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boards: arm: twr_ke18f: add PWM LEDs

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Add support for driving the on-board LEDs present on the NXP TWR-KE18F
development board using FlexTimer (FTM) PWM modulation.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
This commit is contained in:
Henrik Brix Andersen 2019-05-19 16:06:06 +02:00 • committed by Maureen Helm
commit 9fae4b0310
5 changed files with 81 additions and 3 deletions
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48
boards/arm/twr_ke18f/twr_ke18f.dts
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@ -21,6 +21,13 @@
led4 = &tri_red_led;
led5 = &tri_green_led;
led6 = &tri_blue_led;
pwm-led0 = &orange_pwm_led;
pwm-led1 = &yellow_pwm_led;
pwm-led2 = &green_pwm_led;
pwm-led3 = &red_pwm_led;
red-pwm-led = &tri_red_pwm_led;
green-pwm-led = &tri_green_pwm_led;
blue-pwm-led = &tri_blue_pwm_led;
sw0 = &user_button_3;
sw1 = &user_button_2;
};
@ -67,6 +74,39 @@
};
};
pwmleds {
compatible = "pwm-leds";
orange_pwm_led: led_pwm_0 {
pwms = <&ftm3 7 60000>;
label = "User PWM LED D9";
};
yellow_pwm_led: led_pwm_1 {
pwms = <&ftm3 6 60000>;
label = "User PWM LED D8";
};
green_pwm_led: led_pwm_2 {
pwms = <&ftm3 5 60000>;
label = "User PWM LED D7";
};
red_pwm_led: led_pwm_3 {
pwms = <&ftm3 4 60000>;
label = "User PWM LED D6";
};
tri_red_pwm_led: led_pwm_4 {
pwms = <&ftm0 1 60000>;
label = "User Tricolor PWM LED D5 (Red)";
};
tri_green_pwm_led: led_pwm_5 {
pwms = <&ftm0 0 60000>;
label = "User Tricolor PWM LED D5 (Green)";
};
tri_blue_pwm_led: led_pwm_6 {
pwms = <&ftm0 5 60000>;
label = "User Tricolor PWM LED D5 (Blue)";
};
};
gpio_keys {
compatible = "gpio-keys";
user_button_2: button_0 {
@ -118,6 +158,14 @@
current-speed = <115200>;
};
&ftm0 {
status = "okay";
};
&ftm3 {
status = "okay";
};
&i2c0 {
status = "okay";