[v2][SRU][PATCH 0/2][J/OEM-5.17/K/U] Fix blank screen on Thinkpad ADL 4K+ panel

[Aaron Ma]

On 10/17/22 17:05, Kleber Souza wrote:
> On 10.09.22 02:16, Aaron Ma wrote:
>> BugLink: https://bugs.launchpad.net/bugs/1980621
>>
>> [Impact]
>> Set screen off on ThinkPad P1G5 with 4k+ panel.
>> The screen will never be back.
>>
>> [Fix]
>> Reload link rate as WA to fix the issue.
>>
>> [Test]
>> Verified on hardware, screen on/off 20 times OK.
>>
>> [Where problems could occur]
>> It may break DP output on Intel platform.
>>
>> Ville Syrjälä (2):
>>    drm/i915: Implement WaEdpLinkRateDataReload
>>    Revert "drm/i915/display: Re-add check for low voltage sku for max dp
>>      source rate"
>>
>>   drivers/gpu/drm/i915/display/intel_dp.c       | 32 ++-----------------
>>   .../drm/i915/display/intel_dp_link_training.c | 22 +++++++++++++
>>   2 files changed, 25 insertions(+), 29 deletions(-)
>>
>
> Hi Aaron,
>
> How about the revert of the backport of "73867c8709b5 drm/i915/display: Remove
> check for low voltage sku for max dp source rate" which was sent on V1, is
> the revert no needed anymore?

There are 3 commits in this story: remove -> re-add (revert remove) -> revert re-add.
The final goal is to make this "remove" patch happen
with the 1st patch which fix the regression of this "remove" patch.

Regards,
Aaron

>
>
> Thanks,
> Kleber