[PATCH 04/11] drm/msm/dpu: allow using lm mixer base stage

[Arnaud Vrac]

The dpu backend already handles applying alpha to the base stage, so we
can use it to render the bottom plane in all cases. This allows mixing
one additional plane with the hardware mixer.

Signed-off-by: Arnaud Vrac <avrac at freebox.fr>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index 14b5cfe306113..148921ed62f85 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -881,7 +881,7 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
 	r_pipe->multirect_mode = DPU_SSPP_MULTIRECT_NONE;
 	r_pipe->sspp = NULL;
 
-	pstate->stage = DPU_STAGE_0 + pstate->base.normalized_zpos;
+	pstate->stage = DPU_STAGE_BASE + pstate->base.normalized_zpos;
 	if (pstate->stage >= pdpu->catalog->caps->max_mixer_blendstages) {
 		DPU_ERROR("> %d plane stages assigned\n",
 			  pdpu->catalog->caps->max_mixer_blendstages - DPU_STAGE_0);

-- 
2.40.0