linux-kernel - [PATCH 2/2] dt-bindings: leds: Add new as3668 support

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Message-ID: <20250530184219.78085-6-linux@timmermann.space>
Date: Fri, 30 May 2025 20:42:22 +0200
From: Lukas Timmermann <linux@...mermann.space>
To: lee@...nel.org,
	pavel@...nel.org
Cc: linux-leds@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Lukas Timmermann <lukas@...mermann.space>
Subject: [PATCH 2/2] dt-bindings: leds: Add new as3668 support

From: Lukas Timmermann <lukas@...mermann.space>

---
 .../devicetree/bindings/leds/leds-as3668.yaml | 76 +++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/leds-as3668.yaml

diff --git a/Documentation/devicetree/bindings/leds/leds-as3668.yaml b/Documentation/devicetree/bindings/leds/leds-as3668.yaml
new file mode 100644
index 000000000000..aae6248f5712
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-as3668.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/leds-as3668.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Osram 4-channel i2c LED driver.
+
+maintainers:
+  - Lukas Timmermann <linux@...mermann.space>
+
+description: |
+  This IC can drive up to four separate LEDs.
+  Having four channels suggests it could be used with a single RGBW LED.
+
+properties:
+  compatible:
+    const: ams,as3668 
+
+  reg:
+    maxItems: 1
+    description:
+      I2C slave address
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+patternProperties:
+  "^led@[0-3]$":
+    type: object
+    $ref: common.yaml#
+    unevaluatedProperties: false
+
+    properties:
+      reg:
+        maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - "#address-cells"
+  - "#size-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/leds/common.h>
+
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      led-controller@42 {
+        compatible = "ams,as3668";
+        reg = <0x42>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        led@0 {
+          reg = <0x0>;
+          function = LED_FUNCTION_STATUS;
+          color = <LED_COLOR_ID_RED>;
+        };
+
+        led@1 {
+          reg = <0x1>;
+          function = LED_FUNCTION_STATUS;
+          color = <LED_COLOR_ID_GREEN>;
+        };
+      };
+    };
+
-- 
2.49.0