linux-kernel - Re: [PATCH 3/4] arm64: dts: sun50i-a64-pinephone: add multicolor led node

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Date: Tue, 30 Jan 2024 20:41:14 +0100
From: Jernej Škrabec <jernej.skrabec@...il.com>
To: linux-kernel@...r.kernel.org, Aren Moynihan <aren@...cevolution.org>
Cc: Miles Alan <m@...esalan.com>, Ondrej Jirman <megi@....cz>,
 Aren Moynihan <aren@...cevolution.org>, Chen-Yu Tsai <wens@...e.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Rob Herring <robh+dt@...nel.org>, Samuel Holland <samuel@...lland.org>,
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-sunxi@...ts.linux.dev
Subject:
 Re: [PATCH 3/4] arm64: dts: sun50i-a64-pinephone: add multicolor led node

Dne nedelja, 28. januar 2024 ob 21:45:09 CET je Aren Moynihan napisal(a):
> The red, green, and blue leds currently in the device tree represent a
> single rgb led on the front of the PinePhone.
> 
> Signed-off-by: Aren Moynihan <aren@...cevolution.org>
> ---
> 
>  .../boot/dts/allwinner/sun50i-a64-pinephone.dtsi    | 13 ++++++++++---
>  1 file changed, 10 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
> index ad2476ee01e4..6eab61a12cd8 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
> @@ -39,21 +39,21 @@ chosen {
>  	leds {
>  		compatible = "gpio-leds";
>  
> -		led-0 {
> +		led0: led-0 {
>  			function = LED_FUNCTION_INDICATOR;
>  			color = <LED_COLOR_ID_BLUE>;
>  			gpios = <&pio 3 20 GPIO_ACTIVE_HIGH>; /* PD20 */
>  			retain-state-suspended;
>  		};
>  
> -		led-1 {
> +		led1: led-1 {
>  			function = LED_FUNCTION_INDICATOR;
>  			color = <LED_COLOR_ID_GREEN>;
>  			gpios = <&pio 3 18 GPIO_ACTIVE_HIGH>; /* PD18 */
>  			retain-state-suspended;
>  		};
>  
> -		led-2 {
> +		led2: led-2 {
>  			function = LED_FUNCTION_INDICATOR;
>  			color = <LED_COLOR_ID_RED>;
>  			gpios = <&pio 3 19 GPIO_ACTIVE_HIGH>; /* PD19 */
> @@ -61,6 +61,13 @@ led-2 {
>  		};
>  	};
>  
> +	multi-led {
> +		compatible = "leds-group-multicolor";
> +		color = <LED_COLOR_ID_RGB>;
> +		function = LED_FUNCTION_INDICATOR;

Does it make sense to have function specified here and above? Example
specifies it only in multi-led node.

Best regards,
Jernej

> +		leds = <&led0>, <&led1>, <&led2>;
> +	};
> +
>  	reg_ps: ps-regulator {
>  		compatible = "regulator-fixed";
>  		regulator-name = "ps";
>