forked from Minki/linux
37ab356417
Added documentation for Infineon PXE1610 driver Signed-off-by: Vijay Khemka <vijaykhemka@fb.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
91 lines
2.4 KiB
Plaintext
91 lines
2.4 KiB
Plaintext
Kernel driver pxe1610
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=====================
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Supported chips:
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* Infineon PXE1610
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Prefix: 'pxe1610'
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Addresses scanned: -
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Datasheet: Datasheet is not publicly available.
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* Infineon PXE1110
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Prefix: 'pxe1110'
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Addresses scanned: -
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Datasheet: Datasheet is not publicly available.
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* Infineon PXM1310
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Prefix: 'pxm1310'
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Addresses scanned: -
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Datasheet: Datasheet is not publicly available.
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Author: Vijay Khemka <vijaykhemka@fb.com>
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Description
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-----------
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PXE1610/PXE1110 are Multi-rail/Multiphase Digital Controllers
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and compliant to
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-- Intel VR13 DC-DC converter specifications.
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-- Intel SVID protocol.
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Used for Vcore power regulation for Intel VR13 based microprocessors
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-- Servers, Workstations, and High-end desktops
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PXM1310 is a Multi-rail Controller and it is compliant to
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-- Intel VR13 DC-DC converter specifications.
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-- Intel SVID protocol.
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Used for DDR3/DDR4 Memory power regulation for Intel VR13 and
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IMVP8 based systems
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Usage Notes
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-----------
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This driver does not probe for PMBus devices. You will have
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to instantiate devices explicitly.
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Example: the following commands will load the driver for an PXE1610
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at address 0x70 on I2C bus #4:
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# modprobe pxe1610
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# echo pxe1610 0x70 > /sys/bus/i2c/devices/i2c-4/new_device
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It can also be instantiated by declaring in device tree
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Sysfs attributes
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----------------
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curr1_label "iin"
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curr1_input Measured input current
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curr1_alarm Current high alarm
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curr[2-4]_label "iout[1-3]"
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curr[2-4]_input Measured output current
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curr[2-4]_crit Critical maximum current
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curr[2-4]_crit_alarm Current critical high alarm
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in1_label "vin"
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in1_input Measured input voltage
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in1_crit Critical maximum input voltage
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in1_crit_alarm Input voltage critical high alarm
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in[2-4]_label "vout[1-3]"
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in[2-4]_input Measured output voltage
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in[2-4]_lcrit Critical minimum output voltage
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in[2-4]_lcrit_alarm Output voltage critical low alarm
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in[2-4]_crit Critical maximum output voltage
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in[2-4]_crit_alarm Output voltage critical high alarm
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power1_label "pin"
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power1_input Measured input power
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power1_alarm Input power high alarm
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power[2-4]_label "pout[1-3]"
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power[2-4]_input Measured output power
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temp[1-3]_input Measured temperature
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temp[1-3]_crit Critical high temperature
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temp[1-3]_crit_alarm Chip temperature critical high alarm
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temp[1-3]_max Maximum temperature
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temp[1-3]_max_alarm Chip temperature high alarm
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