[PATCH v1 5/8] dt-bindings: hwmon: add NXP MC33978/MC34978 hwmon

[Oleksij Rempel]

Add device tree binding documentation for the hardware monitoring block
of the NXP MC33978/MC34978 Multiple Switch Detection Interface (MSDI).

Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
---
 .../bindings/hwmon/nxp,mc33978-hwmon.yaml     | 34 +++++++++++++++++++
 .../devicetree/bindings/mfd/nxp,mc33978.yaml  | 10 ++++++
 2 files changed, 44 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/nxp,mc33978-hwmon.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/nxp,mc33978-hwmon.yaml b/Documentation/devicetree/bindings/hwmon/nxp,mc33978-hwmon.yaml
new file mode 100644
index 000000000000..b7e2aaa51a33
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/nxp,mc33978-hwmon.yaml
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/nxp,mc33978-hwmon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP MC33978/MC34978 Hardware Monitor
+
+maintainers:
+  - David Jander <david@xxxxxxxxxxx>
+  - Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
+
+description: |
+  Hardware monitoring driver for the MC33978/MC34978 MSDI device.
+  Provides fault detection and monitoring for:
+  - Battery voltage (VBATP) faults: undervoltage, overvoltage
+  - Temperature faults: over-temperature, warning threshold
+
+properties:
+  compatible:
+    enum:
+      - nxp,mc33978-hwmon
+      - nxp,mc34978-hwmon
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    hwmon {
+        compatible = "nxp,mc33978-hwmon";
+    };
diff --git a/Documentation/devicetree/bindings/mfd/nxp,mc33978.yaml b/Documentation/devicetree/bindings/mfd/nxp,mc33978.yaml
index 5e8ab2cff685..58fcfe24d415 100644
--- a/Documentation/devicetree/bindings/mfd/nxp,mc33978.yaml
+++ b/Documentation/devicetree/bindings/mfd/nxp,mc33978.yaml
@@ -58,6 +58,12 @@ properties:
     description: |
       Pinctrl and GPIO controller child node for the 22 switch inputs.
 
+  hwmon:
+    type: object
+    $ref: /schemas/hwmon/nxp,mc33978-hwmon.yaml#
+    description: |
+      Hardware monitoring child node for fault detection.
+
 required:
   - compatible
   - reg
@@ -94,5 +100,9 @@ examples:
                 gpio-controller;
                 #gpio-cells = <2>;
             };
+
+            hwmon {
+                compatible = "nxp,mc33978-hwmon";
+            };
         };
     };
-- 
2.47.3