On Wed, Nov 10, 2021 at 05:25:54PM -0600, Mario Limonciello wrote: > 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 mainline. It's a 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@xxxxxxx> > Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx> > --- > Resend, also pick up Alex's tag from last submission > This was previously sent to stable@xxxxxxxxxx not stable@xxxxxxxxxxxxxxx. > <formletter> This is not the correct way to submit patches for inclusion in the stable kernel tree. Please read: https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html for how to do this properly. </formletter>