1 .. SPDX-License-Identifier: GPL-2.0-or-later 2 3 Kernel driver pt5161l 4 ===================== 5 6 Supported chips: 7 8 * Astera Labs PT5161L 9 10 Prefix: 'pt5161l' 11 12 Addresses scanned: I2C 0x20 - 0x27 13 14 Datasheet: Not publicly available. 15 16 Authors: Cosmo Chou <cosmo.chou@quantatw.com> 17 18 Description 19 ----------- 20 21 This driver implements support for temperature monitoring of Astera Labs 22 PT5161L series PCIe retimer chips. 23 24 This driver implementation originates from the CSDK available at 25 https://github.com/facebook/openbmc/tree/helium/common/recipes-lib/retimer-v2.14 26 The communication protocol utilized is based on the I2C/SMBus standard. 27 28 Sysfs entries 29 ---------------- 30 31 ================ ============================================== 32 temp1_input Measured temperature (in millidegrees Celsius) 33 ================ ============================================== 34 35 Debugfs entries 36 ---------------- 37 38 ================ =============================== 39 fw_load_status Firmware load status 40 fw_ver Firmware version of the retimer 41 heartbeat_status Heartbeat status 42 ================ ===============================
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