linux/drivers/gpu/drm/amd/display
Duncan Ma 5e8a0d3598 drm/amd/display: Negate IPS allow and commit bits
[WHY]
On s0i3, IPS mask isn't saved and restored.
It is reset to zero on exit.

If it is cleared unexpectedly, driver will
proceed operations while DCN is in IPS2 and
cause a hang.

[HOW]
Negate the bit logic. Default value of
zero indicates it is still in IPS2. Driver
must poll for the bit to assert.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Duncan Ma <duncan.ma@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:53:10 -05:00
..
amdgpu_dm drm/amd/display: Enable fast plane updates on DCN3.2 and above 2023-11-17 00:50:57 -05:00
dc drm/amd/display: Negate IPS allow and commit bits 2023-11-17 00:53:10 -05:00
dmub drm/amd/display: Guard against invalid RPTR/WPTR being set 2023-11-17 00:46:01 -05:00
include drm/amd/display: Revert "drm/amd/display: allow edp updates for virtual signal" 2023-10-26 18:58:14 -04:00
modules drm/amd/display: VSIF v3 set Max Refresh Rate 2023-10-09 16:53:02 -04:00
Kconfig drm/amd/display: Allow building DC with clang on RISC-V 2023-07-21 16:52:25 -04:00
Makefile drm/amd/display: Refactor HWSS into component folder 2023-10-09 17:00:09 -04:00
TODO