Commit 29ecef8e authored by Guido Günther's avatar Guido Günther Committed by Shawn Guo
Browse files

arm64: dts: librem5-devkit: Make LED use PWM 



We can use PWM instead of just GPIO allowing us to control brightness.

Signed-off-by: default avatarGuido Günther <agx@sigxcpu.org>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 8065fc93

arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts

+11 −7
Original line number Diff line number Diff line
@@ -61,14 +61,12 @@ button-3 { 
	};



	leds {

		compatible = "gpio-leds";

		pinctrl-names = "default";

		pinctrl-0 = <&pinctrl_gpio_leds>;

		compatible = "pwm-leds";



		led1 {

			label = "LED 1";

			gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>;

			default-state = "off";

			max-brightness = <248>;

			pwms = <&pwm2 0 50000 0>;

		};

	};
@@ -615,9 +613,9 @@ MX8MQ_IOMUXC_GPIO1_IO05_GPIO1_IO5 0x19 /* TOUCH RST */ 
		>;

	};



	pinctrl_gpio_leds: gpioledgrp {

	pinctrl_pwm_led: pwmledgrp {

		fsl,pins = <

			MX8MQ_IOMUXC_GPIO1_IO13_GPIO1_IO13	0x16

			MX8MQ_IOMUXC_GPIO1_IO13_PWM2_OUT	0x16

		>;

	};
@@ -920,6 +918,12 @@ &pwm1 { 
	status = "okay";

};



&pwm2 {

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_pwm_led>;

	status = "okay";

};



&snvs_pwrkey {

	status = "okay";

};