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From bbf673f918a152ebb3cfd541497908de2f631f91 Mon Sep 17 00:00:00 2001
From: Anthony Koo <Anthony.Koo@amd.com>
Date: Wed, 2 Dec 2015 13:55:16 -0500
Subject: [PATCH 0561/1110] drm/amd/dal: Fail validation if YCbCr 420 since
current HW does not support it
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
---
drivers/gpu/drm/amd/dal/dc/dce110/dce110_link_encoder.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/dal/dc/dce110/dce110_link_encoder.c b/drivers/gpu/drm/amd/dal/dc/dce110/dce110_link_encoder.c
index cd1924a..3e2ac27 100644
--- a/drivers/gpu/drm/amd/dal/dc/dce110/dce110_link_encoder.c
+++ b/drivers/gpu/drm/amd/dal/dc/dce110/dce110_link_encoder.c
@@ -1038,6 +1038,10 @@ static bool validate_hdmi_output(
PIXEL_ENCODING_RGB)
return false;
+ /* DCE11 HW does not support 420 */
+ if (crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
+ return false;
+
return true;
}
--
2.7.4
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