linux-kernel - [PATCH v5 1/2] dt-bindings: hwmon: add STEF48H28

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Message-Id: <20251229103956.120184-1-hsu.yungteng@gmail.com>
Date: Mon, 29 Dec 2025 18:39:55 +0800
From: Charles Hsu <hsu.yungteng@...il.com>
To: linux@...ck-us.net
Cc: linux-hwmon@...r.kernel.org,
	devicetree@...r.kernel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	linux-kernel@...r.kernel.org,
	Charles Hsu <hsu.yungteng@...il.com>
Subject: [PATCH v5 1/2] dt-bindings: hwmon: add STEF48H28

Add device tree bindings for the hot-swap controller STEF48H28.

Changes in v5:
- Move the change list into the commit message.

Changes in v4:
- Fix an incorrect datasheet URL and update it to the correct reference.

Changes in v3:
- Move the STEF48H28 Device Tree binding from
  trivial-devices.yaml to pmbus/stef48h28.yaml.

Changes in v2:
- Fix the entry in trivial-devices.yaml by correcting the comment
  and compatible string ordering.

Signed-off-by: Charles Hsu <hsu.yungteng@...il.com>
---
 .../bindings/hwmon/pmbus/st,stef48h28.yaml    | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/pmbus/st,stef48h28.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/st,stef48h28.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/st,stef48h28.yaml
new file mode 100644
index 000000000000..c6a4b02bcd84
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/pmbus/st,stef48h28.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/pmbus/st,stef48h28.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics hot-swap controller with PMBus interface
+
+maintainers:
+  - Charles Hsu <hsu.yungteng@...il.com>
+
+description: |
+  The STEF48H28 is an advanced 30A integrated electronic fuse for
+  the 9-80V DC power lines.
+
+  Datasheet:
+    https://www.st.com/resource/en/data_brief/stef48h28.pdf
+
+properties:
+  compatible:
+    enum:
+      - st,stef48h28
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        pmic@11 {
+            compatible = "st,stef48h28";
+            reg = <0x11>;
+        };
+    };
-- 
2.34.1