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From b34c23d1710f20f7d95a1800d711a715914ab414 Mon Sep 17 00:00:00 2001
From: Charlene Liu <charlene.liu@amd.com>
Date: Sun, 23 Jul 2017 16:45:45 -0400
Subject: [PATCH 0655/4131] drm/amd/display: fix YCbCr420 deep color mode not
supported
Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
index a1eabc4..17b2828 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
@@ -858,6 +858,8 @@ bool dcn_validate_bandwidth(
- pipe->stream->public.timing.v_front_porch;
v->vactive[input_idx] = pipe->stream->public.timing.v_addressable;
v->pixel_clock[input_idx] = pipe->stream->public.timing.pix_clk_khz / 1000.0f;
+ if (pipe->stream->public.timing.pixel_encoding == PIXEL_ENCODING_YCBCR420)
+ v->pixel_clock[input_idx] /= 2;
if (!pipe->surface){
--
2.7.4
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