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 * Intersil / Zilker Labs ZL9101M
40 Datasheet: http://www.intersil.com/data/fn/fn7669.pdf
41 * Intersil / Zilker Labs ZL9117M
44 Datasheet: http://www.intersil.com/data/fn/fn7914.pdf
45 * Ericsson BMR450, BMR451
46 Prefix: 'bmr450', 'bmr451'
49 http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146401
50 * Ericsson BMR462, BMR463, BMR464
51 Prefixes: 'bmr462', 'bmr463', 'bmr464'
54 http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146256
57 Author: Guenter Roeck <linux@roeck-us.net>
63 This driver supports hardware monitoring for Intersil / Zilker Labs ZL6100 and
64 compatible digital DC-DC controllers.
66 The driver is a client driver to the core PMBus driver. Please see
67 Documentation/hwmon/pmbus and Documentation.hwmon/pmbus-core for details
68 on PMBus client drivers.
74 This driver does not auto-detect devices. You will have to instantiate the
75 devices explicitly. Please see Documentation/i2c/instantiating-devices for
78 WARNING: Do not access chip registers using the i2cdump command, and do not use
79 any of the i2ctools commands on a command register used to save and restore
80 configuration data (0x11, 0x12, 0x15, 0x16, and 0xf4). The chips supported by
81 this driver interpret any access to those command registers (including read
82 commands) as request to execute the command in question. Unless write accesses
83 to those registers are protected, this may result in power loss, board resets,
84 and/or Flash corruption. Worst case, your board may turn into a brick.
90 The driver supports standard PMBus driver platform data.
99 Intersil/Zilker Labs DC-DC controllers require a minimum interval between I2C
100 bus accesses. According to Intersil, the minimum interval is 2 ms, though 1 ms
101 appears to be sufficient and has not caused any problems in testing. The problem
102 is known to affect all currently supported chips. For manual override, the
103 driver provides a writeable module parameter, 'delay', which can be used to set
104 the interval to a value between 0 and 65,535 microseconds.
110 The following attributes are supported. Limits are read-write; all other
111 attributes are read-only.
114 in1_input Measured input voltage.
115 in1_min Minimum input voltage.
116 in1_max Maximum input voltage.
117 in1_lcrit Critical minimum input voltage.
118 in1_crit Critical maximum input voltage.
119 in1_min_alarm Input voltage low alarm.
120 in1_max_alarm Input voltage high alarm.
121 in1_lcrit_alarm Input voltage critical low alarm.
122 in1_crit_alarm Input voltage critical high alarm.
125 in2_input Measured voltage on VMON (ZL2004) or VDRV (ZL9101M,
126 ZL9117M) pin. Reported voltage is 16x the voltage on the
127 pin (adjusted internally by the chip).
128 in2_lcrit Critical minimum VMON/VDRV Voltage.
129 in2_crit Critical maximum VMON/VDRV voltage.
130 in2_lcrit_alarm VMON/VDRV voltage critical low alarm.
131 in2_crit_alarm VMON/VDRV voltage critical high alarm.
133 vmon attributes are supported on ZL2004, ZL9101M,
137 inX_input Measured output voltage.
138 inX_lcrit Critical minimum output Voltage.
139 inX_crit Critical maximum output voltage.
140 inX_lcrit_alarm Critical output voltage critical low alarm.
141 inX_crit_alarm Critical output voltage critical high alarm.
143 X is 3 for ZL2004, ZL9101M, and ZL9117M, 2 otherwise.
146 curr1_input Measured output current.
147 curr1_lcrit Critical minimum output current.
148 curr1_crit Critical maximum output current.
149 curr1_lcrit_alarm Output current critical low alarm.
150 curr1_crit_alarm Output current critical high alarm.
152 temp[12]_input Measured temperature.
153 temp[12]_min Minimum temperature.
154 temp[12]_max Maximum temperature.
155 temp[12]_lcrit Critical low temperature.
156 temp[12]_crit Critical high temperature.
157 temp[12]_min_alarm Chip temperature low alarm.
158 temp[12]_max_alarm Chip temperature high alarm.
159 temp[12]_lcrit_alarm Chip temperature critical low alarm.
160 temp[12]_crit_alarm Chip temperature critical high alarm.