determine_rate_no_reparent() helper. + * + * These tests exercise that helper, and the proper selection of + * rates and parents. + */ +static struct kunit_suite clk_mux_no_reparent_test_suite = { + .name = "clk-mux-no-reparent", + .init = clk_mux_no_reparent_test_init, + .exit = clk_mux_no_reparent_test_exit, + .test_cases = clk_mux_no_reparent_test_cases, +}; + kunit_test_suites( &clk_leaf_mux_set_rate_parent_test_suite, &clk_test_suite, &clk_multiple_parents_mux_test_suite, + &clk_mux_no_reparent_test_suite, &clk_mux_notifier_test_suite, &clk_orphan_transparent_multiple_parent_mux_test_suite, &clk_orphan_transparent_single_parent_test_suite, diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 28ff6f1a6ada..f8f220fb5dab 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -1333,6 +1333,8 @@ int __clk_mux_determine_rate_closest(struct clk_hw *hw, int clk_mux_determine_rate_flags(struct clk_hw *hw, struct clk_rate_request *req, unsigned long flags); +int clk_hw_determine_rate_no_reparent(struct clk_hw *hw, + struct clk_rate_request *req); void clk_hw_reparent(struct clk_hw *hw, struct clk_hw *new_parent); void clk_hw_get_rate_range(struct clk_hw *hw, unsigned long *min_rate, unsigned long *max_rate); -- cgit v1.2.3-58-ga151 From e2533dad2f683976166d365aaeec65af7841a2de Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:07 +0200 Subject: clk: lan966x: Remove unused round_rate hook The lan966x driver registers a gck clock with both a determine_rate and a round_rate implementation. Both are equivalent, and are only called by clk_core_determine_round_nolock() which favors determine_rate. Thus, lan966x_gck_round_rate() is never called, so we can just remove it. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-5-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-lan966x.c | 17 ----------------- 1 file changed, 17 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-lan966x.c b/drivers/clk/clk-lan966x.c index 460e7216bfa1..870fd7df50c1 100644 --- a/drivers/clk/clk-lan966x.c +++ b/drivers/clk/clk-lan966x.c @@ -103,22 +103,6 @@ static int lan966x_gck_set_rate(struct clk_hw *hw, return 0; } -static long lan966x_gck_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) -{ - unsigned int div; - - if (rate == 0 || *parent_rate == 0) - return -EINVAL; - - if (rate >= *parent_rate) - return *parent_rate; - - div = DIV_ROUND_CLOSEST(*parent_rate, rate); - - return *parent_rate / div; -} - static unsigned long lan966x_gck_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { @@ -177,7 +161,6 @@ static const struct clk_ops lan966x_gck_ops = { .enable = lan966x_gck_enable, .disable = lan966x_gck_disable, .set_rate = lan966x_gck_set_rate, - .round_rate = lan966x_gck_round_rate, .recalc_rate = lan966x_gck_recalc_rate, .determine_rate = lan966x_gck_determine_rate, .set_parent = lan966x_gck_set_parent, -- cgit v1.2.3-58-ga151 From 9e3943afb2f671b0abc0aa1b381001e5e45fe976 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:08 +0200 Subject: clk: nodrv: Add a determine_rate hook The nodrv clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. Even though it's a mock clock and the missing function is harmless, we'll start to require a determine_rate implementation when set_parent is set, so let's fill it. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-6-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index dcc5378f8920..ad4488dedd01 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -4332,11 +4332,18 @@ static int clk_nodrv_set_parent(struct clk_hw *hw, u8 index) return -ENXIO; } +static int clk_nodrv_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) +{ + return -ENXIO; +} + static const struct clk_ops clk_nodrv_ops = { .enable = clk_nodrv_prepare_enable, .disable = clk_nodrv_disable_unprepare, .prepare = clk_nodrv_prepare_enable, .unprepare = clk_nodrv_disable_unprepare, + .determine_rate = clk_nodrv_determine_rate, .set_rate = clk_nodrv_set_rate, .set_parent = clk_nodrv_set_parent, }; -- cgit v1.2.3-58-ga151 From aebddfe2dfaf1100cfdeb56783384868786bca05 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:09 +0200 Subject: clk: test: Add a determine_rate hook The single parent clock in our kunit tests implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is not entirely unexpected, since its whole purpose it to have a single parent. When determine_rate is missing, and since CLK_SET_RATE_PARENT is set for all its instances, the default behaviour of the framework will be to forward it to the current parent. This is totally fine as far as the tests are concerned, but we'll start to mandate a determine_rate implementation when set_parent is set, so let's fill it with __clk_mux_determine_rate() which will have the same behavior. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-7-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk_test.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk_test.c b/drivers/clk/clk_test.c index b3ed3b0e4c31..a154ec9d0111 100644 --- a/drivers/clk/clk_test.c +++ b/drivers/clk/clk_test.c @@ -104,6 +104,23 @@ static const struct clk_ops clk_dummy_minimize_rate_ops = { }; static const struct clk_ops clk_dummy_single_parent_ops = { + /* + * FIXME: Even though we should probably be able to use + * __clk_mux_determine_rate() here, if we use it and call + * clk_round_rate() or clk_set_rate() with a rate lower than + * what all the parents can provide, it will return -EINVAL. + * + * This is due to the fact that it has the undocumented + * behaviour to always pick up the closest rate higher than the + * requested rate. If we get something lower, it thus considers + * that it's not acceptable and will return an error. + * + * It's somewhat inconsistent and creates a weird threshold + * between rates above the parent rate which would be rounded to + * what the parent can provide, but rates below will simply + * return an error. + */ + .determine_rate = __clk_mux_determine_rate_closest, .set_parent = clk_dummy_single_set_parent, .get_parent = clk_dummy_single_get_parent, }; -- cgit v1.2.3-58-ga151 From 3876e2d77e9abdb18b14cf881b650e074f448963 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:10 +0200 Subject: clk: actions: composite: Add a determine_rate hook for pass clk MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The Actions "Pass" clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Cc: "Andreas Färber" Cc: Manivannan Sadhasivam Cc: linux-actions@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-8-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/actions/owl-composite.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/actions/owl-composite.c b/drivers/clk/actions/owl-composite.c index 101706e0c66f..e7784f9e5bf6 100644 --- a/drivers/clk/actions/owl-composite.c +++ b/drivers/clk/actions/owl-composite.c @@ -189,6 +189,7 @@ const struct clk_ops owl_comp_fix_fact_ops = { const struct clk_ops owl_comp_pass_ops = { /* mux_ops */ + .determine_rate = clk_hw_determine_rate_no_reparent, .get_parent = owl_comp_get_parent, .set_parent = owl_comp_set_parent, -- cgit v1.2.3-58-ga151 From 63ec565301b582275374607945e70a2ae9060a79 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:11 +0200 Subject: clk: at91: main: Add a determine_rate hook The SAM9x5 main clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Cc: Alexandre Belloni Cc: Claudiu Beznea Cc: Nicolas Ferre Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-9-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/at91/clk-main.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/at91/clk-main.c b/drivers/clk/at91/clk-main.c index 8601b27c1ae0..4966e0f9e92c 100644 --- a/drivers/clk/at91/clk-main.c +++ b/drivers/clk/at91/clk-main.c @@ -533,6 +533,7 @@ static const struct clk_ops sam9x5_main_ops = { .prepare = clk_sam9x5_main_prepare, .is_prepared = clk_sam9x5_main_is_prepared, .recalc_rate = clk_sam9x5_main_recalc_rate, + .determine_rate = clk_hw_determine_rate_no_reparent, .set_parent = clk_sam9x5_main_set_parent, .get_parent = clk_sam9x5_main_get_parent, .save_context = clk_sam9x5_main_save_context, -- cgit v1.2.3-58-ga151 From d2e88be3085a0fda143e9c944cc4555889ccd57e Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:12 +0200 Subject: clk: at91: sckc: Add a determine_rate hook The SAM9x5 slow clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Cc: Alexandre Belloni Cc: Claudiu Beznea Cc: Nicolas Ferre Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-10-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/at91/sckc.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c index fdc9b669f8a7..a2d86c377827 100644 --- a/drivers/clk/at91/sckc.c +++ b/drivers/clk/at91/sckc.c @@ -310,6 +310,7 @@ static u8 clk_sam9x5_slow_get_parent(struct clk_hw *hw) } static const struct clk_ops sam9x5_slow_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .set_parent = clk_sam9x5_slow_set_parent, .get_parent = clk_sam9x5_slow_get_parent, }; -- cgit v1.2.3-58-ga151 From 321437f33e6409e0303a4e894bca6fddf66f3a90 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:13 +0200 Subject: clk: berlin: div: Add a determine_rate hook The Berlin2 divider clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-11-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/berlin/berlin2-div.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/berlin/berlin2-div.c b/drivers/clk/berlin/berlin2-div.c index eb14a5bc0507..0a248bfe2193 100644 --- a/drivers/clk/berlin/berlin2-div.c +++ b/drivers/clk/berlin/berlin2-div.c @@ -210,6 +210,7 @@ static unsigned long berlin2_div_recalc_rate(struct clk_hw *hw, } static const struct clk_ops berlin2_div_rate_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .recalc_rate = berlin2_div_recalc_rate, }; -- cgit v1.2.3-58-ga151 From 43e8f067db1373dbc0c2a6079cb18f9fc29d35ec Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:14 +0200 Subject: clk: cdce706: Add a determine_rate hook The cdce706 "clkin" clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Cc: Max Filippov Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-12-971d5077e7d2@cerno.tech | Reported-by: kernel test robot : Signed-off-by: Stephen Boyd --- drivers/clk/clk-cdce706.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-cdce706.c b/drivers/clk/clk-cdce706.c index d8bee8180a6b..139aa0954cc1 100644 --- a/drivers/clk/clk-cdce706.c +++ b/drivers/clk/clk-cdce706.c @@ -155,6 +155,7 @@ static u8 cdce706_clkin_get_parent(struct clk_hw *hw) } static const struct clk_ops cdce706_clkin_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .set_parent = cdce706_clkin_set_parent, .get_parent = cdce706_clkin_get_parent, }; -- cgit v1.2.3-58-ga151 From 8e3f15601cf3b54f5bed8bf6c881adc48afeefcd Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:15 +0200 Subject: clk: k210: pll: Add a determine_rate hook The K210 PLL clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-13-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-k210.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-k210.c b/drivers/clk/clk-k210.c index 4eed667eddaf..21d942065a3e 100644 --- a/drivers/clk/clk-k210.c +++ b/drivers/clk/clk-k210.c @@ -537,6 +537,7 @@ static const struct clk_ops k210_pll2_ops = { .disable = k210_pll_disable, .is_enabled = k210_pll_is_enabled, .recalc_rate = k210_pll_get_rate, + .determine_rate = clk_hw_determine_rate_no_reparent, .set_parent = k210_pll2_set_parent, .get_parent = k210_pll2_get_parent, }; -- cgit v1.2.3-58-ga151 From d0f775d0367ac5d96ed4fb32fae492994fee52d4 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:16 +0200 Subject: clk: k210: aclk: Add a determine_rate hook The K210 ACLK clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-14-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-k210.