0001 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/hwmon/amd,sbtsi.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: >
0008 Sideband interface Temperature Sensor Interface (SB-TSI) compliant
0009 AMD SoC temperature device
0010
0011 maintainers:
0012 - Kun Yi <kunyi@google.com>
0013 - Supreeth Venkatesh <supreeth.venkatesh@amd.com>
0014
0015 description: |
0016 SB Temperature Sensor Interface (SB-TSI) is an SMBus compatible
0017 interface that reports AMD SoC's Ttcl (normalized temperature),
0018 and resembles a typical 8-pin remote temperature sensor's I2C interface
0019 to BMC. The emulated thermal sensor can report temperatures in increments
0020 of 0.125 degrees, ranging from 0 to 255.875.
0021
0022 properties:
0023 compatible:
0024 enum:
0025 - amd,sbtsi
0026
0027 reg:
0028 maxItems: 1
0029 description: |
0030 I2C bus address of the device as specified in Section 6.3.1 of the
0031 SoC register reference. The SB-TSI address is normally 98h for socket
0032 0 and 90h for socket 1, but it could vary based on hardware address
0033 select pins.
0034 \[open source SoC register reference\]
0035 https://www.amd.com/system/files/TechDocs/56255_OSRR.pdf
0036
0037 required:
0038 - compatible
0039 - reg
0040
0041 additionalProperties: false
0042
0043 examples:
0044 - |
0045 i2c0 {
0046 #address-cells = <1>;
0047 #size-cells = <0>;
0048
0049 sbtsi@4c {
0050 compatible = "amd,sbtsi";
0051 reg = <0x4c>;
0052 };
0053 };
0054 ...
