diff options
| author | Martin Leung <martin.leung@amd.com> | 2021-02-20 01:40:09 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-03-24 06:02:11 +0300 |
| commit | d3cf9fa6baced06fce3cfb100258c0dcb9fb1305 (patch) | |
| tree | ec00da67e75ddecb5d874e99cb2dc0ffe9a895c8 /drivers/gpu/drm/amd/display/dc | |
| parent | ffe5650af0a140c0b3bf16f0d196c356fc849b3e (diff) | |
| download | linux-d3cf9fa6baced06fce3cfb100258c0dcb9fb1305.tar.xz | |
drm/amd/display: Skip powerstate DC hw access if virtual dal
[Why]
On baco-enabled systems running virtual dal, can get set power
state when hw is not initialized
[How]
Skip DC hw part of setPowerState when hw not available
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Martin Leung <martin.leung@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 86de6eed8450..3dc49964ea7f 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -2969,6 +2969,9 @@ void dc_set_power_state( struct kref refcount; struct display_mode_lib *dml; + if (!dc->current_state) + return; + switch (power_state) { case DC_ACPI_CM_POWER_STATE_D0: dc_resource_state_construct(dc, dc->current_state); |