From dc0d41bd7bd35cd1ac0efe7bbe9cd29cd2fd5022 Mon Sep 17 00:00:00 2001
From: Jun Yan <jerrysteve1101@gmail.com>
Date: Wed, 17 Jun 2026 23:02:43 +0800
Subject: dt-bindings: input: microchip,cap11xx: Add microchip,cap1126 LED reg
 constraints

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@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20260617150318.753148-5-jerrysteve1101@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../devicetree/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 eabf06a1163e..798035e942af 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:
-- 
cgit v1.2.3