linux-kernel - Re: [PATCH] arm64: dts: imx8mn-ddr4-evk: Enable GPIO LED

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Date:   Mon, 2 Sep 2019 22:31:44 +0200
From:   Pavel Machek <pavel@....cz>
To:     Anson Huang <Anson.Huang@....com>
Cc:     robh+dt@...nel.org, mark.rutland@....com, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Linux-imx@....com
Subject: Re: [PATCH] arm64: dts: imx8mn-ddr4-evk: Enable GPIO LED

On Mon 2019-09-02 16:45:38, Anson Huang wrote:
> i.MX8MN DDR4 EVK board has a GPIO LED to indicate status,
> add support for it.

LED maintainers want to be on the cc list...

> @@ -15,6 +15,18 @@
>  		stdout-path = &uart2;
>  	};
>  
> +	leds {
> +		compatible = "gpio-leds";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_gpio_led>;
> +
> +		status {
> +			label = "status";
> +			gpios = <&gpio3 16 GPIO_ACTIVE_HIGH>;
> +			default-state = "on";
> +		};

And we should really standardize labels for user-controlled status LEDs. Mentioning
color would be nice, for a start.

Best regards,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html