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- Kernel driver zl6100
- ====================
- Supported chips:
- * Intersil / Zilker Labs ZL2004
- Prefix: 'zl2004'
- Addresses scanned: -
- Datasheet: http://www.intersil.com/data/fn/fn6847.pdf
- * Intersil / Zilker Labs ZL2005
- Prefix: 'zl2005'
- Addresses scanned: -
- Datasheet: http://www.intersil.com/data/fn/fn6848.pdf
- * Intersil / Zilker Labs ZL2006
- Prefix: 'zl2006'
- Addresses scanned: -
- Datasheet: http://www.intersil.com/data/fn/fn6850.pdf
- * Intersil / Zilker Labs ZL2008
- Prefix: 'zl2008'
- Addresses scanned: -
- Datasheet: http://www.intersil.com/data/fn/fn6859.pdf
- * Intersil / Zilker Labs ZL2105
- Prefix: 'zl2105'
- Addresses scanned: -
- Datasheet: http://www.intersil.com/data/fn/fn6851.pdf
- * Intersil / Zilker Labs ZL2106
- Prefix: 'zl2106'
- Addresses scanned: -
- Datasheet: http://www.intersil.com/data/fn/fn6852.pdf
- * Intersil / Zilker Labs ZL6100
- Prefix: 'zl6100'
- Addresses scanned: -
- Datasheet: http://www.intersil.com/data/fn/fn6876.pdf
- * Intersil / Zilker Labs ZL6105
- Prefix: 'zl6105'
- Addresses scanned: -
- Datasheet: http://www.intersil.com/data/fn/fn6906.pdf
- Author: Guenter Roeck <guenter.roeck@ericsson.com>
- Description
- -----------
- This driver supports hardware montoring for Intersil / Zilker Labs ZL6100 and
- compatible digital DC-DC controllers.
- The driver is a client driver to the core PMBus driver. Please see
- Documentation/hwmon/pmbus and Documentation.hwmon/pmbus-core 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.
- WARNING: Do not access chip registers using the i2cdump command, and do not use
- any of the i2ctools commands on a command register used to save and restore
- configuration data (0x11, 0x12, 0x15, 0x16, and 0xf4). The chips supported by
- this driver interpret any access to those command registers (including read
- commands) as request to execute the command in question. Unless write accesses
- to those registers are protected, this may result in power loss, board resets,
- and/or Flash corruption. Worst case, your board may turn into a brick.
- Platform data support
- ---------------------
- The driver supports standard PMBus driver platform data.
- Module parameters
- -----------------
- delay
- -----
- Some Intersil/Zilker Labs DC-DC controllers require a minimum interval between
- I2C bus accesses. According to Intersil, the minimum interval is 2 ms, though
- 1 ms appears to be sufficient and has not caused any problems in testing.
- The problem is known to affect ZL6100, ZL2105, and ZL2008. It is known not to
- affect ZL2004 and ZL6105. The driver automatically sets the interval to 1 ms
- except for ZL2004 and ZL6105. To enable manual override, the driver provides a
- writeable module parameter, 'delay', which can be used to set the interval to
- a value between 0 and 65,535 microseconds.
- Sysfs entries
- -------------
- The following attributes are supported. Limits are read-write; all other
- attributes are read-only.
- in1_label "vin"
- in1_input Measured input voltage.
- in1_min Minimum input voltage.
- in1_max Maximum input voltage.
- in1_lcrit Critical minumum input voltage.
- in1_crit Critical maximum input voltage.
- in1_min_alarm Input voltage low alarm.
- in1_max_alarm Input voltage high alarm.
- in1_lcrit_alarm Input voltage critical low alarm.
- in1_crit_alarm Input voltage critical high alarm.
- in2_label "vout1"
- in2_input Measured output voltage.
- in2_lcrit Critical minumum output Voltage.
- in2_crit Critical maximum output voltage.
- in2_lcrit_alarm Critical output voltage critical low alarm.
- in2_crit_alarm Critical output voltage critical high alarm.
- curr1_label "iout1"
- curr1_input Measured output current.
- curr1_lcrit Critical minimum output current.
- curr1_crit Critical maximum output current.
- curr1_lcrit_alarm Output current critical low alarm.
- curr1_crit_alarm Output current critical high alarm.
- temp[12]_input Measured temperature.
- temp[12]_min Minimum temperature.
- temp[12]_max Maximum temperature.
- temp[12]_lcrit Critical low temperature.
- temp[12]_crit Critical high temperature.
- temp[12]_min_alarm Chip temperature low alarm.
- temp[12]_max_alarm Chip temperature high alarm.
- temp[12]_lcrit_alarm Chip temperature critical low alarm.
- temp[12]_crit_alarm Chip temperature critical high alarm.
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