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authorMichael Strauss <[email protected]>2019-09-23 08:47:47 -0400
committerAlex Deucher <[email protected]>2020-01-07 12:13:35 -0500
commitdaa9692db988afad0c124acf77a7cc08cccd844b (patch)
treef4e6cb8b5f8981c597810145df20cdfd5351b571 /drivers/gpu/drm/i915/display/intel_dp_mst.c
parent454425e8f919d9373b7db431552c0860c156e2cd (diff)
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 <[email protected]> Reviewed-by: Wenjing Liu <[email protected]> Acked-by: Harry Wentland <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
0 files changed, 0 insertions, 0 deletions