Messages in this thread Patch in this message | | | From | Aaron Ma <> | Subject | [PATCH] drm/amd/display: add dmcub check on RENOIR | Date | Wed, 8 Jul 2020 04:16:22 -0400 |
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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 Signed-off-by: Aaron Ma <aaron.ma@canonical.com> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
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; -- 2.25.1
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