YUV formats on this hardware needs scaling for chroma planes. However it
is not implemented for QSEED2 which breaks display pipeline if YUV format
is used (causing partial and corrupted output with PPDONE timeouts).
This patch temporarily disables YUV by switching affected sub-block to
RGB only format list.

Fixes: daf9a92daeb8 ("drm/msm/dpu: Add support for MSM8996")
Signed-off-by: Vladimir Lypak <vladimir.lypak@gmail.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
index 6641455c4ec6a2d082644f1488ea5f5605ccc208..9f8d1bba9139a7e09ee321cf1b6f30f96890918f 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
@@ -267,8 +267,8 @@ static const u32 wb2_formats_rgb_yuv[] = {
 		.base = 0x200, .len = 0xa0,}, \
 	.csc_blk = {.name = "csc", \
 		.base = 0x320, .len = 0x100,}, \
-	.format_list = plane_formats_yuv, \
-	.num_formats = ARRAY_SIZE(plane_formats_yuv), \
+	.format_list = plane_formats, \
+	.num_formats = ARRAY_SIZE(plane_formats), \
 	.rotation_cfg = NULL, \
 	}
 

-- 
2.51.0

On Sat, Oct 18, 2025 at 02:33:43PM +0000, Vladimir Lypak wrote:
> YUV formats on this hardware needs scaling for chroma planes. However it
> is not implemented for QSEED2 which breaks display pipeline if YUV format
> is used (causing partial and corrupted output with PPDONE timeouts).
> This patch temporarily disables YUV by switching affected sub-block to
> RGB only format list.
> 
> Fixes: daf9a92daeb8 ("drm/msm/dpu: Add support for MSM8996")
> Signed-off-by: Vladimir Lypak <vladimir.lypak@gmail.com>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>


-- 
With best wishes
Dmitry

On Sat, Oct 18, 2025 at 02:33:43PM +0000, Vladimir Lypak wrote:
> YUV formats on this hardware needs scaling for chroma planes. However it
> is not implemented for QSEED2 which breaks display pipeline if YUV format
> is used (causing partial and corrupted output with PPDONE timeouts).
> This patch temporarily disables YUV by switching affected sub-block to
> RGB only format list.
> 
> Fixes: daf9a92daeb8 ("drm/msm/dpu: Add support for MSM8996")
> Signed-off-by: Vladimir Lypak <vladimir.lypak@gmail.com>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 

Does it apply to all QSEED2 platforms or just some of them?

-- 
With best wishes
Dmitry