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-k210.c b/drivers/clk/clk-k210.c index 21d942065a3e..b5b8fb29a347 100644 --- a/drivers/clk/clk-k210.c +++ b/drivers/clk/clk-k210.c @@ -636,6 +636,7 @@ static unsigned long k210_aclk_get_rate(struct clk_hw *hw, } static const struct clk_ops k210_aclk_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .set_parent = k210_aclk_set_parent, .get_parent = k210_aclk_get_parent, .recalc_rate = k210_aclk_get_rate, -- cgit v1.2.3-58-ga151 From f6a01564fc8090ba6f8db2082427055cb3496124 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:17 +0200 Subject: clk: k210: mux: Add a determine_rate hook The K210 mux clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-15-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-k210.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-k210.c b/drivers/clk/clk-k210.c index b5b8fb29a347..870adac5cdee 100644 --- a/drivers/clk/clk-k210.c +++ b/drivers/clk/clk-k210.c @@ -776,6 +776,7 @@ static unsigned long k210_clk_get_rate(struct clk_hw *hw, static const struct clk_ops k210_clk_mux_ops = { .enable = k210_clk_enable, .disable = k210_clk_disable, + .determine_rate = clk_hw_determine_rate_no_reparent, .set_parent = k210_clk_set_parent, .get_parent = k210_clk_get_parent, .recalc_rate = k210_clk_get_rate, -- cgit v1.2.3-58-ga151 From 38bdfb21edc183ef973d6d2bcdb5aef20b83db61 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:18 +0200 Subject: clk: lmk04832: clkout: Add a determine_rate hook The LKM04832 "CLKOUT" clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the flag CLK_SET_RATE_NO_REPARENT, together with setting our determine_rate hook to __clk_mux_determine_rate(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Since the CLK_SET_RATE_NO_REPARENT flag was already set though, it seems unlikely. Reviewed-by: Liam Beguin Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-16-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-lmk04832.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-lmk04832.c b/drivers/clk/clk-lmk04832.c index afdfee3b365f..e22ac93e0c2f 100644 --- a/drivers/clk/clk-lmk04832.c +++ b/drivers/clk/clk-lmk04832.c @@ -1279,6 +1279,7 @@ static const struct clk_ops lmk04832_clkout_ops = { .is_enabled = lmk04832_clkout_is_enabled, .prepare = lmk04832_clkout_prepare, .unprepare = lmk04832_clkout_unprepare, + .determine_rate = __clk_mux_determine_rate, .set_parent = lmk04832_clkout_set_parent, .get_parent = lmk04832_clkout_get_parent, }; -- cgit v1.2.3-58-ga151 From 4e382f196a4e49944b37ad322e0456c163177b2b Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:19 +0200 Subject: clk: lochnagar: Add a determine_rate hook The lochnagar clocks implement a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Since there's no upstream device tree using that driver, it's a bit hard to tell if it uses the assigned-clock properties. The binding and its example uses them though, so it's likely that the author intent was to force the parent through the device tree and prevent any reparenting but through an explicit call to clk_set_parent(). This case is equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. Cc: Charles Keepax Cc: Richard Fitzgerald Cc: patches@opensource.cirrus.com Tested-by: Charles Keepax Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-17-971d5077e7d2@cerno.tech | Reported-by: kernel test robot : | Reported-by: kernel test robot : Signed-off-by: Stephen Boyd --- drivers/clk/clk-lochnagar.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-lochnagar.c b/drivers/clk/clk-lochnagar.c index 80944bf482e9..db468a62c8d7 100644 --- a/drivers/clk/clk-lochnagar.c +++ b/drivers/clk/clk-lochnagar.c @@ -209,6 +209,7 @@ static u8 lochnagar_clk_get_parent(struct clk_hw *hw) static const struct clk_ops lochnagar_clk_ops = { .prepare = lochnagar_clk_prepare, .unprepare = lochnagar_clk_unprepare, + .determine_rate = clk_hw_determine_rate_no_reparent, .set_parent = lochnagar_clk_set_parent, .get_parent = lochnagar_clk_get_parent, }; -- cgit v1.2.3-58-ga151 From 4cbe64280cb0501ad357c489ca5e7dfaef9a122d Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:20 +0200 Subject: clk: qoriq: Add a determine_rate hook The Qoriq mux clocks implement a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-18-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-qoriq.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-qoriq.c b/drivers/clk/clk-qoriq.c index 5eddb9f0d6bd..e3386fd98c5e 100644 --- a/drivers/clk/clk-qoriq.c +++ b/drivers/clk/clk-qoriq.c @@ -878,6 +878,7 @@ static u8 mux_get_parent(struct clk_hw *hw) } static const struct clk_ops cmux_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .get_parent = mux_get_parent, .set_parent = mux_set_parent, }; -- cgit v1.2.3-58-ga151 From 67110f5af1f838e2a6eb8a51e250913123e9f66f Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:21 +0200 Subject: clk: si5341: Add a determine_rate hook The SI5341 clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-19-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-si5341.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-si5341.c b/drivers/clk/clk-si5341.c index 0e528d7ba656..4b65def64109 100644 --- a/drivers/clk/clk-si5341.c +++ b/drivers/clk/clk-si5341.c @@ -551,6 +551,7 @@ static int si5341_clk_set_parent(struct clk_hw *hw, u8 index) } static const struct clk_ops si5341_clk_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .set_parent = si5341_clk_set_parent, .get_parent = si5341_clk_get_parent, .recalc_rate = si5341_clk_recalc_rate, -- cgit v1.2.3-58-ga151 From 5ce89dcc68071899070ba0c381b3eec2d09b2d5d Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:22 +0200 Subject: clk: stm32f4: mux: Add a determine_rate hook The STM32F4 mux clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. However, the upstream device trees seem to use assigned-clock-parents on that clock to force the parent at boot time, so it's likely that the author intent was to force the parent through the device tree and prevent any reparenting but through an explicit call to clk_set_parent(). This case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. Cc: Alexandre Torgue Cc: Maxime Coquelin Cc: linux-arm-kernel@lists.infradead.org Cc: linux-stm32@st-md-mailman.stormreply.com Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-20-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-stm32f4.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-stm32f4.c b/drivers/clk/clk-stm32f4.c index 473dfe632cc5..07c13ebe327d 100644 --- a/drivers/clk/clk-stm32f4.c +++ b/drivers/clk/clk-stm32f4.c @@ -1045,6 +1045,7 @@ static int cclk_mux_set_parent(struct clk_hw *hw, u8 index) } static const struct clk_ops cclk_mux_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .get_parent = cclk_mux_get_parent, .set_parent = cclk_mux_set_parent, }; -- cgit v1.2.3-58-ga151 From dcba8da50b05f36437ff5ee8e37a32bdecb4de8a Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:23 +0200 Subject: clk: vc5: mux: Add a determine_rate hook The Versaclock5 mux clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Cc: Luca Ceresoli Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-21-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-versaclock5.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-versaclock5.c b/drivers/clk/clk-versaclock5.c index fa71a57875ce..97ffd4ef0e5f 100644 --- a/drivers/clk/clk-versaclock5.c +++ b/drivers/clk/clk-versaclock5.c @@ -281,6 +281,7 @@ static int vc5_mux_set_parent(struct clk_hw *hw, u8 index) } static const struct clk_ops vc5_mux_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .set_parent = vc5_mux_set_parent, .get_parent = vc5_mux_get_parent, }; -- cgit v1.2.3-58-ga151 From 538e864f8edde646ab6c454c382b2ba4ee2870e2 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:24 +0200 Subject: clk: vc5: clkout: Add a determine_rate hook The Versaclock5 "clkout" clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Cc: Luca Ceresoli Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-22-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-versaclock5.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-versaclock5.c b/drivers/clk/clk-versaclock5.c index 97ffd4ef0e5f..3d6f4b01e6c0 100644 --- a/drivers/clk/clk-versaclock5.c +++ b/drivers/clk/clk-versaclock5.c @@ -726,6 +726,7 @@ static int vc5_clk_out_set_parent(struct clk_hw *hw, u8 index) static const struct clk_ops vc5_clk_out_ops = { .prepare = vc5_clk_out_prepare, .unprepare = vc5_clk_out_unprepare, + .determine_rate = clk_hw_determine_rate_no_reparent, .set_parent = vc5_clk_out_set_parent, .get_parent = vc5_clk_out_get_parent, }; -- cgit v1.2.3-58-ga151 From fa2a1931e48a87ef1376df95ee84a13fcf2acc59 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:25 +0200 Subject: clk: wm831x: clkout: Add a determine_rate hook The WM381x "clkout" clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Cc: patches@opensource.cirrus.com Acked-by: Charles Keepax Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-23-971d5077e7d2@cerno.tech | Reported-by: kernel test robot : Signed-off-by: Stephen Boyd --- drivers/clk/clk-wm831x.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-wm831x.c b/drivers/clk/clk-wm831x.c index ae6dd38ec053..34e9d4d541e2 100644 --- a/drivers/clk/clk-wm831x.c +++ b/drivers/clk/clk-wm831x.c @@ -329,6 +329,7 @@ static const struct clk_ops wm831x_clkout_ops = { .is_prepared = wm831x_clkout_is_prepared, .prepare = wm831x_clkout_prepare, .unprepare = wm831x_clkout_unprepare, + .determine_rate = clk_hw_determine_rate_no_reparent, .get_parent = wm831x_clkout_get_parent, .set_parent = wm831x_clkout_set_parent, }; -- cgit v1.2.3-58-ga151 From de9271f24efc30db84ff514387bba897274291b2 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:26 +0200 Subject: clk: davinci: da8xx-cfgchip: Add a determine_rate hook The Davinci DA8xxx cfgchip mux clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. However, the upstream device trees seem to use assigned-clock-parents on that clock to force the parent at boot time, so it's likely that the author intent was to force the parent through the device tree and prevent any reparenting but through an explicit call to clk_set_parent(). This case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. Cc: David Lechner Cc: Sekhar Nori Acked-by: David Lechner Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-24-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/davinci/da8xx-cfgchip.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/davinci/da8xx-cfgchip.c b/drivers/clk/davinci/da8xx-cfgchip.c index 4103d605e804..11fcf6f63336 100644 --- a/drivers/clk/davinci/da8xx-cfgchip.c +++ b/drivers/clk/davinci/da8xx-cfgchip.c @@ -229,6 +229,7 @@ static u8 da8xx_cfgchip_mux_clk_get_parent(struct clk_hw *hw) } static const struct clk_ops da8xx_cfgchip_mux_clk_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .set_parent = da8xx_cfgchip_mux_clk_set_parent, .get_parent = da8xx_cfgchip_mux_clk_get_parent, }; -- cgit v1.2.3-58-ga151 From 4d8aa2a3aa485c056ad488608c08a55201482127 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:27 +0200 Subject: clk: davinci: da8xx-cfgchip: Add a determine_rate hook The Davinci DA8xxx cfgchip "clk48" clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Cc: David Lechner Cc: Sekhar Nori Acked-by: David Lechner Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-25-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/davinci/da8xx-cfgchip.