diff options
| author | Sung Lee <sung.lee@amd.com> | 2020-06-25 13:49:31 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-07-14 14:34:02 -0400 |
| commit | ca751df231d14fd2bd1f8ee700d6a16cc541706a (patch) | |
| tree | 158127233f18f30d79dfc0e08d2d6eb8e5f8d5f8 /drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c | |
| parent | eaa483642f63cff60139bfdfb7fc971b3789bcaf (diff) | |
| download | linux-stable-ca751df231d14fd2bd1f8ee700d6a16cc541706a.tar.gz linux-stable-ca751df231d14fd2bd1f8ee700d6a16cc541706a.tar.bz2 linux-stable-ca751df231d14fd2bd1f8ee700d6a16cc541706a.zip | |
drm/amd/display: Power down hardware if set mode is not called before timeout
[WHY]
In headless systems, if set mode is not called, hardware will not be
powered down on boot, causing HW/SW discrepancies. Powering down
hardware on boot will ensure SW state is accurate.
[HOW]
Set a timer callback on boot for 10 seconds. If set mode is not called
within that time, power down hardware. Otherwise, do not power down.
Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@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/dcn20/dcn20_init.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c index bb9e9bec2f28..2380392b916e 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c @@ -30,6 +30,7 @@ static const struct hw_sequencer_funcs dcn20_funcs = { .program_gamut_remap = dcn10_program_gamut_remap, .init_hw = dcn10_init_hw, + .power_down_on_boot = dcn10_power_down_on_boot, .apply_ctx_to_hw = dce110_apply_ctx_to_hw, .apply_ctx_for_surface = NULL, .program_front_end_for_ctx = dcn20_program_front_end_for_ctx, |