Kernel driver isl68137

Supported chips:

  • Renesas ISL68137

    Prefix: ‘isl68137’

    Addresses scanned: -

    Datasheet:

    Publicly available at the Renesas website https://www.renesas.com/us/en/www/doc/datasheet/isl68137.pdf

  • Renesas ISL68220

    Prefix: ‘isl68220’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL68221

    Prefix: ‘isl68221’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL68222

    Prefix: ‘isl68222’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL68223

    Prefix: ‘isl68223’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL68224

    Prefix: ‘isl68224’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL68225

    Prefix: ‘isl68225’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL68226

    Prefix: ‘isl68226’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL68227

    Prefix: ‘isl68227’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL68229

    Prefix: ‘isl68229’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL68233

    Prefix: ‘isl68233’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL68239

    Prefix: ‘isl68239’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69222

    Prefix: ‘isl69222’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69223

    Prefix: ‘isl69223’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69224

    Prefix: ‘isl69224’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69225

    Prefix: ‘isl69225’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69227

    Prefix: ‘isl69227’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69228

    Prefix: ‘isl69228’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69234

    Prefix: ‘isl69234’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69236

    Prefix: ‘isl69236’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69239

    Prefix: ‘isl69239’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69242

    Prefix: ‘isl69242’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69243

    Prefix: ‘isl69243’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69247

    Prefix: ‘isl69247’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69248

    Prefix: ‘isl69248’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69254

    Prefix: ‘isl69254’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69255

    Prefix: ‘isl69255’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69256

    Prefix: ‘isl69256’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69259

    Prefix: ‘isl69259’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69260

    Prefix: ‘isl69260’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69268

    Prefix: ‘isl69268’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69269

    Prefix: ‘isl69269’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas ISL69298

    Prefix: ‘isl69298’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas RAA228000

    Prefix: ‘raa228000’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas RAA228004

    Prefix: ‘raa228004’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas RAA228006

    Prefix: ‘raa228006’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas RAA228228

    Prefix: ‘raa228228’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas RAA229001

    Prefix: ‘raa229001’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

  • Renesas RAA229004

    Prefix: ‘raa229004’

    Addresses scanned: -

    Datasheet:

    Publicly available (after August 2020 launch) at the Renesas website

Authors:

Description

This driver supports the Renesas ISL68137 and all 2nd generation Renesas digital multiphase voltage regulators (raa_dmpvr2). The ISL68137 is a digital output 7-phase configurable PWM controller with an AVSBus interface. 2nd generation devices are grouped into 4 distinct configurations: ‘1rail’ for single-rail devices, ‘2rail’ for dual-rail devices, ‘3rail’ for 3-rail devices, and ‘hv’ for high voltage single-rail devices. Consult the individual datasheets for more information.

Usage Notes

This driver does not probe for PMBus devices. You will have to instantiate devices explicitly.

The ISL68137 AVS operation mode must be enabled/disabled at runtime.

Beyond the normal sysfs pmbus attributes, the driver exposes a control attribute for the ISL68137.

For 2nd generation Renesas digital multiphase voltage regulators, only the normal sysfs pmbus attributes are supported.

ISL68137 sysfs attributes

avs(0|1)_enable Controls the AVS state of each rail.
curr1_label “iin”
curr1_input Measured input current
curr1_crit Critical maximum current
curr1_crit_alarm Current critical high alarm
curr[2-3]_label “iout[1-2]”
curr[2-3]_input Measured output current
curr[2-3]_crit Critical maximum current
curr[2-3]_crit_alarm Current critical high alarm
in1_label “vin”
in1_input Measured input voltage
in1_lcrit Critical minimum input voltage
in1_lcrit_alarm Input voltage critical low alarm
in1_crit Critical maximum input voltage
in1_crit_alarm Input voltage critical high alarm
in[2-3]_label “vout[1-2]”
in[2-3]_input Measured output voltage
in[2-3]_lcrit Critical minimum output voltage
in[2-3]_lcrit_alarm Output voltage critical low alarm
in[2-3]_crit Critical maximum output voltage
in[2-3]_crit_alarm Output voltage critical high alarm
power1_label “pin”
power1_input Measured input power
power1_alarm Input power high alarm
power[2-3]_label “pout[1-2]”
power[2-3]_input Measured output power
temp[1-3]_input Measured temperature
temp[1-3]_crit Critical high temperature
temp[1-3]_crit_alarm Chip temperature critical high alarm
temp[1-3]_max Maximum temperature
temp[1-3]_max_alarm Chip temperature high alarm

raa_dmpvr2_1rail/hv sysfs attributes

curr1_label “iin”
curr1_input Measured input current
curr1_crit Critical maximum current
curr1_crit_alarm Current critical high alarm
curr2_label “iout”
curr2_input Measured output current
curr2_crit Critical maximum current
curr2_crit_alarm Current critical high alarm
in1_label “vin”
in1_input Measured input voltage
in1_lcrit Critical minimum input voltage
in1_lcrit_alarm Input voltage critical low alarm
in1_crit Critical maximum input voltage
in1_crit_alarm Input voltage critical high alarm
in2_label “vmon”
in2_input Scaled VMON voltage read from the VMON pin
in3_label “vout”
in3_input Measured output voltage
in3_lcrit Critical minimum output voltage
in3_lcrit_alarm Output voltage critical low alarm
in3_crit Critical maximum output voltage
in3_crit_alarm Output voltage critical high alarm
power1_label “pin”
power1_input Measured input power
power1_alarm Input power high alarm
power2_label “pout”
power2_input Measured output power
temp[1-3]_input Measured temperature
temp[1-3]_crit Critical high temperature
temp[1-3]_crit_alarm Chip temperature critical high alarm
temp[1-3]_max Maximum temperature
temp[1-3]_max_alarm Chip temperature high alarm

raa_dmpvr2_2rail sysfs attributes

curr[1-2]_label “iin[1-2]”
curr[1-2]_input Measured input current
curr[1-2]_crit Critical maximum current
curr[1-2]_crit_alarm Current critical high alarm
curr[3-4]_label “iout[1-2]”
curr[3-4]_input Measured output current
curr[3-4]_crit Critical maximum current
curr[3-4]_crit_alarm Current critical high alarm
in1_label “vin”
in1_input Measured input voltage
in1_lcrit Critical minimum input voltage
in1_lcrit_alarm Input voltage critical low alarm
in1_crit Critical maximum input voltage
in1_crit_alarm Input voltage critical high alarm
in2_label “vmon”
in2_input Scaled VMON voltage read from the VMON pin
in[3-4]_label “vout[1-2]”
in[3-4]_input Measured output voltage
in[3-4]_lcrit Critical minimum output voltage
in[3-4]_lcrit_alarm Output voltage critical low alarm
in[3-4]_crit Critical maximum output voltage
in[3-4]_crit_alarm Output voltage critical high alarm
power[1-2]_label “pin[1-2]”
power[1-2]_input Measured input power
power[1-2]_alarm Input power high alarm
power[3-4]_label “pout[1-2]”
power[3-4]_input Measured output power
temp[1-5]_input Measured temperature
temp[1-5]_crit Critical high temperature
temp[1-5]_crit_alarm Chip temperature critical high alarm
temp[1-5]_max Maximum temperature
temp[1-5]_max_alarm Chip temperature high alarm

raa_dmpvr2_3rail sysfs attributes

curr[1-3]_label “iin[1-3]”
curr[1-3]_input Measured input current
curr[1-3]_crit Critical maximum current
curr[1-3]_crit_alarm Current critical high alarm
curr[4-6]_label “iout[1-3]”
curr[4-6]_input Measured output current
curr[4-6]_crit Critical maximum current
curr[4-6]_crit_alarm Current critical high alarm
in1_label “vin”
in1_input Measured input voltage
in1_lcrit Critical minimum input voltage
in1_lcrit_alarm Input voltage critical low alarm
in1_crit Critical maximum input voltage
in1_crit_alarm Input voltage critical high alarm
in2_label “vmon”
in2_input Scaled VMON voltage read from the VMON pin
in[3-5]_label “vout[1-3]”
in[3-5]_input Measured output voltage
in[3-5]_lcrit Critical minimum output voltage
in[3-5]_lcrit_alarm Output voltage critical low alarm
in[3-5]_crit Critical maximum output voltage
in[3-5]_crit_alarm Output voltage critical high alarm
power[1-3]_label “pin[1-3]”
power[1-3]_input Measured input power
power[1-3]_alarm Input power high alarm
power[4-6]_label “pout[1-3]”
power[4-6]_input Measured output power
temp[1-7]_input Measured temperature
temp[1-7]_crit Critical high temperature
temp[1-7]_crit_alarm Chip temperature critical high alarm
temp[1-7]_max Maximum temperature
temp[1-7]_max_alarm Chip temperature high alarm