2022-04-25 06:09:39

by Miaoqian Lin

Subject: [RESEND PATCH v2] clk: imx: scu: Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage

If the device is already in a runtime PM enabled state
pm_runtime_get_sync() will return 1.

Also, we need to call pm_runtime_put_noidle() when pm_runtime_get_sync()
fails, so use pm_runtime_resume_and_get() instead. this function
will handle this.

Fixes: 78edeb080330 ("clk: imx: scu: add runtime pm support")
Signed-off-by: Miaoqian Lin <[email protected]>
---
changes in v2:
- change pm_runtime_get_sync to pm_runtime_resume_and_get
- current check works fine for pm_runtime_resume_and_get() so stay the
same.
Link: https://lore.kernel.org/all/[email protected]/
---
drivers/clk/imx/clk-scu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c
index 083da31dc3ea..2044e62980e3 100644
--- a/drivers/clk/imx/clk-scu.c
+++ b/drivers/clk/imx/clk-scu.c
@@ -528,7 +528,7 @@ static int imx_clk_scu_probe(struct platform_device *pdev)
pm_runtime_use_autosuspend(&pdev->dev);
pm_runtime_enable(dev);

- ret = pm_runtime_get_sync(dev);
+ ret = pm_runtime_resume_and_get(dev);
if (ret) {
pm_genpd_remove_device(dev);
pm_runtime_disable(dev);
--
2.17.1

2022-04-27 13:22:15

by Abel Vesa

Subject: Re: [RESEND PATCH v2] clk: imx: scu: Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage

On 22-04-25 09:11:17, Miaoqian Lin wrote:
> If the device is already in a runtime PM enabled state
> pm_runtime_get_sync() will return 1.
>
> Also, we need to call pm_runtime_put_noidle() when pm_runtime_get_sync()
> fails, so use pm_runtime_resume_and_get() instead. this function
> will handle this.
>
> Fixes: 78edeb080330 ("clk: imx: scu: add runtime pm support")
> Signed-off-by: Miaoqian Lin <[email protected]>

I'm fine with this.

Reviewed-by: Abel Vesa <[email protected]>

> ---
> changes in v2:
> - change pm_runtime_get_sync to pm_runtime_resume_and_get
> - current check works fine for pm_runtime_resume_and_get() so stay the
> same.
> Link: https://lore.kernel.org/all/[email protected]/
> ---
> drivers/clk/imx/clk-scu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c
> index 083da31dc3ea..2044e62980e3 100644
> --- a/drivers/clk/imx/clk-scu.c
> +++ b/drivers/clk/imx/clk-scu.c
> @@ -528,7 +528,7 @@ static int imx_clk_scu_probe(struct platform_device *pdev)
> pm_runtime_use_autosuspend(&pdev->dev);
> pm_runtime_enable(dev);
>
> - ret = pm_runtime_get_sync(dev);
> + ret = pm_runtime_resume_and_get(dev);
> if (ret) {
> pm_genpd_remove_device(dev);
> pm_runtime_disable(dev);
> --
> 2.17.1
>

2022-05-02 23:04:18

by Abel Vesa

Subject: Re: [RESEND PATCH v2] clk: imx: scu: Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage

On 22-04-25 09:11:17, Miaoqian Lin wrote:
> If the device is already in a runtime PM enabled state
> pm_runtime_get_sync() will return 1.
>
> Also, we need to call pm_runtime_put_noidle() when pm_runtime_get_sync()
> fails, so use pm_runtime_resume_and_get() instead. this function
> will handle this.
>
> Fixes: 78edeb080330 ("clk: imx: scu: add runtime pm support")
> Signed-off-by: Miaoqian Lin <[email protected]>

Applied, thanks.

> ---
> changes in v2:
> - change pm_runtime_get_sync to pm_runtime_resume_and_get
> - current check works fine for pm_runtime_resume_and_get() so stay the
> same.
> Link: https://lore.kernel.org/all/[email protected]/
> ---
> drivers/clk/imx/clk-scu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c
> index 083da31dc3ea..2044e62980e3 100644
> --- a/drivers/clk/imx/clk-scu.c
> +++ b/drivers/clk/imx/clk-scu.c
> @@ -528,7 +528,7 @@ static int imx_clk_scu_probe(struct platform_device *pdev)
> pm_runtime_use_autosuspend(&pdev->dev);
> pm_runtime_enable(dev);
>
> - ret = pm_runtime_get_sync(dev);
> + ret = pm_runtime_resume_and_get(dev);
> if (ret) {
> pm_genpd_remove_device(dev);
> pm_runtime_disable(dev);
> --
> 2.17.1
>