Re: [PATCH] Revert "drm/msm/dp: Remove INIT_SETUP delay"

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Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx> writes:
>>>> There is no need to add the 100ms delay back yet.
>>>>
>>>> thanks for posting this but NAK on this patch till we post the fix this
>>>> week.
>>>>
>>>> Appreciate a bit of patience till then.
>>>
>>> This regression is already part of the 6.3 stable release series. Will
>>> the new patch qualify for inclusion in 6.3.y? Or will it be part of 6.4
>>> and this revert should go into 6.3.y?
>> 
>> This is a tough situation, as landing a revert will break x13s, as noted 
>> by Bjorn. Given that the workaround is known at this moment, I would 
>> like to wait for the patch from Abhinav to appear, then we can decide 
>> which of the fixes should go to the stable kernel.

I wasn't able to find new patches, though may have missed them. Is there
a decision yet how to proceed with this regression? 6.2 now being EOL
may make this a good moment to decide on the next steps.

>>> [  275.025497] [drm:dpu_encoder_phys_vid_wait_for_commit_done:488] 
>>> [dpu error]vblank timeout
>>> [  275.025514] [drm:dpu_kms_wait_for_commit_done:510] [dpu error]wait 
>>> for commit done returned -110
>>> [  275.064141] [drm:dpu_encoder_frame_done_timeout:2382] [dpu 
>>> error]enc33 frame done timeout
>
> This is a different crash but the root-cause of both the issues is the 
> bridge hpd_enable/disable series.
>
> https://patchwork.freedesktop.org/patch/514414/
>
> This is breaking the sequence and logic of internal hpd as per my 
> discussion with kuogee.
>
> We are analyzing the issue and the fix internally first and once we 
> figure out all the details will post it.

Thank you!




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