diff options
author | Tomeu Vizoso <tomeu.vizoso@collabora.com> | 2014-12-02 08:54:22 +0100 |
---|---|---|
committer | Michael Turquette <mturquette@linaro.org> | 2014-12-03 16:21:37 -0800 |
commit | 646cafc6aa4d6004d189de1cdc267ab562069ba9 (patch) | |
tree | 6d2f85aecfe37696c0930b1dce17722e863cc804 /drivers/clk | |
parent | 61c7cddfad266ebb86176723f9c679f25cf705fe (diff) |
clk: Change clk_ops->determine_rate to return a clk_hw as the best parent
This is in preparation for clock providers to not have to deal with struct clk.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
Diffstat (limited to 'drivers/clk')
-rw-r--r-- | drivers/clk/at91/clk-programmable.c | 4 | ||||
-rw-r--r-- | drivers/clk/bcm/clk-kona.c | 4 | ||||
-rw-r--r-- | drivers/clk/clk-composite.c | 9 | ||||
-rw-r--r-- | drivers/clk/clk.c | 17 | ||||
-rw-r--r-- | drivers/clk/hisilicon/clk-hi3620.c | 2 | ||||
-rw-r--r-- | drivers/clk/mmp/clk-mix.c | 4 | ||||
-rw-r--r-- | drivers/clk/qcom/clk-pll.c | 2 | ||||
-rw-r--r-- | drivers/clk/qcom/clk-rcg.c | 20 | ||||
-rw-r--r-- | drivers/clk/qcom/clk-rcg2.c | 28 | ||||
-rw-r--r-- | drivers/clk/sunxi/clk-factors.c | 4 | ||||
-rw-r--r-- | drivers/clk/sunxi/clk-sun6i-ar100.c | 4 |
11 files changed, 57 insertions, 41 deletions
diff --git a/drivers/clk/at91/clk-programmable.c b/drivers/clk/at91/clk-programmable.c index 62e2509f9df1..bbdb1b985c91 100644 --- a/drivers/clk/at91/clk-programmable.c +++ b/drivers/clk/at91/clk-programmable.c @@ -57,7 +57,7 @@ static unsigned long clk_programmable_recalc_rate(struct clk_hw *hw, static long clk_programmable_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk) + struct clk_hw **best_parent_hw) { struct clk *parent = NULL; long best_rate = -EINVAL; @@ -84,7 +84,7 @@ static long clk_programmable_determine_rate(struct clk_hw *hw, if (best_rate < 0 || (rate - tmp_rate) < (rate - best_rate)) { best_rate = tmp_rate; *best_parent_rate = parent_rate; - *best_parent_clk = parent; + *best_parent_hw = __clk_get_hw(parent); } if (!best_rate) diff --git a/drivers/clk/bcm/clk-kona.c b/drivers/clk/bcm/clk-kona.c index 95af2e665dd3..1c06f6f3a8c5 100644 --- a/drivers/clk/bcm/clk-kona.c +++ b/drivers/clk/bcm/clk-kona.c @@ -1032,7 +1032,7 @@ static long kona_peri_clk_round_rate(struct clk_hw *hw, unsigned long rate, } static long kona_peri_clk_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *best_parent_rate, struct clk **best_parent) + unsigned long *best_parent_rate, struct clk_hw **best_parent) { struct kona_clk *bcm_clk = to_kona_clk(hw); struct clk *clk = hw->clk; @@ -1075,7 +1075,7 @@ static long kona_peri_clk_determine_rate(struct clk_hw *hw, unsigned long rate, if (delta < best_delta) { best_delta = delta; best_rate = other_rate; - *best_parent = parent; + *best_parent = __clk_get_hw(parent); *best_parent_rate = parent_rate; } } diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c index b9355daf8065..4386697236a7 100644 --- a/drivers/clk/clk-composite.c +++ b/drivers/clk/clk-composite.c @@ -57,7 +57,7 @@ static unsigned long clk_composite_recalc_rate(struct clk_hw *hw, static long clk_composite_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_p) + struct clk_hw **best_parent_p) { struct clk_composite *composite = to_clk_composite(hw); const struct clk_ops *rate_ops = composite->rate_ops; @@ -80,8 +80,9 @@ static long clk_composite_determine_rate(struct clk_hw *hw, unsigned long rate, *best_parent_p = NULL; if (__clk_get_flags(hw->clk) & CLK_SET_RATE_NO_REPARENT) { - *best_parent_p = clk_get_parent(mux_hw->clk); - *best_parent_rate = __clk_get_rate(*best_parent_p); + parent = clk_get_parent(mux_hw->clk); + *best_parent_p = __clk_get_hw(parent); + *best_parent_rate = __clk_get_rate(parent); return rate_ops->round_rate(rate_hw, rate, best_parent_rate); @@ -103,7 +104,7 @@ static long clk_composite_determine_rate(struct clk_hw *hw, unsigned long rate, if (!rate_diff || !