diff options
Diffstat (limited to 'Documentation/hwmon')
| -rw-r--r-- | Documentation/hwmon/pmbus | 5 | ||||
| -rw-r--r-- | Documentation/hwmon/tps40422 | 64 |
2 files changed, 66 insertions, 3 deletions
diff --git a/Documentation/hwmon/pmbus b/Documentation/hwmon/pmbus index cf756ed48ff9..a3557da8f5b4 100644 --- a/Documentation/hwmon/pmbus +++ b/Documentation/hwmon/pmbus @@ -23,12 +23,11 @@ Supported chips: http://www.lineagepower.com/oem/pdf/PDT012A0X.pdf http://www.lineagepower.com/oem/pdf/UDT020A0X.pdf http://www.lineagepower.com/oem/pdf/MDT040A0X.pdf - * Texas Instruments TPS40400, TPS40422 - Prefixes: 'tps40400', 'tps40422' + * Texas Instruments TPS40400 + Prefixes: 'tps40400' Addresses scanned: - Datasheets: http://www.ti.com/lit/gpn/tps40400 - http://www.ti.com/lit/gpn/tps40422 * Generic PMBus devices Prefix: 'pmbus' Addresses scanned: - diff --git a/Documentation/hwmon/tps40422 b/Documentation/hwmon/tps40422 new file mode 100644 index 000000000000..24bb0688d515 --- /dev/null +++ b/Documentation/hwmon/tps40422 @@ -0,0 +1,64 @@ +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. |