Re: [PATCH v2 3/4] drm/msm/disp/dpu1: use atomic enable/disable callbacks for encoder functions

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On Mon, 21 Feb 2022 at 17:52, Vinod Polimera <quic_vpolimer@xxxxxxxxxxx> wrote:
>
> Use atomic variants for encoder callback functions such that
> certain states like self-refresh can be accessed as part of
> enable/disable sequence.
>
> Signed-off-by: Kalyan Thota <quic_kalyant@xxxxxxxxxxx>
> Signed-off-by: Vinod Polimera <quic_vpolimer@xxxxxxxxxxx>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>

>
> Changes in v2:
> - As per review suggestion by Dmitry.
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> index 1e648db..6eac417 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> @@ -1138,7 +1138,8 @@ void dpu_encoder_virt_runtime_resume(struct drm_encoder *drm_enc)
>         mutex_unlock(&dpu_enc->enc_lock);
>  }
>
> -static void dpu_encoder_virt_enable(struct drm_encoder *drm_enc)
> +static void dpu_encoder_virt_enable(struct drm_encoder *drm_enc,
> +                               struct drm_atomic_state *state)
>  {
>         struct dpu_encoder_virt *dpu_enc = NULL;
>         int ret = 0;
> @@ -1176,7 +1177,8 @@ static void dpu_encoder_virt_enable(struct drm_encoder *drm_enc)
>         mutex_unlock(&dpu_enc->enc_lock);
>  }
>
> -static void dpu_encoder_virt_disable(struct drm_encoder *drm_enc)
> +static void dpu_encoder_virt_disable(struct drm_encoder *drm_enc,
> +                               struct drm_atomic_state *state)
>  {
>         struct dpu_encoder_virt *dpu_enc = NULL;
>         struct msm_drm_private *priv;
> @@ -2094,8 +2096,8 @@ static void dpu_encoder_frame_done_timeout(struct timer_list *t)
>
>  static const struct drm_encoder_helper_funcs dpu_encoder_helper_funcs = {
>         .mode_set = dpu_encoder_virt_mode_set,
> -       .disable = dpu_encoder_virt_disable,
> -       .enable = dpu_encoder_virt_enable,
> +       .atomic_disable = dpu_encoder_virt_disable,
> +       .atomic_enable = dpu_encoder_virt_enable,
>         .atomic_check = dpu_encoder_virt_atomic_check,
>  };
>
> --
> 2.7.4
>


-- 
With best wishes
Dmitry



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