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+LEDs connected to GPIO lines
+
+Required properties:
+- compatible : should be "gpio-leds".
+
+Each LED is represented as a sub-node of the gpio-leds device. Each
+node's name represents the name of the corresponding LED.
+
+LED sub-node properties:
+- gpios : Should specify the LED's GPIO, see "gpios property" in
+ Documentation/devicetree/bindings/gpio/gpio.txt. Active low LEDs should be
+ indicated using flags in the GPIO specifier.
+- label : (optional)
+ see Documentation/devicetree/bindings/leds/common.txt
+- linux,default-trigger : (optional)
+ see Documentation/devicetree/bindings/leds/common.txt
+- default-state: (optional) The initial state of the LED.
+ see Documentation/devicetree/bindings/leds/common.txt
+- retain-state-suspended: (optional) The suspend state can be retained.Such
+ as charge-led gpio.
+- retain-state-shutdown: (optional) Retain the state of the LED on shutdown.
+ Useful in BMC systems, for example when the BMC is rebooted while the host
+ remains up.
+- panic-indicator : (optional)
+ see Documentation/devicetree/bindings/leds/common.txt
+
+Examples:
+
+#include <dt-bindings/gpio/gpio.h>
+
+leds {
+ compatible = "gpio-leds";
+ hdd {
+ label = "Disk Activity";
+ gpios = <&mcu_pio 0 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "disk-activity";
+ };
+
+ fault {
+ gpios = <&mcu_pio 1 GPIO_ACTIVE_HIGH>;
+ /* Keep LED on if BIOS detected hardware fault */
+ default-state = "keep";
+ };
+};
+
+run-control {
+ compatible = "gpio-leds";
+ red {
+ gpios = <&mpc8572 6 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+ green {
+ gpios = <&mpc8572 7 GPIO_ACTIVE_HIGH>;
+ default-state = "on";
+ };
+};
+
+leds {
+ compatible = "gpio-leds";
+
+ charger-led {
+ gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "max8903-charger-charging";
+ retain-state-suspended;
+ };
+};