* [RESEND PATCH v2] clk: imx: scu: Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage
@ 2022-04-25 1:11 Miaoqian Lin
2022-04-27 12:54 ` Abel Vesa
2022-05-02 9:35 ` Abel Vesa
0 siblings, 2 replies; 3+ messages in thread
From: Miaoqian Lin @ 2022-04-25 1:11 UTC (permalink / raw)
To: Abel Vesa, Michael Turquette, Stephen Boyd, Shawn Guo,
Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam,
NXP Linux Team, Dong Aisheng, linux-clk, linux-arm-kernel,
linux-kernel
Cc: linmq006
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 <linmq006@gmail.com>
---
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/20220412065719.17735-1-linmq006@gmail.com/
---
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
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [RESEND PATCH v2] clk: imx: scu: Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage
2022-04-25 1:11 [RESEND PATCH v2] clk: imx: scu: Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage Miaoqian Lin
@ 2022-04-27 12:54 ` Abel Vesa
2022-05-02 9:35 ` Abel Vesa
1 sibling, 0 replies; 3+ messages in thread
From: Abel Vesa @ 2022-04-27 12:54 UTC (permalink / raw)
To: Miaoqian Lin
Cc: Michael Turquette, Stephen Boyd, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
Dong Aisheng, linux-clk, linux-arm-kernel, linux-kernel
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 <linmq006@gmail.com>
I'm fine with this.
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
> ---
> 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/20220412065719.17735-1-linmq006@gmail.com/
> ---
> 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
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [RESEND PATCH v2] clk: imx: scu: Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage
2022-04-25 1:11 [RESEND PATCH v2] clk: imx: scu: Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage Miaoqian Lin
2022-04-27 12:54 ` Abel Vesa
@ 2022-05-02 9:35 ` Abel Vesa
1 sibling, 0 replies; 3+ messages in thread
From: Abel Vesa @ 2022-05-02 9:35 UTC (permalink / raw)
To: Miaoqian Lin
Cc: Michael Turquette, Stephen Boyd, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
Dong Aisheng, linux-clk, linux-arm-kernel, linux-kernel
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 <linmq006@gmail.com>
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/20220412065719.17735-1-linmq006@gmail.com/
> ---
> 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
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2022-05-02 9:37 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2022-04-25 1:11 [RESEND PATCH v2] clk: imx: scu: Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage Miaoqian Lin
2022-04-27 12:54 ` Abel Vesa
2022-05-02 9:35 ` Abel Vesa
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).