ACK/Cmnt: [SRU] [K/L/Unstable/OEM-6.1] [PATCH 0/1] Fix SHP 5457 panel flicker when PSR2 sel fetch is enabled

[Stefan Bader]

On 24.02.23 17:18, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/2007516
> 
> [Impact]
> Panel SHP 5457 which can be found on XPS 9320 flickers when PSR2 sel
> fetch is enabled.
> 
> [Fix]
> Disable PSR2 sel fetch as temporary workaround.
> 
> [Test]
> PSR1 is enabled instead of PSR2. No more flicker can be observed.
> 
> [Where problems could occur]
> PSR is capricious, maybe PSR1 isn't enough for some unknown corner case.
> 
> Kai-Heng Feng (1):
>    UBUNTU: SAUCE: drm/i915/display/psr: Disable PSR2 sel fetch on panel
>      SHP 5457
> 
>   drivers/gpu/drm/i915/display/intel_dp.c  |  2 +-
>   drivers/gpu/drm/i915/display/intel_dp.h  |  2 ++
>   drivers/gpu/drm/i915/display/intel_psr.c | 19 +++++++++++++++++++
>   3 files changed, 22 insertions(+), 1 deletion(-)
> 

Appears to selectively adjust things just for the 3 panels we believe 
are broken. But should be marked as "UBUNTU: SAUCE:" when applying.

Acked-by: Stefan Bader <stefan.bader at canonical.com>

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