linux-kernel - [PATCH V1 1/2] dt-bindings: leds: pwm: Add enable-gpios property

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Message-ID: <20250702043537.220478-1-Qing-wu.Li@leica-geosystems.com.cn>
Date: Wed,  2 Jul 2025 12:35:36 +0800
From: LI Qingwu <Qing-wu.Li@...ca-geosystems.com.cn>
To: lee@...nel.org,
	pavel@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	linux-leds@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Qing-wu.Li@...ca-geosystems.com.cn
Cc: bsp-development.geo@...ca-geosystems.com
Subject: [PATCH V1 1/2] dt-bindings: leds: pwm: Add enable-gpios property

Some PWM LED chips have a dedicated enable GPIO.
This commit adds the support to specify such GPIO.

Signed-off-by: LI Qingwu <Qing-wu.Li@...ca-geosystems.com.cn>
---
 Documentation/devicetree/bindings/leds/leds-pwm.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/leds/leds-pwm.yaml b/Documentation/devicetree/bindings/leds/leds-pwm.yaml
index 61b97e8bc36d0..2d38504f74c23 100644
--- a/Documentation/devicetree/bindings/leds/leds-pwm.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-pwm.yaml
@@ -40,6 +40,14 @@ patternProperties:
           initialization. If the option is not set then max brightness is used.
         $ref: /schemas/types.yaml#/definitions/uint32
 
+      enable-gpios:
+        description:
+        enable-gpios:
+          GPIO for LED hardware enable control. Set active when brightness is
+          non-zero and inactive when brightness is zero.
+          The GPIO default state follows the "default-state" property.
+        maxItems: 1
+
     required:
       - pwms
       - max-brightness
-- 
2.43.0