linux-kernel - Re: [PATCH v2 1/2] dt-bindings: display: panel: Add Novatek NT35596S panel bindings

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Message-ID: <YsqmRzxlvdoK8iK8@ravnborg.org>
Date:   Sun, 10 Jul 2022 12:13:27 +0200
From:   Sam Ravnborg <sam@...nborg.org>
To:     Molly Sophia <mollysophia379@...il.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v2 1/2] dt-bindings: display: panel: Add Novatek NT35596S
 panel bindings

Hi Molly,

On Sun, Jul 10, 2022 at 02:19:41PM +0800, Molly Sophia wrote:
> Hi Sam,
> 
> Thanks for your suggestions.
> 
> Sam Ravnborg <sam@...nborg.org> 于 2022年7月10日周日 上午4:47写道：
> 
> > Hi Molly,
> >
> > thanks for the quick response to the review comments.
> >
> > On Sat, Jul 09, 2022 at 10:11:35PM +0800, MollySophia wrote:
> > > Add documentation for "novatek,nt35596s" panel.
> > >
> > > Signed-off-by: MollySophia <mollysophia379@...il.com>
> > The s-o-b needs your real name - guess the above is a concatenation of
> > first name and surname.
> >
> > The binding included in this patch fails the check:
> > $ make DT_CHECKER_FLAGS=-m dt_binding_check
> >
> > You may need to run:
> > $ pip3 install dtschema --upgrade
> >
> > Or you may have to install some dependencies first.
> > The problem is that the patch is missing a "reset-gpios: true"
> >
> > On top of this I looked at the binding - and the description
> > this is copied from is almost identical.
> > So another approach would be to extend the existing binding like
> > in the following.
> >
> > And this also gives a good hint that maybe this can be embedded in
> > the existing driver - and there is no need for a new driver.
> > Could you try to give this a spin and get back on this.
> >
> 
> That's reasonable. Actually, this driver was modified from
> novatek,nt35596s, with different panel initialization commands, and it
> seems easy to be embedded in
> the existing driver. However, I wonder what the driver file name would
> be...? "panel-novatek-nt35596s-nt36672a.c" or something else?

Just keep the current driver name - we cannot embed all the supported HW
in one driver name anyway. And then you do not break currents users in
case they have hardwired the current driver name.

	Sam