linux-kernel - [PATCH v2] drm/msm/dpu: correct LM pairing for SM6150

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Message-Id: <20241217-dpu-fix-sm6150-v2-1-9acc8f5addf3@linaro.org>
Date: Tue, 17 Dec 2024 14:35:40 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Rob Clark <robdclark@...il.com>, 
 Abhinav Kumar <quic_abhinavk@...cinc.com>, Sean Paul <sean@...rly.run>, 
 Marijn Suijten <marijn.suijten@...ainline.org>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>
Cc: Li Liu <quic_lliu6@...cinc.com>, Fange Zhang <quic_fangez@...cinc.com>, 
 linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
 freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] drm/msm/dpu: correct LM pairing for SM6150

The SM6150 platform doesn't have 3DMux (MERGE_3D) block, so it can not
split the screen between two LMs. Drop lm_pair fields as they don't make
sense for this platform.

Suggested-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
Fixes: cb2f9144693b ("drm/msm/dpu: Add SM6150 support")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
Changes in v2:
- Dropped lm_pair field as recommended by Abhinav.
- Link to v1: https://lore.kernel.org/r/20241216-dpu-fix-sm6150-v1-1-9fd7ce2ff606@linaro.org
---
 drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_3_sm6150.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_3_sm6150.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_3_sm6150.h
index 621a2140f675fa28b3a7fcd8573e59b306cd6832..d761ed705bac30d9ffef3c0c9140e5e8a5e930ad 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_3_sm6150.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_3_sm6150.h
@@ -116,14 +116,12 @@ static const struct dpu_lm_cfg sm6150_lm[] = {
 		.sblk = &sdm845_lm_sblk,
 		.pingpong = PINGPONG_0,
 		.dspp = DSPP_0,
-		.lm_pair = LM_1,
 	}, {
 		.name = "lm_1", .id = LM_1,
 		.base = 0x45000, .len = 0x320,
 		.features = MIXER_QCM2290_MASK,
 		.sblk = &sdm845_lm_sblk,
 		.pingpong = PINGPONG_1,
-		.lm_pair = LM_0,
 	}, {
 		.name = "lm_2", .id = LM_2,
 		.base = 0x46000, .len = 0x320,

---
base-commit: a3d570eace66b4016f2692a6f1045742ee70c6b1
change-id: 20241216-dpu-fix-sm6150-17f0739f8fe0

Best regards,
-- 
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>