Messages in this thread |  | | Subject | Re: [PATCH v1 4/4] riscv: dts: sifive unmatched: Add PWM controlled LEDs | From | Ron Economos <> | Date | Fri, 8 Jul 2022 02:21:27 -0700 |
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On 7/5/22 2:01 PM, Emil Renner Berthing wrote: > This adds the two PWM controlled LEDs to the HiFive Unmatched device > tree. D12 is just a regular green diode, but D2 is an RGB diode with 3 > PWM inputs controlling the three different colours. > > Signed-off-by: Emil Renner Berthing <emil.renner.berthing@canonical.com> > --- > .../boot/dts/sifive/hifive-unmatched-a00.dts | 42 +++++++++++++++++++ > 1 file changed, 42 insertions(+) > > diff --git a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts > index c4ed9efdff03..beaefe74755a 100644 > --- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts > +++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts > @@ -4,6 +4,8 @@ > #include "fu740-c000.dtsi" > #include <dt-bindings/gpio/gpio.h> > #include <dt-bindings/interrupt-controller/irq.h> > +#include <dt-bindings/leds/common.h> > +#include <dt-bindings/pwm/pwm.h> > > /* Clock frequency (in Hz) of the PCB crystal for rtcclk */ > #define RTCCLK_FREQ 1000000 > @@ -44,6 +46,46 @@ gpio-poweroff { > compatible = "gpio-poweroff"; > gpios = <&gpio 2 GPIO_ACTIVE_LOW>; > }; > + > + led-controller-1 { > + compatible = "pwm-leds"; > + > + led-d12 { > + pwms = <&pwm0 0 7812500 PWM_POLARITY_INVERTED>; > + active-low; > + color = <LED_COLOR_ID_GREEN>; > + max-brightness = <255>; > + label = "d12"; > + }; > + }; > + > + led-controller-2 { > + compatible = "pwm-leds-multicolor"; > + > + multi-led { > + color = <LED_COLOR_ID_RGB>; > + max-brightness = <255>; > + label = "d2"; > + > + led-red { > + pwms = <&pwm0 2 7812500 PWM_POLARITY_INVERTED>; > + active-low; > + color = <LED_COLOR_ID_RED>; > + }; > + > + led-green { > + pwms = <&pwm0 1 7812500 PWM_POLARITY_INVERTED>; > + active-low; > + color = <LED_COLOR_ID_GREEN>; > + }; > + > + led-blue { > + pwms = <&pwm0 3 7812500 PWM_POLARITY_INVERTED>; > + active-low; > + color = <LED_COLOR_ID_BLUE>; > + }; > + }; > + }; > }; > > &uart0 {
Tested on HiFive Unmatched with both udev and systemd. Works good.
Tested-by: Ron Economos <re@w6rz.net>
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