linux-kernel - Re: [PATCH v4 2/4] drm/panel: Add panel driver for NewVision NV3052C based LCDs

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Message-ID: <YjhkPnr46IOy5iS+@ravnborg.org>
Date:   Mon, 21 Mar 2022 12:40:46 +0100
From:   Sam Ravnborg <sam@...nborg.org>
To:     Christophe Branchereau <cbranchereau@...il.com>
Cc:     Paul Cercueil <paul@...pouillou.net>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Thierry Reding <thierry.reding@...il.com>,
        Rob Herring <robh+dt@...nel.org>, linux-kernel@...r.kernel.org,
        linux-mips@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v4 2/4] drm/panel: Add panel driver for NewVision NV3052C
 based LCDs

Hi Christophe,

> > > +     { 0x0d, 0x58 },
> > > +     { 0x0e, 0x48 },
> > > +     { 0x0f, 0x38 },
> > > +     { 0x10, 0x2b },
> > > +
> > > +     { 0xff, 0x30 },
> > > +     { 0xff, 0x52 },
> > > +     { 0xff, 0x00 },
> > > +     { 0x36, 0x0a },
> > > +};
> > There are some random (?) empty lines.
> > If they have any significance then a short comment would be nice.
> > If not, then drop the empty lines.
> >
> 
> The empty lines are not random no, to access a different page in the
> init, one must write i.e.   { 0xff, 0x30 }, { 0xff, 0x52 }, { 0xff,
> 0x02 }, to access page 2, so they add a little bit of readability.
Then I suggest to just say what page is is like:

	/* Page 1 */
	{ 0xff, 0x30 },
	...

Etc. then it is obvious this is page boundaries.

	Sam