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/davinci/da8xx-cfgchip.c b/drivers/clk/davinci/da8xx-cfgchip.c index 11fcf6f63336..1bbcc8e43bc5 100644 --- a/drivers/clk/davinci/da8xx-cfgchip.c +++ b/drivers/clk/davinci/da8xx-cfgchip.c @@ -565,6 +565,7 @@ static u8 da8xx_usb1_clk48_get_parent(struct clk_hw *hw) } static const struct clk_ops da8xx_usb1_clk48_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .set_parent = da8xx_usb1_clk48_set_parent, .get_parent = da8xx_usb1_clk48_get_parent, }; -- cgit v1.2.3-58-ga151 From 79ef35a9443588e782a8da9bd96a2af47c10a226 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:28 +0200 Subject: clk: imx: busy: Add a determine_rate hook The iMX busy clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Cc: Abel Vesa Cc: Fabio Estevam Cc: Peng Fan Cc: Sascha Hauer Cc: Shawn Guo Cc: linux-arm-kernel@lists.infradead.org Cc: NXP Linux Team Cc: Pengutronix Kernel Team Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-26-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/imx/clk-busy.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/imx/clk-busy.c b/drivers/clk/imx/clk-busy.c index 6f17311647f3..f163df952ccc 100644 --- a/drivers/clk/imx/clk-busy.c +++ b/drivers/clk/imx/clk-busy.c @@ -148,6 +148,7 @@ static int clk_busy_mux_set_parent(struct clk_hw *hw, u8 index) } static const struct clk_ops clk_busy_mux_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .get_parent = clk_busy_mux_get_parent, .set_parent = clk_busy_mux_set_parent, }; -- cgit v1.2.3-58-ga151 From b2252ca68c173846191b2ad91631214e9e27ee4a Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:29 +0200 Subject: clk: imx: fixup-mux: Add a determine_rate hook The iMX fixup mux clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. However, the upstream device trees seem to use assigned-clock-parents on that clock to force the parent at boot time, so it's likely that the author intent was to force the parent through the device tree and prevent any reparenting but through an explicit call to clk_set_parent(). This case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. Cc: Abel Vesa Cc: Fabio Estevam Cc: Peng Fan Cc: Sascha Hauer Cc: Shawn Guo Cc: linux-arm-kernel@lists.infradead.org Cc: NXP Linux Team Cc: Pengutronix Kernel Team Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-27-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/imx/clk-fixup-mux.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/imx/clk-fixup-mux.c b/drivers/clk/imx/clk-fixup-mux.c index c82401570c84..b48701864ef0 100644 --- a/drivers/clk/imx/clk-fixup-mux.c +++ b/drivers/clk/imx/clk-fixup-mux.c @@ -60,6 +60,7 @@ static int clk_fixup_mux_set_parent(struct clk_hw *hw, u8 index) } static const struct clk_ops clk_fixup_mux_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .get_parent = clk_fixup_mux_get_parent, .set_parent = clk_fixup_mux_set_parent, }; -- cgit v1.2.3-58-ga151 From 1c2c20dbb5d79bfe6bb30ec5b2b04ef724ba3059 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:30 +0200 Subject: clk: imx: scu: Add a determine_rate hook The iMX SCU mux clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Cc: Abel Vesa Cc: Fabio Estevam Cc: Peng Fan Cc: Sascha Hauer Cc: Shawn Guo Cc: linux-arm-kernel@lists.infradead.org Cc: NXP Linux Team Cc: Pengutronix Kernel Team Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-28-971d5077e7d2@cerno.tech | Reported-by: kernel test robot : Signed-off-by: Stephen Boyd --- drivers/clk/imx/clk-scu.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c index 1e6870f3671f..417f893f8895 100644 --- a/drivers/clk/imx/clk-scu.c +++ b/drivers/clk/imx/clk-scu.c @@ -785,6 +785,7 @@ static int clk_gpr_mux_scu_set_parent(struct clk_hw *hw, u8 index) } static const struct clk_ops clk_gpr_mux_scu_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .get_parent = clk_gpr_mux_scu_get_parent, .set_parent = clk_gpr_mux_scu_set_parent, }; -- cgit v1.2.3-58-ga151 From 90fe6ebf729000ba9d5bdfc53597bd7d99d34e43 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:31 +0200 Subject: clk: mediatek: cpumux: Add a determine_rate hook The Mediatek cpumux clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Cc: AngeloGioacchino Del Regno Cc: Matthias Brugger Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mediatek@lists.infradead.org Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-29-971d5077e7d2@cerno.tech Reviewed-by: Chen-Yu Tsai Signed-off-by: Stephen Boyd --- drivers/clk/mediatek/clk-cpumux.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/mediatek/clk-cpumux.c b/drivers/clk/mediatek/clk-cpumux.c index da05f06192c0..a03826db4dcb 100644 --- a/drivers/clk/mediatek/clk-cpumux.c +++ b/drivers/clk/mediatek/clk-cpumux.c @@ -53,6 +53,7 @@ static int clk_cpumux_set_parent(struct clk_hw *hw, u8 index) } static const struct clk_ops clk_cpumux_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .get_parent = clk_cpumux_get_parent, .set_parent = clk_cpumux_set_parent, }; -- cgit v1.2.3-58-ga151 From e9b6ea4eb6989bd32b55f97014b0da835eaf8e38 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:32 +0200 Subject: clk: pxa: Add a determine_rate hook The PXA "CKEN" clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-30-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/pxa/clk-pxa.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/pxa/clk-pxa.c b/drivers/clk/pxa/clk-pxa.c index 374098ebbf2b..ebee2afd05de 100644 --- a/drivers/clk/pxa/clk-pxa.c +++ b/drivers/clk/pxa/clk-pxa.c @@ -82,6 +82,7 @@ static u8 cken_get_parent(struct clk_hw *hw) } static const struct clk_ops cken_mux_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .get_parent = cken_get_parent, .set_parent = dummy_clk_set_parent, }; -- cgit v1.2.3-58-ga151 From 03b56aa9bfb2bf2b1eb8cb95cde4cb2b52a1e65b Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:33 +0200 Subject: clk: renesas: r9a06g032: Add a determine_rate hook The Renesas r9a06g032 bitselect clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Cc: Geert Uytterhoeven Cc: linux-renesas-soc@vger.kernel.org Reviewed-by: Geert Uytterhoeven Reviewed-by: Miquel Raynal Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-31-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/renesas/r9a06g032-clocks.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/renesas/r9a06g032-clocks.c b/drivers/clk/renesas/r9a06g032-clocks.c index 40828616f723..55db63c7041a 100644 --- a/drivers/clk/renesas/r9a06g032-clocks.c +++ b/drivers/clk/renesas/r9a06g032-clocks.c @@ -1121,6 +1121,7 @@ static int r9a06g032_clk_mux_set_parent(struct clk_hw *hw, u8 index) } static const struct clk_ops clk_bitselect_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .get_parent = r9a06g032_clk_mux_get_parent, .set_parent = r9a06g032_clk_mux_set_parent, }; -- cgit v1.2.3-58-ga151 From 9607beb917df80ce70e8d46b733eae25f7ba582a Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:34 +0200 Subject: clk: socfpga: gate: Add a determine_rate hook The SoCFGPA gate clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Cc: Dinh Nguyen Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-32-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/socfpga/clk-gate.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/socfpga/clk-gate.c b/drivers/clk/socfpga/clk-gate.c index 32ccda960f28..8dd601bd8538 100644 --- a/drivers/clk/socfpga/clk-gate.c +++ b/drivers/clk/socfpga/clk-gate.c @@ -110,6 +110,7 @@ static unsigned long socfpga_clk_recalc_rate(struct clk_hw *hwclk, static struct clk_ops gateclk_ops = { .recalc_rate = socfpga_clk_recalc_rate, + .determine_rate = clk_hw_determine_rate_no_reparent, .get_parent = socfpga_clk_get_parent, .set_parent = socfpga_clk_set_parent, }; -- cgit v1.2.3-58-ga151 From d052f0671f769bc542f326fa29edc131a7afba28 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:35 +0200 Subject: clk: stm32: core: Add a determine_rate hook The STM32 mux clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the flag CLK_SET_RATE_NO_REPARENT, together with setting our determine_rate hook to __clk_mux_determine_rate(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Since the CLK_SET_RATE_NO_REPARENT flag was already set though, it seems unlikely. Cc: Alexandre Torgue Cc: Maxime Coquelin Cc: linux-arm-kernel@lists.infradead.org Cc: linux-stm32@st-md-mailman.stormreply.com Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-33-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/stm32/clk-stm32-core.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/stm32/clk-stm32-core.c b/drivers/clk/stm32/clk-stm32-core.c index 45a279e73779..3247539683c9 100644 --- a/drivers/clk/stm32/clk-stm32-core.c +++ b/drivers/clk/stm32/clk-stm32-core.c @@ -275,6 +275,7 @@ static int clk_stm32_mux_set_parent(struct clk_hw *hw, u8 index) } const struct clk_ops clk_stm32_mux_ops = { + .determine_rate = __clk_mux_determine_rate, .get_parent = clk_stm32_mux_get_parent, .set_parent = clk_stm32_mux_set_parent, }; -- cgit v1.2.3-58-ga151 From 4552a852f207957ae71831042d56749cd9ac485d Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:36 +0200 Subject: clk: tegra: bpmp: Add a determine_rate hook The Tegra BPMP mux clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. However, the upstream device trees seem to use assigned-clock-parents on that clock to force the parent at boot time, so it's likely that the author intent was to force the parent through the device tree and prevent any reparenting but through an explicit call to clk_set_parent(). This case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. Cc: Jonathan Hunter Cc: Peter De Schrijver Cc: Prashant Gaikwad Cc: Thierry Reding Cc: linux-tegra@vger.kernel.org Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-34-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/tegra/clk-bpmp.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/tegra/clk-bpmp.c b/drivers/clk/tegra/clk-bpmp.c index 0ecdffaa6b16..a9f3fb448de6 100644 --- a/drivers/clk/tegra/clk-bpmp.c +++ b/drivers/clk/tegra/clk-bpmp.c @@ -286,6 +286,7 @@ static const struct clk_ops tegra_bpmp_clk_mux_ops = { .unprepare = tegra_bpmp_clk_unprepare, .is_prepared = tegra_bpmp_clk_is_prepared, .recalc_rate = tegra_bpmp_clk_recalc_rate, + .determine_rate = clk_hw_determine_rate_no_reparent, .set_parent = tegra_bpmp_clk_set_parent, .get_parent = tegra_bpmp_clk_get_parent, }; -- cgit v1.2.3-58-ga151 From 78b435c8db6c84f512ddcb247f6f206ce96ae82b Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:37 +0200 Subject: clk: tegra: super: Add a determine_rate hook The Tegra super mux clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. However, the upstream device trees seem to use assigned-clock-parents on that clock to force the parent at boot time, so it's likely that the author intent was to force the parent through the device tree and prevent any reparenting but through an explicit call to clk_set_parent(). This case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. Cc: Jonathan Hunter Cc: Peter De Schrijver Cc: Prashant Gaikwad Cc: Thierry Reding Cc: linux-tegra@vger.kernel.org Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-35-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/tegra/clk-super.