| .. 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 |
| ================ =============================== |
