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arm64: dts: imx8mm-evk: add pwm1/backlight support

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Add pwm1/backlight support nodes for imx8mm_evk board.
Align with u-boot dts

References:
 - https://patchwork.ozlabs.org/project/uboot/patch/20220326111911.13720-9-tommaso.merciai@amarulasolutions.com/

Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Tommaso Merciai 2022-04-13 23:33:11 +02:00 committed by Shawn Guo
parent e7fc48e6c7
commit b5f955c099
1 changed files with 20 additions and 0 deletions
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20
arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
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@ -59,6 +59,14 @@
enable-active-high;
};
backlight: backlight {
compatible = "pwm-backlight";
pwms = <&pwm1 0 5000000>;
brightness-levels = <0 255>;
num-interpolated-steps = <255>;
default-brightness-level = <250>;
};
ir-receiver {
compatible = "gpio-ir-receiver";
gpios = <&gpio1 13 GPIO_ACTIVE_LOW>;
@ -395,6 +403,12 @@
status = "okay";
};
&pwm1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_backlight>;
status = "okay";
};
&iomuxc {
pinctrl_fec1: fec1grp {
fsl,pins = <
@ -549,4 +563,10 @@
MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0x166
>;
};
pinctrl_backlight: backlightgrp {
fsl,pins = <
MX8MM_IOMUXC_GPIO1_IO01_PWM1_OUT 0x06
>;
};
};