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hwmon: Add driver for Astera Labs PT5161L retimer

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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>
This commit is contained in:
Cosmo Chou
2024-02-06 20:54:20 +08:00
committed by Guenter Roeck
parent 1a793caf6f
commit 1b2ca93cd0
6 changed files with 728 additions and 0 deletions
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10
drivers/hwmon/Kconfig
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@@ -1755,6 +1755,16 @@ source "drivers/hwmon/peci/Kconfig"
source "drivers/hwmon/pmbus/Kconfig"
config SENSORS_PT5161L
tristate "Astera Labs PT5161L PCIe retimer hardware monitoring"
depends on I2C
help
If you say yes here you get support for temperature monitoring
on the Astera Labs PT5161L PCIe retimer.
This driver can also be built as a module. If so, the module
will be called pt5161l.
config SENSORS_PWM_FAN
tristate "PWM fan"
depends on (PWM && OF) || COMPILE_TEST