[PATCH v4 1/2] dt-bindings: hwmon: Add nct7802 bindings

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Document bindings for the Nuvoton NCT7802Y driver.

Signed-off-by: Oskar Senft <osk@xxxxxxxxxx>
---
 .../bindings/hwmon/nuvoton,nct7802.yaml       | 142 ++++++++++++++++++
 1 file changed, 142 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/nuvoton,nct7802.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/nuvoton,nct7802.yaml b/Documentation/devicetree/bindings/hwmon/nuvoton,nct7802.yaml
new file mode 100644
index 000000000000..a97b89d0d197
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/nuvoton,nct7802.yaml
@@ -0,0 +1,142 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/hwmon/nuvoton,nct7802.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton NCT7802Y Hardware Monitoring IC
+
+maintainers:
+  - Guenter Roeck <linux@xxxxxxxxxxxx>
+
+description: |
+  The NCT7802Y is a hardware monitor IC which supports one on-die and up to
+  5 remote temperature sensors with SMBus interface.
+
+  Datasheets:
+    https://www.nuvoton.com/export/resource-files/Nuvoton_NCT7802Y_Datasheet_V12.pdf
+
+properties:
+  compatible:
+    enum:
+      - nuvoton,nct7802
+
+  reg:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+  input@0:
+    type: object
+    description: Local Temperature Sensor ("LTD")
+    properties:
+      reg:
+        const: 0
+    required:
+      - reg
+
+  input@1:
+    type: object
+    description: Remote Temperature Sensor or Voltage Sensor ("RTD1")
+    properties:
+      reg:
+        const: 1
+      sensor-type:
+        items:
+          - enum:
+              - temperature
+              - voltage
+      temperature-mode:
+        items:
+          - enum:
+              - thermistor
+              - thermal-diode
+    required:
+      - reg
+      - sensor-type
+
+  input@2:
+    type: object
+    description: Remote Temperature Sensor or Voltage Sensor ("RTD2")
+    properties:
+      reg:
+        const: 2
+      sensor-type:
+        items:
+          - enum:
+              - temperature
+              - voltage
+      temperature-mode:
+        items:
+          - enum:
+              - thermistor
+              - thermal-diode
+    required:
+      - reg
+      - sensor-type
+
+  input@3:
+    type: object
+    description: Remote Temperature Sensor or Voltage Sensor ("RTD3")
+    properties:
+      reg:
+        const: 3
+      sensor-type:
+        items:
+          - enum:
+              - temperature
+              - voltage
+    required:
+      - reg
+      - sensor-type
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        nct7802@28 {
+            compatible = "nuvoton,nct7802";
+            reg = <0x28>;
+
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            input@0 { /* LTD */
+              reg = <0>;
+              status = "okay";
+            };
+
+            input@1 { /* RTD1 */
+              reg = <1>;
+              status = "okay";
+              sensor-type = "temperature";
+              temperature-mode = "thermistor";
+            };
+
+            input@2 { /* RTD2 */
+              reg = <2>;
+              status = "okay";
+              sensor-type = "temperature";
+              temperature-mode = "thermal-diode";
+            };
+
+            input@3 { /* RTD3 */
+              reg = <3>;
+              status = "okay";
+              sensor-type = "voltage";
+            };
+        };
+    };
-- 
2.33.0.882.g93a45727a2-goog




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