linux-kernel - Re: [PATCH v5 4/4] ARM: dts: sun8i: Add leds and switch on Orangepi Plus boards

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Message-ID: <20160225193809.GO4736@lukather>
Date:	Thu, 25 Feb 2016 11:38:09 -0800
From:	Maxime Ripard <maxime.ripard@...e-electrons.com>
To:	Krzysztof Adamski <k@...ko.eu>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	Chen-Yu Tsai <wens@...e.org>,
	Hans de Goede <hdegoede@...hat.com>,
	Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>,
	Jens Kuske <jenskuske@...il.com>,
	Fabian Frederick <fabf@...net.be>,
	Vishnu Patekar <vishnupatekar0510@...il.com>,
	linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH v5 4/4] ARM: dts: sun8i: Add leds and switch on Orangepi
 Plus boards

Hi,

On Mon, Feb 22, 2016 at 02:03:28PM +0100, Krzysztof Adamski wrote:
> OrangePi Plus board has two leds - green ("pwr") and red ("status")
> and a switch ("sw4"). This patch describes them in a devicetree.
> 
> Signed-off-by: Krzysztof Adamski <k@...ko.eu>
> ---
>  arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts | 63 ++++++++++++++++++++++++++++
>  1 file changed, 63 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts
> index e67df59..5f159d0 100644
> --- a/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts
> +++ b/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts
> @@ -45,6 +45,7 @@
>  #include "sunxi-common-regulators.dtsi"
>  
>  #include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
>  #include <dt-bindings/pinctrl/sun4i-a10.h>
>  
>  / {
> @@ -58,6 +59,68 @@
>  	chosen {
>  		stdout-path = "serial0:115200n8";
>  	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&leds_opc>;
> +
> +		status_led {
> +			label = "status:red:user";
> +			gpios = <&pio 0 15 GPIO_ACTIVE_HIGH>;
> +		};
> +	};
> +
> +	r_leds {
> +		compatible = "gpio-leds";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&leds_r_opc>;
> +
> +		tx {
> +			label = "pwr:green:user";
> +			gpios = <&r_pio 0 10 GPIO_ACTIVE_HIGH>;
> +			default-state = "on";
> +		};
> +	};

You can merge the two gpio-leds nodes into a single one.

Plus, the label format is <board>:<colour>:<role>

In these case, it would be more "orangepi-plus:red:status" and
"orangepi-plus:green:pwr".

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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