linux-kernel - [PATCH v10 2/5] dt-bindings: backlight: gpio-backlight: allow multiple GPIOs

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Message-Id: <20251230130227.3503590-3-tessolveupstream@gmail.com>
Date: Tue, 30 Dec 2025 18:32:24 +0530
From: Sudarshan Shetty <tessolveupstream@...il.com>
To: andersson@...nel.org,
	konradybcio@...nel.org
Cc: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Sudarshan Shetty <tessolveupstream@...il.com>
Subject: [PATCH v10 2/5] dt-bindings: backlight: gpio-backlight: allow multiple GPIOs

Update the gpio-backlight binding to support configurations that require
more than one GPIO for enabling/disabling the backlight.

Signed-off-by: Sudarshan Shetty <tessolveupstream@...il.com>
---
 .../bindings/leds/backlight/gpio-backlight.yaml      | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml b/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml
index 584030b6b0b9..1483ce4a3480 100644
--- a/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml
+++ b/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml
@@ -17,7 +17,8 @@ properties:
 
   gpios:
     description: The gpio that is used for enabling/disabling the backlight.
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
 
   default-on:
     description: enable the backlight at boot.
@@ -38,4 +39,13 @@ examples:
         default-on;
     };
 
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    backlight {
+      compatible = "gpio-backlight";
+      gpios = <&gpio3 4 GPIO_ACTIVE_HIGH>,
+              <&gpio3 5 GPIO_ACTIVE_HIGH>;
+      default-on;
+    };
+
 ...
-- 
2.34.1