On Mon, Nov 15, 2021 at 09:36:55AM -0600, Mario Limonciello wrote:
commit 91adec9e0709 ("drm/amd/display: Look at firmware version to determine using dmub on dcn21")
Newer DMUB firmware on Renoir and Green Sardine do not need to disable dmcu and this actually causes problems with DP-C alt mode for a number of machines.
Backport the fix from this from hand modified backport because mainline switched to IP version checking which doesn't exist in linux-stable.
BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1772 BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1735 Signed-off-by: Mario Limonciello mario.limonciello@amd.com Reviewed-by: Alex Deucher alexander.deucher@amd.com
Changes from v1->v2:
- Update commit message syntax for hand modified commit
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
What tree(s) are you wanting this backported to?
thanks,
greg k-h