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- .. 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
- ================ ===============================
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