1.. SPDX-License-Identifier: GPL-2.0-or-later 2 3Kernel driver max20730 4====================== 5 6Supported chips: 7 8 * Maxim MAX20730 9 10 Prefix: 'max20730' 11 12 Addresses scanned: - 13 14 Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20730.pdf 15 16 * Maxim MAX20734 17 18 Prefix: 'max20734' 19 20 Addresses scanned: - 21 22 Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20734.pdf 23 24 * Maxim MAX20743 25 26 Prefix: 'max20743' 27 28 Addresses scanned: - 29 30 Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20743.pdf 31 32Author: Guenter Roeck <linux@roeck-us.net> 33 34 35Description 36----------- 37 38This driver implements support for Maxim MAX20730, MAX20734, and MAX20743 39Integrated, Step-Down Switching Regulators with PMBus support. 40 41The driver is a client driver to the core PMBus driver. 42Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers. 43 44 45Usage Notes 46----------- 47 48This driver does not auto-detect devices. You will have to instantiate the 49devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for 50details. 51 52 53Sysfs entries 54------------- 55 56=================== ===== ======================================================= 57curr1_crit RW/RO Critical output current. Please see datasheet for 58 supported limits. Read-only if the chip is 59 write protected; read-write otherwise. 60curr1_crit_alarm RO Output current critical alarm 61curr1_input RO Output current 62curr1_label RO 'iout1' 63in1_alarm RO Input voltage alarm 64in1_input RO Input voltage 65in1_label RO 'vin' 66in2_alarm RO Output voltage alarm 67in2_input RO Output voltage 68in2_label RO 'vout1' 69temp1_crit RW/RO Critical temeperature. Supported values are 130 or 150 70 degrees C. Read-only if the chip is write protected; 71 read-write otherwise. 72temp1_crit_alarm RO Temperature critical alarm 73temp1_input RO Chip temperature 74=================== ===== ======================================================= 75