linux-kernel - Re: [PATCH v2 0/5] drm/panel-simple: Patches for N116BCA-EA1

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Date:   Fri, 5 Mar 2021 07:42:35 -0800
From:   Doug Anderson <dianders@...omium.org>
To:     Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>
Cc:     Rob Clark <robdclark@...omium.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 0/5] drm/panel-simple: Patches for N116BCA-EA1

Hi folks,

On Fri, Jan 15, 2021 at 2:44 PM Douglas Anderson <dianders@...omium.org> wrote:
>
> This series is to get the N116BCA-EA1 panel working. Most of the
> patches are simple, but on hardware I have in front of me the panel
> sometimes doesn't come up. I'm still working with the hardware
> manufacturer to get to the bottom of it, but I've got it working with
> retries. Adding the retries doesn't seem like an insane thing to do
> and makes some of the error handling more robust, so I've gone ahead
> and included those patches here. Hopefully they look OK.
>
> Changes in v2:
> - Set the "unprepared_time" so if we retry we give the proper delay.
> - ("drm/panel-simple: Don't wait longer for HPD...") new for v2.
> - ("drm/panel-simple: Retry if we timeout waiting for HPD") new for v2.
> - ("dt-bindings: dt-bindings: display: simple: Add N116BCA-EA1") new for v2.
> - ("drm/panel-simple: Add N116BCA-EA1") new for v2.
>
> Douglas Anderson (5):
>   drm/panel-simple: Undo enable if HPD never asserts
>   drm/panel-simple: Don't wait longer for HPD than hpd_absent_delay
>   drm/panel-simple: Retry if we timeout waiting for HPD
>   dt-bindings: dt-bindings: display: simple: Add N116BCA-EA1
>   drm/panel-simple: Add N116BCA-EA1
>
>  .../bindings/display/panel/panel-simple.yaml  |  2 +
>  drivers/gpu/drm/panel/panel-simple.c          | 84 +++++++++++++++++--
>  2 files changed, 80 insertions(+), 6 deletions(-)

While this isn't massively urgent, I'm hoping to get some confirmation
that it's still in someone's queue to look at.  A quick "it's still in
my queue" would be much appreciated!  :-)  If I don't hear anything
then I guess next week I'll see if I can find other ways to poke folks
or find a different route to land this series.  Thanks!

-Doug