linux-kernel - [PATCH v3 1/2] dt-bindings: hwmon: Add Sophgo SG2042 external hardware monitor support

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Date: Mon, 29 Apr 2024 20:03:24 +0800
From: Inochi Amaoto <inochiama@...look.com>
To: Jean Delvare <jdelvare@...e.com>,
	Guenter Roeck <linux@...ck-us.net>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen Wang <unicorn_wang@...look.com>,
	Inochi Amaoto <inochiama@...look.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>
Cc: linux-hwmon@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org
Subject: [PATCH v3 1/2] dt-bindings: hwmon: Add Sophgo SG2042 external hardware monitor support

Due to the design, Sophgo SG2042 use an external MCU to provide
hardware information, thermal information and reset control.

Add bindings for this monitor device.

Signed-off-by: Inochi Amaoto <inochiama@...look.com>
---
 .../hwmon/sophgo,sg2042-hwmon-mcu.yaml        | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/sophgo,sg2042-hwmon-mcu.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/sophgo,sg2042-hwmon-mcu.yaml b/Documentation/devicetree/bindings/hwmon/sophgo,sg2042-hwmon-mcu.yaml
new file mode 100644
index 000000000000..64a8403aaab8
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/sophgo,sg2042-hwmon-mcu.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/sophgo,sg2042-hwmon-mcu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo SG2042 onboard MCU support
+
+maintainers:
+  - Inochi Amaoto <inochiama@...look.com>
+
+properties:
+  compatible:
+    const: sophgo,sg2042-hwmon-mcu
+
+  reg:
+    maxItems: 1
+
+  "#thermal-sensor-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - "#thermal-sensor-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        syscon@17 {
+            compatible = "sophgo,sg2042-hwmon-mcu";
+            reg = <0x17>;
+            #thermal-sensor-cells = <1>;
+        };
+    };
--
2.44.0