linux-kernel - [PATCH v3 2/2] leds: Add an optional property named 'shutdown-gpios'

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Message-Id: <20200825080758.5283-2-von81@163.com>
Date:   Tue, 25 Aug 2020 16:07:58 +0800
From:   Grant Feng <von81@....com>
To:     von81@....com, jacek.anaszewski@...il.com, pavel@....cz,
        dmurphy@...com, robh+dt@...nel.org, linux-leds@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 2/2] 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@....com>
---
 Documentation/devicetree/bindings/leds/leds-is31fl32xx.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/leds/leds-is31fl32xx.txt b/Documentation/devicetree/bindings/leds/leds-is31fl32xx.txt
index 926c2117942c..ee761abb98a7 100644
--- a/Documentation/devicetree/bindings/leds/leds-is31fl32xx.txt
+++ b/Documentation/devicetree/bindings/leds/leds-is31fl32xx.txt
@@ -15,6 +15,8 @@ Required properties:
 - reg: I2C slave address
 - address-cells : must be 1
 - size-cells : must be 0
+- shutdown-gpios : (optional)
+  Specifier of the GPIO connected to SDB pin of the chip.
 
 LED sub-node properties:
 - reg : LED channel number (1..N)
@@ -31,6 +33,7 @@ is31fl3236: led-controller@3c {
 	reg = <0x3c>;
 	#address-cells = <1>;
 	#size-cells = <0>;
+	shutdown-gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
 
 	led@1 {
 		reg = <1>;
-- 
2.17.1