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authorHugo Hu <hugo.hu@amd.com>2017-12-07 10:33:22 +0300
committerAlex Deucher <alexander.deucher@amd.com>2017-12-20 22:47:25 +0300
commit4d2f22d141e14c3cbee013406823e1903cd2d42c (patch)
treed8571c038a900a3204f86e4faef733143bc974d1 /drivers/gpu/drm/amd/display
parent506ab334328e29f4e19ad93774e6503fd5632ef5 (diff)
downloadlinux-4d2f22d141e14c3cbee013406823e1903cd2d42c.tar.xz
drm/amd/display: Use the maximum link setting which EDP reported.
Signed-off-by: Hugo Hu <hugo.hu@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>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
-rw-r--r--drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index 00528b214a9f..61e8c3e02d16 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -1470,6 +1470,12 @@ void decide_link_settings(struct dc_stream_state *stream,
return;
}
+ /* EDP use the link cap setting */
+ if (stream->sink->sink_signal == SIGNAL_TYPE_EDP) {
+ *link_setting = link->verified_link_cap;
+ return;
+ }
+
/* search for the minimum link setting that:
* 1. is supported according to the link training result
* 2. could support the b/w requested by the timing