[PATCH] dt-bindings: leds: class-multicolor: reference class directly in multi-led node

[Krzysztof Kozlowski]

The leds/common.yaml is referenced directly in each LED node, which
leads to people doing the same with leds/leds-class-multicolor.yaml.
This is not correct because leds-class-multicolor.yaml defined multi-led
property and its children.  Some schemas implemented this incorrect.

Rework this to match same behavior common.yaml, so expect the multi-led
node to reference the leds-class-multicolor.yaml.  Fixing allows to add
unevaluatedProperties:false.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>

---

This will conflict with any new users of leds-class-multicolor, e.g.:
https://lore.kernel.org/all/20220623115631.22209-4-peterwu.pub@xxxxxxxxx/

The new users should be updated to match the usage introduced here.
---
 .../leds/cznic,turris-omnia-leds.yaml         |  2 ++
 .../bindings/leds/leds-class-multicolor.yaml  | 32 +++++++++----------
 .../devicetree/bindings/leds/leds-lp50xx.yaml |  2 ++
 .../bindings/leds/leds-pwm-multicolor.yaml    |  5 ++-
 .../bindings/leds/leds-qcom-lpg.yaml          |  2 ++
 5 files changed, 24 insertions(+), 19 deletions(-)

diff --git a/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml b/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml
index 9362b1ef9e88..14bebe1ad8f8 100644
--- a/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml
+++ b/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml
@@ -33,6 +33,8 @@ patternProperties:
   "^multi-led@[0-9a-b]$":
     type: object
     $ref: leds-class-multicolor.yaml#
+    unevaluatedProperties: false
+
     description:
       This node represents one of the RGB LED devices on Turris Omnia.
       No subnodes need to be added for subchannels since this controller only
diff --git a/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml b/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml
index f41d021ed677..12693483231f 100644
--- a/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml
@@ -19,22 +19,22 @@ description: |
   LED class.  Common LED nodes and properties are inherited from the common.yaml
   within this documentation directory.
 
-patternProperties:
-  "^multi-led(@[0-9a-f])?$":
-    type: object
-    description: Represents the LEDs that are to be grouped.
-    properties:
-      color:
-        description: |
-          For multicolor LED support this property should be defined as either
-          LED_COLOR_ID_RGB or LED_COLOR_ID_MULTI which can be found in
-          include/linux/leds/common.h.
-        enum: [ 8, 9 ]
-
-    $ref: "common.yaml#"
-
-    required:
-      - color
+properties:
+  $nodename:
+    pattern: "^multi-led(@[0-9a-f])?$"
+
+  color:
+    description: |
+      For multicolor LED support this property should be defined as either
+      LED_COLOR_ID_RGB or LED_COLOR_ID_MULTI which can be found in
+      include/linux/leds/common.h.
+    enum: [ 8, 9 ]
+
+required:
+  - color
+
+allOf:
+  - $ref: "common.yaml#"
 
 additionalProperties: true
 
diff --git a/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml b/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml
index d11898567313..d44bf48b3c2f 100644
--- a/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml
@@ -56,6 +56,8 @@ patternProperties:
   '^multi-led@[0-9a-f]$':
     type: object
     $ref: leds-class-multicolor.yaml#
+    unevaluatedProperties: false
+
     properties:
       reg:
         minItems: 1
diff --git a/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml b/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml
index fdaf04e03a8d..e9fdecdaf84d 100644
--- a/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml
@@ -19,6 +19,8 @@ properties:
 
   multi-led:
     type: object
+    $ref: leds-class-multicolor.yaml#
+    unevaluatedProperties: false
 
     patternProperties:
       "^led-[0-9a-z]+$":
@@ -42,9 +44,6 @@ properties:
 required:
   - compatible
 
-allOf:
-  - $ref: leds-class-multicolor.yaml#
-
 additionalProperties: false
 
 examples:
diff --git a/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml b/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml
index 409a4c7298e1..fe336fa16518 100644
--- a/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml
@@ -58,6 +58,8 @@ properties:
   multi-led:
     type: object
     $ref: leds-class-multicolor.yaml#
+    unevaluatedProperties: false
+
     properties:
       "#address-cells":
         const: 1
-- 
2.34.1