1Kernel driver max8688 2===================== 3 4Supported chips: 5 6 * Maxim MAX8688 7 8 Prefix: 'max8688' 9 10 Addresses scanned: - 11 12 Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX8688.pdf 13 14Author: Guenter Roeck <linux@roeck-us.net> 15 16 17Description 18----------- 19 20This driver supports hardware monitoring for Maxim MAX8688 Digital Power-Supply 21Controller/Monitor with PMBus Interface. 22 23The driver is a client driver to the core PMBus driver. Please see 24Documentation/hwmon/pmbus.rst for details on PMBus client drivers. 25 26 27Usage Notes 28----------- 29 30This driver does not auto-detect devices. You will have to instantiate the 31devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for 32details. 33 34 35Platform data support 36--------------------- 37 38The driver supports standard PMBus driver platform data. 39 40 41Sysfs entries 42------------- 43 44The following attributes are supported. Limits are read-write; all other 45attributes are read-only. 46 47======================= ======================================================== 48in1_label "vout1" 49in1_input Measured voltage. From READ_VOUT register. 50in1_min Minimum Voltage. From VOUT_UV_WARN_LIMIT register. 51in1_max Maximum voltage. From VOUT_OV_WARN_LIMIT register. 52in1_lcrit Critical minimum Voltage. VOUT_UV_FAULT_LIMIT register. 53in1_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT 54 register. 55in1_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status. 56in1_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status. 57in1_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT 58 status. 59in1_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT 60 status. 61in1_highest Historical maximum voltage. 62in1_reset_history Write any value to reset history. 63 64curr1_label "iout1" 65curr1_input Measured current. From READ_IOUT register. 66curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register. 67curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT 68 register. 69curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT register. 70curr1_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status. 71curr1_highest Historical maximum current. 72curr1_reset_history Write any value to reset history. 73 74temp1_input Measured temperature. From READ_TEMPERATURE_1 register. 75temp1_max Maximum temperature. From OT_WARN_LIMIT register. 76temp1_crit Critical high temperature. From OT_FAULT_LIMIT register. 77temp1_max_alarm Chip temperature high alarm. Set by comparing 78 READ_TEMPERATURE_1 with OT_WARN_LIMIT if TEMP_OT_WARNING 79 status is set. 80temp1_crit_alarm Chip temperature critical high alarm. Set by comparing 81 READ_TEMPERATURE_1 with OT_FAULT_LIMIT if TEMP_OT_FAULT 82 status is set. 83temp1_highest Historical maximum temperature. 84temp1_reset_history Write any value to reset history. 85======================= ======================================================== 86