DT: leds: Add an optional property named 'shutdown-gpios'

The chip enters hardware shutdown when the SDB pin is pulled low.
The chip releases hardware shutdown when the SDB pin is pulled high.

Signed-off-by: Grant Feng <von81@163.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>

diff --git a/Documentation/devicetree/bindings/leds/leds-is31fl319x.txt b/Documentation/devicetree/bindings/leds/leds-is31fl319x.txt
index fc2603484544d41178fcf89dd967ed75f4621740..676d43ec816924cb17626ffac389e45b84d2a924 100644 (file)
--- a/Documentation/devicetree/bindings/leds/leds-is31fl319x.txt
+++ b/Documentation/devicetree/bindings/leds/leds-is31fl319x.txt
@@ -16,6 +16,7 @@ Optional properties:
 - audio-gain-db : audio gain selection for external analog modulation input.
        Valid values: 0 - 21, step by 3 (rounded down)
        Default: 0
+- shutdown-gpios : Specifier of the GPIO connected to SDB pin of the chip.
 
 Each led is represented as a sub-node of the issi,is31fl319x device.
 There can be less leds subnodes than the chip can support but not more.
@@ -44,6 +45,7 @@ fancy_leds: leds@65 {
        #address-cells = <1>;
        #size-cells = <0>;
        reg = <0x65>;
+       shutdown-gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
 
        red_aux: led@1 {
                label = "red:aux";