linux-kernel - Re: [PATCH] drm/bridge: it6505: Add caching for EDID

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Message-ID: <CAG3jFysB_nWvJ7pqJj_jRNvncK58Rw=kHgdWu=ek7msHGi4E2w@mail.gmail.com>
Date:   Thu, 15 Dec 2022 11:29:05 +0100
From:   Robert Foss <robert.foss@...aro.org>
To:     Pin-yen Lin <treapking@...omium.org>
Cc:     Neil Armstrong <neil.armstrong@...aro.org>,
        Jonas Karlman <jonas@...boo.se>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        allen chen <allen.chen@....com.tw>,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH] drm/bridge: it6505: Add caching for EDID

On Thu, 15 Dec 2022 at 09:36, Pin-yen Lin <treapking@...omium.org> wrote:
>
> Hi Robert,
>
> Thanks for the review.
>
> I didn't see this patch on drm-misc-next, but my another patch merged
> instead: https://cgit.freedesktop.org/drm/drm-misc/commit/?id=5eb9a4314053bda7642643f70f49a2b415920812
>
> Did something go wrong? Or is it me missing something?

This is my mistake. I'm switching to a 'b4 ty' based workflow, and the
wrong thank you message got sent out.

Let me have a look at this patch too.

>
> Regards,
> Pin-yen
>
> On Thu, Dec 15, 2022 at 12:51 AM Robert Foss <robert.foss@...aro.org> wrote:
> >
> > On Tue, 15 Nov 2022 19:27:20 +0800, Pin-yen Lin wrote:
> > > Add caching when EDID is read, and invalidate the cache until the
> > > bridge detects HPD low or sink count changes on HPD_IRQ.
> > >
> > > It takes 1.2s for IT6505 bridge to read a 3-block EDID, and skipping
> > > one EDID read would be a notable difference on user experience.
> > >
> > >
> > > [...]
> >
> > Applied, thanks!
> >
> > Repo: https://cgit.freedesktop.org/drm/drm-misc/
> >
> >
> > [1/1] drm/bridge: it6505: Add caching for EDID
> >       (no commit info)
> >
> >
> >
> > rob
> >