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/tegra/clk-super.c b/drivers/clk/tegra/clk-super.c index a98a420398fa..3f3a7a203c5f 100644 --- a/drivers/clk/tegra/clk-super.c +++ b/drivers/clk/tegra/clk-super.c @@ -136,6 +136,7 @@ static void clk_super_mux_restore_context(struct clk_hw *hw) } static const struct clk_ops tegra_clk_super_mux_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .get_parent = clk_super_get_parent, .set_parent = clk_super_set_parent, .restore_context = clk_super_mux_restore_context, -- cgit v1.2.3-58-ga151 From b11fcfa884da5b884584c6b85d697548c81511b8 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:38 +0200 Subject: clk: tegra: periph: Add a determine_rate hook The Tegra periph nodiv clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. However, the upstream device trees seem to use assigned-clock-parents on that clock to force the parent at boot time, so it's likely that the author intent was to force the parent through the device tree and prevent any reparenting but through an explicit call to clk_set_parent(). This case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. Cc: Jonathan Hunter Cc: Peter De Schrijver Cc: Prashant Gaikwad Cc: Thierry Reding Cc: linux-tegra@vger.kernel.org Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-36-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/tegra/clk-periph.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/tegra/clk-periph.c b/drivers/clk/tegra/clk-periph.c index 79ca3aa072b7..ea443366e972 100644 --- a/drivers/clk/tegra/clk-periph.c +++ b/drivers/clk/tegra/clk-periph.c @@ -140,6 +140,7 @@ const struct clk_ops tegra_clk_periph_ops = { }; static const struct clk_ops tegra_clk_periph_nodiv_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .get_parent = clk_periph_get_parent, .set_parent = clk_periph_set_parent, .is_enabled = clk_periph_is_enabled, -- cgit v1.2.3-58-ga151 From 97eb8f8a95fac869f3ffc75cda0308ab07780f4f Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:39 +0200 Subject: clk: ux500: prcmu: Add a determine_rate hook The UX500 PRCMU "clkout" clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The PRCMU binding also allows to specify the default clock parent through a device tree cell. This will be enforced at prepare time by the driver. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. The result is that the driver relies on prepare to set the default parent, and thus the set_parent hook is effectively unused by design. We can make that decision explicit by setting the determine_rate implementation to clk_hw_determine_rate_no_reparent() that will keep the same behaviour. Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. Cc: Ulf Hansson Cc: linux-arm-kernel@lists.infradead.org Acked-by: Linus Walleij Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-37-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/ux500/clk-prcmu.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/ux500/clk-prcmu.c b/drivers/clk/ux500/clk-prcmu.c index 4deb37f19a7c..5cbf24c94606 100644 --- a/drivers/clk/ux500/clk-prcmu.c +++ b/drivers/clk/ux500/clk-prcmu.c @@ -344,6 +344,7 @@ static const struct clk_ops clk_prcmu_clkout_ops = { .prepare = clk_prcmu_clkout_prepare, .unprepare = clk_prcmu_clkout_unprepare, .recalc_rate = clk_prcmu_clkout_recalc_rate, + .determine_rate = clk_hw_determine_rate_no_reparent, .get_parent = clk_prcmu_clkout_get_parent, .set_parent = clk_prcmu_clkout_set_parent, }; -- cgit v1.2.3-58-ga151 From b7f0dee221e641a1e9c1640a2bed184a74875e62 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:40 +0200 Subject: clk: ux500: sysctrl: Add a determine_rate hook The UX500 sysctrl "set_parent" clocks implement a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. Similarly, it doesn't look like the device tree using that clock driver uses any of the assigned-clock properties on that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The latter case would be equivalent to setting the determine_rate implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no determine_rate implementation is provided, clk_round_rate() (through clk_core_round_rate_nolock()) will call itself on the parent if CLK_SET_RATE_PARENT is set, and will not change the clock rate otherwise. And if it was an oversight, then we are at least explicit about our behavior now and it can be further refined down the line. Cc: Ulf Hansson Cc: linux-arm-kernel@lists.infradead.org Acked-by: Linus Walleij Reviewed-by: Ulf Hansson Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-38-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/ux500/clk-sysctrl.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/ux500/clk-sysctrl.c b/drivers/clk/ux500/clk-sysctrl.c index 702f2f8b43fa..ba3258c88d28 100644 --- a/drivers/clk/ux500/clk-sysctrl.c +++ b/drivers/clk/ux500/clk-sysctrl.c @@ -110,6 +110,7 @@ static const struct clk_ops clk_sysctrl_gate_fixed_rate_ops = { }; static const struct clk_ops clk_sysctrl_set_parent_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .set_parent = clk_sysctrl_set_parent, .get_parent = clk_sysctrl_get_parent, }; -- cgit v1.2.3-58-ga151 From d5a5a6e4d129f5b1167e8497155ada63b8c865b2 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:41 +0200 Subject: clk: versatile: sp810: Add a determine_rate hook The Versatile sp810 "timerclken" clock implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidates to trigger that parent change are either the assigned-clock-parents device tree property or a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. This mismatch is probably due to the fact that the driver introduction predates the determine_rate introduction, and it was never revised since then. The default, implicit, behaviour that has been in use so far has thus been to simply keep using the current parent in all cases. This is also the behaviour of the new clk_hw_determine_rate_no_reparent() helper, so we can simply use it to make our expectation explicit. Cc: Linus Walleij Cc: Pawel Moll Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-39-971d5077e7d2@cerno.tech Acked-by: Linus Walleij Acked-by: Pawel Moll Signed-off-by: Stephen Boyd --- drivers/clk/versatile/clk-sp810.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/versatile/clk-sp810.c b/drivers/clk/versatile/clk-sp810.c index caf0cd2fb5b6..45adac1b4630 100644 --- a/drivers/clk/versatile/clk-sp810.c +++ b/drivers/clk/versatile/clk-sp810.c @@ -63,6 +63,7 @@ static int clk_sp810_timerclken_set_parent(struct clk_hw *hw, u8 index) } static const struct clk_ops clk_sp810_timerclken_ops = { + .determine_rate = clk_hw_determine_rate_no_reparent, .get_parent = clk_sp810_timerclken_get_parent, .set_parent = clk_sp810_timerclken_set_parent, }; -- cgit v1.2.3-58-ga151 From 4407740621ef0d70611a0cb2463240f97dd238cb Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:49 +0200 Subject: clk: actions: composite: div: Switch to determine_rate MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The Actions composite divider clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Cc: "Andreas Färber" Cc: Manivannan Sadhasivam Cc: linux-actions@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-47-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/actions/owl-composite.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/actions/owl-composite.c b/drivers/clk/actions/owl-composite.c index e7784f9e5bf6..2f1e282134b2 100644 --- a/drivers/clk/actions/owl-composite.c +++ b/drivers/clk/actions/owl-composite.c @@ -53,13 +53,19 @@ static int owl_comp_is_enabled(struct clk_hw *hw) return owl_gate_clk_is_enabled(common, &comp->gate_hw); } -static long owl_comp_div_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int owl_comp_div_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct owl_composite *comp = hw_to_owl_comp(hw); + long rate; - return owl_divider_helper_round_rate(&comp->common, &comp->rate.div_hw, - rate, parent_rate); + rate = owl_divider_helper_round_rate(&comp->common, &comp->rate.div_hw, + req->rate, &req->best_parent_rate); + if (rate < 0) + return rate; + + req->rate = rate; + return 0; } static unsigned long owl_comp_div_recalc_rate(struct clk_hw *hw, @@ -152,7 +158,7 @@ const struct clk_ops owl_comp_div_ops = { .is_enabled = owl_comp_is_enabled, /* div_ops */ - .round_rate = owl_comp_div_round_rate, + .determine_rate = owl_comp_div_determine_rate, .recalc_rate = owl_comp_div_recalc_rate, .set_rate = owl_comp_div_set_rate, }; -- cgit v1.2.3-58-ga151 From 939b61f67ec306981a85b94d17ba07a5996f5a14 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:50 +0200 Subject: clk: actions: composite: fact: Switch to determine_rate MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The Actions composite factor clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Cc: "Andreas Färber" Cc: Manivannan Sadhasivam Cc: linux-actions@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-48-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/actions/owl-composite.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/actions/owl-composite.c b/drivers/clk/actions/owl-composite.c index 2f1e282134b2..48f177f6ce9c 100644 --- a/drivers/clk/actions/owl-composite.c +++ b/drivers/clk/actions/owl-composite.c @@ -86,14 +86,20 @@ static int owl_comp_div_set_rate(struct clk_hw *hw, unsigned long rate, rate, parent_rate); } -static long owl_comp_fact_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int owl_comp_fact_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct owl_composite *comp = hw_to_owl_comp(hw); + long rate; - return owl_factor_helper_round_rate(&comp->common, - &comp->rate.factor_hw, - rate, parent_rate); + rate = owl_factor_helper_round_rate(&comp->common, + &comp->rate.factor_hw, + req->rate, &req->best_parent_rate); + if (rate < 0) + return rate; + + req->rate = rate; + return 0; } static unsigned long owl_comp_fact_recalc_rate(struct clk_hw *hw, @@ -175,7 +181,7 @@ const struct clk_ops owl_comp_fact_ops = { .is_enabled = owl_comp_is_enabled, /* fact_ops */ - .round_rate = owl_comp_fact_round_rate, + .determine_rate = owl_comp_fact_determine_rate, .recalc_rate = owl_comp_fact_recalc_rate, .set_rate = owl_comp_fact_set_rate, }; -- cgit v1.2.3-58-ga151 From 6a25bd4d1d00baaf32a0da76631db47adeea7b56 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:51 +0200 Subject: clk: at91: smd: Switch to determine_rate The Atmel SAM9x5 SMD clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Cc: Alexandre Belloni Cc: Claudiu Beznea Cc: Nicolas Ferre Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-49-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/at91/clk-smd.c | 29 +++++++++++++++++------------ 1 file changed, 17 insertions(+), 12 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/at91/clk-smd.c b/drivers/clk/at91/clk-smd.c index 160378438f1b..09c649c8598e 100644 --- a/drivers/clk/at91/clk-smd.c +++ b/drivers/clk/at91/clk-smd.c @@ -36,26 +36,31 @@ static unsigned long at91sam9x5_clk_smd_recalc_rate(struct clk_hw *hw, return parent_rate / (smddiv + 1); } -static long at91sam9x5_clk_smd_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int at91sam9x5_clk_smd_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { unsigned long div; unsigned long bestrate; unsigned long tmp; - if (rate >= *parent_rate) - return *parent_rate; + if (req->rate >= req->best_parent_rate) { + req->rate = req->best_parent_rate; + return 0; + } - div = *parent_rate / rate; - if (div > SMD_MAX_DIV) - return *parent_rate / (SMD_MAX_DIV + 1); + div = req->best_parent_rate / req->rate; + if (div > SMD_MAX_DIV) { + req->rate = req->best_parent_rate / (SMD_MAX_DIV + 1); + return 0; + } - bestrate = *parent_rate / div; - tmp = *parent_rate / (div + 1); - if (bestrate - rate > rate - tmp) + bestrate = req->best_parent_rate / div; + tmp = req->best_parent_rate / (div + 1); + if (bestrate - req->rate > req->rate - tmp) bestrate = tmp; - return bestrate; + req->rate = bestrate; + return 0; } static int at91sam9x5_clk_smd_set_parent(struct clk_hw *hw, u8 index) @@ -98,7 +103,7 @@ static int at91sam9x5_clk_smd_set_rate(struct clk_hw *hw, unsigned long rate, static const struct clk_ops at91sam9x5_smd_ops = { .recalc_rate = at91sam9x5_clk_smd_recalc_rate, - .round_rate = at91sam9x5_clk_smd_round_rate, + .determine_rate = at91sam9x5_clk_smd_determine_rate, .get_parent = at91sam9x5_clk_smd_get_parent, .set_parent = at91sam9x5_clk_smd_set_parent, .set_rate = at91sam9x5_clk_smd_set_rate, -- cgit v1.2.3-58-ga151 From 6222b494a961cf48b01e2e2b2500629e82908a60 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:52 +0200 Subject: clk: axi-clkgen: Switch to determine_rate The AXI clkgen clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-50-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-axi-clkgen.