linux-kernel - [PATCH v4 15/16] drm/msm/dpu: Disable SSPP multi-rect mode for every pair

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Message-Id: <20250116-sm8650-v6-13-hmd-deckard-mdss-quad-upstream-33-v4-15-74749c6eba33@linaro.org>
Date: Thu, 16 Jan 2025 15:26:04 +0800
From: Jun Nie <jun.nie@...aro.org>
To: Rob Clark <robdclark@...il.com>, 
 Abhinav Kumar <quic_abhinavk@...cinc.com>, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, Sean Paul <sean@...rly.run>, 
 Marijn Suijten <marijn.suijten@...ainline.org>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
 freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 Jun Nie <jun.nie@...aro.org>
Subject: [PATCH v4 15/16] drm/msm/dpu: Disable SSPP multi-rect mode for
 every pair

Currently, 2 pipes are supported at most. It is enough to check id to
know which pipe is in multi-rect mode and disable it. Multiple pairs
are used and need to check multirect_index to decide what pipes are in
multi-rect mode to disable them.

Signed-off-by: Jun Nie <jun.nie@...aro.org>
---
 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 d96f4405a4c26..d2e0fcfbc30cd 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -1480,7 +1480,7 @@ static void _dpu_plane_atomic_disable(struct drm_plane *plane)
 		 * clear multirect for the right pipe so that the SSPP
 		 * can be further reused in the solo mode
 		 */
-		if (pipe->sspp && i == 1) {
+		if (pipe->sspp && pipe->multirect_index == DPU_SSPP_RECT_1) {
 			pipe->multirect_index = DPU_SSPP_RECT_SOLO;
 			pipe->multirect_mode = DPU_SSPP_MULTIRECT_NONE;
 

-- 
2.34.1