linux-kernel - Re: [PATCH 2/2] drm/bridge: parade-ps8640: Add support for AUX channel

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Message-ID: <CA+cxXhme8OPMxtQqEn5yotx+EDpTBFyBuQxCcofsXUKO7gR0Sg@mail.gmail.com>
Date:   Mon, 13 Sep 2021 14:35:14 -0700
From:   Philip Chen <philipchen@...omium.org>
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Douglas Anderson <dianders@...omium.org>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Jonas Karlman <jonas@...boo.se>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Robert Foss <robert.foss@...aro.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>
Subject: Re: [PATCH 2/2] drm/bridge: parade-ps8640: Add support for AUX channel

On Thu, Sep 9, 2021 at 12:07 PM Stephen Boyd <swboyd@...omium.org> wrote:
>
> Quoting Philip Chen (2021-09-09 11:15:27)
> > On Wed, Sep 8, 2021 at 3:27 PM Stephen Boyd <swboyd@...omium.org> wrote:
> > >
> > > Quoting Philip Chen (2021-09-08 11:18:06)
> > >
> > > > +
> > > > +       data = (len - 1) & AUX_LENGTH_MASK;
> > > > +       regmap_write(map, PAGE0_AUX_LENGTH, data);
> > > > +
> > > > +       if (request == DP_AUX_NATIVE_WRITE || request == DP_AUX_I2C_WRITE) {
> > > > +               ret = regmap_noinc_write(map, PAGE0_AUX_WDATA, buf, len);
> > > > +               if (ret < 0) {
> > > > +                       DRM_ERROR("failed to write PAGE0_AUX_WDATA");
> > >
> > > Needs a newline.
> > Adding an empty line here doesn't look like a common Linux style?
> > Could you point me to any similar instances in the Linux codebase?
>
> Sorry. I meant on the DRM_ERROR message itself. Add a newline.

Fixed in v2. PTAL.