linux-kernel - Re: [PATCH 2/3] dt-bindings: leds: Add binding for sgm3140

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Date:   Sun, 15 Mar 2020 12:53:45 +0200
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Luca Weiss <luca@...tu.xyz>
Cc:     linux-leds@...r.kernel.org, Dan Murphy <dmurphy@...com>,
        Heiko Stuebner <heiko@...ech.de>,
        Icenowy Zheng <icenowy@...c.io>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Ripard <mripard@...nel.org>,
        Pavel Machek <pavel@....cz>, Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht
Subject: Re: [PATCH 2/3] dt-bindings: leds: Add binding for sgm3140

Hi Luca,

On Sun, Mar 15, 2020 at 11:47:36AM +0100, Luca Weiss wrote:
> On Mittwoch, 11. März 2020 13:49:35 CET Dan Murphy wrote:
> > On 3/9/20 3:35 PM, Luca Weiss wrote:
> > > Add YAML devicetree binding for SGMICRO SGM3140 charge pump used for
> > > camera flash LEDs.
> > > 
> > > Signed-off-by: Luca Weiss <luca@...tu.xyz>
> > > ---
> > > Changes since RFC:
> > > - new patch
> > > 
> > > I'm not sure about the completeness of this binding as it doesn't
> > > mention the led subnode at all.
> > > The only existing led yaml binding is leds/leds-max77650.yaml which
> > > mentions the subnode but duplicates properties from documented in
> > > leds/common.txt.
> > > 
> > >   .../bindings/leds/leds-sgm3140.yaml           | 53 +++++++++++++++++++
> > >   1 file changed, 53 insertions(+)
> > >   create mode 100644
> > >   Documentation/devicetree/bindings/leds/leds-sgm3140.yaml
> > > 
> > > diff --git a/Documentation/devicetree/bindings/leds/leds-sgm3140.yaml
> > > b/Documentation/devicetree/bindings/leds/leds-sgm3140.yaml new file mode
> > > 100644
> > > index 000000000000..be9384573d02
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/leds/leds-sgm3140.yaml
> > > @@ -0,0 +1,53 @@
> > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > +%YAML 1.2
> > > +---
> > > +$id: http://devicetree.org/schemas/leds/leds-sgm3140.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: SGMICRO SGM3140 500mA Buck/Boost Charge Pump LED Driver
> > > +
> > > +maintainers:
> > > +  - Luca Weiss <luca@...tu.xyz>
> > > +
> > > +description: |
> > > +  The SGM3140 is a current-regulated charge pump which can regulate two
> > > current +  levels for Flash and Torch modes.
> > > +
> > > +  It is controlled with two GPIO pins.
> > 
> > Please define "It".  Not sure what is controlled here.
> > 
> 
> "It" means the SGM3140. Not sure how else to write that or what the correct 
> term for such a component is.

Maybe "The device" ? I think Dan's concern is that he wasn't sure if
"It" referred to "the device" or to "flash and torch modes".

-- 
Regards,

Laurent Pinchart