[PATCH 3/8] dt-bindings: input: microchip,cap11xx: Cleanup and refine LED constraints

[Jun Yan]

Add detailed datasheet links for all supported CAP11xx devices.

Unify LED node pattern to support all chip variants in preparation
for CAP1114 support.

Remove redundant LED properties inherited from common.yaml

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     | 51 ++++++++++++++-----
 1 file changed, 37 insertions(+), 14 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml b/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml
index 7ade03f1b32b..99d00f572a2d 100644
--- a/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml
+++ b/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml
@@ -10,6 +10,15 @@ description: |
   The Microchip CAP1xxx Family of RightTouchTM multiple-channel capacitive
   touch controllers and LED drivers. The device communication via I2C only.
 
+  For more product information please see the links below:
+    CAP1106: https://ww1.microchip.com/downloads/en/DeviceDoc/00001624B.pdf
+    CAP1126: https://ww1.microchip.com/downloads/en/DeviceDoc/00001623B.pdf
+    CAP1188: https://ww1.microchip.com/downloads/en/DeviceDoc/00001620C.pdf
+    CAP1203: https://ww1.microchip.com/downloads/en/DeviceDoc/00001572B.pdf
+    CAP1206: https://ww1.microchip.com/downloads/en/DeviceDoc/00001567B.pdf
+    CAP1293: https://ww1.microchip.com/downloads/en/DeviceDoc/00001566B.pdf
+    CAP1298: https://ww1.microchip.com/downloads/en/DeviceDoc/00001571B.pdf
+
 maintainers:
   - Rob Herring <robh@xxxxxxxxxx>
 
@@ -124,25 +133,21 @@ properties:
       The number of entries must correspond to the number of channels.
 
 patternProperties:
-  "^led@[0-7]$":
+  "^led@[0-9a-f]$":
     type: object
     description: CAP11xx LEDs
     $ref: /schemas/leds/common.yaml#
 
     properties:
       reg:
-        enum: [0, 1, 2, 3, 4, 5, 6, 7]
-
-      label: true
-
-      linux,default-trigger: true
-
-      default-state: true
+        description: LED channel number
+        minimum: 0
+        maximum: 7
 
     required:
       - reg
 
-    additionalProperties: false
+    unevaluatedProperties: false
 
 allOf:
   - $ref: input.yaml
@@ -158,7 +163,20 @@ allOf:
               - microchip,cap1298
     then:
       patternProperties:
-        "^led@[0-7]$": false
+        "^led@": false
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - microchip,cap1126
+    then:
+      patternProperties:
+        "^led@":
+          properties:
+            reg:
+              maximum: 1
 
   - if:
       properties:
@@ -183,6 +201,9 @@ additionalProperties: false
 
 examples:
   - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/leds/common.h>
+
     i2c {
       #address-cells = <1>;
       #size-cells = <0>;
@@ -208,19 +229,21 @@ examples:
         #size-cells = <0>;
 
         led@0 {
-                label = "cap11xx:green:usr0";
                 reg = <0>;
+                function = LED_FUNCTION_INDICATOR;
+                color = <LED_COLOR_ID_GREEN>;
         };
 
         led@1 {
-                label = "cap11xx:green:usr1";
                 reg = <1>;
+                function = LED_FUNCTION_INDICATOR;
+                color = <LED_COLOR_ID_GREEN>;
         };
 
         led@2 {
-                label = "cap11xx:green:alive";
                 reg = <2>;
-                linux,default-trigger = "heartbeat";
+                function = LED_FUNCTION_INDICATOR;
+                color = <LED_COLOR_ID_GREEN>;
         };
       };
     };
-- 
2.54.0