43 lines
1.1 KiB
ReStructuredText
43 lines
1.1 KiB
ReStructuredText
|
.. 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
|
||
|
|
================ ===============================
|