[PATCH v2 4/9] dt-bindings: input: microchip,cap11xx: Add microchip,cap1126 LED reg constraints

[Jun Yan]

Apply per-chip LED channel limits:
- CAP1126: max 2 channels (0-1)
- CAP1188: max 8 channels (0-7)
- CAP1106, CAP12xx: no LED support

Signed-off-by: Jun Yan <jerrysteve1101@xxxxxxxxx>
---
 .../bindings/input/microchip,cap11xx.yaml           | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml b/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml
index 9578c7c206a2..22a292d4a880 100644
--- a/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml
+++ b/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml
@@ -171,6 +171,19 @@ allOf:
       patternProperties:
         "^led@": false
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - microchip,cap1126
+    then:
+      patternProperties:
+        "^led@":
+          properties:
+            reg:
+              maximum: 1
+
   - if:
       properties:
         compatible:
-- 
2.54.0