1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/hwmon/amd,sbrmi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: >
8 Sideband Remote Management Interface (SB-RMI) compliant
9 AMD SoC power device.
10
11 maintainers:
12 - Akshay Gupta <Akshay.Gupta@amd.com>
13
14 description: |
15 SB Remote Management Interface (SB-RMI) is an SMBus compatible
16 interface that reports AMD SoC's Power (normalized Power) using,
17 Mailbox Service Request and resembles a typical 8-pin remote power
18 sensor's I2C interface to BMC. The power attributes in hwmon
19 reports power in microwatts.
20
21 properties:
22 compatible:
23 enum:
24 - amd,sbrmi
25
26 reg:
27 maxItems: 1
28 description: |
29 I2C bus address of the device as specified in Section SBI SMBus Address
30 of the SoC register reference. The SB-RMI address is normally 78h for
31 socket 0 and 70h for socket 1, but it could vary based on hardware
32 address select pins.
33 \[open source SoC register reference\]
34 https://www.amd.com/en/support/tech-docs?keyword=55898
35
36 required:
37 - compatible
38 - reg
39
40 additionalProperties: false
41
42 examples:
43 - |
44 i2c {
45 #address-cells = <1>;
46 #size-cells = <0>;
47
48 sbrmi@3c {
49 compatible = "amd,sbrmi";
50 reg = <0x3c>;
51 };
52 };
53 ...
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