From: Chris Morgan <macromorgan@xxxxxxxxxxx>
Update the blue LED to be controlled via pwm to enable control of LED
brightness. Add red LED as a GPIO controlled LED. The documentation
stated "label" was depreciated so function and color was used instead.
The LED names (led-2 and led-3) are given because that is what they
are numbered on the board itself; LED 1 is wired directly into an
always on regulator and is not controllable. LED 2 is labelled "alive"
on the board and documentation recommends we set the function as
status over other miscellaneous functions. LED 3 is labelled "chg" on
the board.
Signed-off-by: Chris Morgan <macromorgan@xxxxxxxxxxx>
---
.../boot/dts/rockchip/rk3326-odroid-go.dtsi | 33 +++++++++++++++----
1 file changed, 26 insertions(+), 7 deletions(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3326-odroid-go.dtsi b/arch/arm64/boot/dts/rockchip/rk3326-odroid-go.dtsi
index 802be64626d6..8ea2af72a7bc 100644
--- a/arch/arm64/boot/dts/rockchip/rk3326-odroid-go.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3326-odroid-go.dtsi
@@ -8,6 +8,7 @@
/dts-v1/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
#include <dt-bindings/pinctrl/rockchip.h>
#include "rk3326.dtsi"
@@ -113,15 +114,29 @@ button-sw16 {
};
};
- leds: gpio-leds {
+/* led-1 is wired directly to output of always-on regulator */
+
+ gpio_led: gpio-leds {
compatible = "gpio-leds";
pinctrl-names = "default";
- pinctrl-0 = <&blue_led_pin>;
+ pinctrl-0 = <&red_led_pin>;
+
+ red_led: led-3 {
+ color = <LED_COLOR_ID_RED>;
+ gpios = <&gpio0 RK_PB5 GPIO_ACTIVE_HIGH>;
+ function = LED_FUNCTION_CHARGING;
+ };
+ };
- blue_led: led-0 {
- label = "blue:heartbeat";
- gpios = <&gpio0 RK_PC1 GPIO_ACTIVE_HIGH>;
+ pwm_led: led-controller {
+ compatible = "pwm-leds";
+
+ blue_led: led-2 {
+ color = <LED_COLOR_ID_BLUE>;
+ function = LED_FUNCTION_STATUS;
linux,default-trigger = "heartbeat";
+ max-brightness = <255>;
+ pwms = <&pwm3 0 25000 0>;
};
};
@@ -465,6 +480,10 @@ &pwm1 {
status = "okay";
};
+&pwm3 {
+ status = "okay";
+};
+
&saradc {
vref-supply = <&vcc_1v8>;
status = "okay";
@@ -569,8 +588,8 @@ hp_det: hp-det {
};
leds {
- blue_led_pin: blue-led-pin {
- rockchip,pins = <0 RK_PC1 RK_FUNC_GPIO &pcfg_pull_none>;
+ red_led_pin: red-led-pin {
+ rockchip,pins = <0 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
--
2.25.1
