linux-kernel - Re: [PATCH 2/2] arm64: dts: rockchip: Add initial support for Pine64 PinePhone Pro

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Date:   Wed, 15 Jun 2022 15:28:27 +0200
From:   Pavel Machek <pavel@....cz>
To:     Tom Fitzhenry <tom@...-fitzhenry.me.uk>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Samuel Holland <samuel@...lland.org>, Ondrej Jirman <x@....cz>,
        Martijn Braam <martijn@...xit.nl>,
        Ondrej Jirman <megous@...ous.com>
Subject: Re: [PATCH 2/2] arm64: dts: rockchip: Add initial support for Pine64
 PinePhone Pro

Hi!

> +	// Per "RK 3399 SARADC", page 8.
> +	adc-keys {
> +		compatible = "adc-keys";
> +		io-channels = <&saradc 1>;
> +		io-channel-names = "buttons";
> +		keyup-threshold-microvolt = <1600000>;
> +		poll-interval = <100>;
> +
> +		button-up {
> +			label = "Volume Up";
> +			linux,code = <KEY_VOLUMEUP>;
> +			press-threshold-microvolt = <100000>;
> +		};
> +
> +		button-down {
> +			label = "Volume Down";
> +			linux,code = <KEY_VOLUMEDOWN>;
> +			press-threshold-microvolt = <300000>;
> +		};
> +	};

Wow. Quite a hack...


> +	// Per "RK3399 GPIO", page 11.
> +	leds {
> +		compatible = "gpio-leds";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&red_led_pin &green_led_pin &blue_led_pin>;


> + led-standby { + color = <LED_COLOR_ID_RED>; + default-state = "off"; + function = 

I wish LED was connected to PWM, not to simple GPIO...

Plus, it is really one RGB LED, right? It should be handled as such.

Best regards,
								Pavel

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