[PATCH v2 1/2] dt-bindings: hwmon: Add Eswin EIC7700 PVT sensor

[hehuan1@eswincomputing.com]

From: Huan He <hehuan1@eswincomputing.com>

Add device tree binding documentation for ESWIN EIC7700 Process, Voltage
and Temperature sensor.

The EIC7700 SoC integrates two PVT instances for monitoring SoC and DDR
power domains respectively.

Signed-off-by: Yulin Lu <luyulin@eswincomputing.com>
Signed-off-by: Huan He <hehuan1@eswincomputing.com>
---
 .../bindings/hwmon/eswin,eic7700-pvt.yaml     | 70 +++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/eswin,eic7700-pvt.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/eswin,eic7700-pvt.yaml b/Documentation/devicetree/bindings/hwmon/eswin,eic7700-pvt.yaml
new file mode 100644
index 000000000000..f4ba228924fe
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/eswin,eic7700-pvt.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/eswin,eic7700-pvt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ESWIN EIC7700 PVT Sensor
+
+maintainers:
+  - Yulin Lu <luyulin@eswincomputing.com>
+  - Huan He <hehuan1@eswincomputing.com>
+
+description:
+  ESWIN EIC7700 SoC integrates embedded process, voltage and temperature
+  sensors to monitor the internal SoC environment. The system includes two
+  PVT sensor instances. The PVT0 monitors the main SoC power domain. The
+  PVT1 sensor monitors the DDR core power domain.
+
+allOf:
+  - $ref: /schemas/hwmon/hwmon-common.yaml#
+
+properties:
+  compatible:
+    const: eswin,eic7700-pvt
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  label:
+    description:
+      Human readable identifier used to distinguish between different PVT
+      instances. Typically "pvt0" for SoC PVT sensor and "pvt1" for DDR
+      core PVT sensor.
+
+  resets:
+    maxItems: 1
+
+  '#thermal-sensor-cells':
+    description: Thermal sensor cells if used for thermal sensoring.
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - interrupts
+  - label
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    pvt@50b00000 {
+      compatible = "eswin,eic7700-pvt";
+      reg = <0x50b00000 0x10000>;
+      clocks = <&clocks 244>;
+      interrupts = <349>;
+      interrupt-parent = <&plic>;
+      label = "pvt0";
+      resets = <&reset 111>;
+      #thermal-sensor-cells = <0>;
+    };
+...
-- 
2.25.1