linux-kernel - Re: [PATCH v11 01/16] dt: bindings: Add multicolor class dt bindings documention

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Message-ID: <487f2425-1570-c946-c4a6-3da60ad21f2c@gmail.com>
Date:   Thu, 10 Oct 2019 00:07:47 +0200
From:   Jacek Anaszewski <jacek.anaszewski@...il.com>
To:     Dan Murphy <dmurphy@...com>, pavel@....cz
Cc:     linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v11 01/16] dt: bindings: Add multicolor class dt bindings
 documention

Dan,

On 10/8/19 10:47 PM, Dan Murphy wrote:
> Add DT bindings for the LEDs multicolor class framework.
> 
> Signed-off-by: Dan Murphy <dmurphy@...com>
> ---
>  .../bindings/leds/leds-class-multicolor.txt   | 98 +++++++++++++++++++
>  1 file changed, 98 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/leds/leds-class-multicolor.txt
> 
> diff --git a/Documentation/devicetree/bindings/leds/leds-class-multicolor.txt b/Documentation/devicetree/bindings/leds/leds-class-multicolor.txt
> new file mode 100644
> index 000000000000..8619c9bf1811
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/leds-class-multicolor.txt
> @@ -0,0 +1,98 @@
> +* Multicolor LED properties
> +
> +Bindings for multi color LEDs show how to describe current outputs of
> +either integrated multi-color LED elements (like RGB, RGBW, RGBWA-UV
> +etc.) or standalone LEDs, to achieve logically grouped multi-color LED
> +modules. This is achieved by adding multi-led nodes layer to the
> +monochrome LED bindings.
> +
> +The nodes and properties defined in this document are unique to the multicolor
> +LED class.  Common LED nodes and properties are inherited from the common.txt
> +within this documentation directory.
> +
> +Required LED Child properties:

s/Child/child/

> +	- color : For multicolor LED support this property should be defined as
> +		  LED_COLOR_ID_MULTI and further definition can be found in
> +		  include/linux/leds/common.h.
> +
> +led-controller@30 {
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +	compatible = "ti,lp5024";
> +	reg = <0x29>;
> +
> +	multi-led@1 {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		reg = <1>;
> +		color = <LED_COLOR_ID_MULTI>;
> +		function = LED_FUNCTION_STATUS;

Status is not too fancy function for multi color LED ;-)
I'd skip it entirely for this example if we don't have
anything suitable at the moment for our disposal.

> +
> +		led@3 {
> +			reg = <3>;
> +			color = <LED_COLOR_ID_RED>;
> +		};
> +
> +		led@4 {
> +			reg = <4>;
> +			color = <LED_COLOR_ID_GREEN>;
> +		};
> +
> +		led@5 {
> +			reg = <5>;
> +			color = <LED_COLOR_ID_BLUE>;
> +		};
> +	};
> +
> +	multi-led@2 {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		color = <LED_COLOR_ID_MULTI>;
> +		function = LED_FUNCTION_ACTIVITY;
> +		reg = <2>;
> +		ti,led-bank = <2 3 5>;
> +
> +		led@6 {
> +			reg = <0x6>;
> +			color = <LED_COLOR_ID_RED>;
> +			led-sources = <6 9 15>;
> +		};
> +
> +		led@7 {
> +			reg = <0x7>;
> +			color = <LED_COLOR_ID_GREEN>;
> +			led-sources = <7 10 16>;
> +		};
> +
> +		led@8 {
> +			reg = <0x8>;
> +			color = <LED_COLOR_ID_BLUE>;
> +			led-sources = <8 11 17>;
> +		};
> +	};
> +
> +	multi-led@4 {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		reg = <4>;
> +		color = <LED_COLOR_ID_MULTI>;
> +		function = LED_FUNCTION_ACTIVITY;
> +
> +		led@12 {
> +			reg = <12>;
> +			color = <LED_COLOR_ID_RED>;
> +		};
> +
> +		led@13 {
> +			reg = <13>;
> +			color = <LED_COLOR_ID_GREEN>;
> +		};
> +
> +		led@14 {
> +			reg = <14>;
> +			color = <LED_COLOR_ID_BLUE>;
> +		};
> +	};
> +
> +};
> 

-- 
Best regards,
Jacek Anaszewski