dt-bindings: iio: temperature: ltc2983: Fix child node unevaluated properties

The child node schemas are missing 'unevaluatedProperties' constraints,
so any unknown properties are allowed. The current structure with
multiple patternProperties schemas doesn't work for
unevaluatedProperties as each sub-schema is evaluated independently. To
fix this, move the sub-schema for all child nodes to a $defs entry and
reference it from each named child node.

Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230404205014.644336-1-robh@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml

@@ -18,6 +18,28 @@ description: |
   https://www.analog.com/media/en/technical-documentation/data-sheets/29861fa.pdf
   https://www.analog.com/media/en/technical-documentation/data-sheets/ltm2985.pdf
 
+$defs:
+  sensor-node:
+    type: object
+    description: Sensor node common constraints
+
+    properties:
+      reg:
+        description:
+          Channel number. Connects the sensor to the channel with this number
+          of the device.
+        minimum: 1
+        maximum: 20
+
+      adi,sensor-type:
+        description: Type of sensor connected to the device.
+        $ref: /schemas/types.yaml#/definitions/uint32
+
+    required:
+      - reg
+      - adi,sensor-type
+
+
 properties:
   compatible:
     oneOf:
@@ -64,28 +86,10 @@ properties:
     const: 0
 
 patternProperties:
-  "@([0-9a-f]+)$":
-    type: object
-    description: Sensor.
-
-    properties:
-      reg:
-        description:
-          Channel number. Connects the sensor to the channel with this number
-          of the device.
-        minimum: 1
-        maximum: 20
-
-      adi,sensor-type:
-        description: Type of sensor connected to the device.
-        $ref: /schemas/types.yaml#/definitions/uint32
-
-    required:
-      - reg
-      - adi,sensor-type
-
   "^thermocouple@":
-    type: object
+    $ref: '#/$defs/sensor-node'
+    unevaluatedProperties: false
+
     description: Thermocouple sensor.
 
     properties:
@@ -141,7 +145,9 @@ patternProperties:
             - adi,custom-thermocouple
 
   "^diode@":
-    type: object
+    $ref: '#/$defs/sensor-node'
+    unevaluatedProperties: false
+
     description: Diode sensor.
 
     properties:
@@ -184,7 +190,8 @@ patternProperties:
         default: 0
 
   "^rtd@":
-    type: object
+    $ref: '#/$defs/sensor-node'
+    unevaluatedProperties: false
     description: RTD sensor.
 
     properties:
@@ -282,7 +289,8 @@ patternProperties:
             - adi,custom-rtd
 
   "^thermistor@":
-    type: object
+    $ref: '#/$defs/sensor-node'
+    unevaluatedProperties: false
     description: Thermistor sensor.
 
     properties:
@@ -383,7 +391,8 @@ patternProperties:
             - adi,custom-thermistor
 
   "^adc@":
-    type: object
+    $ref: '#/$defs/sensor-node'
+    unevaluatedProperties: false
     description: Direct ADC sensor.
 
     properties:
@@ -397,7 +406,8 @@ patternProperties:
         type: boolean
 
   "^temp@":
-    type: object
+    $ref: '#/$defs/sensor-node'
+    unevaluatedProperties: false
     description: Active analog temperature sensor.
 
     properties:
@@ -426,7 +436,8 @@ patternProperties:
       - adi,custom-temp
 
   "^rsense@":
-    type: object
+    $ref: '#/$defs/sensor-node'
+    unevaluatedProperties: false
     description: Sense resistor sensor.
 
     properties: