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137 lines
5.6 KiB
137 lines
5.6 KiB
Kernel driver ucd9000 |
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===================== |
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Supported chips: |
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* TI UCD90120, UCD90124, UCD90160, UCD90320, UCD9090, and UCD90910 |
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Prefixes: 'ucd90120', 'ucd90124', 'ucd90160', 'ucd90320', 'ucd9090', |
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'ucd90910' |
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Addresses scanned: - |
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Datasheets: |
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- http://focus.ti.com/lit/ds/symlink/ucd90120.pdf |
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- http://focus.ti.com/lit/ds/symlink/ucd90124.pdf |
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- http://focus.ti.com/lit/ds/symlink/ucd90160.pdf |
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- http://focus.ti.com/lit/ds/symlink/ucd90320.pdf |
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- http://focus.ti.com/lit/ds/symlink/ucd9090.pdf |
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- http://focus.ti.com/lit/ds/symlink/ucd90910.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: |
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The UCD90120 Power Supply Sequencer and System Health Monitor monitors and |
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sequences up to 12 independent voltage rails. The device integrates a 12-bit |
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ADC with a 2.5V internal reference for monitoring up to 13 power supply voltage, |
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current, or temperature inputs. |
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The UCD90124 is a 12-rail PMBus/I2C addressable power-supply sequencer and |
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system-health monitor. The device integrates a 12-bit ADC for monitoring up to |
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13 power-supply voltage, current, or temperature inputs. Twenty-six GPIO pins |
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can be used for power supply enables, power-on reset signals, external |
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interrupts, cascading, or other system functions. Twelve of these pins offer PWM |
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functionality. Using these pins, the UCD90124 offers support for fan control, |
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margining, and general-purpose PWM functions. |
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The UCD90160 is a 16-rail PMBus/I2C addressable power-supply sequencer and |
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monitor. The device integrates a 12-bit ADC for monitoring up to 16 power-supply |
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voltage inputs. Twenty-six GPIO pins can be used for power supply enables, |
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power-on reset signals, external interrupts, cascading, or other system |
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functions. Twelve of these pins offer PWM functionality. Using these pins, the |
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UCD90160 offers support for margining, and general-purpose PWM functions. |
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The UCD90320 is a 32-rail PMBus/I2C addressable power-supply sequencer and |
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monitor. The 24 integrated ADC channels (AMONx) monitor the power supply |
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voltage, current, and temperature. Of the 84 GPIO pins, 8 can be used as |
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digital monitors (DMONx), 32 to enable the power supply (ENx), 24 for margining |
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(MARx), 16 for logical GPO, and 32 GPIs for cascading, and system function. |
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The UCD9090 is a 10-rail PMBus/I2C addressable power-supply sequencer and |
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monitor. The device integrates a 12-bit ADC for monitoring up to 10 power-supply |
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voltage inputs. Twenty-three GPIO pins can be used for power supply enables, |
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power-on reset signals, external interrupts, cascading, or other system |
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functions. Ten of these pins offer PWM functionality. Using these pins, the |
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UCD9090 offers support for margining, and general-purpose PWM functions. |
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The UCD90910 is a ten-rail I2C / PMBus addressable power-supply sequencer and |
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system-health monitor. The device integrates a 12-bit ADC for monitoring up to |
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13 power-supply voltage, current, or temperature inputs. |
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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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in[1-12]_label "vout[1-12]". |
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in[1-12]_input Measured voltage. From READ_VOUT register. |
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in[1-12]_min Minimum Voltage. From VOUT_UV_WARN_LIMIT register. |
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in[1-12]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register. |
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in[1-12]_lcrit Critical minimum Voltage. VOUT_UV_FAULT_LIMIT register. |
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in[1-12]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT |
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register. |
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in[1-12]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status. |
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in[1-12]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status. |
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in[1-12]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT |
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status. |
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in[1-12]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT |
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status. |
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curr[1-12]_label "iout[1-12]". |
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curr[1-12]_input Measured current. From READ_IOUT register. |
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curr[1-12]_max Maximum current. From IOUT_OC_WARN_LIMIT register. |
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curr[1-12]_lcrit Critical minimum output current. From |
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IOUT_UC_FAULT_LIMIT register. |
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curr[1-12]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT |
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register. |
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curr[1-12]_max_alarm Current high alarm. From IOUT_OC_WARNING status. |
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curr[1-12]_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status. |
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For each attribute index, either voltage or current is |
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reported, but not both. If voltage or current is |
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reported depends on the chip configuration. |
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temp[1-2]_input Measured temperatures. From READ_TEMPERATURE_1 and |
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READ_TEMPERATURE_2 registers. |
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temp[1-2]_max Maximum temperature. From OT_WARN_LIMIT register. |
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temp[1-2]_crit Critical high temperature. From OT_FAULT_LIMIT register. |
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temp[1-2]_max_alarm Temperature high alarm. |
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temp[1-2]_crit_alarm Temperature critical high alarm. |
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fan[1-4]_input Fan RPM. |
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fan[1-4]_alarm Fan alarm. |
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fan[1-4]_fault Fan fault. |
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Fan attributes are only available on chips supporting |
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fan control (UCD90124, UCD90910). Attribute files are |
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created only for enabled fans. |
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Note that even though UCD90910 supports up to 10 fans, |
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only up to four fans are currently supported. |
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======================= ========================================================
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