diff mbox series

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

Message ID 20230111074528.29354-5-roger.lu@mediatek.com (mailing list archive)
State New, archived
Headers show
Series Enahance SVS's robustness | expand

Commit Message

Roger Lu Jan. 11, 2023, 7:45 a.m. UTC 
From: Shang XiaoJing <shangxiaojing@huawei.com>

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@huawei.com>
Signed-off-by: Roger Lu <roger.lu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/soc/mediatek/mtk-svs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Matthias Brugger Jan. 31, 2023, 1:23 p.m. UTC | #1 
On 11/01/2023 08:45, Roger Lu wrote:
> From: Shang XiaoJing <shangxiaojing@huawei.com>
> 
> 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@huawei.com>
> Signed-off-by: Roger Lu <roger.lu@mediatek.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

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;
diff mbox series

Patch

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;