linux-kernel - [PATCH v5 02/12] drm/msm/dpu: relax YUV requirements

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Message-Id: <20240627-dpu-virtual-wide-v5-2-5efb90cbb8be@linaro.org>
Date: Thu, 27 Jun 2024 00:45:56 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...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>, Daniel Vetter <daniel@...ll.ch>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
 freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH v5 02/12] drm/msm/dpu: relax YUV requirements

YUV formats require only CSC to be enabled. Even decimated formats
should not require scaler. Relax the requirement and don't check for the
scaler block while checking if YUV format can be enabled.

Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index 1c3a2657450c..148bd79bdcef 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -743,10 +743,9 @@ static int dpu_plane_atomic_check_pipe(struct dpu_plane *pdpu,
 	min_src_size = MSM_FORMAT_IS_YUV(fmt) ? 2 : 1;
 
 	if (MSM_FORMAT_IS_YUV(fmt) &&
-	    (!pipe->sspp->cap->sblk->scaler_blk.len ||
-	     !pipe->sspp->cap->sblk->csc_blk.len)) {
+	    !pipe->sspp->cap->sblk->csc_blk.len) {
 		DPU_DEBUG_PLANE(pdpu,
-				"plane doesn't have scaler/csc for yuv\n");
+				"plane doesn't have csc for yuv\n");
 		return -EINVAL;
 	}
 

-- 
2.39.2