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66102281f9
MAX16508 is quite similar to MAX16601, except that it does not support the DEFAULT_NUM_POP register and we thus can not dynamically determine the number of populated phases. Cc: Alex Qiu <xqiu@google.com> Cc: Ugur Usug <Ugur.Usug@maximintegrated.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210125185327.93282-2-linux@roeck-us.net Reviewed-by: Alex Qiu <xqiu@google.com> Tested-by: Alex Qiu <xqiu@google.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
128 lines
3.3 KiB
ReStructuredText
128 lines
3.3 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0
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Kernel driver max16601
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======================
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Supported chips:
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* Maxim MAX16508
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Prefix: 'max16508'
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Addresses scanned: -
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Datasheet: Not published
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* Maxim MAX16601
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Prefix: 'max16601'
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Addresses scanned: -
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Datasheet: Not published
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Author: Guenter Roeck <linux@roeck-us.net>
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Description
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-----------
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This driver supports the MAX16508 VR13 Dual-Output Voltage Regulator
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as well as the MAX16601 VR13.HC Dual-Output Voltage Regulator chipsets.
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The driver is a client driver to the core PMBus driver.
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Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
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Usage Notes
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-----------
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This driver does not auto-detect devices. You will have to instantiate the
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devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
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details.
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Platform data support
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---------------------
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The driver supports standard PMBus driver platform data.
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Sysfs entries
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-------------
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The following attributes are supported.
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=============================== ===============================================
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in1_label "vin1"
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in1_input VCORE input voltage.
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in1_alarm Input voltage alarm.
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in2_label "vout1"
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in2_input VCORE output voltage.
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in2_alarm Output voltage alarm.
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curr1_label "iin1"
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curr1_input VCORE input current, derived from duty cycle
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and output current.
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curr1_max Maximum input current.
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curr1_max_alarm Current high alarm.
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curr[P+2]_label "iin1.P"
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curr[P+2]_input VCORE phase P input current.
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curr[N+2]_label "iin2"
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curr[N+2]_input VCORE input current, derived from sensor
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element.
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'N' is the number of enabled/populated phases.
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curr[N+3]_label "iin3"
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curr[N+3]_input VSA input current.
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curr[N+4]_label "iout1"
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curr[N+4]_input VCORE output current.
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curr[N+4]_crit Critical output current.
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curr[N+4]_crit_alarm Output current critical alarm.
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curr[N+4]_max Maximum output current.
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curr[N+4]_max_alarm Output current high alarm.
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curr[N+P+5]_label "iout1.P"
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curr[N+P+5]_input VCORE phase P output current.
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curr[2*N+5]_label "iout3"
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curr[2*N+5]_input VSA output current.
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curr[2*N+5]_highest Historical maximum VSA output current.
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curr[2*N+5]_reset_history Write any value to reset curr21_highest.
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curr[2*N+5]_crit Critical output current.
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curr[2*N+5]_crit_alarm Output current critical alarm.
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curr[2*N+5]_max Maximum output current.
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curr[2*N+5]_max_alarm Output current high alarm.
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power1_label "pin1"
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power1_input Input power, derived from duty cycle and output
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current.
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power1_alarm Input power alarm.
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power2_label "pin2"
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power2_input Input power, derived from input current sensor.
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power3_label "pout"
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power3_input Output power.
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temp1_input VCORE temperature.
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temp1_crit Critical high temperature.
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temp1_crit_alarm Chip temperature critical high alarm.
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temp1_max Maximum temperature.
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temp1_max_alarm Chip temperature high alarm.
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temp2_input TSENSE_0 temperature
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temp3_input TSENSE_1 temperature
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temp4_input TSENSE_2 temperature
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temp5_input TSENSE_3 temperature
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temp6_input VSA temperature.
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temp6_crit Critical high temperature.
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temp6_crit_alarm Chip temperature critical high alarm.
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temp6_max Maximum temperature.
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temp6_max_alarm Chip temperature high alarm.
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=============================== ===============================================
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