| 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. |
