[PATCH v1 1/2] dt-bindings: leds: Add LED1202 LED Controller

[PATCH v1 1/2] dt-bindings: leds: Add LED1202 LED Controller

[Vicentiu Galanopulo]

The LED1202 is a 12-channel low quiescent current LED driver with:
  * Supply range from 2.6 V to 5 V
  * 20 mA current capability per channel
  * 1.8 V compatible I2C control interface
  * 8-bit analog dimming individual control
  * 12-bit local PWM resolution
  * 8 programmable patterns

Signed-off-by: Vicentiu Galanopulo <vicentiu.galanopulo@remote-tech.co.uk>
---
 .../devicetree/bindings/leds/st,led1202.yml   | 135 ++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/st,led1202.yml

diff --git a/Documentation/devicetree/bindings/leds/st,led1202.yml b/Documentation/devicetree/bindings/leds/st,led1202.yml
new file mode 100644
index 000000000000..c0d5b5d37495
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/st,led1202.yml
@@ -0,0 +1,135 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/st,led1202.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ST LED1202 LED controllers
+
+maintainers:
+  - Vicentiu Galanopulo <vicentiu.galanopulo@remote-tech.co.uk>
+
+description:
+  The LED1202 is a 12-channel low quiescent current LED controller
+  programmable via I2C; The output current can be adjusted separately
+  for each channel by 8-bit analog and 12-bit digital dimming control.
+
+  Datasheet available at
+  https://www.st.com/en/power-management/led1202.html
+
+properties:
+  compatible:
+    enum:
+      - st,led1202
+
+  reg:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+patternProperties:
+  "^led@[0-9a-f]+$":
+    type: object
+    $ref: common.yaml#
+    unevaluatedProperties: false
+
+    properties:
+      reg:
+        minimum: 0
+        maximum: 11
+
+    required:
+      - reg
+
+additionalProperties: true
+
+examples:
+  - |
+    #include <dt-bindings/leds/common.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        led-controller@58 {
+            compatible = "st,led1202";
+            reg = <0x58>;
+            address-cells = <1>;
+            size-cells = <0>;
+
+            led@0 {
+                reg = <0>;
+                label = "led1_r";
+                active = <1>;
+            };
+
+            led@1 {
+                reg = <1>;
+                label = "led1_g";
+                active = <1>;
+            };
+
+            led@2 {
+                reg = <2>;
+                label = "led1_b";
+                active = <1>;
+            };
+
+            led@3 {
+                reg = <3>;
+                label = "led2_r";
+                active = <1>;
+            };
+
+            led@4 {
+                reg = <4>;
+                label = "led2_g";
+                active = <1>;
+            };
+
+            led@5 {
+                reg = <5>;
+                label = "led2_b";
+                active = <1>;
+            };
+
+            led@6 {
+                reg = <6>;
+                label = "led3_r";
+                active = <1>;
+            };
+
+            led@7 {
+                reg = <7>;
+                label = "led3_g";
+                active = <1>;
+            };
+
+            led@8 {
+                reg = <8>;
+                label = "led3_b";
+                active = <1>;
+            };
+
+            led@9 {
+                reg = <9>;
+                active = <0>;
+            };
+
+            led@a {
+                reg = <10>;
+                active = <0>;
+            };
+
+            led@b {
+                reg = <11>;
+                active = <0>;
+            };
+        };
+    };
+
+...
-- 
2.25.1

Re: [PATCH v1 1/2] dt-bindings: leds: Add LED1202 LED Controller

[Krzysztof Kozlowski]

On 17/06/2024 23:16, Vicentiu Galanopulo wrote:
> +patternProperties:
> +  "^led@[0-9a-f]+$":
> +    type: object
> +    $ref: common.yaml#
> +    unevaluatedProperties: false
> +
> +    properties:
> +      reg:
> +        minimum: 0
> +        maximum: 11
> +
> +    required:
> +      - reg
> +
> +additionalProperties: true

This must be false. You can use other bindings as reference: none of
final device schemas have here true.

> +
> +examples:
> +  - |
> +    #include <dt-bindings/leds/common.h>
> +
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        led-controller@58 {
> +            compatible = "st,led1202";
> +            reg = <0x58>;
> +            address-cells = <1>;
> +            size-cells = <0>;
> +
> +            led@0 {
> +                reg = <0>;
> +                label = "led1_r";

No, use color and function instead.

> +                active = <1>;

What's that?

Best regards,
Krzysztof