[PATCH 5/5] dt-bindings: hwmon: Add bindings for mpq8785 driver

[Pawel Dembicki <paweldembicki@gmail.com>]

Add device tree bindings for Monolithic Power Systems MPQ8785, MPM82504
and MPM3695 PMBus-compliant voltage regulators.

These bindings also documents the optional "voltage-scale-loop" property.

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
---
 .../bindings/hwmon/pmbus/mps,mpq8785.yaml     | 54 +++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/pmbus/mps,mpq8785.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/mps,mpq8785.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/mps,mpq8785.yaml
new file mode 100644
index 000000000000..e2a3958a61fa
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/pmbus/mps,mpq8785.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/hwmon/pmbus/mps,mpq8785.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+allOf:
+  - $ref: /schemas/i2c/i2c-device.yaml#
+
+title: Monolithic Power Systems Multiphase Voltage Regulators with PMBus
+
+maintainers:
+  - Charles Hsu <ythsu0511@gmail.com>
+
+description: |
+  Monolithic Power Systems digital multiphase voltage regulators with PMBus.
+
+properties:
+  compatible:
+    enum:
+      - mps,mpq8785
+      - mps,mpm82504
+      - mps,mpm3695-10
+
+  reg:
+    maxItems: 1
+
+  voltage-scale-loop:
+    description:
+      Voltage scale factor for the VOUT_SCALE_LOOP register.
+      Value expressed in mili-units (1/1000th of a unit).
+      The simplest way to calculate it is
+      VOUT_SCALE_LOOP = VFB / VOUT * 1000
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      pmic@30 {
+        compatible = "mps,mpm82504";
+        reg = <0x30>;
+        voltage-scale-loop = <600>;
+      };
+    };
-- 
2.43.0