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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
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