This is a note to let you know that I've just added the patch titled
drm/msm/dpu: fix writeback programming for YUV cases
to the 6.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-msm-dpu-fix-writeback-programming-for-yuv-cases.patch
and it can be found in the queue-6.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit d6948a992fd29bf83c63531d6fd468619d3f8a27
Author: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
Date: Tue Dec 12 12:52:41 2023 -0800
drm/msm/dpu: fix writeback programming for YUV cases
[ Upstream commit 79caf2f2202b9eaad3a5a726e4b33807f67d0f1b ]
For YUV cases, setting the required format bits was missed
out in the register programming. Lets fix it now in preparation
of adding YUV formats support for writeback.
changes in v2:
- dropped the fixes tag as its not a fix but adding
new functionality
Signed-off-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Patchwork: https://patchwork.freedesktop.org/patch/571814/
Link: https://lore.kernel.org/r/20231212205254.12422-4-quic_abhinavk@xxxxxxxxxxx
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.c
index 9668fb97c047..d49b3ef7689e 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.c
@@ -87,6 +87,9 @@ static void dpu_hw_wb_setup_format(struct dpu_hw_wb *ctx,
dst_format |= BIT(14); /* DST_ALPHA_X */
}
+ if (DPU_FORMAT_IS_YUV(fmt))
+ dst_format |= BIT(15);
+
pattern = (fmt->element[3] << 24) |
(fmt->element[2] << 16) |
(fmt->element[1] << 8) |