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-axi-clkgen.c b/drivers/clk/clk-axi-clkgen.c index a04a3d38c76e..bf4d8ddc93ae 100644 --- a/drivers/clk/clk-axi-clkgen.c +++ b/drivers/clk/clk-axi-clkgen.c @@ -384,23 +384,25 @@ static int axi_clkgen_set_rate(struct clk_hw *clk_hw, return 0; } -static long axi_clkgen_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int axi_clkgen_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct axi_clkgen *axi_clkgen = clk_hw_to_axi_clkgen(hw); const struct axi_clkgen_limits *limits = &axi_clkgen->limits; unsigned int d, m, dout; unsigned long long tmp; - axi_clkgen_calc_params(limits, *parent_rate, rate, &d, &m, &dout); + axi_clkgen_calc_params(limits, req->best_parent_rate, req->rate, + &d, &m, &dout); if (d == 0 || dout == 0 || m == 0) return -EINVAL; - tmp = (unsigned long long)*parent_rate * m; + tmp = (unsigned long long)req->best_parent_rate * m; tmp = DIV_ROUND_CLOSEST_ULL(tmp, dout * d); - return min_t(unsigned long long, tmp, LONG_MAX); + req->rate = min_t(unsigned long long, tmp, LONG_MAX); + return 0; } static unsigned int axi_clkgen_get_div(struct axi_clkgen *axi_clkgen, @@ -495,7 +497,7 @@ static u8 axi_clkgen_get_parent(struct clk_hw *clk_hw) static const struct clk_ops axi_clkgen_ops = { .recalc_rate = axi_clkgen_recalc_rate, - .round_rate = axi_clkgen_round_rate, + .determine_rate = axi_clkgen_determine_rate, .set_rate = axi_clkgen_set_rate, .enable = axi_clkgen_enable, .disable = axi_clkgen_disable, -- cgit v1.2.3-58-ga151 From 81fdf73ac7dd4ff12a078a2511a7222d72aec8f8 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:53 +0200 Subject: clk: cdce706: divider: Switch to determine_rate The cdce706 divider clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Cc: Max Filippov Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-51-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-cdce706.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-cdce706.c b/drivers/clk/clk-cdce706.c index 139aa0954cc1..1c112bb51be6 100644 --- a/drivers/clk/clk-cdce706.c +++ b/drivers/clk/clk-cdce706.c @@ -288,18 +288,19 @@ static unsigned long cdce706_divider_recalc_rate(struct clk_hw *hw, return 0; } -static long cdce706_divider_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int cdce706_divider_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct cdce706_hw_data *hwd = to_hw_data(hw); struct cdce706_dev_data *cdce = hwd->dev_data; + unsigned long rate = req->rate; unsigned long mul, div; dev_dbg(&hwd->dev_data->client->dev, "%s, rate: %lu, parent_rate: %lu\n", - __func__, rate, *parent_rate); + __func__, rate, req->best_parent_rate); - rational_best_approximation(rate, *parent_rate, + rational_best_approximation(rate, req->best_parent_rate, 1, CDCE706_DIVIDER_DIVIDER_MAX, &mul, &div); if (!mul) @@ -344,8 +345,8 @@ static long cdce706_divider_round_rate(struct clk_hw *hw, unsigned long rate, dev_dbg(&hwd->dev_data->client->dev, "%s, altering parent rate: %lu -> %lu\n", - __func__, *parent_rate, rate * div); - *parent_rate = rate * div; + __func__, req->best_parent_rate, rate * div); + req->best_parent_rate = rate * div; } hwd->div = div; @@ -353,7 +354,8 @@ static long cdce706_divider_round_rate(struct clk_hw *hw, unsigned long rate, "%s, divider: %d, div: %lu\n", __func__, hwd->idx, div); - return *parent_rate / div; + req->rate = req->best_parent_rate / div; + return 0; } static int cdce706_divider_set_rate(struct clk_hw *hw, unsigned long rate, @@ -375,7 +377,7 @@ static const struct clk_ops cdce706_divider_ops = { .set_parent = cdce706_divider_set_parent, .get_parent = cdce706_divider_get_parent, .recalc_rate = cdce706_divider_recalc_rate, - .round_rate = cdce706_divider_round_rate, + .determine_rate = cdce706_divider_determine_rate, .set_rate = cdce706_divider_set_rate, }; -- cgit v1.2.3-58-ga151 From 924418cb851f7107930c4fd61b377f39e5286503 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:54 +0200 Subject: clk: cdce706: clkout: Switch to determine_rate The cdce706 clkout clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Cc: Max Filippov Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-52-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-cdce706.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-cdce706.c b/drivers/clk/clk-cdce706.c index 1c112bb51be6..34f57d36b7ff 100644 --- a/drivers/clk/clk-cdce706.c +++ b/drivers/clk/clk-cdce706.c @@ -423,11 +423,12 @@ static unsigned long cdce706_clkout_recalc_rate(struct clk_hw *hw, return parent_rate; } -static long cdce706_clkout_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int cdce706_clkout_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { - *parent_rate = rate; - return rate; + req->best_parent_rate = req->rate; + + return 0; } static int cdce706_clkout_set_rate(struct clk_hw *hw, unsigned long rate, @@ -442,7 +443,7 @@ static const struct clk_ops cdce706_clkout_ops = { .set_parent = cdce706_clkout_set_parent, .get_parent = cdce706_clkout_get_parent, .recalc_rate = cdce706_clkout_recalc_rate, - .round_rate = cdce706_clkout_round_rate, + .determine_rate = cdce706_clkout_determine_rate, .set_rate = cdce706_clkout_set_rate, }; -- cgit v1.2.3-58-ga151 From 61c34af50c5f219bdeb990026b1b560d8d8eb67c Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:55 +0200 Subject: clk: si5341: Switch to determine_rate The SI5341 output clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-53-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-si5341.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-si5341.c b/drivers/clk/clk-si5341.c index 4b65def64109..68160510f448 100644 --- a/drivers/clk/clk-si5341.c +++ b/drivers/clk/clk-si5341.c @@ -828,19 +828,20 @@ static unsigned long si5341_output_clk_recalc_rate(struct clk_hw *hw, return parent_rate / r_divider; } -static long si5341_output_clk_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int si5341_output_clk_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { + unsigned long rate = req->rate; unsigned long r; if (!rate) return 0; - r = *parent_rate >> 1; + r = req->best_parent_rate >> 1; /* If rate is an even divisor, no changes to parent required */ if (r && !(r % rate)) - return (long)rate; + return 0; if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) { if (rate > 200000000) { @@ -850,14 +851,15 @@ static long si5341_output_clk_round_rate(struct clk_hw *hw, unsigned long rate, /* Take a parent frequency near 400 MHz */ r = (400000000u / rate) & ~1; } - *parent_rate = r * rate; + req->best_parent_rate = r * rate; } else { /* We cannot change our parent's rate, report what we can do */ r /= rate; - rate = *parent_rate / (r << 1); + rate = req->best_parent_rate / (r << 1); } - return rate; + req->rate = rate; + return 0; } static int si5341_output_clk_set_rate(struct clk_hw *hw, unsigned long rate, @@ -930,7 +932,7 @@ static const struct clk_ops si5341_output_clk_ops = { .prepare = si5341_output_clk_prepare, .unprepare = si5341_output_clk_unprepare, .recalc_rate = si5341_output_clk_recalc_rate, - .round_rate = si5341_output_clk_round_rate, + .determine_rate = si5341_output_clk_determine_rate, .set_rate = si5341_output_clk_set_rate, .set_parent = si5341_output_set_parent, .get_parent = si5341_output_get_parent, -- cgit v1.2.3-58-ga151 From 08add3c1d80d3325fb3d826e14a1382d63e13e7c Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:56 +0200 Subject: clk: si5351: pll: Switch to determine_rate The SI5351 PLL clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-54-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-si5351.c | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-si5351.c b/drivers/clk/clk-si5351.c index 4fcf7056717e..5992832774ad 100644 --- a/drivers/clk/clk-si5351.c +++ b/drivers/clk/clk-si5351.c @@ -442,11 +442,12 @@ static unsigned long si5351_pll_recalc_rate(struct clk_hw *hw, return (unsigned long)rate; } -static long si5351_pll_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int si5351_pll_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct si5351_hw_data *hwdata = container_of(hw, struct si5351_hw_data, hw); + unsigned long rate = req->rate; unsigned long rfrac, denom, a, b, c; unsigned long long lltmp; @@ -456,18 +457,18 @@ static long si5351_pll_round_rate(struct clk_hw *hw, unsigned long rate, rate = SI5351_PLL_VCO_MAX; /* determine integer part of feedback equation */ - a = rate / *parent_rate; + a = rate / req->best_parent_rate; if (a < SI5351_PLL_A_MIN) - rate = *parent_rate * SI5351_PLL_A_MIN; + rate = req->best_parent_rate * SI5351_PLL_A_MIN; if (a > SI5351_PLL_A_MAX) - rate = *parent_rate * SI5351_PLL_A_MAX; + rate = req->best_parent_rate * SI5351_PLL_A_MAX; /* find best approximation for b/c = fVCO mod fIN */ denom = 1000 * 1000; - lltmp = rate % (*parent_rate); + lltmp = rate % (req->best_parent_rate); lltmp *= denom; - do_div(lltmp, *parent_rate); + do_div(lltmp, req->best_parent_rate); rfrac = (unsigned long)lltmp; b = 0; @@ -484,19 +485,20 @@ static long si5351_pll_round_rate(struct clk_hw *hw, unsigned long rate, hwdata->params.p1 -= 512; /* recalculate rate by fIN * (a + b/c) */ - lltmp = *parent_rate; + lltmp = req->best_parent_rate; lltmp *= b; do_div(lltmp, c); rate = (unsigned long)lltmp; - rate += *parent_rate * a; + rate += req->best_parent_rate * a; dev_dbg(&hwdata->drvdata->client->dev, "%s - %s: a = %lu, b = %lu, c = %lu, parent_rate = %lu, rate = %lu\n", __func__, clk_hw_get_name(hw), a, b, c, - *parent_rate, rate); + req->best_parent_rate, rate); - return rate; + req->rate = rate; + return 0; } static int si5351_pll_set_rate(struct clk_hw *hw, unsigned long rate, @@ -533,7 +535,7 @@ static const struct clk_ops si5351_pll_ops = { .set_parent = si5351_pll_set_parent, .get_parent = si5351_pll_get_parent, .recalc_rate = si5351_pll_recalc_rate, - .round_rate = si5351_pll_round_rate, + .determine_rate = si5351_pll_determine_rate, .set_rate = si5351_pll_set_rate, }; -- cgit v1.2.3-58-ga151 From 4ab2bf813e248eb7dd2269cadd493b25497241b5 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:57 +0200 Subject: clk: si5351: msynth: Switch to determine_rate The SI5351 msynth clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-55-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-si5351.c | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-si5351.c b/drivers/clk/clk-si5351.c index 5992832774ad..07bd67d681f9 100644 --- a/drivers/clk/clk-si5351.c +++ b/drivers/clk/clk-si5351.c @@ -642,11 +642,12 @@ static unsigned long si5351_msynth_recalc_rate(struct clk_hw *hw, return (unsigned long)rate; } -static long si5351_msynth_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int si5351_msynth_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct si5351_hw_data *hwdata = container_of(hw, struct si5351_hw_data, hw); + unsigned long rate = req->rate; unsigned long long lltmp; unsigned long a, b, c; int divby4; @@ -681,10 +682,10 @@ static long si5351_msynth_round_rate(struct clk_hw *hw, unsigned long rate, b = 0; c = 1; - *parent_rate = a * rate; + req->best_parent_rate = a * rate; } else if (hwdata->num >= 6) { /* determine the closest integer divider */ - a = DIV_ROUND_CLOSEST(*parent_rate, rate); + a = DIV_ROUND_CLOSEST(req->best_parent_rate, rate); if (a < SI5351_MULTISYNTH_A_MIN) a = SI5351_MULTISYNTH_A_MIN; if (a > SI5351_MULTISYNTH67_A_MAX) @@ -702,7 +703,7 @@ static long si5351_msynth_round_rate(struct clk_hw *hw, unsigned long rate, } /* determine integer part of divider equation */ - a = *parent_rate / rate; + a = req->best_parent_rate / rate; if (a < SI5351_MULTISYNTH_A_MIN) a = SI5351_MULTISYNTH_A_MIN; if (a > SI5351_MULTISYNTH_A_MAX) @@ -710,7 +711,7 @@ static long si5351_msynth_round_rate(struct clk_hw *hw, unsigned long rate, /* find best approximation for b/c = fVCO mod fOUT */ denom = 1000 * 1000; - lltmp = (*parent_rate) % rate; + lltmp = req->best_parent_rate % rate; lltmp *= denom; do_div(lltmp, rate); rfrac = (unsigned long)lltmp; @@ -724,7 +725,7 @@ static long si5351_msynth_round_rate(struct clk_hw *hw, unsigned long rate, } /* recalculate rate by fOUT = fIN / (a + b/c) */ - lltmp = *parent_rate; + lltmp = req->best_parent_rate; lltmp *= c; do_div(lltmp, a * c + b); rate = (unsigned long)lltmp; @@ -749,9 +750,11 @@ static long si5351_msynth_round_rate(struct clk_hw *hw, unsigned long rate, dev_dbg(&hwdata->drvdata->client->dev, "%s - %s: a = %lu, b = %lu, c = %lu, divby4 = %d, parent_rate = %lu, rate = %lu\n", __func__, clk_hw_get_name(hw), a, b, c, divby4, - *parent_rate, rate); + req->best_parent_rate, rate); - return rate; + req->rate = rate; + + return 0; } static int si5351_msynth_set_rate(struct clk_hw *hw, unsigned long rate, @@ -791,7 +794,7 @@ static const struct clk_ops si5351_msynth_ops = { .set_parent = si5351_msynth_set_parent, .get_parent = si5351_msynth_get_parent, .recalc_rate = si5351_msynth_recalc_rate, - .round_rate = si5351_msynth_round_rate, + .determine_rate = si5351_msynth_determine_rate, .set_rate = si5351_msynth_set_rate, }; -- cgit v1.2.3-58-ga151 From c8bfcfcb969104370367be7b3cf33477a912f8ee Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:58 +0200 Subject: clk: si5351: clkout: Switch to determine_rate The SI5351 clkout clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-56-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk-si5351.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/clk-si5351.c b/drivers/clk/clk-si5351.c index 07bd67d681f9..76487f568a6e 100644 --- a/drivers/clk/clk-si5351.c +++ b/drivers/clk/clk-si5351.c @@ -1037,11 +1037,12 @@ static unsigned long si5351_clkout_recalc_rate(struct clk_hw *hw, return parent_rate >> rdiv; } -static long si5351_clkout_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int si5351_clkout_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct si5351_hw_data *hwdata = container_of(hw, struct si5351_hw_data, hw); + unsigned long rate = req->rate; unsigned char rdiv; /* clkout6/7 can only handle output freqencies < 150MHz */ @@ -1063,13 +1064,13 @@ static long si5351_clkout_round_rate(struct clk_hw *hw, unsigned long rate, rdiv += 1; rate *= 2; } - *parent_rate = rate; + req->best_parent_rate = rate; } else { unsigned long new_rate, new_err, err; /* round to closed rdiv */ rdiv = SI5351_OUTPUT_CLK_DIV_1; - new_rate = *parent_rate; + new_rate = req->best_parent_rate; err = abs(new_rate - rate); do { new_rate >>= 1; @@ -1080,14 +1081,15 @@ static long si5351_clkout_round_rate(struct clk_hw *hw, unsigned long rate, err = new_err; } while (1); } - rate = *parent_rate >> rdiv; + rate = req->best_parent_rate >> rdiv; dev_dbg(&hwdata->drvdata->client->dev, "%s - %s: rdiv = %u, parent_rate = %lu, rate = %lu\n", __func__, clk_hw_get_name(hw), (1 << rdiv), - *parent_rate, rate); + req->best_parent_rate, rate); - return rate; + req->rate = rate; + return 0; } static int si5351_clkout_set_rate(struct clk_hw *hw, unsigned long rate, @@ -1147,7 +1149,7 @@ static const struct clk_ops si5351_clkout_ops = { .set_parent = si5351_clkout_set_parent, .get_parent = si5351_clkout_get_parent, .recalc_rate = si5351_clkout_recalc_rate, - .round_rate = si5351_clkout_round_rate, + .determine_rate = si5351_clkout_determine_rate, .set_rate = si5351_clkout_set_rate, }; -- cgit v1.2.3-58-ga151 From 785e4a29a657ed7948ccc979ca8a09aa26328251 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:25:59 +0200 Subject: clk: da8xx: clk48: Switch to determine_rate The TI DA8xx USB0 clk48 clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Cc: David Lechner Cc: Sekhar Nori Acked-by: David Lechner Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-57-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/davinci/da8xx-cfgchip.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/davinci/da8xx-cfgchip.c b/drivers/clk/davinci/da8xx-cfgchip.c index 1bbcc8e43bc5..e5b2cdfe88ce 100644 --- a/drivers/clk/davinci/da8xx-cfgchip.c +++ b/drivers/clk/davinci/da8xx-cfgchip.c @@ -462,10 +462,12 @@ static unsigned long da8xx_usb0_clk48_recalc_rate(struct clk_hw *hw, return 48000000; } -static long da8xx_usb0_clk48_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int da8xx_usb0_clk48_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { - return 48000000; + req->rate = 48000000; + + return 0; } static int da8xx_usb0_clk48_set_parent(struct clk_hw *hw, u8 index) @@ -494,7 +496,7 @@ static const struct clk_ops da8xx_usb0_clk48_ops = { .disable = da8xx_usb0_clk48_disable, .is_enabled = da8xx_usb0_clk48_is_enabled, .recalc_rate = da8xx_usb0_clk48_recalc_rate, - .round_rate = da8xx_usb0_clk48_round_rate, + .determine_rate = da8xx_usb0_clk48_determine_rate, .set_parent = da8xx_usb0_clk48_set_parent, .get_parent = da8xx_usb0_clk48_get_parent, }; -- cgit v1.2.3-58-ga151 From 15d3f365abff5823998ea4976ee0cbce12047637 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:26:00 +0200 Subject: clk: imx: scu: Switch to determine_rate The iMX SCU clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. The round_rate() implementation being shared with other clocks, it's not removed. And if it was an oversight, the clock behaviour can be adjusted later on. Cc: Abel Vesa Cc: Fabio Estevam Cc: Peng Fan Cc: Sascha Hauer Cc: Shawn Guo Cc: linux-arm-kernel@lists.infradead.org Cc: NXP Linux Team Cc: Pengutronix Kernel Team Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-58-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/imx/clk-scu.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) (limited to 'drivers/clk') diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c index 417f893f8895..725b7b3edb63 100644 --- a/drivers/clk/imx/clk-scu.c +++ b/drivers/clk/imx/clk-scu.c @@ -250,6 +250,23 @@ static unsigned long clk_scu_recalc_rate(struct clk_hw *hw, return le32_to_cpu(msg.data.resp.rate); } +/* + * clk_scu_determine_rate - Returns the closest rate for a SCU clock + * @hw: clock to round rate for + * @req: clock rate request + * + * Returns 0 on success, a negative error on failure + */ +static int clk_scu_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) +{ + /* + * Assume we support all the requested rate and let the SCU firmware + * to handle the left work + */ + return 0; +} + /* * clk_scu_round_rate - Round clock rate for a SCU clock * @hw: clock to round rate for @@ -425,7 +442,7 @@ static void clk_scu_unprepare(struct clk_hw *hw) static const struct clk_ops clk_scu_ops = { .recalc_rate = clk_scu_recalc_rate, - .round_rate = clk_scu_round_rate, + .determine_rate = clk_scu_determine_rate, .set_rate = clk_scu_set_rate, .get_parent = clk_scu_get_parent, .set_parent = clk_scu_set_parent, -- cgit v1.2.3-58-ga151 From fa0dadde058404bca3ba2269bf6163f0147b50a6 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:26:01 +0200 Subject: clk: ingenic: cgu: Switch to determine_rate The Ingenic CGU clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Cc: Paul Cercueil Cc: linux-mips@vger.kernel.org Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-59-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/ingenic/cgu.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/ingenic/cgu.c b/drivers/clk/ingenic/cgu.c index 1f7ba30f5a1b..0c9c8344ad11 100644 --- a/drivers/clk/ingenic/cgu.c +++ b/drivers/clk/ingenic/cgu.c @@ -491,22 +491,23 @@ ingenic_clk_calc_div(struct clk_hw *hw, return div; } -static long -ingenic_clk_round_rate(struct clk_hw *hw, unsigned long req_rate, - unsigned long *parent_rate) +static int ingenic_clk_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); const struct ingenic_cgu_clk_info *clk_info = to_clk_info(ingenic_clk); unsigned int div = 1; if (clk_info->type & CGU_CLK_DIV) - div = ingenic_clk_calc_div(hw, clk_info, *parent_rate, req_rate); + div = ingenic_clk_calc_div(hw, clk_info, req->best_parent_rate, + req->rate); else if (clk_info->type & CGU_CLK_FIXDIV) div = clk_info->fixdiv.div; else if (clk_hw_can_set_rate_parent(hw)) - *parent_rate = req_rate; + req->best_parent_rate = req->rate; - return DIV_ROUND_UP(*parent_rate, div); + req->rate = DIV_ROUND_UP(req->best_parent_rate, div); + return 0; } static inline int ingenic_clk_check_stable(struct ingenic_cgu *cgu, @@ -626,7 +627,7 @@ static const struct clk_ops ingenic_clk_ops = { .set_parent = ingenic_clk_set_parent, .recalc_rate = ingenic_clk_recalc_rate, - .round_rate = ingenic_clk_round_rate, + .determine_rate = ingenic_clk_determine_rate, .set_rate = ingenic_clk_set_rate, .enable = ingenic_clk_enable, -- cgit v1.2.3-58-ga151 From 65c1f037b4921dcab187574466f5199bd5c9d71f Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:26:02 +0200 Subject: clk: ingenic: tcu: Switch to determine_rate The Ingenic TCU clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Cc: Paul Cercueil Cc: linux-mips@vger.kernel.org Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-60-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/ingenic/tcu.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/ingenic/tcu.c b/drivers/clk/ingenic/tcu.c index d5544cbc5c48..7d04ef40b7cf 100644 --- a/drivers/clk/ingenic/tcu.c +++ b/drivers/clk/ingenic/tcu.c @@ -178,18 +178,21 @@ static u8 ingenic_tcu_get_prescale(unsigned long rate, unsigned long req_rate) return 5; /* /1024 divider */ } -static long ingenic_tcu_round_rate(struct clk_hw *hw, unsigned long req_rate, - unsigned long *parent_rate) +static int ingenic_tcu_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { - unsigned long rate = *parent_rate; + unsigned long rate = req->best_parent_rate; u8 prescale; - if (req_rate > rate) - return rate; + if (req->rate > rate) { + req->rate = rate; + return 0; + } - prescale = ingenic_tcu_get_prescale(rate, req_rate); + prescale = ingenic_tcu_get_prescale(rate, req->rate); - return rate >> (prescale * 2); + req->rate = rate >> (prescale * 2); + return 0; } static int ingenic_tcu_set_rate(struct clk_hw *hw, unsigned long req_rate, @@ -219,7 +222,7 @@ static const struct clk_ops ingenic_tcu_clk_ops = { .set_parent = ingenic_tcu_set_parent, .recalc_rate = ingenic_tcu_recalc_rate, - .round_rate = ingenic_tcu_round_rate, + .determine_rate = ingenic_tcu_determine_rate, .set_rate = ingenic_tcu_set_rate, .enable = ingenic_tcu_enable, -- cgit v1.2.3-58-ga151 From 302d2f836d78bb6e977054c8ef91ca0d1a902263 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:26:03 +0200 Subject: clk: sprd: composite: Switch to determine_rate The Spreadtrum composite clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Cc: Baolin Wang Cc: Chunyan Zhang Cc: Orson Zhai Acked-by: Chunyan Zhang Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-61-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/sprd/composite.