diff options
| author |   Jun Lei <jun.lei@amd.com> | 2020-11-24 11:58:19 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2021-01-13 23:43:56 -0500 |
| commit | cf3a2627597794797ce5930537c0e75df284b6e9 (patch) | |
| tree | e6b845ce7247f6f3e5142b195935d7182239f812 /drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h | |
| parent | drm/amd/display: Remove unused P010 debug flag (diff) | |
| download | wireguard-linux-cf3a2627597794797ce5930537c0e75df284b6e9.tar.xz wireguard-linux-cf3a2627597794797ce5930537c0e75df284b6e9.zip | |
drm/amd/display: implement T12 compliance
[why]
When OS reboots, and panel is turned off, T12 may not be maintained.
T12 is defined as the interval between VDDC off (occurs at shutdown) and
the next VDDC on (occurs when eDP is POST-ed)
[how]
DC already tracks panel power off time. Add a DC interface which DM can
call during shutdown. Ideally this should be as late as possible during
the shutdown sequence so the extra delay is minimal.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Jun Lei <jun.lei@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h index e5691e499023..dee8ad1ebaa4 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h @@ -163,6 +163,8 @@ void dcn10_wait_for_mpcc_disconnect( void dce110_edp_backlight_control( struct dc_link *link, bool enable); +void dce110_edp_wait_for_T12( + struct dc_link *link); void dce110_edp_power_control( struct dc_link *link, bool power_up); |