dt-bindings: hwmon: ibm,cffps: move to trivial devices

The IBM Common Form Factor Power Supply Versions 1 and 2 bindings are
trivial, so they can be integrated into trivial devices bindings.
Signed-off-by: NKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: NRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210921102832.143352-3-krzysztof.kozlowski@canonical.comSigned-off-by: NGuenter Roeck <linux@roeck-us.net>

Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt

-Device-tree bindings for IBM Common Form Factor Power Supply Versions 1 and 2
------------------------------------------------------------------------------
-
-Required properties:
- - compatible				: Must be one of the following:
-						"ibm,cffps1"
-						"ibm,cffps2"
-						or "ibm,cffps" if the system
-						must support any version of the
-						power supply
- - reg = < I2C bus address >;		: Address of the power supply on the
-					  I2C bus.
-
-Example:
-
-    i2c-bus@100 {
-        #address-cells = <1>;
-        #size-cells = <0>;
-        #interrupt-cells = <1>;
-        < more properties >
-
-        power-supply@68 {
-            compatible = "ibm,cffps1";
-            reg = <0x68>;
-        };
-    };

Documentation/devicetree/bindings/trivial-devices.yaml

@@ -113,6 +113,12 @@ properties:
           - mps,mp2975
             # Honeywell Humidicon HIH-6130 humidity/temperature sensor
           - honeywell,hi6130
+            # IBM Common Form Factor Power Supply Versions (all versions)
+          - ibm,cffps
+            # IBM Common Form Factor Power Supply Versions 1
+          - ibm,cffps1
+            # IBM Common Form Factor Power Supply Versions 2
+          - ibm,cffps2
             # Infineon IR36021 digital POL buck controller
           - infineon,ir36021
             # Infineon IR38064 Voltage Regulator

MAINTAINERS

@@ -14910,7 +14910,6 @@ S:	Maintained
 W:	http://hwmon.wiki.kernel.org/
 W:	http://www.roeck-us.net/linux/drivers/
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git
-F:	Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt
 F:	Documentation/devicetree/bindings/hwmon/ltc2978.txt
 F:	Documentation/devicetree/bindings/hwmon/max31785.txt
 F:	Documentation/hwmon/adm1275.rst