[PATCH 4/9] drm/amd/display: mpcc black color should not be impacted by pixel encoding format

Qingqing Zhuo qingqing.zhuo at amd.com
Wed Aug 5 17:40:53 UTC 2020


From: Xiaodong Yan <Xiaodong.Yan at amd.com>

[Why]
The format in MPCC should be 444

[How]
do not modify the mpcc black color according to pixel encoding format

Signed-off-by: Xiaodong Yan <Xiaodong.Yan at amd.com>
Reviewed-by: Eric Yang <eric.yang2 at amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index a643927e272b..57cd52789606 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -2368,14 +2368,6 @@ void dcn10_update_mpcc(struct dc *dc, struct pipe_ctx *pipe_ctx)
 				&blnd_cfg.black_color);
 	}
 
-	/*
-	 * The way 420 is packed, 2 channels carry Y component, 1 channel
-	 * alternate between Cb and Cr, so both channels need the pixel
-	 * value for Y
-	 */
-	if (pipe_ctx->stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR420)
-		blnd_cfg.black_color.color_r_cr = blnd_cfg.black_color.color_g_y;
-
 	if (per_pixel_alpha)
 		blnd_cfg.alpha_mode = MPCC_ALPHA_BLEND_MODE_PER_PIXEL_ALPHA;
 	else
-- 
2.17.1



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