diff options
| author | Guido Günther <agx@sigxcpu.org> | 2022-10-09 14:26:54 +0200 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2022-10-29 09:15:12 +0800 |
| commit | 29ecef8eceecec09f01e58740235009de436ea53 (patch) | |
| tree | f7e9a7fc3c9ced20cd642bebe41599b62ad6e3e3 | |
| parent | 8065fc937f0f147f0a6efdf14f3cbcb821ea18db (diff) | |
arm64: dts: librem5-devkit: Make LED use PWM
We can use PWM instead of just GPIO allowing us to control brightness.
Signed-off-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts index 6445c6b90b5b..7e4b6d65fd89 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts @@ -61,14 +61,12 @@ }; leds { - compatible = "gpio-leds"; - pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_gpio_leds>; + compatible = "pwm-leds"; led1 { label = "LED 1"; - gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>; - default-state = "off"; + max-brightness = <248>; + pwms = <&pwm2 0 50000 0>; }; }; @@ -615,9 +613,9 @@ >; }; - pinctrl_gpio_leds: gpioledgrp { + pinctrl_pwm_led: pwmledgrp { fsl,pins = < - MX8MQ_IOMUXC_GPIO1_IO13_GPIO1_IO13 0x16 + MX8MQ_IOMUXC_GPIO1_IO13_PWM2_OUT 0x16 >; }; @@ -920,6 +918,12 @@ status = "okay"; }; +&pwm2 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pwm_led>; + status = "okay"; +}; + &snvs_pwrkey { status = "okay"; }; |