APPLIED: [SRU] [J] [PATCH 0/2] Fix AMDGPU blank screen when Type-C DP alt is in use

[Stefan Bader]

On 28.06.22 09:42, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1980060
> 
> [Impact]
> When Type-C DP/HDMI is in use, s0ix resume renders both eDP and DP
> outputs blank.
> 
> [Fix]
> Query the firmware to ensure the DP alt status.
> 
> [Test]
> Suspend and resume the system, both eDP and Type-C DP/HDMI are working.
> 
> [Where problems could occur]
> This fix only applies to certain AMD GFX with certain firmware version,
> so the scope is very limited.
> 
> Nicholas Kazlauskas (2):
>    drm/amd/display: Query DMCUB for dp alt status
>    drm/amd/display: Add version check before using DP alt query interface
> 
>   .../display/dc/dcn31/dcn31_dio_link_encoder.c | 161 ++++++++++++++----
>   .../gpu/drm/amd/display/dmub/inc/dmub_cmd.h   |  29 ++++
>   2 files changed, 157 insertions(+), 33 deletions(-)
> 

Applied to jammy:linux/master-next. Thanks.

-Stefan

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