.. SPDX-License-Identifier: GPL-2.0-or-later
Kernel driver pt5161l
=====================
Supported chips:
* Astera Labs PT5161L
Prefix: 'pt5161l'
Addresses scanned: I2C 0x20 - 0x27
Datasheet: Not publicly available.
Authors: Cosmo Chou <cosmo.chou@quantatw.com>
Description
-----------
This driver implements support for temperature monitoring of Astera Labs
PT5161L series PCIe retimer chips.
This driver implementation originates from the CSDK available at
https://github.com/facebook/openbmc/tree/helium/common/recipes-lib/retimer-v2.14
The communication protocol utilized is based on the I2C/SMBus standard.
Sysfs entries
----------------
================ ==============================================
temp1_input Measured temperature (in millidegrees Celsius)
================ ==============================================
Debugfs entries
----------------
================ ===============================
fw_load_status Firmware load status
fw_ver Firmware version of the retimer
heartbeat_status Heartbeat status
================ ===============================
