blob: eb1f1440c728b073c8c7ecace33cc586ed3e417e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
From 35024217fc7222f67364cb82ab5847115afd19de Mon Sep 17 00:00:00 2001
From: Eric Yang <Eric.Yang2@amd.com>
Date: Fri, 14 Sep 2018 13:53:14 -0400
Subject: [PATCH 5491/5725] drm/amd/display: block DP YCbCr420 modes
[why]
Currently not supported, will black screen when set.
[How]
Fail validate timing helper for those modes.
Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
---
drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c | 3 +++
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c | 3 +++
2 files changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
index 4942590..70eb9472 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
@@ -662,6 +662,9 @@ bool dce110_link_encoder_validate_dp_output(
const struct dce110_link_encoder *enc110,
const struct dc_crtc_timing *crtc_timing)
{
+ if (crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
+ return false;
+
/* default RGB only */
if (crtc_timing->pixel_encoding == PIXEL_ENCODING_RGB)
return true;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c
index 6f67520..bef0011 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c
@@ -606,6 +606,9 @@ bool dcn10_link_encoder_validate_dp_output(
const struct dcn10_link_encoder *enc10,
const struct dc_crtc_timing *crtc_timing)
{
+ if (crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
+ return false;
+
/* default RGB only */
if (crtc_timing->pixel_encoding == PIXEL_ENCODING_RGB)
return true;
--
2.7.4
|
