linux/drivers/gpu
Fangzhi Zuo 1c3b4b2d87 drm/amd/display: HDMI remote sink need mode validation for Linux
[ Upstream commit 95d620adb4 ]

[Why]
Currently mode validation is bypassed if remote sink exists. That
leads to mode set issue when a BW bottle neck exists in the link path,
e.g., a DP-to-HDMI converter that only supports HDMI 1.4.

Any invalid mode passed to Linux user space will cause the modeset
failure due to limitation of Linux user space implementation.

[How]
Mode validation is skipped only if in edid override. For real remote
sink, clock limit check should be done for HDMI remote sink.

Have HDMI related remote sink going through mode validation to
elimiate modes which pixel clock exceeds BW limitation.

Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-05 11:08:43 +01:00
..
drm drm/amd/display: HDMI remote sink need mode validation for Linux 2020-11-05 11:08:43 +01:00
host1x gpu: host1x: debug: Fix multiple channels emitting messages simultaneously 2020-08-19 08:14:52 +02:00
ipu-v3 gpu: ipu-v3: image-convert: Combine rotate/no-rotate irq handlers 2020-08-21 11:05:35 +02:00
vga vga_switcheroo: Fix missing gpu_bound call at audio client registration 2018-11-13 11:09:00 -08:00
Makefile