linux/drivers/gpu/drm/amd
Michael Strauss daa9692db9 drm/amd/display: Add delay after h' watchdog timeout event
[WHY]
Some monitors trigger HDCP2.x timeout after reinitializing (e.g. toggling HDR)
by taking longer than expected to return h' (h prime)
Previously the 200ms watchdog timer retry count would hit
MAX_NUM_OF_ATTEMPTS (4), causing fallback to HDCP1.x

[HOW]
Adding a 1s delay after an h' watchdog timeout provides enough time
for affected monitors to return h' in time without hitting MAX_NUM_OF_ATTEMPTS

Signed-off-by: Michael Strauss <michael.strauss@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-07 12:13:35 -05:00
..
acp drm/amdgpu: fix license on Kconfig and Makefiles 2019-12-11 15:22:08 -05:00
amdgpu Revert "drm/amdgpu: Set no-retry as default." 2020-01-07 12:04:02 -05:00
amdkfd drm/amdkfd: Avoid hanging hardware in stop_cpsch 2020-01-07 11:55:04 -05:00
display drm/amd/display: Add delay after h' watchdog timeout event 2020-01-07 12:13:35 -05:00
include drm/amdgpu: update the method to get fb_loc of memory training(V4) 2019-12-23 14:59:20 -05:00
powerplay drm/amd/powerplay: cleanup the interfaces for powergate setting through SMU 2020-01-07 12:01:54 -05:00