Nicholas Kazlauskas f638d7505f drm/amd/display: Fix deadlock when falling back to v2 from v3 ...

[Why]
A deadlock in the kernel occurs when we fallback from the V3 to V2
add_topology_to_display or remove_topology_to_display because they
both try to acquire the dtm_mutex but recursive locking isn't
supported on mutex_lock().

[How]
Make the mutex_lock/unlock more fine grained and move them up such that
they're only required for the psp invocation itself.

Fixes: bf62221e9d ("drm/amd/display: Add DCN3.1 HDCP support")

Signed-off-by: Nicholas Kazlauskas <[email protected]>
Reviewed-by: Aric Cyr <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

2021-10-28 14:26:51 -04:00

..

color

drm/amd/display: Revert adding degamma coefficients

2021-09-14 15:57:10 -04:00

freesync

drm/amd/display: Get ceiling for v_total calc

2021-10-28 14:26:14 -04:00

hdcp

drm/amd/display: Fix deadlock when falling back to v2 from v3

2021-10-28 14:26:51 -04:00

inc

drm/amd/display: Add support for USB4 on C20 PHY for DCN3.1

2021-10-28 14:26:14 -04:00

info_packet

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power

drm/amd/display: tune backlight ramping profiles

2021-06-15 17:25:40 -04:00

vmid

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