linux-kernel - [PATCH 2/3] dt-bindings: leds: add binding for WL-ICLED

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Message-Id: <35c7f697070b3939727f1115d3a279e280f72cd6.1744636666.git.knezic@helmholz.com>
Date: Mon, 14 Apr 2025 15:28:50 +0200
From: Ante Knezic <ante.knezic@...mholz.de>
To: linux-leds@...r.kernel.org
Cc: lee@...nel.org,
	pavel@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	corbet@....net,
	knezic@...mholz.com,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org
Subject: [PATCH 2/3] dt-bindings: leds: add binding for WL-ICLED

From: Ante Knezic <knezic@...mholz.com>

WL-ICLED is a RGB LED with integrated IC from Wurth Elektronik.
Individual color brightness can be controlled via SPI protocol.

Signed-off-by: Ante Knezic <knezic@...mholz.com>
---
 .../bindings/leds/leds-wl-icled.yaml          | 88 +++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/leds-wl-icled.yaml

diff --git a/Documentation/devicetree/bindings/leds/leds-wl-icled.yaml b/Documentation/devicetree/bindings/leds/leds-wl-icled.yaml
new file mode 100644
index 000000000000..bf79c7a1719b
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-wl-icled.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/leds-wl-icled.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LED driver for WL-ICLEDs from Wurth Elektronik.
+
+maintainers:
+  - Ante Knezic <ante.knezic@...mholz.de>
+
+description: |
+  The WL-ICLEDs are RGB LEDs with integrated controller that can be
+  daisy-chained to arbitrary number of LEDs. Communication with LEDs is
+  via SPI interface and can be single or two wire, depending on the model.
+  For more product information please see the link below:
+  https://www.we-online.com/en/components/products/WL-ICLED
+
+properties:
+  compatible:
+    enum:
+      - we,1315x246
+      - we,1315x002
+      - we,131x000
+      - we,131161x
+      - we,131212x
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+patternProperties:
+  '^led@[0-9a-f]$':
+    type: object
+    $ref: leds-class-multicolor.yaml#
+    unevaluatedProperties: false
+
+    properties:
+      reg:
+        maxItems: 1
+        description:
+          This property denotes the LED position in the daisy chain
+          series. It is a zero based LED identifier.
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/leds/common.h>
+
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        icled@1 {
+            compatible = "we,131x000";
+            #address-cells = <1>;
+            #size-cells = <0>;
+            reg = <1>;
+            cs-gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
+
+            led@0 {
+                reg = <0>;
+                color = <LED_COLOR_ID_RGB>;
+                function = "error";
+            };
+
+            led@1 {
+                reg = <1>;
+                color = <LED_COLOR_ID_RGB>;
+                function = "warning";
+            };
+
+            led@2 {
+                reg = <2>;
+                color = <LED_COLOR_ID_RGB>;
+                function = "running";
+            };
+        };
+    };
+...
-- 
2.48.1