| .. SPDX-License-Identifier: GPL-2.0 |
| |
| Kernel driver adp1050 |
| ===================== |
| |
| Supported chips: |
| |
| * Analog Devices ADP1050 |
| |
| Prefix: 'adp1050' |
| |
| Addresses scanned: I2C 0x70 - 0x77 |
| |
| Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADP1050.pdf |
| |
| * Analog Devices ADP1051 |
| |
| Prefix: 'adp1051' |
| |
| Addresses scanned: I2C 0x70 - 0x77 |
| |
| Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADP1051.pdf |
| |
| * Analog Devices ADP1055 |
| |
| Prefix: 'adp1055' |
| |
| Addresses scanned: I2C 0x4B - 0x77 |
| |
| Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADP1055.pdf |
| |
| * Analog Devices LTP8800-1A/-2/-4A |
| |
| Prefix: 'ltp8800' |
| |
| Addresses scanned: - |
| |
| Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/LTP8800-1A.pdf |
| https://www.analog.com/media/en/technical-documentation/data-sheets/LTP8800-2.pdf |
| https://www.analog.com/media/en/technical-documentation/data-sheets/LTP8800-4A.pdf |
| |
| Authors: |
| |
| - Radu Sabau <radu.sabau@analog.com> |
| |
| |
| Description |
| ----------- |
| |
| This driver supports hardware monitoring for Analog Devices ADP1050, ADP1051, |
| and ADP1055 Digital Controller for Isolated Power Supply with PMBus interface, |
| and the LTP8800 step-down μModule regulators. |
| |
| The ADP1050, ADP1051, and ADP1055 are advanced digital controllers with PMBus™ |
| interface targeting high density, high efficiency dc-to-dc power |
| conversion used to monitor system temperatures, voltages and currents. The |
| LTP8800 is a family of step-down μModule regulators that provides microprocessor |
| core voltage from 54V power distribution architecture. Through the PMBus |
| interface, the device can monitor input/output voltages, input current and |
| temperature. |
| |
| Usage Notes |
| ----------- |
| |
| This driver does not auto-detect devices. You will have to instantiate |
| the devices explicitly. |
| Please see Documentation/i2c/instantiating-devices.rst for details. |
| |
| Platform data support |
| --------------------- |
| |
| The driver supports standard PMBus driver platform data. |
| |
| Sysfs Attributes |
| ---------------- |
| |
| ================= ======================================== |
| in1_label "vin" |
| in1_input Measured input voltage |
| in1_alarm Input voltage alarm |
| in1_crit Critical maximum input voltage |
| in1_crit_alarm Input voltage high alarm |
| in1_lcrit Critical minimum input voltage |
| in1_lcrit_alarm Input voltage critical low alarm |
| in2_label "vout1" |
| in2_input Measured output voltage |
| in2_crit Critical maximum output voltage |
| in2_crit_alarm Output voltage high alarm |
| in2_lcrit Critical minimum output voltage |
| in2_lcrit_alarm Output voltage critical low alarm |
| in2_max Critical maximum output voltage |
| in2_max_alarm Output voltage critical max alarm |
| in2_min Critical minimum output voltage |
| in2_min_alarm Output voltage critical min alarm |
| curr1_label "iin" |
| curr1_input Measured input current. |
| curr1_alarm Input current alarm |
| curr1_crit Critical maximum input current |
| curr1_crit_alarm Input current high alarm |
| curr2_label "iout1" |
| curr2_input Measured output current |
| curr2_alarm Output current alarm |
| curr2_crit Critical maximum output current |
| curr2_crit_alarm Output current high alarm |
| curr2_lcrit Critical minimum output current |
| curr2_lcrit_alarm Output current critical low alarm |
| curr2_max Critical maximum output current |
| curr2_max_alarm Output current critical max alarm |
| power1_label "pout1" |
| power1_input Measured output power |
| power1_crit Critical maximum output power |
| power1_crit_alarm Output power high alarm |
| temp1_input Measured temperature |
| temp1_crit Critical high temperature |
| temp1_crit_alarm Chip temperature critical high alarm |
| temp1_max Critical maximum temperature |
| temp1_max_alarm Temperature critical max alarm |
| temp2_input Measured temperature |
| temp2_crit Critical high temperature |
| temp2_crit_alarm Chip temperature critical high alarm |
| temp2_max Critical maximum temperature |
| temp2_max_alarm Temperature critical max alarm |
| ================= ======================================== |
