6 * Intersil / Zilker Labs ZL2004
12 Datasheet: http://www.intersil.com/data/fn/fn6847.pdf
14 * Intersil / Zilker Labs ZL2005
20 Datasheet: http://www.intersil.com/data/fn/fn6848.pdf
22 * Intersil / Zilker Labs ZL2006
28 Datasheet: http://www.intersil.com/data/fn/fn6850.pdf
30 * Intersil / Zilker Labs ZL2008
36 Datasheet: http://www.intersil.com/data/fn/fn6859.pdf
38 * Intersil / Zilker Labs ZL2105
44 Datasheet: http://www.intersil.com/data/fn/fn6851.pdf
46 * Intersil / Zilker Labs ZL2106
52 Datasheet: http://www.intersil.com/data/fn/fn6852.pdf
54 * Intersil / Zilker Labs ZL6100
60 Datasheet: http://www.intersil.com/data/fn/fn6876.pdf
62 * Intersil / Zilker Labs ZL6105
68 Datasheet: http://www.intersil.com/data/fn/fn6906.pdf
70 * Intersil / Zilker Labs ZL9101M
76 Datasheet: http://www.intersil.com/data/fn/fn7669.pdf
78 * Intersil / Zilker Labs ZL9117M
84 Datasheet: http://www.intersil.com/data/fn/fn7914.pdf
86 * Ericsson BMR450, BMR451
88 Prefix: 'bmr450', 'bmr451'
94 http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146401
96 * Ericsson BMR462, BMR463, BMR464
98 Prefixes: 'bmr462', 'bmr463', 'bmr464'
104 http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146256
106 Author: Guenter Roeck <linux@roeck-us.net>
112 This driver supports hardware monitoring for Intersil / Zilker Labs ZL6100 and
113 compatible digital DC-DC controllers.
115 The driver is a client driver to the core PMBus driver. Please see
116 Documentation/hwmon/pmbus.rst and Documentation.hwmon/pmbus-core for details
117 on PMBus client drivers.
123 This driver does not auto-detect devices. You will have to instantiate the
124 devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
129 Do not access chip registers using the i2cdump command, and do not use
130 any of the i2ctools commands on a command register used to save and restore
131 configuration data (0x11, 0x12, 0x15, 0x16, and 0xf4). The chips supported by
132 this driver interpret any access to those command registers (including read
133 commands) as request to execute the command in question. Unless write accesses
134 to those registers are protected, this may result in power loss, board resets,
135 and/or Flash corruption. Worst case, your board may turn into a brick.
138 Platform data support
139 ---------------------
141 The driver supports standard PMBus driver platform data.
150 Intersil/Zilker Labs DC-DC controllers require a minimum interval between I2C
151 bus accesses. According to Intersil, the minimum interval is 2 ms, though 1 ms
152 appears to be sufficient and has not caused any problems in testing. The problem
153 is known to affect all currently supported chips. For manual override, the
154 driver provides a writeable module parameter, 'delay', which can be used to set
155 the interval to a value between 0 and 65,535 microseconds.
161 The following attributes are supported. Limits are read-write; all other
162 attributes are read-only.
164 ======================= ========================================================
166 in1_input Measured input voltage.
167 in1_min Minimum input voltage.
168 in1_max Maximum input voltage.
169 in1_lcrit Critical minimum input voltage.
170 in1_crit Critical maximum input voltage.
171 in1_min_alarm Input voltage low alarm.
172 in1_max_alarm Input voltage high alarm.
173 in1_lcrit_alarm Input voltage critical low alarm.
174 in1_crit_alarm Input voltage critical high alarm.
177 in2_input Measured voltage on VMON (ZL2004) or VDRV (ZL9101M,
178 ZL9117M) pin. Reported voltage is 16x the voltage on the
179 pin (adjusted internally by the chip).
180 in2_lcrit Critical minimum VMON/VDRV Voltage.
181 in2_crit Critical maximum VMON/VDRV voltage.
182 in2_lcrit_alarm VMON/VDRV voltage critical low alarm.
183 in2_crit_alarm VMON/VDRV voltage critical high alarm.
185 vmon attributes are supported on ZL2004, ZL9101M,
189 inX_input Measured output voltage.
190 inX_lcrit Critical minimum output Voltage.
191 inX_crit Critical maximum output voltage.
192 inX_lcrit_alarm Critical output voltage critical low alarm.
193 inX_crit_alarm Critical output voltage critical high alarm.
195 X is 3 for ZL2004, ZL9101M, and ZL9117M, 2 otherwise.
198 curr1_input Measured output current.
199 curr1_lcrit Critical minimum output current.
200 curr1_crit Critical maximum output current.
201 curr1_lcrit_alarm Output current critical low alarm.
202 curr1_crit_alarm Output current critical high alarm.
204 temp[12]_input Measured temperature.
205 temp[12]_min Minimum temperature.
206 temp[12]_max Maximum temperature.
207 temp[12]_lcrit Critical low temperature.
208 temp[12]_crit Critical high temperature.
209 temp[12]_min_alarm Chip temperature low alarm.
210 temp[12]_max_alarm Chip temperature high alarm.
211 temp[12]_lcrit_alarm Chip temperature critical low alarm.
212 temp[12]_crit_alarm Chip temperature critical high alarm.
213 ======================= ========================================================