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124 lines
4.5 KiB
124 lines
4.5 KiB
Kernel driver ucd9200 |
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===================== |
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Supported chips: |
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* TI UCD9220, UCD9222, UCD9224, UCD9240, UCD9244, UCD9246, and UCD9248 |
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Prefixes: 'ucd9220', 'ucd9222', 'ucd9224', 'ucd9240', 'ucd9244', 'ucd9246', |
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'ucd9248' |
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Addresses scanned: - |
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Datasheets: |
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- http://focus.ti.com/lit/ds/symlink/ucd9220.pdf |
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- http://focus.ti.com/lit/ds/symlink/ucd9222.pdf |
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- http://focus.ti.com/lit/ds/symlink/ucd9224.pdf |
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- http://focus.ti.com/lit/ds/symlink/ucd9240.pdf |
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- http://focus.ti.com/lit/ds/symlink/ucd9244.pdf |
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- http://focus.ti.com/lit/ds/symlink/ucd9246.pdf |
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- http://focus.ti.com/lit/ds/symlink/ucd9248.pdf |
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Author: Guenter Roeck <[email protected]> |
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Description |
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----------- |
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[From datasheets] UCD9220, UCD9222, UCD9224, UCD9240, UCD9244, UCD9246, and |
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UCD9248 are multi-rail, multi-phase synchronous buck digital PWM controllers |
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designed for non-isolated DC/DC power applications. The devices integrate |
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dedicated circuitry for DC/DC loop management with flash memory and a serial |
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interface to support configuration, monitoring and management. |
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This driver is a client driver to the core PMBus driver. Please see |
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Documentation/hwmon/pmbus.rst for details on PMBus client drivers. |
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Usage Notes |
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----------- |
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This driver does not auto-detect devices. You will have to instantiate the |
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devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for |
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details. |
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Platform data support |
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--------------------- |
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The driver supports standard PMBus driver platform data. Please see |
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Documentation/hwmon/pmbus.rst for details. |
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Sysfs entries |
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------------- |
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The following attributes are supported. Limits are read-write; all other |
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attributes are read-only. |
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======================= ======================================================== |
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in1_label "vin". |
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in1_input Measured voltage. From READ_VIN register. |
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in1_min Minimum Voltage. From VIN_UV_WARN_LIMIT register. |
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in1_max Maximum voltage. From VIN_OV_WARN_LIMIT register. |
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in1_lcrit Critical minimum Voltage. VIN_UV_FAULT_LIMIT register. |
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in1_crit Critical maximum voltage. From VIN_OV_FAULT_LIMIT |
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register. |
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in1_min_alarm Voltage low alarm. From VIN_UV_WARNING status. |
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in1_max_alarm Voltage high alarm. From VIN_OV_WARNING status. |
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in1_lcrit_alarm Voltage critical low alarm. From VIN_UV_FAULT status. |
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in1_crit_alarm Voltage critical high alarm. From VIN_OV_FAULT status. |
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in[2-5]_label "vout[1-4]". |
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in[2-5]_input Measured voltage. From READ_VOUT register. |
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in[2-5]_min Minimum Voltage. From VOUT_UV_WARN_LIMIT register. |
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in[2-5]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register. |
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in[2-5]_lcrit Critical minimum Voltage. VOUT_UV_FAULT_LIMIT register. |
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in[2-5]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT |
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register. |
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in[2-5]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status. |
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in[2-5]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status. |
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in[2-5]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT |
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status. |
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in[2-5]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT |
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status. |
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curr1_label "iin". |
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curr1_input Measured current. From READ_IIN register. |
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curr[2-5]_label "iout[1-4]". |
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curr[2-5]_input Measured current. From READ_IOUT register. |
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curr[2-5]_max Maximum current. From IOUT_OC_WARN_LIMIT register. |
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curr[2-5]_lcrit Critical minimum output current. From |
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IOUT_UC_FAULT_LIMIT register. |
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curr[2-5]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT |
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register. |
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curr[2-5]_max_alarm Current high alarm. From IOUT_OC_WARNING status. |
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curr[2-5]_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status. |
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power1_input Measured input power. From READ_PIN register. |
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power1_label "pin" |
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power[2-5]_input Measured output power. From READ_POUT register. |
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power[2-5]_label "pout[1-4]" |
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The number of output voltage, current, and power |
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attribute sets is determined by the number of enabled |
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rails. See chip datasheets for details. |
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temp[1-5]_input Measured temperatures. From READ_TEMPERATURE_1 and |
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READ_TEMPERATURE_2 registers. |
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temp1 is the chip internal temperature. temp[2-5] are |
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rail temperatures. temp[2-5] attributes are only |
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created for enabled rails. See chip datasheets for |
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details. |
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temp[1-5]_max Maximum temperature. From OT_WARN_LIMIT register. |
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temp[1-5]_crit Critical high temperature. From OT_FAULT_LIMIT register. |
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temp[1-5]_max_alarm Temperature high alarm. |
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temp[1-5]_crit_alarm Temperature critical high alarm. |
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fan1_input Fan RPM. ucd9240 only. |
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fan1_alarm Fan alarm. ucd9240 only. |
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fan1_fault Fan fault. ucd9240 only. |
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======================= ========================================================
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