*best_parent_p || best_rate_diff > rate_diff) { - *best_parent_p = parent; + *best_parent_p = __clk_get_hw(parent); *best_parent_rate = parent_rate; best_rate_diff = rate_diff; best_rate = tmp_rate; diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index f549e8b1d5ed..44cdc47a6cc5 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -702,7 +702,7 @@ struct clk *__clk_lookup(const char *name) */ long __clk_mux_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_p) + struct clk_hw **best_parent_p) { struct clk *clk = hw->clk, *parent, *best_parent = NULL; int i, num_parents; @@ -738,7 +738,7 @@ long __clk_mux_determine_rate(struct clk_hw *hw, unsigned long rate, out: if (best_parent) - *best_parent_p = best_parent; + *best_parent_p = best_parent->hw; *best_parent_rate = best; return best; @@ -946,6 +946,7 @@ unsigned long __clk_round_rate(struct clk *clk, unsigned long rate) { unsigned long parent_rate = 0; struct clk *parent; + struct clk_hw *parent_hw; if (!clk) return 0; @@ -954,10 +955,11 @@ unsigned long __clk_round_rate(struct clk *clk, unsigned long rate) if (parent) parent_rate = parent->rate; - if (clk->ops->determine_rate) + if (clk->ops->determine_rate) { + parent_hw = parent ? parent->hw : NULL; return clk->ops->determine_rate(clk->hw, rate, &parent_rate, - &parent); - else if (clk->ops->round_rate) + &parent_hw); + } else if (clk->ops->round_rate) return clk->ops->round_rate(clk->hw, rate, &parent_rate); else if (clk->flags & CLK_SET_RATE_PARENT) return __clk_round_rate(clk->parent, rate); @@ -1345,6 +1347,7 @@ static struct clk *clk_calc_new_rates(struct clk *clk, unsigned long rate) { struct clk *top = clk; struct clk *old_parent, *parent; + struct clk_hw *parent_hw; unsigned long best_parent_rate = 0; unsigned long new_rate; int p_index = 0; @@ -1360,9 +1363,11 @@ static struct clk *clk_calc_new_rates(struct clk *clk, unsigned long rate) /* find the closest rate and parent clk/rate */ if (clk->ops->determine_rate) { + parent_hw = parent ? parent->hw : NULL; new_rate = clk->ops->determine_rate(clk->hw, rate, &best_parent_rate, - &parent); + &parent_hw); + parent = parent_hw->clk; } else if (clk->ops->round_rate) { new_rate = clk->ops->round_rate(clk->hw, rate, &best_parent_rate); diff --git a/drivers/clk/hisilicon/clk-hi3620.c b/drivers/clk/hisilicon/clk-hi3620.c index 640ea3327c3e..007144f81f50 100644 --- a/drivers/clk/hisilicon/clk-hi3620.c +++ b/drivers/clk/hisilicon/clk-hi3620.c @@ -296,7 +296,7 @@ static unsigned long mmc_clk_recalc_rate(struct clk_hw *hw, static long mmc_clk_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_p) + struct clk_hw **best_parent_p) { struct clk_mmc *mclk = to_mmc(hw); unsigned long best = 0; diff --git a/drivers/clk/mmp/clk-mix.c b/drivers/clk/mmp/clk-mix.c index b79742c47d53..48fa53c7ce5e 100644 --- a/drivers/clk/mmp/clk-mix.c +++ b/drivers/clk/mmp/clk-mix.c @@ -203,7 +203,7 @@ error: static long mmp_clk_mix_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk) + struct