linux-kernel - Re: [PATCH v4 2/2] dt-bindings: leds: backlight: Add Kinetic KTZ8866 backlight

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Message-ID: <Y8awSrqiWLoPQvIa@Gentoo>
Date:   Tue, 17 Jan 2023 22:27:22 +0800
From:   Jianhua Lu <lujianhua000@...il.com>
To:     Daniel Thompson <daniel.thompson@...aro.org>
Cc:     Lee Jones <lee@...nel.org>, Jingoo Han <jingoohan1@...il.com>,
        Pavel Machek <pavel@....cz>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Helge Deller <deller@....de>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linux-leds@...r.kernel.org,
        devicetree@...r.kernel.org, linux-fbdev@...r.kernel.org
Subject: Re: [PATCH v4 2/2] dt-bindings: leds: backlight: Add Kinetic KTZ8866
 backlight

On Tue, Jan 17, 2023 at 02:22:04PM +0000, Daniel Thompson wrote:
> On Tue, Jan 17, 2023 at 09:47:42PM +0800, Jianhua Lu wrote:
> > Add Kinetic KTZ8866 backlight binding documentation.
> >
> > Signed-off-by: Jianhua Lu <lujianhua000@...il.com>
> 
> Might be a good idea to take a look at this bit of the docs because
> the patchset is not in the right order (I.5):
> https://docs.kernel.org/devicetree/bindings/submitting-patches.html
Thanks, I will read it.
> 
> 
> > ---
> > Changes in v2:
> >   - Remove "items" between "compatible" and "const: kinetic,ktz8866"
> >   - Change "additionalProperties" to "unevaluatedProperties"
> >
> > Changes in v3:
> >   - Add Krzysztof's R-b
> >
> > Changes in v4:
> >   - Drop Krzysztof's R-b
> >   - Add some new properties
> >
> >  .../leds/backlight/kinetic,ktz8866.yaml       | 54 +++++++++++++++++++
> >  1 file changed, 54 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/leds/backlight/kinetic,ktz8866.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/leds/backlight/kinetic,ktz8866.yaml b/Documentation/devicetree/bindings/leds/backlight/kinetic,ktz8866.yaml
> > new file mode 100644
> > index 000000000000..18571d69accb
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/leds/backlight/kinetic,ktz8866.yaml
> > @@ -0,0 +1,54 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/leds/backlight/kinetic,ktz8866.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Kinetic Technologies KTZ8866 backlight
> > +
> > +maintainers:
> > +  - Jianhua Lu <lujianhua000@...il.com>
> > +
> > +description: |
> > +  The Kinetic Technologies KTZ8866 is a high efficiency 6-sinks led backlight
> > +  with dual lcd bias power.
> > +  https://www.kinet-ic.com/ktz8866/
> > +
> > +allOf:
> > +  - $ref: common.yaml#
> > +
> > +properties:
> > +  compatible:
> > +    const: kinetic,ktz8866
> > +
> > +  current-num-sinks:
> > +    description: Number of LED current sinks.
> > +
> > +  current-ramping-time:
> > +    description: LED current ramping time.
> 
> Needs to document know what units this value is expressed in. IIRC
> this should be expressed in SI units and included the property name.
> Something like:
> 
>   current-ramping-time-us:
>     description: LED current ramping time in microseconds.
> 
Get it, I will send a new version patch.
> 
> > +
> > +  led-ramping-time:
> > +    description: LED on/off ramping time.
> 
> +1
> 
> 
> Daniel.