1 Kernel driver tps40422 2 ====================== 3 4 Supported chips: 5 6 * TI TPS40422 7 8 Prefix: 'tps40422' 9 10 Addresses scanned: - 11 12 Datasheet: https://www.ti.com/lit/gpn/tps40422 13 14 Author: Zhu Laiwen <richard.zhu@nsn.com> 15 16 17 Description 18 ----------- 19 20 This driver supports TI TPS40422 Dual-Output or Two-Phase Synchronous Buck 21 Controller with PMBus 22 23 The driver is a client driver to the core PMBus driver. 24 Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers. 25 26 27 Usage Notes 28 ----------- 29 30 This driver does not auto-detect devices. You will have to instantiate the 31 devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for 32 details. 33 34 35 Platform data support 36 --------------------- 37 38 The driver supports standard PMBus driver platform data. 39 40 41 Sysfs entries 42 ------------- 43 44 The following attributes are supported. 45 46 ======================= ======================================================= 47 in[1-2]_label "vout[1-2]" 48 in[1-2]_input Measured voltage. From READ_VOUT register. 49 in[1-2]_alarm voltage alarm. 50 51 curr[1-2]_input Measured current. From READ_IOUT register. 52 curr[1-2]_label "iout[1-2]" 53 curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register. 54 curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT 55 register. 56 curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT status. 57 curr1_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status. 58 curr2_alarm Current high alarm. From IOUT_OC_WARNING status. 59 60 temp1_input Measured temperature. From READ_TEMPERATURE_2 register 61 on page 0. 62 temp1_max Maximum temperature. From OT_WARN_LIMIT register. 63 temp1_crit Critical high temperature. From OT_FAULT_LIMIT register. 64 temp1_max_alarm Chip temperature high alarm. Set by comparing 65 READ_TEMPERATURE_2 on page 0 with OT_WARN_LIMIT if 66 TEMP_OT_WARNING status is set. 67 temp1_crit_alarm Chip temperature critical high alarm. Set by comparing 68 READ_TEMPERATURE_2 on page 0 with OT_FAULT_LIMIT if 69 TEMP_OT_FAULT status is set. 70 temp2_input Measured temperature. From READ_TEMPERATURE_2 register 71 on page 1. 72 temp2_alarm Chip temperature alarm on page 1. 73 ======================= =======================================================
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