5 * Intersil / Zilker Labs ZL2004
8 Datasheet: http://www.intersil.com/data/fn/fn6847.pdf
9 * Intersil / Zilker Labs ZL2005
12 Datasheet: http://www.intersil.com/data/fn/fn6848.pdf
13 * Intersil / Zilker Labs ZL2006
16 Datasheet: http://www.intersil.com/data/fn/fn6850.pdf
17 * Intersil / Zilker Labs ZL2008
20 Datasheet: http://www.intersil.com/data/fn/fn6859.pdf
21 * Intersil / Zilker Labs ZL2105
24 Datasheet: http://www.intersil.com/data/fn/fn6851.pdf
25 * Intersil / Zilker Labs ZL2106
28 Datasheet: http://www.intersil.com/data/fn/fn6852.pdf
29 * Intersil / Zilker Labs ZL6100
32 Datasheet: http://www.intersil.com/data/fn/fn6876.pdf
33 * Intersil / Zilker Labs ZL6105
36 Datasheet: http://www.intersil.com/data/fn/fn6906.pdf
37 * Ericsson BMR450, BMR451
38 Prefix: 'bmr450', 'bmr451'
41 http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146401
42 * Ericsson BMR462, BMR463, BMR464
43 Prefixes: 'bmr462', 'bmr463', 'bmr464'
46 http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146256
49 Author: Guenter Roeck <guenter.roeck@ericsson.com>
55 This driver supports hardware montoring for Intersil / Zilker Labs ZL6100 and
56 compatible digital DC-DC controllers.
58 The driver is a client driver to the core PMBus driver. Please see
59 Documentation/hwmon/pmbus and Documentation.hwmon/pmbus-core for details
60 on PMBus client drivers.
66 This driver does not auto-detect devices. You will have to instantiate the
67 devices explicitly. Please see Documentation/i2c/instantiating-devices for
70 WARNING: Do not access chip registers using the i2cdump command, and do not use
71 any of the i2ctools commands on a command register used to save and restore
72 configuration data (0x11, 0x12, 0x15, 0x16, and 0xf4). The chips supported by
73 this driver interpret any access to those command registers (including read
74 commands) as request to execute the command in question. Unless write accesses
75 to those registers are protected, this may result in power loss, board resets,
76 and/or Flash corruption. Worst case, your board may turn into a brick.
82 The driver supports standard PMBus driver platform data.
91 Some Intersil/Zilker Labs DC-DC controllers require a minimum interval between
92 I2C bus accesses. According to Intersil, the minimum interval is 2 ms, though
93 1 ms appears to be sufficient and has not caused any problems in testing.
94 The problem is known to affect ZL6100, ZL2105, and ZL2008. It is known not to
95 affect ZL2004 and ZL6105. The driver automatically sets the interval to 1 ms
96 except for ZL2004 and ZL6105. To enable manual override, the driver provides a
97 writeable module parameter, 'delay', which can be used to set the interval to
98 a value between 0 and 65,535 microseconds.
104 The following attributes are supported. Limits are read-write; all other
105 attributes are read-only.
108 in1_input Measured input voltage.
109 in1_min Minimum input voltage.
110 in1_max Maximum input voltage.
111 in1_lcrit Critical minumum input voltage.
112 in1_crit Critical maximum input voltage.
113 in1_min_alarm Input voltage low alarm.
114 in1_max_alarm Input voltage high alarm.
115 in1_lcrit_alarm Input voltage critical low alarm.
116 in1_crit_alarm Input voltage critical high alarm.
119 in2_input Measured output voltage.
120 in2_lcrit Critical minumum output Voltage.
121 in2_crit Critical maximum output voltage.
122 in2_lcrit_alarm Critical output voltage critical low alarm.
123 in2_crit_alarm Critical output voltage critical high alarm.
126 curr1_input Measured output current.
127 curr1_lcrit Critical minimum output current.
128 curr1_crit Critical maximum output current.
129 curr1_lcrit_alarm Output current critical low alarm.
130 curr1_crit_alarm Output current critical high alarm.
132 temp[12]_input Measured temperature.
133 temp[12]_min Minimum temperature.
134 temp[12]_max Maximum temperature.
135 temp[12]_lcrit Critical low temperature.
136 temp[12]_crit Critical high temperature.
137 temp[12]_min_alarm Chip temperature low alarm.
138 temp[12]_max_alarm Chip temperature high alarm.
139 temp[12]_lcrit_alarm Chip temperature critical low alarm.
140 temp[12]_crit_alarm Chip temperature critical high alarm.