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| author | Aaron Ma <aaron.ma@canonical.com> | 2020-07-08 04:16:22 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-07-09 14:42:37 -0400 |
| commit | 3b2e973dff59d88bee1d814ddf8762a24fc02b60 (patch) | |
| tree | d431bfa4430bae2fa5dfddc681275bf709b76476 /drivers/gpu/drm | |
| parent | c564b8601ae917086751d90f464d5f19d731ece7 (diff) | |
| download | linux-3b2e973dff59d88bee1d814ddf8762a24fc02b60.tar.gz linux-3b2e973dff59d88bee1d814ddf8762a24fc02b60.tar.bz2 linux-3b2e973dff59d88bee1d814ddf8762a24fc02b60.zip | |
drm/amd/display: add dmcub check on RENOIR
RENOIR loads dmub fw not dmcu, check dmcu only will prevent loading iram,
it breaks backlight control.
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=208277
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 10ac8076d4f2..db5e0bb0d935 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1358,7 +1358,7 @@ static int dm_late_init(void *handle) struct dmcu *dmcu = NULL; bool ret; - if (!adev->dm.fw_dmcu) + if (!adev->dm.fw_dmcu && !adev->dm.dmub_fw) return detect_mst_link_for_all_connectors(adev->ddev); dmcu = adev->dm.dc->res_pool->dmcu; |