[PATCH v1 1/2] dt-bindings: hwmon: Add Eswin EIC7700 PVT sensor

hehuan1
2026-01-09T09:08:53Z

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 | 92 +++++++++++++++++++
1 file changed, 92 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..72693828a461
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/eswin,eic7700-pvt.yaml
@@ -0,0 +1,92 @@
+# 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.
+
+properties:
+ compatible:
+ const: eswin,eic7700-pvt
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: clk
+
+ interrupts:
+ maxItems: 1
+
+ label:
+ description:
+ Human readable identifier used to distinguish between different PVT
+ instances and generate descriptive sensor labels. Typically "pvt0"
+ for SoC PVT sensor and "pvt1" for DDR core PVT sensor.
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ items:
+ - const: rst
+
+ '#thermal-sensor-cells':
+ description: Thermal sensor cells if used for thermal sensoring.
+ const: 0
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - interrupts
+ - label
+ - resets
+ - reset-names
+
+examples:
+ - |
+ pvt@50b00000 {
+ compatible = "eswin,eic7700-pvt";
+ reg = <0x50b00000 0x10000>;
+ clocks = <&clocks 244>;
+ clock-names = "clk";
+ interrupts = <349>;
+ interrupt-parent = <&plic>;
+ label = "pvt0";
+ resets = <&reset 111>;
+ reset-names = "rst";
+ #thermal-sensor-cells = <0>;
+ };
+
+ pvt@52360000 {
+ compatible = "eswin,eic7700-pvt";
+ reg = <0x52360000 0x20000>;
+ clocks = <&clocks 245>;
+ clock-names = "clk";
+ interrupts = <350>;
+ interrupt-parent = <&plic>;
+ label = "pvt1";
+ resets = <&reset 112>;
+ reset-names = "rst";
+ #thermal-sensor-cells = <0>;
+ };
+...
--
2.25.1