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Commit 6993fd01 authored by Philip Avinash's avatar Philip Avinash Committed by Benoit Cousson
Browse files

ARM: dts: AM33XX: Add PWM backlight DT data to am335x-evm 



PWM output from ecap0 uses as backlight source. Also adds low threshold
value to have a uniform divisions in brightness-levels scales.

Signed-off-by: default avatarPhilip Avinash <avinashphilip@ti.com>
Reviewed-by: default avatarThierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: default avatarBenoit Cousson <benoit.cousson@linaro.org>
parent 0a7486c9

arch/arm/boot/dts/am335x-evm.dts

+23 −0
Original line number Diff line number Diff line
@@ -91,6 +91,12 @@ 
				0x9c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_be0n_cle.gpmc_be0n_cle */

			>;

		};



		ecap0_pins: backlight_pins {

			pinctrl-single,pins = <

				0x164 0x0	/* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */

			>;

		};

	};



	ocp {
@@ -163,6 +169,16 @@ 
			status = "okay";

		};



		epwmss0: epwmss@48300000 {

			status = "okay";



			ecap0: ecap@48300100 {

				status = "okay";

				pinctrl-names = "default";

				pinctrl-0 = <&ecap0_pins>;

			};

		};



		gpmc: gpmc@50000000 {

			status = "okay";

			pinctrl-names = "default";
@@ -299,6 +315,13 @@ 
			gpio-key,wakeup;

		};

	};



	backlight {

		compatible = "pwm-backlight";

		pwms = <&ecap0 0 50000 0>;

		brightness-levels = <0 51 53 56 62 75 101 152 255>;

		default-brightness-level = <8>;

	};

};



#include "tps65910.dtsi"