[Intel-gfx] [PATCH v2] drm/i915/display/lspcon: Increase LSPCON mode settle timeout

Pablo Ceballos pceballos at google.com
Fri Jul 7 19:34:59 UTC 2023


On Wed, Jun 14, 2023 at 9:35 PM Nautiyal, Ankit K
<ankit.k.nautiyal at intel.com> wrote:
> I was wondering if trying to set LS/PCON mode multiple time will have
> any effect.
>
> Unfortunately I do not have access to machine with Parade LSPCON chip,
> had suggested in yet another git lab issue [2].
>
> I have a patch for this, sent to try-bot, though not sent to intel-gfx
> yet [3].

I tested this patch and it did not resolve the problem. The error log
was repeated multiple times and there were still link training issues
afterwards.

> The timeout value was already increased from 100 ms to 400 ms earlier too.
>
> If there is indeed no other way, perhaps need to have this solution.

Yes, can this please be merged?

Regards,
Pablo


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