.. 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 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 ================= ========================================