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/sprd/composite.c b/drivers/clk/sprd/composite.c index ebb644820b1e..d3a852720c07 100644 --- a/drivers/clk/sprd/composite.c +++ b/drivers/clk/sprd/composite.c @@ -9,13 +9,19 @@ #include "composite.h" -static long sprd_comp_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int sprd_comp_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct sprd_comp *cc = hw_to_sprd_comp(hw); + unsigned long rate; - return sprd_div_helper_round_rate(&cc->common, &cc->div, - rate, parent_rate); + rate = sprd_div_helper_round_rate(&cc->common, &cc->div, + req->rate, &req->best_parent_rate); + if (rate < 0) + return rate; + + req->rate = rate; + return 0; } static unsigned long sprd_comp_recalc_rate(struct clk_hw *hw, @@ -53,7 +59,7 @@ const struct clk_ops sprd_comp_ops = { .get_parent = sprd_comp_get_parent, .set_parent = sprd_comp_set_parent, - .round_rate = sprd_comp_round_rate, + .determine_rate = sprd_comp_determine_rate, .recalc_rate = sprd_comp_recalc_rate, .set_rate = sprd_comp_set_rate, }; -- cgit v1.2.3-58-ga151 From 36f8a30c0f229e6b74cded8b352a9298ea545151 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:26:04 +0200 Subject: clk: st: flexgen: Switch to determine_rate The ST Flexgen clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-62-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/st/clk-flexgen.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/st/clk-flexgen.c b/drivers/clk/st/clk-flexgen.c index 7ae4f656191e..5292208c4dd8 100644 --- a/drivers/clk/st/clk-flexgen.c +++ b/drivers/clk/st/clk-flexgen.c @@ -119,20 +119,21 @@ clk_best_div(unsigned long parent_rate, unsigned long rate) return parent_rate / rate + ((rate > (2*(parent_rate % rate))) ? 0 : 1); } -static long flexgen_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) +static int flexgen_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { unsigned long div; /* Round div according to exact prate and wished rate */ - div = clk_best_div(*prate, rate); + div = clk_best_div(req->best_parent_rate, req->rate); if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) { - *prate = rate * div; - return rate; + req->best_parent_rate = req->rate * div; + return 0; } - return *prate / div; + req->rate = req->best_parent_rate / div; + return 0; } static unsigned long flexgen_recalc_rate(struct clk_hw *hw, @@ -197,7 +198,7 @@ static const struct clk_ops flexgen_ops = { .is_enabled = flexgen_is_enabled, .get_parent = flexgen_get_parent, .set_parent = flexgen_set_parent, - .round_rate = flexgen_round_rate, + .determine_rate = flexgen_determine_rate, .recalc_rate = flexgen_recalc_rate, .set_rate = flexgen_set_rate, }; -- cgit v1.2.3-58-ga151 From 06ed0fc0fbacee513d84a142a58d5f5cf154c6ff Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:26:05 +0200 Subject: clk: stm32: composite: Switch to determine_rate The STM32 composite clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Cc: Alexandre Torgue Cc: Maxime Coquelin Cc: linux-arm-kernel@lists.infradead.org Cc: linux-stm32@st-md-mailman.stormreply.com Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-63-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/stm32/clk-stm32-core.c | 32 +++++++++++++++++++++----------- 1 file changed, 21 insertions(+), 11 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/stm32/clk-stm32-core.c b/drivers/clk/stm32/clk-stm32-core.c index 3247539683c9..d5aa09e9fce4 100644 --- a/drivers/clk/stm32/clk-stm32-core.c +++ b/drivers/clk/stm32/clk-stm32-core.c @@ -426,15 +426,15 @@ static unsigned long clk_stm32_composite_recalc_rate(struct clk_hw *hw, composite->div_id, parent_rate); } -static long clk_stm32_composite_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) +static int clk_stm32_composite_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_stm32_composite *composite = to_clk_stm32_composite(hw); - const struct stm32_div_cfg *divider; + unsigned long rate; if (composite->div_id == NO_STM32_DIV) - return rate; + return 0; divider = &composite->clock_data->dividers[composite->div_id]; @@ -445,14 +445,24 @@ static long clk_stm32_composite_round_rate(struct clk_hw *hw, unsigned long rate val = readl(composite->base + divider->offset) >> divider->shift; val &= clk_div_mask(divider->width); - return divider_ro_round_rate(hw, rate, prate, divider->table, - divider->width, divider->flags, - val); + rate = divider_ro_round_rate(hw, req->rate, &req->best_parent_rate, + divider->table, divider->width, divider->flags, + val); + if (rate < 0) + return rate; + + req->rate = rate; + return 0; } - return divider_round_rate_parent(hw, clk_hw_get_parent(hw), - rate, prate, divider->table, - divider->width, divider->flags); + rate = divider_round_rate_parent(hw, clk_hw_get_parent(hw), + req->rate, &req->best_parent_rate, + divider->table, divider->width, divider->flags); + if (rate < 0) + return rate; + + req->rate = rate; + return 0; } static u8 clk_stm32_composite_get_parent(struct clk_hw *hw) @@ -602,7 +612,7 @@ static void clk_stm32_composite_disable_unused(struct clk_hw *hw) const struct clk_ops clk_stm32_composite_ops = { .set_rate = clk_stm32_composite_set_rate, .recalc_rate = clk_stm32_composite_recalc_rate, - .round_rate = clk_stm32_composite_round_rate, + .determine_rate = clk_stm32_composite_determine_rate, .get_parent = clk_stm32_composite_get_parent, .set_parent = clk_stm32_composite_set_parent, .enable = clk_stm32_composite_gate_enable, -- cgit v1.2.3-58-ga151 From 4d78bd80cef7b6a46bb5390b10abb3692fac1c48 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:26:06 +0200 Subject: clk: tegra: periph: Switch to determine_rate The Tegra periph clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Cc: Jonathan Hunter Cc: Peter De Schrijver Cc: Prashant Gaikwad Cc: Thierry Reding Cc: linux-tegra@vger.kernel.org Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-64-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/tegra/clk-periph.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/tegra/clk-periph.c b/drivers/clk/tegra/clk-periph.c index ea443366e972..0626650a7011 100644 --- a/drivers/clk/tegra/clk-periph.c +++ b/drivers/clk/tegra/clk-periph.c @@ -45,16 +45,22 @@ static unsigned long clk_periph_recalc_rate(struct clk_hw *hw, return div_ops->recalc_rate(div_hw, parent_rate); } -static long clk_periph_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) +static int clk_periph_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct tegra_clk_periph *periph = to_clk_periph(hw); const struct clk_ops *div_ops = periph->div_ops; struct clk_hw *div_hw = &periph->divider.hw; + unsigned long rate; __clk_hw_set_clk(div_hw, hw); - return div_ops->round_rate(div_hw, rate, prate); + rate = div_ops->round_rate(div_hw, req->rate, &req->best_parent_rate); + if (rate < 0) + return rate; + + req->rate = rate; + return 0; } static int clk_periph_set_rate(struct clk_hw *hw, unsigned long rate, @@ -130,7 +136,7 @@ const struct clk_ops tegra_clk_periph_ops = { .get_parent = clk_periph_get_parent, .set_parent = clk_periph_set_parent, .recalc_rate = clk_periph_recalc_rate, - .round_rate = clk_periph_round_rate, + .determine_rate = clk_periph_determine_rate, .set_rate = clk_periph_set_rate, .is_enabled = clk_periph_is_enabled, .enable = clk_periph_enable, @@ -154,7 +160,7 @@ static const struct clk_ops tegra_clk_periph_no_gate_ops = { .get_parent = clk_periph_get_parent, .set_parent = clk_periph_set_parent, .recalc_rate = clk_periph_recalc_rate, - .round_rate = clk_periph_round_rate, + .determine_rate = clk_periph_determine_rate, .set_rate = clk_periph_set_rate, .restore_context = clk_periph_restore_context, }; -- cgit v1.2.3-58-ga151 From 493ffb046cf5ad10abafa34b9797dda2340937bb Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:26:07 +0200 Subject: clk: tegra: super: Switch to determine_rate The Tegra super clocks implements a mux with a set_parent hook, but doesn't provide a determine_rate implementation. This is a bit odd, since set_parent() is there to, as its name implies, change the parent of a clock. However, the most likely candidate to trigger that parent change is a call to clk_set_rate(), with determine_rate() figuring out which parent is the best suited for a given rate. The other trigger would be a call to clk_set_parent(), but it's far less used, and it doesn't look like there's any obvious user for that clock. So, the set_parent hook is effectively unused, possibly because of an oversight. However, it could also be an explicit decision by the original author to avoid any reparenting but through an explicit call to clk_set_parent(). The driver does implement round_rate() though, which means that we can change the rate of the clock, but we will never get to change the parent. However, It's hard to tell whether it's been done on purpose or not. Since we'll start mandating a determine_rate() implementation, let's convert the round_rate() implementation to a determine_rate(), which will also make the current behavior explicit. And if it was an oversight, the clock behaviour can be adjusted later on. Cc: Jonathan Hunter Cc: Peter De Schrijver Cc: Prashant Gaikwad Cc: Thierry Reding Cc: linux-tegra@vger.kernel.org Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-65-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/tegra/clk-super.