[PATCH 6.19 261/781] drm/msm/disp: set num_planes to 1 for interleaved YUV formats

Greg Kroah-Hartman
2026-02-25T01:32:32Z

From: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>

[ Upstream commit 6421e1c5075b7e1536a8fcbe6b4086db07103048 ]

Interleaved YUV formats use only one plane for all pixel data. Specify
num_planes = 1 for those formats. This was left unnoticed since
_dpu_format_populate_plane_sizes_linear() overrides layout->num_planes.

Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")
Reviewed-by: Jessica Zhang <jessica.zhang@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/688162/
Link: https://lore.kernel.org/r/20251114-dpu-formats-v3-1-cae312379d49@oss.qualcomm.com
Tested-by: Luca Weiss <luca.weiss@fairphone.com> # qcm6490-fairphone-fp5
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/msm/disp/mdp_format.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/mdp_format.c b/drivers/gpu/drm/msm/disp/mdp_format.c
index 426782d50cb49..eebedb1a2636e 100644
--- a/drivers/gpu/drm/msm/disp/mdp_format.c
+++ b/drivers/gpu/drm/msm/disp/mdp_format.c
@@ -479,25 +479,25 @@ static const struct msm_format mdp_formats[] = {
0, BPC8, BPC8, BPC8,
C2_R_Cr, C0_G_Y, C1_B_Cb, C0_G_Y,
false, CHROMA_H2V1, 4, 2, MSM_FORMAT_FLAG_YUV,
- MDP_FETCH_LINEAR, 2),
+ MDP_FETCH_LINEAR, 1),

INTERLEAVED_YUV_FMT(UYVY,
0, BPC8, BPC8, BPC8,
C1_B_Cb, C0_G_Y, C2_R_Cr, C0_G_Y,
false, CHROMA_H2V1, 4, 2, MSM_FORMAT_FLAG_YUV,
- MDP_FETCH_LINEAR, 2),
+ MDP_FETCH_LINEAR, 1),

INTERLEAVED_YUV_FMT(YUYV,
0, BPC8, BPC8, BPC8,
C0_G_Y, C1_B_Cb, C0_G_Y, C2_R_Cr,
false, CHROMA_H2V1, 4, 2, MSM_FORMAT_FLAG_YUV,
- MDP_FETCH_LINEAR, 2),
+ MDP_FETCH_LINEAR, 1),

INTERLEAVED_YUV_FMT(YVYU,
0, BPC8, BPC8, BPC8,
C0_G_Y, C2_R_Cr, C0_G_Y, C1_B_Cb,
false, CHROMA_H2V1, 4, 2, MSM_FORMAT_FLAG_YUV,
- MDP_FETCH_LINEAR, 2),
+ MDP_FETCH_LINEAR, 1),

/* 3 plane YUV */
PLANAR_YUV_FMT(YUV420,
--
2.51.0