linux-kernel - Re: [PATCH 2/3] dt-bindings: gpio: Add binding document for xylon logicvc-gpio

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Message-ID: <20190923135908.GC57525@aptenodytes>
Date:   Mon, 23 Sep 2019 15:59:08 +0200
From:   Paul Kocialkowski <paul.kocialkowski@...tlin.com>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH 2/3] dt-bindings: gpio: Add binding document for xylon
 logicvc-gpio

Hi,

On Thu 12 Sep 19, 10:19, Linus Walleij wrote:
> On Tue, Sep 10, 2019 at 4:29 PM Paul Kocialkowski
> <paul.kocialkowski@...tlin.com> wrote:
> 
> > The Xylon LogiCVC display controller exports some GPIOs, which are
> > exposed as a dedicated driver.
> >
> > This introduces the associated device-tree bindings documentation.
> >
> > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>
> (...)
> > +The controller exposes GPIOs from the display and power control registers,
> > +which are mapped by the driver as follows:
> > +- GPIO[4:0] (display control) mapped to index 0-4
> > +- EN_BLIGHT (power control) mapped to index 5
> > +- EN_VDD (power control) mapped to index 6
> > +- EN_VEE (power control) mapped to index 7
> > +- V_EN (power control) mapped to index 8
> 
> This should be reflected in the gpio-line-names in the example
> and in your device trees.

Thanks, I didn't know about it until now!

Cheers,

Paul

-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com

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