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From:   Pablo Ceballos <pceballos@google.com>
Date:   Fri, 7 Jul 2023 12:34:59 -0700
Message-ID: <CAO9JgFx2i=S5P6_ndO85k3GFnggyJW1pXavc1emmSC3yjO8M7A@mail.gmail.com>
Subject: Re: [Intel-gfx] [PATCH v2] drm/i915/display/lspcon: Increase LSPCON
 mode settle timeout
To:     "Nautiyal, Ankit K" <ankit.k.nautiyal@intel.com>
Cc:     David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
        intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org,
        dri-devel@lists.freedesktop.org,
        Rodrigo Vivi <rodrigo.vivi@intel.com>,
        Sam Ravnborg <sam@ravnborg.org>
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On Wed, Jun 14, 2023 at 9:35=E2=80=AFPM Nautiyal, Ankit K
<ankit.k.nautiyal@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