| Kernel driver tps40422 | |
| ====================== | |
| Supported chips: | |
| * TI TPS40422 | |
| Prefix: 'tps40422' | |
| Addresses scanned: - | |
| Datasheet: http://www.ti.com/lit/gpn/tps40422 | |
| Author: Zhu Laiwen <richard.zhu@nsn.com> | |
| Description | |
| ----------- | |
| This driver supports TI TPS40422 Dual-Output or Two-Phase Synchronous Buck | |
| Controller with PMBus | |
| The driver is a client driver to the core PMBus driver. | |
| Please see Documentation/hwmon/pmbus for details on PMBus client drivers. | |
| Usage Notes | |
| ----------- | |
| This driver does not auto-detect devices. You will have to instantiate the | |
| devices explicitly. Please see Documentation/i2c/instantiating-devices for | |
| details. | |
| Platform data support | |
| --------------------- | |
| The driver supports standard PMBus driver platform data. | |
| Sysfs entries | |
| ------------- | |
| The following attributes are supported. | |
| in[1-2]_label "vout[1-2]" | |
| in[1-2]_input Measured voltage. From READ_VOUT register. | |
| in[1-2]_alarm voltage alarm. | |
| curr[1-2]_input Measured current. From READ_IOUT register. | |
| curr[1-2]_label "iout[1-2]" | |
| curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register. | |
| curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register. | |
| curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT status. | |
| curr1_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status. | |
| curr2_alarm Current high alarm. From IOUT_OC_WARNING status. | |
| temp1_input Measured temperature. From READ_TEMPERATURE_2 register on page 0. | |
| temp1_max Maximum temperature. From OT_WARN_LIMIT register. | |
| temp1_crit Critical high temperature. From OT_FAULT_LIMIT register. | |
| temp1_max_alarm Chip temperature high alarm. Set by comparing | |
| READ_TEMPERATURE_2 on page 0 with OT_WARN_LIMIT if TEMP_OT_WARNING | |
| status is set. | |
| temp1_crit_alarm Chip temperature critical high alarm. Set by comparing | |
| READ_TEMPERATURE_2 on page 0 with OT_FAULT_LIMIT if TEMP_OT_FAULT | |
| status is set. | |
| temp2_input Measured temperature. From READ_TEMPERATURE_2 register on page 1. | |
| temp2_alarm Chip temperature alarm on page 1. |