linux-kernel - Re: [PATCH 1/2] dt-bindings: leds: Add SC27xx breathing light controller documentation

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Date:   Mon, 7 May 2018 22:13:21 +0200
From:   Jacek Anaszewski <jacek.anaszewski@...il.com>
To:     Baolin Wang <baolin.wang@...aro.org>, pavel@....cz,
        robh+dt@...nel.org, mark.rutland@....com
Cc:     xiaotong.lu@...eadtrum.com, broonie@...nel.org,
        linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: leds: Add SC27xx breathing light
 controller documentation

Hi Baolin,

Thank you for the patch. Please find few notes below.

On 05/04/2018 12:08 PM, Baolin Wang wrote:
> This patch adds the binding documentation for Spreadtrum SC27xx series
> breathing light controller, which supports 3 outputs: red LED, green
> LED and blue LED.
> 
> Signed-off-by: Baolin Wang <baolin.wang@...aro.org>
> ---
>   .../devicetree/bindings/leds/leds-sc27xx-bltc.txt  |   39 ++++++++++++++++++++
>   1 file changed, 39 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/leds/leds-sc27xx-bltc.txt
> 
> diff --git a/Documentation/devicetree/bindings/leds/leds-sc27xx-bltc.txt b/Documentation/devicetree/bindings/leds/leds-sc27xx-bltc.txt
> new file mode 100644
> index 0000000..d4e267d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/leds-sc27xx-bltc.txt
> @@ -0,0 +1,39 @@
> +LEDs connected to Spreadtrum SC27XX PMIC breathing light controller
> +
> +The SC27xx breathing light controller supports to 3 outputs:
> +red LED, green LED and blue LED. Each LED can work at normal
> +PWM mode or breath light mode.
> +
> +Required properties:
> +- compatible: should be "sprd,sc27xx-bltc".

s/should/Should/

> +- #address-cells: must be 1.

s/must/Must/

> +- #size-cells: must be 0.

Ditto.

> +- reg: specify controller address.

s/specify/Specify/

> +
> +LED sub-node properties:
> +- reg: number of LED line (could be from 0 to 2).

s/number/Number/

> +- label: (optional) name of LED.

- label: see Documentation/devicetree/bindings/leds/common.txt


> +
> +Examples:
> +
> +led-controller@200 {
> +	compatible = "sprd,sc27xx-bltc";
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +	reg = <0x200>;
> +
> +	red@0 {

s/red/led/

> +		label = "red";
> +		reg = <0x0>;
> +	};
> +
> +	green@1 {

s/green/led/

> +		label = "green";
> +		reg = <0x1>;
> +	};
> +
> +	blue@2 {

s/blue/led/

> +		label = "blue";
> +		reg = <0x2>;
> +	};
> +};
> 

-- 
Best regards,
Jacek Anaszewski