Commit 15ca3f00 authored by Markus Niebel's avatar Markus Niebel Committed by Shawn Guo
Browse files

arm64: dt: imx8mq: support pwm polarity inversion 



The i.MX8MQ has the same PWM IP as i.MX6 / i.MX7. This IP and the driver
supporting pwm polarity inversion. Switch CPU device tree fragment to
use 3 pwm-cells and correct board device trees.

Signed-off-by: default avatarMarkus Niebel <Markus.Niebel@ew.tq-group.com>
Signed-off-by: default avatarAlexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 22463f7c

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

+1 −1
Original line number Diff line number Diff line
@@ -18,7 +18,7 @@ 
	backlight_dsi: backlight-dsi {

		compatible = "pwm-backlight";

		/* 200 Hz for the PAM2841 */

		pwms = <&pwm1 0 5000000>;

		pwms = <&pwm1 0 5000000 0>;

		brightness-levels = <0 100>;

		num-interpolated-steps = <100>;

		/* Default brightness level (index into the array defined by */

arch/arm64/boot/dts/freescale/imx8mq-mnt-reform2.dts

+1 −1
Original line number Diff line number Diff line
@@ -18,7 +18,7 @@ 
		compatible = "pwm-backlight";

		pinctrl-names = "default";

		pinctrl-0 = <&pinctrl_backlight>;

		pwms = <&pwm2 0 10000>;

		pwms = <&pwm2 0 10000 0>;

		power-supply = <&reg_main_usb>;

		enable-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;

		brightness-levels = <0 32 64 128 160 200 255>;

arch/arm64/boot/dts/freescale/imx8mq.dtsi

+4 −4
Original line number Diff line number Diff line
@@ -798,7 +798,7 @@ 
				clocks = <&clk IMX8MQ_CLK_PWM1_ROOT>,

				         <&clk IMX8MQ_CLK_PWM1_ROOT>;

				clock-names = "ipg", "per";

				#pwm-cells = <2>;

				#pwm-cells = <3>;

				status = "disabled";

			};
@@ -809,7 +809,7 @@ 
				clocks = <&clk IMX8MQ_CLK_PWM2_ROOT>,

				         <&clk IMX8MQ_CLK_PWM2_ROOT>;

				clock-names = "ipg", "per";

				#pwm-cells = <2>;

				#pwm-cells = <3>;

				status = "disabled";

			};
@@ -820,7 +820,7 @@ 
				clocks = <&clk IMX8MQ_CLK_PWM3_ROOT>,

				         <&clk IMX8MQ_CLK_PWM3_ROOT>;

				clock-names = "ipg", "per";

				#pwm-cells = <2>;

				#pwm-cells = <3>;

				status = "disabled";

			};
@@ -831,7 +831,7 @@ 
				clocks = <&clk IMX8MQ_CLK_PWM4_ROOT>,

				         <&clk IMX8MQ_CLK_PWM4_ROOT>;

				clock-names = "ipg", "per";

				#pwm-cells = <2>;

				#pwm-cells = <3>;

				status = "disabled";

			};