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Commit c8e96e07 authored by Thomas Hebb's avatar Thomas Hebb Committed by Jisheng Zhang
Browse files

ARM: dts: chromecast: use PWM for LEDs 



Control the Chromecast's two LEDs using PWM instead of GPIO pins. This
allows for variable brightness.

Signed-off-by: default avatarThomas Hebb <tommyhebb@gmail.com>
Signed-off-by: default avatarJisheng Zhang <Jisheng.Zhang@synaptics.com>
parent 9fb2856f

arch/arm/boot/dts/berlin2cd-google-chromecast.dts

+15 −5
Original line number Diff line number Diff line
@@ -66,18 +66,21 @@ 
	};



	leds {

		compatible = "gpio-leds";

		compatible = "pwm-leds";

		pinctrl-0 = <&ledpwm_pmux>;

		pinctrl-names = "default";



		white {

			label = "white";

			gpios = <&portc 1 GPIO_ACTIVE_HIGH>;

			default-state = "keep";

			pwms = <&pwm 0 600000 0>;

			max-brightness = <255>;

			linux,default-trigger = "default-on";

		};



		red {

			label = "red";

			gpios = <&portc 2 GPIO_ACTIVE_HIGH>;

			default-state = "keep";

			pwms = <&pwm 1 600000 0>;

			max-brightness = <255>;

		};

	};

};
@@ -96,3 +99,10 @@ 
&usb_phy1 { status = "okay"; };



&usb1 { status = "okay"; };



&soc_pinctrl {

	ledpwm_pmux: ledpwm-pmux {

		groups = "G0";

		function = "pwm";

	};

};