diff options
| author | Roman Li <Roman.Li@amd.com> | 2021-10-15 13:16:31 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-10-19 17:17:02 -0400 |
| commit | 652de07addd2c40684fbf3a91c5b335709a585ca (patch) | |
| tree | d9cd137a27b63e44d12e85f7e926259bb82b7535 /drivers/gpu/drm | |
| parent | a3848df60b0606da8a12f34d34eef5183b07fc38 (diff) | |
| download | linux-652de07addd2c40684fbf3a91c5b335709a585ca.tar.bz2 | |
drm/amd/display: Fully switch to dmub for all dcn21 asics
[Why]
On renoir usb-c port stops functioning on resume after f/w update.
New dmub firmware caused regression due to conflict with dmcu.
With new dmub f/w dmcu is superseded and should be disabled.
[How]
- Disable dmcu for all dcn21.
Check dmesg for dmub f/w version.
The old firmware (before regression):
[drm] DMUB hardware initialized: version=0x00000001
All other versions require this patch for renoir.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1735
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Tested-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Roman Li <Roman.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 |
1 files changed, 1 insertions, 2 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 20065a145851..a0fd497515d0 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1356,8 +1356,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) switch (adev->ip_versions[DCE_HWIP][0]) { case IP_VERSION(2, 1, 0): init_data.flags.gpu_vm_support = true; - if (ASICREV_IS_GREEN_SARDINE(adev->external_rev_id)) - init_data.flags.disable_dmcu = true; + init_data.flags.disable_dmcu = true; break; case IP_VERSION(1, 0, 0): case IP_VERSION(1, 0, 1): |