diff options
| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2020-12-15 09:19:20 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-01-20 16:38:19 -0500 |
| commit | eee9647490b6129a632058aa8c4be503443650f3 (patch) | |
| tree | 1a7f933404bc8bcd0f92799b970dc97cb99949c5 /drivers/gpu/drm/amd/display/dmub/src | |
| parent | a0ffc3fd67e72bf5f1d4369a9b7448653127590c (diff) | |
| download | linux-eee9647490b6129a632058aa8c4be503443650f3.tar.gz linux-eee9647490b6129a632058aa8c4be503443650f3.tar.bz2 linux-eee9647490b6129a632058aa8c4be503443650f3.zip | |
drm/amd/display: Allow dmub srv hardware reset before HW init
[Why]
We need hardware reset before hardware init for backdoor loading when
we're reusing the framebuffer memory.
[How]
This doesn't run if the hardware isn't already in reset from software
perspective. The reset function has register level checks so just
remove the software one here.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Anson Jacob <anson.jacob@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/src')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c | 3 |
1 files changed, 0 insertions, 3 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 f388d36af0b6..d2588b7cd325 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c @@ -489,9 +489,6 @@ enum dmub_status dmub_srv_hw_reset(struct dmub_srv *dmub) if (!dmub->sw_init) return DMUB_STATUS_INVALID; - if (dmub->hw_init == false) - return DMUB_STATUS_OK; - if (dmub->hw_funcs.reset) dmub->hw_funcs.reset(dmub); |