diff options
| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2020-01-13 09:00:46 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-01-22 16:55:28 -0500 |
| commit | e5f0b5214beea71bd25584da451897300742795e (patch) | |
| tree | 908340e059f84b086067f091644a5906d539ae71 /drivers/gpu/drm/amd/display | |
| parent | a7da96fbccc682a67bcc15f3461cdd60a622ffaf (diff) | |
drm/amd/display: Check hw_init state when determining if DMCUB is initialized
[Why]
CW2 may already be programmed when coming back from S4. In this case
we want to unconditionally replace whatever DMCUB version is currently
enabled with the latest.
[How]
Check the hw_init flag to know whether or not we've previously executed
the initliazed routine.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c index ea99d4cf34cc..85a518bf8a76 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c @@ -312,6 +312,9 @@ enum dmub_status dmub_srv_is_hw_init(struct dmub_srv *dmub, bool *is_hw_init) if (!dmub->sw_init) return DMUB_STATUS_INVALID; + if (!dmub->hw_init) + return DMUB_STATUS_OK; + if (dmub->hw_funcs.is_hw_init) *is_hw_init = dmub->hw_funcs.is_hw_init(dmub); |