ARM: dts: am437x-gp-evm: Add pwm backlight support. (c540b476) · Commits · 戴 / test

arch/arm/boot/dts/am437x-gp-evm.dts

+24 −0

Original line number	Diff line number	Diff line
		@@ -12,10 +12,18 @@

		#include "am4372.dtsi"
		#include <dt-bindings/pinctrl/am43xx.h>
		#include <dt-bindings/pwm/pwm.h>

		/ {
		model = "TI AM437x GP EVM";
		compatible = "ti,am437x-gp-evm","ti,am4372","ti,am43";

		backlight {
		compatible = "pwm-backlight";
		pwms = <&ecap0 0 50000 PWM_POLARITY_INVERTED>;
		brightness-levels = <0 51 53 56 62 75 101 152 255>;
		default-brightness-level = <8>;
		};
		};

		&am43xx_pinmux {
		@@ -32,6 +40,12 @@
		0x158 (PIN_INPUT_PULLUP \| SLEWCTRL_FAST \| MUX_MODE2) /* spi0_d1.i2c1_sda */
		>;
		};

		ecap0_pins: backlight_pins {
		pinctrl-single,pins = <
		0x164 MUX_MODE0 /* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */
		>;
		};
		};

		&i2c0 {
		@@ -45,3 +59,13 @@
		pinctrl-names = "default";
		pinctrl-0 = <&i2c1_pins>;
		};

		&epwmss0 {
		status = "okay";
		};

		&ecap0 {
		status = "okay";
		pinctrl-names = "default";
		pinctrl-0 = <&ecap0_pins>;
		};