@@ -59,6 +59,14 @@ reg_usdhc2_vmmc: regulator-usdhc2 {
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 @@ &wdog1 {
status = "okay";
};
+&pwm1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_backlight>;
+ status = "okay";
+};
+
&iomuxc {
pinctrl_fec1: fec1grp {
fsl,pins = <
@@ -549,4 +563,10 @@ pinctrl_wdog: wdoggrp {
MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0x166
>;
};
+
+ pinctrl_backlight: backlightgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_GPIO1_IO01_PWM1_OUT 0x06
+ >;
+ };
};
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> --- Changes since v1: - Fix commit body - Enable pwm, backlight Changes since v2: - Remove status okay from pwm1,backlight (enable as default) Changes since v3: - Remove status okay only from backlight (enable as default), pwm1 is disabled on imx8mm.dtsi, we need to enable it arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+)