[PATCH v1 2/2] update binding doc of leds-gpio.txt

[Robin Gong <b38343@xxxxxxxxxxxxx>]

Update the binding doc for new property: "retain-state-suspended"

Signed-off-by: Robin Gong <b38343@xxxxxxxxxxxxx>
---
 .../devicetree/bindings/leds/leds-gpio.txt         |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/Documentation/devicetree/bindings/leds/leds-gpio.txt b/Documentation/devicetree/bindings/leds/leds-gpio.txt
index df1b308..f77148f 100644
--- a/Documentation/devicetree/bindings/leds/leds-gpio.txt
+++ b/Documentation/devicetree/bindings/leds/leds-gpio.txt
@@ -21,6 +21,8 @@ LED sub-node properties:
   on).  The "keep" setting will keep the LED at whatever its current
   state is, without producing a glitch.  The default is off if this
   property is not present.
+- retain-state-suspended: (optional) The suspend state can be retained.Such
+  as charge-led gpio.
 
 Examples:
 
@@ -50,3 +52,13 @@ run-control {
 		default-state = "on";
 	};
 };
+
+leds {
+	compatible = "gpio-leds";
+
+	charger-led {
+		gpios = <&gpio1 2 0>;
+		linux,default-trigger = "max8903-charger-charging";
+		retain-state-suspended;
+	};
+};
-- 
1.7.5.4


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