Re: [PATCH v4 04/14] soc: mediatek: mtk-svs: Use pm_runtime_resume_and_get() in svs_init01()

[Matthias Brugger]

On 11/01/2023 08:45, Roger Lu wrote:
> From: Shang XiaoJing <shangxiaojing@xxxxxxxxxx>
>
> svs_init01() calls pm_runtime_get_sync() and added fail path as
> svs_init01_finish to put usage_counter. However, pm_runtime_get_sync()
> will increment usage_counter even it failed. Fix it by replacing it with
> pm_runtime_resume_and_get() to keep usage counter balanced.
>
> Fixes: 681a02e95000 ("soc: mediatek: SVS: introduce MTK SVS engine")
> Signed-off-by: Shang XiaoJing <shangxiaojing@xxxxxxxxxx>
> Signed-off-by: Roger Lu <roger.lu@xxxxxxxxxxxx>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>

Applied, thanks!

> ---
>   drivers/soc/mediatek/mtk-svs.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/soc/mediatek/mtk-svs.c b/drivers/soc/mediatek/mtk-svs.c
> index 64d4d03ab71c..9575aa645643 100644
> --- a/drivers/soc/mediatek/mtk-svs.c
> +++ b/drivers/soc/mediatek/mtk-svs.c
> @@ -1324,7 +1324,7 @@ static int svs_init01(struct svs_platform *svsp)
>   				svsb->pm_runtime_enabled_count++;
>   			}
>   
> -			ret = pm_runtime_get_sync(svsb->opp_dev);
> +			ret = pm_runtime_resume_and_get(svsb->opp_dev);
>   			if (ret < 0) {
>   				dev_err(svsb->dev, "mtcmos on fail: %d\n", ret);
>   				goto svs_init01_resume_cpuidle;