[PATCH] drm/msm/dpu: Fix for non-visible planes

[Abhinav Kumar]

On 7/7/2022 2:20 PM, Rob Clark wrote:
> From: Rob Clark <robdclark at chromium.org>
> 
> Fixes `kms_cursor_crc --run-subtest cursor-offscreen`.. when the cursor
> moves offscreen the plane becomes non-visible, so we need to skip over
> it in crtc atomic test and mixer setup.
> 
> Signed-off-by: Rob Clark <robdclark at chromium.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk at quicinc.com>

Will pick up the fixes tag from Dmitry's r-b.
> ---
>   drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 6 ++++++
>   1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> index 4dd0ce09ca74..4ba000951a90 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> @@ -422,6 +422,9 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc,
>   		if (!state)
>   			continue;
>   
> +		if (!state->visible)
> +			continue;
> +
>   		pstate = to_dpu_plane_state(state);
>   		fb = state->fb;
>   
> @@ -1195,6 +1198,9 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
>   		if (cnt >= DPU_STAGE_MAX * 4)
>   			continue;
>   
> +		if (!pstate->visible)
> +			continue;
> +
>   		pstates[cnt].dpu_pstate = dpu_pstate;
>   		pstates[cnt].drm_pstate = pstate;
>   		pstates[cnt].stage = pstate->normalized_zpos;