5 * Intersil / Zilker Labs ZL2004
8 Datasheet: http://www.intersil.com/data/fn/fn6847.pdf
9 * Intersil / Zilker Labs ZL2006
12 Datasheet: http://www.intersil.com/data/fn/fn6850.pdf
13 * Intersil / Zilker Labs ZL2008
16 Datasheet: http://www.intersil.com/data/fn/fn6859.pdf
17 * Intersil / Zilker Labs ZL2105
20 Datasheet: http://www.intersil.com/data/fn/fn6851.pdf
21 * Intersil / Zilker Labs ZL2106
24 Datasheet: http://www.intersil.com/data/fn/fn6852.pdf
25 * Intersil / Zilker Labs ZL6100
28 Datasheet: http://www.intersil.com/data/fn/fn6876.pdf
29 * Intersil / Zilker Labs ZL6105
32 Datasheet: http://www.intersil.com/data/fn/fn6906.pdf
34 Author: Guenter Roeck <guenter.roeck@ericsson.com>
40 This driver supports hardware montoring for Intersil / Zilker Labs ZL6100 and
41 compatible digital DC-DC controllers.
43 The driver is a client driver to the core PMBus driver. Please see
44 Documentation/hwmon/pmbus and Documentation.hwmon/pmbus-core for details
45 on PMBus client drivers.
51 This driver does not auto-detect devices. You will have to instantiate the
52 devices explicitly. Please see Documentation/i2c/instantiating-devices for
55 WARNING: Do not access chip registers using the i2cdump command, and do not use
56 any of the i2ctools commands on a command register used to save and restore
57 configuration data (0x11, 0x12, 0x15, 0x16, and 0xf4). The chips supported by
58 this driver interpret any access to those command registers (including read
59 commands) as request to execute the command in question. Unless write accesses
60 to those registers are protected, this may result in power loss, board resets,
61 and/or Flash corruption. Worst case, your board may turn into a brick.
67 The driver supports standard PMBus driver platform data.
76 Some Intersil/Zilker Labs DC-DC controllers require a minimum interval between
77 I2C bus accesses. According to Intersil, the minimum interval is 2 ms, though
78 1 ms appears to be sufficient and has not caused any problems in testing.
79 The problem is known to affect ZL6100, ZL2105, and ZL2008. It is known not to
80 affect ZL2004 and ZL6105. The driver automatically sets the interval to 1 ms
81 except for ZL2004 and ZL6105. To enable manual override, the driver provides a
82 writeable module parameter, 'delay', which can be used to set the interval to
83 a value between 0 and 65,535 microseconds.
89 The following attributes are supported. Limits are read-write; all other
90 attributes are read-only.
93 in1_input Measured input voltage.
94 in1_min Minimum input voltage.
95 in1_max Maximum input voltage.
96 in1_lcrit Critical minumum input voltage.
97 in1_crit Critical maximum input voltage.
98 in1_min_alarm Input voltage low alarm.
99 in1_max_alarm Input voltage high alarm.
100 in1_lcrit_alarm Input voltage critical low alarm.
101 in1_crit_alarm Input voltage critical high alarm.
104 in2_input Measured output voltage.
105 in2_lcrit Critical minumum output Voltage.
106 in2_crit Critical maximum output voltage.
107 in2_lcrit_alarm Critical output voltage critical low alarm.
108 in2_crit_alarm Critical output voltage critical high alarm.
111 curr1_input Measured output current.
112 curr1_lcrit Critical minimum output current.
113 curr1_crit Critical maximum output current.
114 curr1_lcrit_alarm Output current critical low alarm.
115 curr1_crit_alarm Output current critical high alarm.
117 temp[12]_input Measured temperature.
118 temp[12]_min Minimum temperature.
119 temp[12]_max Maximum temperature.
120 temp[12]_lcrit Critical low temperature.
121 temp[12]_crit Critical high temperature.
122 temp[12]_min_alarm Chip temperature low alarm.
123 temp[12]_max_alarm Chip temperature high alarm.
124 temp[12]_lcrit_alarm Chip temperature critical low alarm.
125 temp[12]_crit_alarm Chip temperature critical high alarm.