clk_hw **best_parent_clk) { struct mmp_clk_mix *mix = to_clk_mix(hw); struct mmp_clk_mix_clk_table *item; @@ -264,7 +264,7 @@ static long mmp_clk_mix_determine_rate(struct clk_hw *hw, unsigned long rate, found: *best_parent_rate = parent_rate_best; - *best_parent_clk = parent_best; + *best_parent_clk = __clk_get_hw(parent_best); return mix_rate_best; } diff --git a/drivers/clk/qcom/clk-pll.c b/drivers/clk/qcom/clk-pll.c index b823bc3b6250..60873a7f45d9 100644 --- a/drivers/clk/qcom/clk-pll.c +++ b/drivers/clk/qcom/clk-pll.c @@ -141,7 +141,7 @@ struct pll_freq_tbl *find_freq(const struct pll_freq_tbl *f, unsigned long rate) static long clk_pll_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p) { struct clk_pll *pll = to_clk_pll(hw); const struct pll_freq_tbl *f; diff --git a/drivers/clk/qcom/clk-rcg.c b/drivers/clk/qcom/clk-rcg.c index b6e6959e89aa..0b93972c8807 100644 --- a/drivers/clk/qcom/clk-rcg.c +++ b/drivers/clk/qcom/clk-rcg.c @@ -368,16 +368,17 @@ clk_dyn_rcg_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) static long _freq_tbl_determine_rate(struct clk_hw *hw, const struct freq_tbl *f, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p_hw) { unsigned long clk_flags; + struct clk *p; f = qcom_find_freq(f, rate); if (!f) return -EINVAL; clk_flags = __clk_get_flags(hw->clk); - *p = clk_get_parent_by_index(hw->clk, f->src); + p = clk_get_parent_by_index(hw->clk, f->src); if (clk_flags & CLK_SET_RATE_PARENT) { rate = rate * f->pre_div; if (f->n) { @@ -387,15 +388,16 @@ static long _freq_tbl_determine_rate(struct clk_hw *hw, rate = tmp; } } else { - rate = __clk_get_rate(*p); + rate = __clk_get_rate(p); } + *p_hw = __clk_get_hw(p); *p_rate = rate; return f->freq; } static long clk_rcg_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p) { struct clk_rcg *rcg = to_clk_rcg(hw); @@ -403,7 +405,7 @@ static long clk_rcg_determine_rate(struct clk_hw *hw, unsigned long rate, } static long clk_dyn_rcg_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p) { struct clk_dyn_rcg *rcg = to_clk_dyn_rcg(hw); @@ -411,13 +413,15 @@ static long clk_dyn_rcg_determine_rate(struct clk_hw *hw, unsigned long rate, } static long clk_rcg_bypass_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p_hw) { struct clk_rcg *rcg = to_clk_rcg(hw); const struct freq_tbl *f = rcg->freq_tbl; + struct clk *p; - *p = clk_get_parent_by_index(hw->clk, f->src); - *p_rate = __clk_round_rate(*p, rate); + p = clk_get_parent_by_index(hw->clk, f->src); + *p_hw = __clk_get_hw(p); + *p_rate = __clk_round_rate(p, rate); return *p_rate; } diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c index cfa9eb4fe9ca..08b8b3729f53 100644 --- a/drivers/clk/qcom/clk-rcg2.c +++ b/drivers/clk/qcom/clk-rcg2.c @@ -175,16 +175,17 @@ clk_rcg2_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) static long _freq_tbl_determine_rate(struct clk_hw *hw, const struct freq_tbl *f, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p_hw) { unsigned long clk_flags; + struct clk *p; f = qcom_find_freq(f, rate); if (!f) return -EINVAL; clk_flags = __clk_get_flags(hw->clk); - *p = clk_get_parent_by_index(hw->clk, f->src); + p = clk_get_parent_by_index(hw->clk, f->src); if (clk_flags & CLK_SET_RATE_PARENT) { if (f->pre_div) { rate /= 2; @@ -198,15 +199,16 @@ static long _freq_tbl_determine_rate(struct clk_hw *hw, rate = tmp; } } else { - rate = __clk_get_rate(*p); + rate = __clk_get_rate(p); } + *p_hw = __clk_get_hw(p); *p_rate = rate; return f->freq; } static long clk_rcg2_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); @@ -359,7 +361,7 @@ static int clk_edp_pixel_set_rate_and_parent(struct clk_hw *hw, } static long clk_edp_pixel_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); const struct freq_tbl *f = rcg->freq_tbl; @@ -371,7 +373,7 @@ static long clk_edp_pixel_determine_rate(struct clk_hw *hw, unsigned long rate, u32 hid_div; /* Force the correct parent */ - *p = clk_get_parent_by_index(hw->clk, f->src); + *p = __clk_get_hw(clk_get_parent_by_index(hw->clk, f->src)); if (src_rate == 810000000) frac = frac_table_810m; @@ -410,18 +412,20 @@ const struct clk_ops clk_edp_pixel_ops = { EXPORT_SYMBOL_GPL(clk_edp_pixel_ops); static long clk_byte_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p_hw) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); const struct freq_tbl *f = rcg->freq_tbl; unsigned long parent_rate, div; u32 mask = BIT(rcg->hid_width) - 1; + struct clk *p; if (rate == 0) return -EINVAL; - *p = clk_get_parent_by_index(hw->clk, f->src); - *p_rate = parent_rate = __clk_round_rate(*p, rate); + p = clk_get_parent_by_index(hw->clk, f->src); + *p_hw = __clk_get_hw(p); + *p_rate = parent_rate = __clk_round_rate(p, rate); div = DIV_ROUND_UP((2 * parent_rate), rate) - 1; div = min_t(u32, div, mask); @@ -472,14 +476,16 @@ static const struct frac_entry frac_table_pixel[] = { }; static long clk_pixel_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); unsigned long request, src_rate; int delta = 100000; const struct freq_tbl *f = rcg->freq_tbl; const struct frac_entry *frac = frac_table_pixel; - struct clk *parent = *p = clk_get_parent_by_index(hw->clk, f->src); + struct clk *parent = clk_get_parent_by_index(hw->clk, f->src); + + *p = __clk_get_hw(parent); for (; frac->num; frac++) { request = (rate * frac->den) / frac->num; diff --git a/drivers/clk/sunxi/clk-factors.c b/drivers/clk/sunxi/clk-factors.c index 5521e866fa5e..62e08fb58554 100644 --- a/drivers/clk/sunxi/clk-factors.c +++ b/drivers/clk/sunxi/clk-factors.c @@ -81,7 +81,7 @@ static long clk_factors_round_rate(struct clk_hw *hw, unsigned long rate, static long clk_factors_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_p) + struct clk_hw **best_parent_p) { struct clk *clk = hw->clk, *parent, *best_parent = NULL; int i, num_parents; @@ -108,7 +108,7 @@ static long clk_factors_determine_rate(struct clk_hw *hw, unsigned long rate, } if (best_parent) - *best_parent_p = best_parent; + *best_parent_p = __clk_get_hw(best_parent); *best_parent_rate = best; return best_child_rate; diff --git a/drivers/clk/sunxi/clk-sun6i-ar100.c b/drivers/clk/sunxi/clk-sun6i-ar100.c index acca53290be2..3d282fb8f85c 100644 --- a/drivers/clk/sunxi/clk-sun6i-ar100.c +++ b/drivers/clk/sunxi/clk-sun6i-ar100.c @@ -46,7 +46,7 @@ static unsigned long ar100_recalc_rate(struct clk_hw *hw, static long ar100_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk) + struct clk_hw **best_parent_clk) { int nparents = __clk_get_num_parents(hw->clk); long best_rate = -EINVAL; @@ -100,7 +100,7 @@ static long ar100_determine_rate(struct clk_hw *hw, unsigned long rate, tmp_rate = (parent_rate >> shift) / div; if (!*best_parent_clk || tmp_rate > best_rate) { - *best_parent_clk = parent; + *best_parent_clk = __clk_get_hw(parent); *best_parent_rate = parent_rate; best_rate = tmp_rate; } |