[PATCH] drm/msm/dpu: Reapply CTM if modeset is needed

[Dmitry Baryshkov]

On Wed, 18 Jan 2023 at 04:14, Jessica Zhang <quic_jesszhan at quicinc.com> wrote:
>
> Add a !drm_atomic_crtc_needs_modeset() check to
> _dpu_crtc_setup_cp_blocks() so that CTM is reapplied after a
> suspend/resume.

.. or if the LM/DSPP blocks were reallocated by resource allocation
during the modeset.

>
> Closes: https://gitlab.freedesktop.org/drm/msm/-/issues/23
> Signed-off-by: Jessica Zhang <quic_jesszhan at quicinc.com>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> index 13ce321283ff..aa120a230222 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> @@ -748,7 +748,7 @@ static void _dpu_crtc_setup_cp_blocks(struct drm_crtc *crtc)
>         int i;
>
>
> -       if (!state->color_mgmt_changed)
> +       if (!state->color_mgmt_changed && !drm_atomic_crtc_needs_modeset(state))
>                 return;
>
>         for (i = 0; i < cstate->num_mixers; i++) {
> --
> 2.39.0
>


-- 
With best wishes
Dmitry