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/tegra/clk-super.c b/drivers/clk/tegra/clk-super.c index 3f3a7a203c5f..7ec47942720c 100644 --- a/drivers/clk/tegra/clk-super.c +++ b/drivers/clk/tegra/clk-super.c @@ -142,15 +142,22 @@ static const struct clk_ops tegra_clk_super_mux_ops = { .restore_context = clk_super_mux_restore_context, }; -static long clk_super_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int clk_super_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct tegra_clk_super_mux *super = to_clk_super_mux(hw); struct clk_hw *div_hw = &super->frac_div.hw; + unsigned long rate; __clk_hw_set_clk(div_hw, hw); - return super->div_ops->round_rate(div_hw, rate, parent_rate); + rate = super->div_ops->round_rate(div_hw, req->rate, + &req->best_parent_rate); + if (rate < 0) + return rate; + + req->rate = rate; + return 0; } static unsigned long clk_super_recalc_rate(struct clk_hw *hw, @@ -193,7 +200,7 @@ const struct clk_ops tegra_clk_super_ops = { .get_parent = clk_super_get_parent, .set_parent = clk_super_set_parent, .set_rate = clk_super_set_rate, - .round_rate = clk_super_round_rate, + .determine_rate = clk_super_determine_rate, .recalc_rate = clk_super_recalc_rate, .restore_context = clk_super_restore_context, }; -- cgit v1.2.3-58-ga151 From 326cc42f9fdc3030676e949d5cea3ccc923fd1de Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 5 May 2023 13:26:10 +0200 Subject: clk: Forbid to register a mux without determine_rate MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The determine_rate hook allows to select the proper parent and its rate for a given clock configuration. On another hand, set_parent is there to change the parent of a mux. Some clocks provide a set_parent hook but don't implement determine_rate. In such a case, set_parent is pretty much useless since the clock framework will always assume the current parent is to be used, and we will thus never change it. This situation can be solved in two ways: - either we don't need to change the parent, and we thus shouldn't implement set_parent; - or we don't want to change the parent, in this case we should set CLK_SET_RATE_NO_REPARENT; - or we're missing a determine_rate implementation. The latter is probably just an oversight from the driver's author, and we should thus raise their awareness about the fact that the current state of the driver is confusing. All the drivers in-tree have been converted by now, so let's prevent any clock with set_parent but without determine_rate to register so that it can't sneak in again in the future. Cc: Abel Vesa Cc: Alessandro Zummo Cc: Alexandre Belloni Cc: Alexandre Torgue Cc: "Andreas Färber" Cc: AngeloGioacchino Del Regno Cc: Baolin Wang Cc: Charles Keepax Cc: Chen-Yu Tsai Cc: Chen-Yu Tsai Cc: Chunyan Zhang Cc: Claudiu Beznea Cc: Daniel Vetter Cc: David Airlie Cc: David Lechner Cc: Dinh Nguyen Cc: Fabio Estevam Cc: Geert Uytterhoeven Cc: Jaroslav Kysela Cc: Jernej Skrabec Cc: Jonathan Hunter Cc: Kishon Vijay Abraham I Cc: Liam Girdwood Cc: Linus Walleij Cc: Luca Ceresoli Cc: Manivannan Sadhasivam Cc: Mark Brown Cc: Markus Schneider-Pargmann Cc: Max Filippov Cc: Maxime Coquelin Cc: Mikko Perttunen Cc: Miles Chen Cc: Nicolas Ferre Cc: Orson Zhai Cc: Paul Cercueil Cc: Peng Fan Cc: Peter De Schrijver Cc: Prashant Gaikwad Cc: Richard Fitzgerald Cc: Samuel Holland Cc: Sascha Hauer Cc: Sekhar Nori Cc: Shawn Guo Cc: Takashi Iwai Cc: Thierry Reding Cc: Ulf Hansson Cc: Vinod Koul Cc: dri-devel@lists.freedesktop.org Cc: linux-actions@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mips@vger.kernel.org Cc: linux-phy@lists.infradead.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rtc@vger.kernel.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-sunxi@lists.linux.dev Cc: linux-tegra@vger.kernel.org Cc: NXP Linux Team Cc: patches@opensource.cirrus.com Cc: Pengutronix Kernel Team Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-68-971d5077e7d2@cerno.tech Signed-off-by: Stephen Boyd --- drivers/clk/clk.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index ad4488dedd01..ffc9f03840b7 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -3776,6 +3776,13 @@ static int __clk_core_init(struct clk_core *core) goto out; } + if (core->ops->set_parent && !core->ops->determine_rate) { + pr_err("%s: %s must implement .set_parent & .determine_rate\n", + __func__, core->name); + ret = -EINVAL; + goto out; + } + if (core->num_parents > 1 && !core->ops->get_parent) { pr_err("%s: %s must implement .get_parent as it has multi parents\n", __func__, core->name); -- cgit v1.2.3-58-ga151 From 2aac2d8b95923203e683c60124877ab434133679 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 9 Jun 2023 10:15:49 +0200 Subject: clk: samsung: add CONFIG_OF dependency When CONFIG_OF is disabled, build testing on x86 runs into a couple of objtool warnings from functions that unconditionally call panic() but have no __noreturn annotation: vmlinux.o: warning: objtool: exynos3250_cmu_isp_probe+0x17: samsung_cmu_register_one() is missing a __noreturn annotation vmlinux.o: warning: objtool: exynos7885_cmu_probe+0x16: exynos_arm64_register_cmu() is missing a __noreturn annotation vmlinux.o: warning: objtool: exynos850_cmu_probe+0x16: exynos_arm64_register_cmu() is missing a __noreturn annotation vmlinux.o: warning: objtool: exynosautov9_cmu_probe+0x16: exynos_arm64_register_cmu() is missing a __noreturn annotation The objtool analysis is correct, and this could be addressed by just returning success whenever CONFIG_OF is disabled to let all that code be eliminated, but since the driver is no use without CONFIG_OF, just add that as a dependency. It will still get compile tested on all architectures since CONFIG_OF is enabled in allmodconfig and most randconfig builds. Cc: Josh Poimboeuf Signed-off-by: Arnd Bergmann Link: https://lore.kernel.org/r/20230609081559.915867-1-arnd@kernel.org Signed-off-by: Krzysztof Kozlowski --- drivers/clk/samsung/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/samsung/Kconfig b/drivers/clk/samsung/Kconfig index c07bb50513bf..76a494e95027 100644 --- a/drivers/clk/samsung/Kconfig +++ b/drivers/clk/samsung/Kconfig @@ -2,6 +2,7 @@ # Recent Exynos platforms should just select COMMON_CLK_SAMSUNG: config COMMON_CLK_SAMSUNG bool "Samsung Exynos clock controller support" if COMPILE_TEST + depends on OF select S3C64XX_COMMON_CLK if ARM && ARCH_S3C64XX select S5PV210_COMMON_CLK if ARM && ARCH_S5PV210 select EXYNOS_3250_COMMON_CLK if ARM && SOC_EXYNOS3250 -- cgit v1.2.3-58-ga151 From e13dd04a242cc8c064b9af8cde38b8e9a548cf81 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Mon, 12 Jun 2023 11:23:32 -0700 Subject: clk: meson: a1: Staticize rtc clk Sparse rightly complains that this symbol is supposed to be static. Cc: Jian Hu Cc: Dmitry Rokosov Cc: Martin Blumenstingl Cc: Jerome Brunet Fixes: 84af914404db ("clk: meson: a1: add Amlogic A1 Peripherals clock controller driver") Link: https://lore.kernel.org/r/20230612182332.371003-1-sboyd@kernel.org Reviewed-by: Jerome Brunet Reviewed-by: Martin Blumenstingl Signed-off-by: Stephen Boyd --- drivers/clk/meson/a1-peripherals.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/clk') diff --git a/drivers/clk/meson/a1-peripherals.c b/drivers/clk/meson/a1-peripherals.c index b320134fefeb..75dfae210fe5 100644 --- a/drivers/clk/meson/a1-peripherals.c +++ b/drivers/clk/meson/a1-peripherals.c @@ -218,7 +218,7 @@ static struct clk_regmap rtc_32k_sel = { }, }; -struct clk_regmap rtc = { +static struct clk_regmap rtc = { .data = &(struct clk_regmap_gate_data){ .offset = RTC_BY_OSCIN_CTRL0, .bit_idx = 30, -- cgit v1.2.3-58-ga151 From be8fa5fd0a48fd2decc4de81ffe72bb3ceacecd9 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Tue, 13 Jun 2023 15:16:31 +0200 Subject: clk: Fix best_parent_rate after moving code into a separate function best_parent_rate entry is still being used in the code and needs to be always updated regardless of the CLK_SET_RATE_NO_REPARENT flag. Fixes: 1b4e99fda73f ("clk: Move no reparent case into a separate function") Signed-off-by: Marek Szyprowski Link: https://lore.kernel.org/r/20230613131631.270192-1-m.szyprowski@samsung.com Acked-by: Maxime Ripard Signed-off-by: Stephen Boyd --- drivers/clk/clk.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clk') diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index ffc9f03840b7..7ac9f7a8cb84 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -629,6 +629,7 @@ clk_core_determine_rate_no_reparent(struct clk_hw *hw, best = clk_core_get_rate_nolock(core); } + req->best_parent_rate = best; req->rate = best; return 0; -- cgit v1.2.3-58-ga151 From 587dd448d9fcfb53486197c9c4bf5be99c75fb7c Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Tue, 13 Jun 2023 12:54:42 -0700 Subject: clk: sprd: composite: Simplify determine_rate implementation The sprd_div_helper_round_rate() function calls divider_round_rate() which calls divider_round_rate_parent() which calls divider_determine_rate(). This call chain converts back and forth from the rate request structure to make a determine_rate clk_op fit with a round_rate clk_op. Simplify the code here by directly calling divider_determine_rate() instead. This fixes a smatch warning where an unsigned long is compared to less than zero, which is impossible. This makes sprd_div_helper_round_rate() unnecessary as well so simply remove it and fold it into the only caller left. Reported-by: Harshit Mogalapalli Closes: https://lore.kernel.org/r/45fdc54e-7ab6-edd6-d55a-473485608473@oracle.com Cc: Maxime Ripard Fixes: 302d2f836d78 ("clk: sprd: composite: Switch to determine_rate") Signed-off-by: Stephen Boyd Link: https://lore.kernel.org/r/20230613195443.1555132-1-sboyd@kernel.org Reviewed-by: Maxime Ripard --- drivers/clk/sprd/composite.c | 9 +-------- drivers/clk/sprd/div.c | 14 ++------------ drivers/clk/sprd/div.h | 5 ----- 3 files changed, 3 insertions(+), 25 deletions(-) (limited to 'drivers/clk') diff --git a/drivers/clk/sprd/composite.c b/drivers/clk/sprd/composite.c index d3a852720c07..ad6b6383e21f 100644 --- a/drivers/clk/sprd/composite.c +++ b/drivers/clk/sprd/composite.c @@ -13,15 +13,8 @@ static int sprd_comp_determine_rate(struct clk_hw *hw, struct clk_rate_request *req) { struct sprd_comp *cc = hw_to_sprd_comp(hw); - unsigned long rate; - rate = sprd_div_helper_round_rate(&cc->common, &cc->div, - req->rate, &req->best_parent_rate); - if (rate < 0) - return rate; - - req->rate = rate; - return 0; + return divider_determine_rate(hw, req, NULL, cc->div.width, 0); } static unsigned long sprd_comp_recalc_rate(struct clk_hw *hw, diff --git a/drivers/clk/sprd/div.c b/drivers/clk/sprd/div.c index 7621a1d1ab9c..c7261630cab4 100644 --- a/drivers/clk/sprd/div.c +++ b/drivers/clk/sprd/div.c @@ -9,23 +9,13 @@ #include "div.h" -long sprd_div_helper_round_rate(struct sprd_clk_common *common, - const struct sprd_div_internal *div, - unsigned long rate, - unsigned long *parent_rate) -{ - return divider_round_rate(&common->hw, rate, parent_rate, - NULL, div->width, 0); -} -EXPORT_SYMBOL_GPL(sprd_div_helper_round_rate); - static long sprd_div_round_rate(struct clk_hw *hw, unsigned long rate, unsigned long *parent_rate) { struct sprd_div *cd = hw_to_sprd_div(hw); - return sprd_div_helper_round_rate(&cd->common, &cd->div, - rate, parent_rate); + return divider_round_rate(&cd->common.hw, rate, parent_rate, NULL, + cd->div.width, 0); } unsigned long sprd_div_helper_recalc_rate(struct sprd_clk_common *common, diff --git a/drivers/clk/sprd/div.h b/drivers/clk/sprd/div.h index 6acfe6b179fc..f5d614b3dcf1 100644 --- a/drivers/clk/sprd/div.h +++ b/drivers/clk/sprd/div.h @@ -64,11 +64,6 @@ static inline struct sprd_div *hw_to_sprd_div(const struct clk_hw *hw) return container_of(common, struct sprd_div, common); } -long sprd_div_helper_round_rate(struct sprd_clk_common *common, - const struct sprd_div_internal *div, - unsigned long rate, - unsigned long *parent_rate); - unsigned long sprd_div_helper_recalc_rate(struct sprd_clk_common *common, const struct sprd_div_internal *div, unsigned long parent_rate); -- cgit v1.2.3-58-ga151 From b8533204885a4e1e643014eccb9c727c55f58ce0 Mon Sep 17 00:00:00 2001 From: Jiapeng Chong Date: Wed, 14 Jun 2023 16:48:08 +0800 Subject: clk: meson: pll: remove unneeded semicolon No functional modification involved. ./drivers/clk/meson/clk-pll.c:373:2-3: Unneeded semicolon. Reported-by: Abaci Robot Signed-off-by: Jiapeng Chong Reviewed-by: Martin Blumenstingl Link: https://lore.kernel.org/r/20230614084808.98819-1-jiapeng.chong@linux.alibaba.com Fixes: b6ec400aa153 ("clk: meson: introduce new pll power-on sequence for A1 SoC family") Signed-off-by: Jerome Brunet --- drivers/clk/meson/clk-pll.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/clk') diff --git a/drivers/clk/meson/clk-pll.c b/drivers/clk/meson/clk-pll.c index 56ec2210f1ad..8fef90bf962f 100644 --- a/drivers/clk/meson/clk-pll.c +++ b/drivers/clk/meson/clk-pll.c @@ -370,7 +370,7 @@ static int meson_clk_pll_enable(struct clk_hw *hw) usleep_range(10, 20); meson_parm_write(clk->map, &pll->current_en, 1); usleep_range(40, 50); - }; + } if (MESON_PARM_APPLICABLE(&pll->l_detect)) { meson_parm_write(clk->map, &pll->l_detect, 1); -- cgit v1.2.3-58-ga151