From 18a50f82cd2ff3e43589d44349e71fdbef0d3fdd Mon Sep 17 00:00:00 2001 From: Nitin Garg Date: Fri, 4 Jun 2021 17:09:43 +0800 Subject: clk: imx: scu: Do not enable runtime PM for CPU clks Since CPU clocks are managed by CPUFREQ and ATF, do not enable runtime PM otherwise rpm gets out of status as cpufreq also manages clock states. Signed-off-by: Nitin Garg Signed-off-by: Dong Aisheng Reviewed-by: Abel Vesa Signed-off-by: Abel Vesa --- drivers/clk/imx/clk-scu.c | 30 ++++++++++++++++++------------ 1 file changed, 18 insertions(+), 12 deletions(-) (limited to 'drivers/clk/imx') diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c index 597cd2754370..083da31dc3ea 100644 --- a/drivers/clk/imx/clk-scu.c +++ b/drivers/clk/imx/clk-scu.c @@ -521,16 +521,19 @@ static int imx_clk_scu_probe(struct platform_device *pdev) struct clk_hw *hw; int ret; - pm_runtime_set_suspended(dev); - pm_runtime_set_autosuspend_delay(dev, 50); - pm_runtime_use_autosuspend(&pdev->dev); - pm_runtime_enable(dev); - - ret = pm_runtime_get_sync(dev); - if (ret) { - pm_genpd_remove_device(dev); - pm_runtime_disable(dev); - return ret; + if (!((clk->rsrc == IMX_SC_R_A35) || (clk->rsrc == IMX_SC_R_A53) || + (clk->rsrc == IMX_SC_R_A72))) { + pm_runtime_set_suspended(dev); + pm_runtime_set_autosuspend_delay(dev, 50); + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_enable(dev); + + ret = pm_runtime_get_sync(dev); + if (ret) { + pm_genpd_remove_device(dev); + pm_runtime_disable(dev); + return ret; + } } hw = __imx_clk_scu(dev, clk->name, clk->parents, clk->num_parents, @@ -543,8 +546,11 @@ static int imx_clk_scu_probe(struct platform_device *pdev) clk->hw = hw; list_add_tail(&clk->node, &imx_scu_clks[clk->rsrc]); - pm_runtime_mark_last_busy(&pdev->dev); - pm_runtime_put_autosuspend(&pdev->dev); + if (!((clk->rsrc == IMX_SC_R_A35) || (clk->rsrc == IMX_SC_R_A53) || + (clk->rsrc == IMX_SC_R_A72))) { + pm_runtime_mark_last_busy(&pdev->dev); + pm_runtime_put_autosuspend(&pdev->dev); + } dev_dbg(dev, "register SCU clock rsrc:%d type:%d\n", clk->rsrc, clk->clk_type); -- cgit v1.2.3-58-ga151