Re: [PATCH 2/2] drm/msm/dpu: Wire up needs_dirtyfb

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On Sat, May 8, 2021 at 12:53 PM Rob Clark <robdclark@xxxxxxxxx> wrote:
>
> From: Rob Clark <robdclark@xxxxxxxxxxxx>
>
> Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>

>From Ryan (sending this for him because mailing list workflow is lame):

I have tested this on my end and it resolves the 120hz problem.

Tested-By: Ryan Houdek <Houdek.Ryan@xxxxxxxxxxx>

> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> index 5a74f93e29da..868ee6136438 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> @@ -143,6 +143,19 @@ static bool dpu_crtc_get_scanout_position(struct drm_crtc *crtc,
>         return true;
>  }
>
> +static bool dpu_crtc_needs_dirtyfb(struct drm_crtc *crtc)
> +{
> +       struct drm_encoder *encoder;
> +
> +       drm_for_each_encoder_mask (encoder, crtc->dev, crtc->state->encoder_mask) {
> +               if (dpu_encoder_get_intf_mode(encoder) == INTF_MODE_CMD) {
> +                       return true;
> +               }
> +       }
> +
> +       return false;
> +}
> +
>  static void _dpu_crtc_setup_blend_cfg(struct dpu_crtc_mixer *mixer,
>                 struct dpu_plane_state *pstate, struct dpu_format *format)
>  {
> @@ -1343,6 +1356,7 @@ static const struct drm_crtc_helper_funcs dpu_crtc_helper_funcs = {
>         .atomic_begin = dpu_crtc_atomic_begin,
>         .atomic_flush = dpu_crtc_atomic_flush,
>         .get_scanout_position = dpu_crtc_get_scanout_position,
> +       .needs_dirtyfb = dpu_crtc_needs_dirtyfb,
>  };
>
>  /* initialize crtc */
> --
> 2.30.2
>



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