Hi,
21. 5. 20. 오후 10:36에 Tian Tao 이(가) 쓴 글:
> use pm_runtime_resume_and_get() to replace pm_runtime_get_sync and
> pm_runtime_put_noidle. it also avoids the problem of positive return
> values so we can change if (ret < 0) to if (ret).
Could you tell me why did you change the condition? pm_runtime_resume_and_get() can return only 0 or negative value.
So I think you don't have to change the condition. Could you drop this description?
>
> Signed-off-by: Tian Tao <tiantao6@xxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/exynos/exynos_drm_mic.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_mic.c b/drivers/gpu/drm/exynos/exynos_drm_mic.c
> index 3821ea7..6d94eae 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_mic.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_mic.c
> @@ -268,11 +268,9 @@ static void mic_pre_enable(struct drm_bridge *bridge)
> if (mic->enabled)
> goto unlock;
>
> - ret = pm_runtime_get_sync(mic->dev);
> - if (ret < 0) {
> - pm_runtime_put_noidle(mic->dev);
> + ret = pm_runtime_resume_and_get(mic->dev);
Right, we can use pm_runtime_resume_and_get function because pm_runtime_resume_and_get function does exactly same thing as existing code does.
> + if (ret)
Seems unnecessary change.
Thanks,
Inki Dae
> goto unlock;
> - }
>
> mic_set_path(mic, 1);
>
>
