linux-kernel - [PATCH 1/2] dt: bindings: leds: Add NCP5623 multi-LED Controller

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Message-Id: <20240203175910.301099-1-alkuor@gmail.com>
Date: Sat,  3 Feb 2024 12:58:51 -0500
From: Abdel Alkuor <alkuor@...il.com>
To: Pavel Machek <pavel@....cz>,
	Lee Jones <lee@...nel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Abdel Alkuor <alkuor@...il.com>,
	Jean-Jacques Hiblot <jjhiblot@...phandler.com>,
	Jacek Anaszewski <jacek.anaszewski@...il.com>,
	Alice Chen <alice_chen@...htek.com>,
	ChiaEn Wu <chiaen_wu@...htek.com>,
	ChiYuan Huang <cy_huang@...htek.com>,
	André Apitzsch <git@...tzsch.eu>,
	Lukas Bulwahn <lukas.bulwahn@...il.com>
Cc: linux-kernel@...r.kernel.org,
	linux-leds@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: [PATCH 1/2] dt: bindings: leds: Add NCP5623 multi-LED Controller

NCP5623 is DC-DC multi-LED controller which can be used for
RGB illumination or backlight LCD display. NCP5623
provides 94% peak efficiency.

Signed-off-by: Abdel Alkuor <alkuor@...il.com>
---
 .../bindings/leds/onnn,ncp5623.yaml           | 98 +++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/onnn,ncp5623.yaml

diff --git a/Documentation/devicetree/bindings/leds/onnn,ncp5623.yaml b/Documentation/devicetree/bindings/leds/onnn,ncp5623.yaml
new file mode 100644
index 000000000000..696bc7d8c8f9
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/onnn,ncp5623.yaml
@@ -0,0 +1,98 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/onnn,ncp5623.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ON Semiconductor NCP5623 multi-LED Driver
+
+maintainers:
+  - Abdel Alkuor <alkuor@...il.com>
+
+description: |
+  NCP5623 Triple Output I2C Controlled LED Driver.
+  https://www.onsemi.com/pdf/datasheet/ncp5623-d.pdf
+
+properties:
+  compatible:
+    enum:
+      - onnn,ncp5623
+
+  reg:
+    enum:
+      - 0x38
+
+  multi-led:
+    type: object
+    $ref: leds-class-multicolor.yaml#
+    unevaluatedProperties: false
+
+    properties:
+      "#address-cells":
+        const: 1
+
+      "#size-cells":
+        const: 0
+
+    patternProperties:
+      "^led@[0-2]$":
+        type: object
+        $ref: common.yaml#
+        unevaluatedProperties: false
+
+        properties:
+          reg:
+            description: Index of the LED.
+            minimum: 0
+            maximum: 2
+
+        required:
+          - reg
+          - color
+
+    required:
+      - "#address-cells"
+      - "#size-cells"
+
+required:
+  - compatible
+  - reg
+  - multi-led
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/leds/common.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        led-controller@38 {
+            compatible = "onnn,ncp5623";
+            reg = <0x38>;
+
+            multi-led {
+                color = <LED_COLOR_ID_RGB>;
+
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                led@0 {
+                    reg = <0>;
+                    color = <LED_COLOR_ID_RED>;
+                };
+
+                led@1 {
+                    reg = <1>;
+                    color = <LED_COLOR_ID_GREEN>;
+                };
+
+                led@2 {
+                    reg = <2>;
+                    color = <LED_COLOR_ID_BLUE>;
+                };
+            };
+        };
+    };
-- 
2.34.1