PMBUSSW-LINUX

Linux Driver for PMBUS

PMBUSSW-LINUX

Overview

The Linux driver supports PMBus controlled Buck Controllers. The Linux driver supports communication through the PMBus and interfaces with the HWMon framework.

 

Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:

  • tps40400
  • tps40422
  • tps544b20
  • tps544b25
  • tps544c20
  • tps544c25

 

Linux Source Files

The files associated with this device are:

  1. drivers/hwmon/pmbus/pmbus.c
  2. drivers/hwmon/pmbus/pmbus_core.c
  3. drivers/hwmon/pmbus/tps40422.c
  4. Documentation/hwmon/pmbus
  5. Documentation/hwmon/tps40422

Source Files

drivers/hwmon/pmbus/pmbus.c
drivers/hwmon/pmbus/pmbus_core.c
drivers/hwmon/pmbus/tps40422.c

Other Files

Documentation/hwmon/pmbus
Documentation/hwmon/tps40422

 

Enabling Driver Support

Configure kernel with "make menuconfig" (alternatively use "make xconfig" or "make nconfig")

Menuconfig Location

Symbol: PMBUS [=y]Type  : tristatePrompt: PMBus support  Location:    -> Device Drivers      -> Hardware Monitoring support (HWMON [=y])  Defined at drivers/hwmon/pmbus/Kconfig:5  Depends on: HWMON [=y] && I2C [=y]Symbol: SENSORS_PMBUS [=y]Type  : tristatePrompt: Generic PMBus devices  Location:    -> Device Drivers      -> Hardware Monitoring support (HWMON [=y])        -> PMBus support (PMBUS [=y])  Defined at drivers/hwmon/pmbus/Kconfig:17  Depends on: HWMON [=y] && PMBUS [=y]Symbol: SENSORS_PMBUS [=y]Type  : tristatePrompt: Generic PMBus devices  Location:    -> Device Drivers      -> Hardware Monitoring support (HWMON [=y])        -> PMBus support (PMBUS [=y])  Defined at drivers/hwmon/pmbus/Kconfig:17  Depends on: HWMON [=y] && PMBUS [=y]Symbol: SENSORS_TPS40422 [=y]Type  : tristatePrompt: TI TPS40422  Location:    -> Device Drivers      -> Hardware Monitoring support (HWMON [=y])        -> PMBus support (PMBUS [=y])  Defined at drivers/hwmon/pmbus/Kconfig:118  Depends on: HWMON [=y] && PMBUS [=y]

Fixes and Code Enhancements

If there are fixes and or code enhancements that need to be added to thisdriver please either1. Send the patches to the relevant Linux Kernel community as listed in the maintainers file located: Hereor2.  Contact your TI representative.

 

Buck controllers (external switch)
TPS40400 3-V to 20-V, 30-A, synchronous buck controller with PMBus™, including Telemetry TPS40422 Dual Output or Multiphase Synchronous Buck Controller with PMBus
Buck converters (integrated switch)
TPS544B20 4.5-V to 18-V, 20-A synchronous SWIFT™ buck converter with PMBus programmability and monitoring TPS544B25 4.5-V to 18-V, 20-A synchronous SWIFT™ buck converter with PMBus and frequency sync TPS544C20 4.5-V to 18-V, 30-A synchronous SWIFT™ buck converter with PMBus programmability and monitoring TPS544C25 4.5-V to 18-V, 30-A synchronous SWIFT™ buck converter with PMBus and frequency sync

Support & training

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