dt-bindings: mfd: twl: Convert trivial subdevices to json-schema

Convert subdevices with just an interrupt and compatbile to
json-schema and wire up already converted subdevices.
RTC is available in all variants, so allow it unconditionally.
GPADC binding for TWL603X uses two different compatibles, so
specify just the compatible and do not include it.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240401081831.456828-1-andreas@kemnade.info
Signed-off-by: Lee Jones <lee@kernel.org>

Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt

@@ -1,21 +0,0 @@
-Texas Instruments TWL family (twl4030) pwrbutton module
-
-This module is part of the TWL4030. For more details about the whole
-chip see Documentation/devicetree/bindings/mfd/ti,twl.yaml.
-
-This module provides a simple power button event via an Interrupt.
-
-Required properties:
-- compatible: should be one of the following
-   - "ti,twl4030-pwrbutton": For controllers compatible with twl4030
-- interrupts: should be one of the following
-   - <8>: For controllers compatible with twl4030
-
-Example:
-
-&twl {
-	twl_pwrbutton: pwrbutton {
-		compatible = "ti,twl4030-pwrbutton";
-		interrupts = <8>;
-	};
-};

Documentation/devicetree/bindings/mfd/ti,twl.yaml

@@ -15,6 +15,67 @@ description: |
   USB transceiver or Audio amplifier.
   These chips are connected to an i2c bus.
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: ti,twl4030
+    then:
+      properties:
+        madc:
+          type: object
+          $ref: /schemas/iio/adc/ti,twl4030-madc.yaml
+          unevaluatedProperties: false
+
+        bci:
+          type: object
+          $ref: /schemas/power/supply/twl4030-charger.yaml
+          unevaluatedProperties: false
+
+        pwrbutton:
+          type: object
+          additionalProperties: false
+          properties:
+            compatible:
+              const: ti,twl4030-pwrbutton
+            interrupts:
+              items:
+                - items:
+                    const: 8
+
+        watchdog:
+          type: object
+          additionalProperties: false
+          properties:
+            compatible:
+              const: ti,twl4030-wdt
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: ti,twl6030
+    then:
+      properties:
+        gpadc:
+          type: object
+          properties:
+            compatible:
+              const: ti,twl6030-gpadc
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: ti,twl6032
+    then:
+      properties:
+        gpadc:
+          type: object
+          properties:
+            compatible:
+              const: ti,twl6032-gpadc
+
 properties:
   compatible:
     description:
@@ -42,7 +103,16 @@ properties:
   "#clock-cells":
     const: 1
 
-additionalProperties: false
+  rtc:
+    type: object
+    additionalProperties: false
+    properties:
+      compatible:
+        const: ti,twl4030-rtc
+      interrupts:
+        maxItems: 1
+
+unevaluatedProperties: false
 
 required:
   - compatible

Documentation/devicetree/bindings/rtc/twl-rtc.txt

@@ -1,11 +0,0 @@
-* Texas Instruments TWL4030/6030 RTC
-
-Required properties:
-- compatible : Should be "ti,twl4030-rtc"
-- interrupts : Should be the interrupt number.
-
-Example:
-	rtc {
-		compatible = "ti,twl4030-rtc";
-		interrupts = <11>;
-	};

Documentation/devicetree/bindings/watchdog/twl4030-wdt.txt

@@ -1,10 +0,0 @@
-Device tree bindings for twl4030-wdt driver (TWL4030 watchdog)
-
-Required properties:
-	compatible = "ti,twl4030-wdt";
-
-Example:
-
-watchdog {
-	compatible = "ti,twl4030-wdt";
-};