[PATCH v5] drm/amd/display: Revert W/A for hard hangs on DCN20/DCN21

[Limonciello, Mario]

[AMD Official Use Only]

> -----Original Message-----
> From: Bert Karwatzki <spasswolf at web.de>
> Sent: Tuesday, January 11, 2022 19:12
> To: amd-gfx at lists.freedesktop.org
> Cc: Limonciello, Mario <Mario.Limonciello at amd.com>; Kazlauskas, Nicholas
> <Nicholas.Kazlauskas at amd.com>; Zhuo, Qingqing (Lillian)
> <Qingqing.Zhuo at amd.com>; Scott Bruce <smbruce at gmail.com>; Chris Hixon
> <linux-kernel-bugs at hixontech.com>
> Subject: [PATCH v5] drm/amd/display: Revert W/A for hard hangs on
> DCN20/DCN21
> 
> I just tested patch v5 applied to amd-staging-drm-next (with HEAD
> 26c981e27e698c251ef3241f73ac846e66ad7fc3) and suspend and resume work
> fine. But as amd-staging-drm-next is still based on linux-5.13 I had to
> replace the mediatek wlan driver by the version from linux-5.16.

FYI it should likely cherry pick to 5.16 too if it's easier to test there.
I was able to cherry-pick to rc8 no problem.

If you can please try any display hotplugging to make sure hotplugs don’t
cause problems for you as well feel comfortable to add a Tested-by tag.

Thanks,