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This driver implements support for temperature monitoring of Astera Labs PT5161L series PCIe retimer chips. This driver implementation originates from the CSDK available at Link: https://github.com/facebook/openbmc/tree/helium/common/recipes-lib/retimer-v2.14 The communication protocol utilized is based on the I2C/SMBus standard. Signed-off-by: Cosmo Chou <chou.cosmo@gmail.com> Link: https://lore.kernel.org/r/20240206125420.3884300-2-chou.cosmo@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
42 lines
1.1 KiB
ReStructuredText
42 lines
1.1 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0-or-later
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Kernel driver pt5161l
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=====================
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Supported chips:
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* Astera Labs PT5161L
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Prefix: 'pt5161l'
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Addresses scanned: I2C 0x20 - 0x27
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Datasheet: Not publicly available.
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Authors: Cosmo Chou <cosmo.chou@quantatw.com>
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Description
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-----------
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This driver implements support for temperature monitoring of Astera Labs
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PT5161L series PCIe retimer chips.
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This driver implementation originates from the CSDK available at
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https://github.com/facebook/openbmc/tree/helium/common/recipes-lib/retimer-v2.14
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The communication protocol utilized is based on the I2C/SMBus standard.
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Sysfs entries
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----------------
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================ ==============================================
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temp1_input Measured temperature (in millidegrees Celsius)
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================ ==============================================
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Debugfs entries
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----------------
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================ ===============================
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fw_load_status Firmware load status
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fw_ver Firmware version of the retimer
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heartbeat_status Heartbeat status
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================ ===============================
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