dt-bindings: hwmon: Add lltc ltc4286 driver bindings

Add a device tree bindings for ltc4286 device.

Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@Wiwynn.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20231123015440.199822-2-Delphine_CC_Chiu@Wiwynn.com
[groeck: Fixed path to ltc4286.rst]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Documentation/devicetree/bindings/hwmon/lltc,ltc4286.yaml

@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/lltc,ltc4286.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LTC4286 power monitors
+
+maintainers:
+  - Delphine CC Chiu <Delphine_CC_Chiu@Wiwynn.com>
+
+properties:
+  compatible:
+    enum:
+      - lltc,ltc4286
+      - lltc,ltc4287
+
+  reg:
+    maxItems: 1
+
+  adi,vrange-low-enable:
+    description:
+      This property is a bool parameter to represent the
+      voltage range is 25.6 volts or 102.4 volts for this chip.
+      The default is 102.4 volts.
+    type: boolean
+
+  shunt-resistor-micro-ohms:
+    description:
+      Resistor value micro-ohms.
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        power-monitor@40 {
+            compatible = "lltc,ltc4286";
+            reg = <0x40>;
+            adi,vrange-low-enable;
+            shunt-resistor-micro-ohms = <300>;
+        };
+    };

MAINTAINERS

@@ -12577,6 +12577,16 @@ S:	Maintained
 F:	Documentation/hwmon/ltc4261.rst
 F:	drivers/hwmon/ltc4261.c
 
+LTC4286 HARDWARE MONITOR DRIVER
+M:	Delphine CC Chiu <Delphine_CC_Chiu@Wiwynn.com>
+L:	linux-i2c@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/hwmon/lltc,ltc4286.yaml
+F:	Documentation/hwmon/ltc4286.rst
+F:	drivers/hwmon/pmbus/Kconfig
+F:	drivers/hwmon/pmbus/Makefile
+F:	drivers/hwmon/pmbus/ltc4286.c
+
 LTC4306 I2C MULTIPLEXER DRIVER
 M:	Michael Hennerich <michael.hennerich@analog.com>
 L:	linux-i2c@vger.kernel.org