APPLIED [OEM-5.17] Re: [PATCH 0/1][SRU][Unstable/OEM-5.17] Boot stalled on AMD Rembrandt with PSR enabled panel

[Timo Aaltonen]

You-Sheng Yang kirjoitti 19.4.2022 klo 6.05:
> From: "You-Sheng Yang (vicamo)" <vicamo.yang at canonical.com>
> 
> BugLink: https://bugs.launchpad.net/bugs/1969407
> 
> [Impact]
> 
> On AMD Rembrandt platforms, DMCUB may hang upon a PSR set-version
> command is being sent with version equals to PSR_VERSION_UNSUPPORTED.
> 
> [Fix]
> 
> Upstream commit
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1210b17dd4ece454d68a9283f391e3b036aeb010
> fixed this issue.
> 
> [Test Case]
> 
> The symptom are below:
> 1. The boot process takes more longer than what we usually do
> 2. After the boot is completed, the touchpad/mouse is almost frozen
> 
> So apply the patch and observe if above is still reproducible.
> 
> [Where problems could occur]
> 
> Trivial fix.
> 
> [Other Info]
> 
> While this can only be reproduced on v5.17+, only unstable & oem-5.17
> are nominated for fix.
> 
> Nicholas Kazlauskas (1):
>    drm/amd/display: Only set PSR version when valid
> 
>   drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c | 4 ++++
>   1 file changed, 4 insertions(+)
> 

applied to oem-5.17, thanks

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