dt-bindings: Drop unnecessary *-supply schemas properties

*-supply properties are always a single phandle, so binding schemas
don't need a type $ref nor 'maxItems'.

A meta-schema check for this is pending once these existing cases are
fixed.

Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-iio@vger.kernel.org
Cc: linux-input@vger.kernel.org
Cc: linux-media@vger.kernel.org
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20201221234659.824881-1-robh@kernel.orgSigned-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/display/bridge/anx6345.yaml

@@ -26,11 +26,9 @@ properties:
     description: GPIO connected to active low reset
 
   dvdd12-supply:
-    maxItems: 1
     description: Regulator for 1.2V digital core power.
 
   dvdd25-supply:
-    maxItems: 1
     description: Regulator for 2.5V digital core power.
 
   ports:

Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml

@@ -35,11 +35,9 @@ properties:
     maxItems: 1
 
   ovdd-supply:
-    maxItems: 1
     description: I/O voltage
 
   pwr18-supply:
-    maxItems: 1
     description: core voltage
 
   interrupts:

Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml

@@ -79,8 +79,7 @@ properties:
       The GPIO used to control the power down line of this device.
     maxItems: 1
 
-  power-supply:
-    maxItems: 1
+  power-supply: true
 
 required:
   - compatible

Documentation/devicetree/bindings/display/bridge/ps8640.yaml

@@ -35,11 +35,9 @@ properties:
     description: GPIO connected to active low reset.
 
   vdd12-supply:
-    maxItems: 1
     description: Regulator for 1.2V digital core power.
 
   vdd33-supply:
-    maxItems: 1
     description: Regulator for 3.3V digital core power.
 
   ports:

Documentation/devicetree/bindings/display/bridge/simple-bridge.yaml

@@ -60,7 +60,6 @@ properties:
     description: GPIO controlling bridge enable
 
   vdd-supply:
-    maxItems: 1
     description: Power supply for the bridge
 
 required:

Documentation/devicetree/bindings/display/bridge/thine,thc63lvd1024.yaml

@@ -74,7 +74,6 @@ properties:
     description: Power down GPIO signal, pin name "/PDWN", active low.
 
   vcc-supply:
-    maxItems: 1
     description:
       Power supply for the TTL output, TTL CLOCKOUT signal, LVDS input, PLL and
       digital circuitry.

Documentation/devicetree/bindings/display/bridge/toshiba,tc358775.yaml

@@ -28,11 +28,9 @@ properties:
     description: i2c address of the bridge, 0x0f
 
   vdd-supply:
-    maxItems: 1
     description: 1.2V LVDS Power Supply
 
   vddio-supply:
-    maxItems: 1
     description: 1.8V IO Power Supply
 
   stby-gpios:

Documentation/devicetree/bindings/iio/adc/lltc,ltc2496.yaml

@@ -17,8 +17,7 @@ properties:
       - lltc,ltc2496
 
   vref-supply:
-    description: phandle to an external regulator providing the reference voltage
-    $ref: /schemas/types.yaml#/definitions/phandle
+    description: Power supply for the reference voltage
 
   reg:
     description: spi chipselect number according to the usual spi bindings

Documentation/devicetree/bindings/iio/humidity/ti,hdc2010.yaml

@@ -22,8 +22,7 @@ properties:
       - ti,hdc2010
       - ti,hdc2080
 
-  vdd-supply:
-    maxItems: 1
+  vdd-supply: true
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/input/fsl,mpr121-touchkey.yaml

@@ -31,8 +31,7 @@ properties:
   interrupts:
     maxItems: 1
 
-  vdd-supply:
-    maxItems: 1
+  vdd-supply: true
 
   linux,keycodes:
     minItems: 1

Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml

@@ -55,8 +55,7 @@ properties:
 
   wakeup-source: true
 
-  vcc-supply:
-    maxItems: 1
+  vcc-supply: true
 
   gain:
     description: Allows setting the sensitivity in the range from 0 to 31.

Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml

@@ -40,7 +40,6 @@ properties:
 
   poc-supply:
     description: Regulator providing Power over Coax to the cameras
-    maxItems: 1
 
   enable-gpios:
     description: GPIO connected to the \#PWDN pin with inverted polarity

Documentation/devicetree/bindings/media/i2c/mipi-ccs.yaml

@@ -39,15 +39,12 @@ properties:
 
   vana-supply:
     description: Analogue voltage supply (VANA), sensor dependent.
-    maxItems: 1
 
   vcore-supply:
     description: Core voltage supply (VCore), sensor dependent.
-    maxItems: 1
 
   vio-supply:
     description: I/O voltage supply (VIO), sensor dependent.
-    maxItems: 1
 
   clocks:
     description: External clock to the sensor.

Documentation/devicetree/bindings/media/i2c/sony,imx214.yaml

@@ -37,15 +37,12 @@ properties:
 
   vdddo-supply:
     description: Chip digital IO regulator (1.8V).
-    maxItems: 1
 
   vdda-supply:
     description: Chip analog regulator (2.7V).
-    maxItems: 1
 
   vddd-supply:
     description: Chip digital core regulator (1.12V).
-    maxItems: 1
 
   flash-leds:
     description: See ../video-interfaces.txt

Documentation/devicetree/bindings/media/i2c/sony,imx274.yaml

@@ -33,15 +33,12 @@ properties:
 
   vana-supply:
     description: Sensor 2.8 V analog supply.
-    maxItems: 1
 
   vdig-supply:
     description: Sensor 1.8 V digital core supply.
-    maxItems: 1
 
   vddl-supply:
     description: Sensor digital IO 1.2 V supply.
-    maxItems: 1
 
   port:
     type: object

Documentation/devicetree/bindings/mfd/st,stmfx.yaml

@@ -26,8 +26,7 @@ properties:
 
   drive-open-drain: true
 
-  vdd-supply:
-    maxItems: 1
+  vdd-supply: true
 
   pinctrl:
     type: object

Documentation/devicetree/bindings/regulator/anatop-regulator.yaml

@@ -59,7 +59,6 @@ properties:
     description: u32 value representing regulator enable bit offset.
 
   vin-supply:
-    $ref: '/schemas/types.yaml#/definitions/phandle'
     description: input supply phandle.
 
 required: