1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/hwmon/amd,sbtsi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 Sideband interface Temperature Sensor Interface (SB-TSI) compliant
9 AMD SoC temperature device
12 - Kun Yi <kunyi@google.com>
13 - Supreeth Venkatesh <supreeth.venkatesh@amd.com>
16 SB Temperature Sensor Interface (SB-TSI) is an SMBus compatible
17 interface that reports AMD SoC's Ttcl (normalized temperature),
18 and resembles a typical 8-pin remote temperature sensor's I2C interface
19 to BMC. The emulated thermal sensor can report temperatures in increments
20 of 0.125 degrees, ranging from 0 to 255.875.
30 I2C bus address of the device as specified in Section 6.3.1 of the
31 SoC register reference. The SB-TSI address is normally 98h for socket
32 0 and 90h for socket 1, but it could vary based on hardware address
34 \[open source SoC register reference\]
35 https://www.amd.com/system/files/TechDocs/56255_OSRR.pdf
41 additionalProperties: false
50 compatible = "amd,sbtsi";