6 * Renesas / Intersil / Zilker Labs ZL2004
12 Datasheet: https://www.renesas.com/us/en/document/dst/zl2004-datasheet.pdf
14 * Renesas / Intersil / Zilker Labs ZL2005
20 Datasheet: https://www.renesas.com/us/en/document/dst/zl2005-datasheet.pdf
22 * Renesas / Intersil / Zilker Labs ZL2006
28 Datasheet: https://www.renesas.com/us/en/document/dst/zl2006-datasheet.pdf
30 * Renesas / Intersil / Zilker Labs ZL2008
36 Datasheet: https://www.renesas.com/us/en/document/dst/zl2008-datasheet.pdf
38 * Renesas / Intersil / Zilker Labs ZL2105
44 Datasheet: https://www.renesas.com/us/en/document/dst/zl2105-datasheet.pdf
46 * Renesas / Intersil / Zilker Labs ZL2106
52 Datasheet: https://www.renesas.com/us/en/document/dst/zl2106-datasheet.pdf
54 * Renesas / Intersil / Zilker Labs ZL6100
60 Datasheet: https://www.renesas.com/us/en/document/dst/zl6100-datasheet.pdf
62 * Renesas / Intersil / Zilker Labs ZL6105
68 Datasheet: https://www.renesas.com/us/en/document/dst/zl6105-datasheet.pdf
70 * Renesas / Intersil / Zilker Labs ZL8802
76 Datasheet: https://www.renesas.com/us/en/document/dst/zl8802-datasheet
78 * Renesas / Intersil / Zilker Labs ZL9101M
84 Datasheet: https://www.renesas.com/us/en/document/dst/zl9101m-datasheet
86 * Renesas / Intersil / Zilker Labs ZL9117M
92 Datasheet: https://www.renesas.com/us/en/document/dst/zl9117m-datasheet
94 * Renesas / Intersil / Zilker Labs ZLS1003, ZLS4009
96 Prefix: 'zls1003', zls4009
100 Datasheet: Not published
102 * Flex BMR450, BMR451
104 Prefix: 'bmr450', 'bmr451'
110 https://flexpowermodules.com/resources/fpm-techspec-bmr450-digital-pol-regulators-20a
112 * Flex BMR462, BMR463, BMR464
114 Prefixes: 'bmr462', 'bmr463', 'bmr464'
118 Datasheet: https://flexpowermodules.com/resources/fpm-techspec-bmr462
120 * Flex BMR465, BMR467
122 Prefixes: 'bmr465', 'bmr467'
126 Datasheet: https://flexpowermodules.com/resources/fpm-techspec-bmr465-digital-pol
134 Datasheet: https://flexpowermodules.com/resources/fpm-techspec-bmr466-8x12
142 Datasheet: https://flexpowermodules.com/resources/fpm-techspec-bmr4696001
144 Author: Guenter Roeck <linux@roeck-us.net>
150 This driver supports hardware monitoring for Renesas / Intersil / Zilker Labs
151 ZL6100 and compatible digital DC-DC controllers.
153 The driver is a client driver to the core PMBus driver. Please see
154 Documentation/hwmon/pmbus.rst and Documentation.hwmon/pmbus-core for details
155 on PMBus client drivers.
161 This driver does not auto-detect devices. You will have to instantiate the
162 devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
167 Do not access chip registers using the i2cdump command, and do not use
168 any of the i2ctools commands on a command register used to save and restore
169 configuration data (0x11, 0x12, 0x15, 0x16, and 0xf4). The chips supported by
170 this driver interpret any access to those command registers (including read
171 commands) as request to execute the command in question. Unless write accesses
172 to those registers are protected, this may result in power loss, board resets,
173 and/or Flash corruption. Worst case, your board may turn into a brick.
176 Platform data support
177 ---------------------
179 The driver supports standard PMBus driver platform data.
188 Renesas/Intersil/Zilker Labs DC-DC controllers require a minimum interval
189 between I2C bus accesses. According to Intersil, the minimum interval is 2 ms,
190 though 1 ms appears to be sufficient and has not caused any problems in testing.
191 The problem is known to affect all currently supported chips. For manual override,
192 the driver provides a writeable module parameter, 'delay', which can be used
193 to set the interval to a value between 0 and 65,535 microseconds.
199 The following attributes are supported. Limits are read-write; all other
200 attributes are read-only.
202 ======================= ========================================================
204 in1_input Measured input voltage.
205 in1_min Minimum input voltage.
206 in1_max Maximum input voltage.
207 in1_lcrit Critical minimum input voltage.
208 in1_crit Critical maximum input voltage.
209 in1_min_alarm Input voltage low alarm.
210 in1_max_alarm Input voltage high alarm.
211 in1_lcrit_alarm Input voltage critical low alarm.
212 in1_crit_alarm Input voltage critical high alarm.
215 in2_input Measured voltage on VMON (ZL2004) or VDRV (ZL9101M,
216 ZL9117M) pin. Reported voltage is 16x the voltage on the
217 pin (adjusted internally by the chip).
218 in2_lcrit Critical minimum VMON/VDRV Voltage.
219 in2_crit Critical maximum VMON/VDRV voltage.
220 in2_lcrit_alarm VMON/VDRV voltage critical low alarm.
221 in2_crit_alarm VMON/VDRV voltage critical high alarm.
223 vmon attributes are supported on ZL2004, ZL8802,
224 ZL9101M, ZL9117M and ZLS4009 only.
227 inX_input Measured output voltage.
228 inX_lcrit Critical minimum output Voltage.
229 inX_crit Critical maximum output voltage.
230 inX_lcrit_alarm Critical output voltage critical low alarm.
231 inX_crit_alarm Critical output voltage critical high alarm.
233 X is 3 for ZL2004, ZL9101M, and ZL9117M,
234 3, 4 for ZL8802 and 2 otherwise.
237 curr1_input Measured input current.
239 iin attributes are supported on ZL8802 only
241 currY_label "iout[12]"
242 currY_input Measured output current.
243 currY_lcrit Critical minimum output current.
244 currY_crit Critical maximum output current.
245 currY_lcrit_alarm Output current critical low alarm.
246 currY_crit_alarm Output current critical high alarm.
248 Y is 2, 3 for ZL8802, 1 otherwise
250 temp[12]_input Measured temperature.
251 temp[12]_min Minimum temperature.
252 temp[12]_max Maximum temperature.
253 temp[12]_lcrit Critical low temperature.
254 temp[12]_crit Critical high temperature.
255 temp[12]_min_alarm Chip temperature low alarm.
256 temp[12]_max_alarm Chip temperature high alarm.
257 temp[12]_lcrit_alarm Chip temperature critical low alarm.
258 temp[12]_crit_alarm Chip temperature critical high alarm.
259 ======================= ========================================================