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LF-2692: clk: imx: scu: Do not enable runtime PM for CPU clks 

Since CPU clocks are managed by CPUFREQ, do not enable
runtime PM otherwise rpm gets out of status as cpufreq
also manages clock states.

Signed-off-by: Nitin Garg <nitin.garg@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
(cherry picked from commit e28b1ba00636c81fdd607379dc1cec23059c0918)
(cherry picked from commit 813a21285eca606aca805f1ac3aabe09e9f4e346)
This commit is contained in:
Nitin Garg 2021-01-06 19:59:22 -06:00 committed by Denys Drozdov
parent dc760ca6a5
commit 48afde5dc8
1 changed files with 17 additions and 11 deletions
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28
drivers/clk/imx/clk-scu.c
View File

@ -531,16 +531,19 @@ 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);
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;
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,
@ -553,8 +556,11 @@ 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);