dt-bindings: leds: lp55xx: rework to match multi-led

The binding allows two type of LEDs - single and multi-color.  They
differ with properties, so fix the bindings to accept both cases.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221127204058.57111-5-krzysztof.kozlowski@linaro.orgSigned-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/leds/leds-lp55xx.yaml

@@ -67,9 +67,50 @@ properties:
     const: 0
 
 patternProperties:
-  "(^led@[0-9a-f]$|led)":
+  '^multi-led@[0-8]$':
+    type: object
+    $ref: leds-class-multicolor.yaml#
+    unevaluatedProperties: false
+
+    properties:
+      reg:
+        maximum: 8
+
+      '#address-cells':
+        const: 1
+
+      '#size-cells':
+        const: 0
+
+    patternProperties:
+      "^led@[0-8]$":
         type: object
         $ref: common.yaml#
+        unevaluatedProperties: false
+
+        properties:
+          led-cur:
+            $ref: /schemas/types.yaml#/definitions/uint8
+            description: |
+              Current setting at each LED channel (mA x10, 0 if LED is not connected)
+            minimum: 0
+            maximum: 255
+
+          max-cur:
+            $ref: /schemas/types.yaml#/definitions/uint8
+            description: Maximun current at each LED channel.
+
+          reg:
+            maximum: 8
+
+        required:
+          - reg
+
+  "^led@[0-8]$":
+    type: object
+    $ref: common.yaml#
+    unevaluatedProperties: false
+
     properties:
       led-cur:
         $ref: /schemas/types.yaml#/definitions/uint8