shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-05 10:31:46 +09:00
Code Issues Packages Projects Releases Wiki Activity

drm/amd/display: validate extended dongle caps

Browse Source 
[ Upstream commit 99b922f9ed ]

[why]
Some dongle doesn't have a valid extended dongle caps,
but we still set the extended dongle caps to be valid.
This causes validation fails for all timing.

[how]
If no dp_hdmi_max_pixel_clk is provided,
don't use extended dongle caps.

Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Abdoulaye Berthe <Abdoulaye.Berthe@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Wenjing Liu
2018-12-05 12:14:45 -05:00
committed by Greg Kroah-Hartman
parent bd9218ab04
commit 8f0132db09
1 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
View File

@@ -2240,7 +2240,8 @@ static void get_active_converter_info(
translate_dpcd_max_bpc(
hdmi_color_caps.bits.MAX_BITS_PER_COLOR_COMPONENT);
link->dpcd_caps.dongle_caps.extendedCapValid = true;
if (link->dpcd_caps.dongle_caps.dp_hdmi_max_pixel_clk != 0)
link->dpcd_caps.dongle_caps.extendedCapValid = true;
}
break;