126 lines
4.2 KiB
Plaintext
126 lines
4.2 KiB
Plaintext
|
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 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.
|