linux-kernel - Re: [PATCH v3 10/16] drm/panel-simple: Non-eDP panels don't need "HPD" handling

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Date:   Wed, 8 Sep 2021 14:10:48 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Sam Ravnborg <sam@...nborg.org>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Linus W <linus.walleij@...aro.org>,
        Daniel Vetter <daniel@...ll.ch>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, Steev Klimaszewski <steev@...i.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Maxime Ripard <mripard@...nel.org>,
        David Airlie <airlied@...ux.ie>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 10/16] drm/panel-simple: Non-eDP panels don't need
 "HPD" handling

Hi,

On Sun, Sep 5, 2021 at 11:46 AM Sam Ravnborg <sam@...nborg.org> wrote:
>
> On Wed, Sep 01, 2021 at 01:19:28PM -0700, Douglas Anderson wrote:
> > All of the "HPD" handling added to panel-simple recently was for eDP
> > panels. Remove it from panel-simple now that panel-simple-edp handles
> > eDP panels. The "prepare_to_enable" delay only makes sense in the
> > context of HPD, so remove it too. No non-eDP panels used it anyway.
> >
> > Signed-off-by: Douglas Anderson <dianders@...omium.org>
>
> Maybe merge this with the patch that moved all the functionality
> from panel-simple to panel-edp?

Unless you feel strongly about it, I'm going to keep it separate still
in the next version. To try to make diffing easier, I tried hard to
make the minimal changes in the "split the driver in two" patch.

-Doug