LXR linux/Documentation/hwmon/tps40422.rst

   1Kernel driver tps40422
   2======================
   3
   4Supported chips:
   5
   6  * TI TPS40422
   7
   8    Prefix: 'tps40422'
   9
  10    Addresses scanned: -
  11
  12    Datasheet: https://www.ti.com/lit/gpn/tps40422
  13
  14Author: Zhu Laiwen <richard.zhu@nsn.com>
  15
  16
  17Description
  18-----------
  19
  20This driver supports TI TPS40422 Dual-Output or Two-Phase Synchronous Buck
  21Controller with PMBus
  22
  23The driver is a client driver to the core PMBus driver.
  24Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
  25
  26
  27Usage Notes
  28-----------
  29
  30This driver does not auto-detect devices. You will have to instantiate the
  31devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
  32details.
  33
  34
  35Platform data support
  36---------------------
  37
  38The driver supports standard PMBus driver platform data.
  39
  40
  41Sysfs entries
  42-------------
  43
  44The following attributes are supported.
  45
  46======================= =======================================================
  47in[1-2]_label           "vout[1-2]"
  48in[1-2]_input           Measured voltage. From READ_VOUT register.
  49in[1-2]_alarm           voltage alarm.
  50
  51curr[1-2]_input         Measured current. From READ_IOUT register.
  52curr[1-2]_label         "iout[1-2]"
  53curr1_max               Maximum current. From IOUT_OC_WARN_LIMIT register.
  54curr1_crit              Critical maximum current. From IOUT_OC_FAULT_LIMIT
  55                        register.
  56curr1_max_alarm         Current high alarm. From IOUT_OC_WARN_LIMIT status.
  57curr1_crit_alarm        Current critical high alarm. From IOUT_OC_FAULT status.
  58curr2_alarm             Current high alarm. From IOUT_OC_WARNING status.
  59
  60temp1_input             Measured temperature. From READ_TEMPERATURE_2 register
  61                        on page 0.
  62temp1_max               Maximum temperature. From OT_WARN_LIMIT register.
  63temp1_crit              Critical high temperature. From OT_FAULT_LIMIT register.
  64temp1_max_alarm         Chip temperature high alarm. Set by comparing
  65                        READ_TEMPERATURE_2 on page 0 with OT_WARN_LIMIT if
  66                        TEMP_OT_WARNING status is set.
  67temp1_crit_alarm        Chip temperature critical high alarm. Set by comparing
  68                        READ_TEMPERATURE_2 on page 0 with OT_FAULT_LIMIT if
  69                        TEMP_OT_FAULT status is set.
  70temp2_input             Measured temperature. From READ_TEMPERATURE_2 register
  71                        on page 1.
  72temp2_alarm             Chip temperature alarm on page 1.
  73======================= =======================================================
  74