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diff --git a/Documentation/hwmon/max16065.rst b/Documentation/hwmon/max16065.rst new file mode 100644 index 0000000000..45f69f334f --- /dev/null +++ b/Documentation/hwmon/max16065.rst @@ -0,0 +1,127 @@ +Kernel driver max16065 +====================== + + +Supported chips: + + * Maxim MAX16065, MAX16066 + + Prefixes: 'max16065', 'max16066' + + Addresses scanned: - + + Datasheet: + + http://datasheets.maxim-ic.com/en/ds/MAX16065-MAX16066.pdf + + * Maxim MAX16067 + + Prefix: 'max16067' + + Addresses scanned: - + + Datasheet: + + http://datasheets.maxim-ic.com/en/ds/MAX16067.pdf + + * Maxim MAX16068 + + Prefix: 'max16068' + + Addresses scanned: - + + Datasheet: + + http://datasheets.maxim-ic.com/en/ds/MAX16068.pdf + + * Maxim MAX16070/MAX16071 + + Prefixes: 'max16070', 'max16071' + + Addresses scanned: - + + Datasheet: + + http://datasheets.maxim-ic.com/en/ds/MAX16070-MAX16071.pdf + +Author: Guenter Roeck <linux@roeck-us.net> + + +Description +----------- + +[From datasheets] The MAX16065/MAX16066 flash-configurable system managers +monitor and sequence multiple system voltages. The MAX16065/MAX16066 can also +accurately monitor (+/-2.5%) one current channel using a dedicated high-side +current-sense amplifier. The MAX16065 manages up to twelve system voltages +simultaneously, and the MAX16066 manages up to eight supply voltages. + +The MAX16067 flash-configurable system manager monitors and sequences multiple +system voltages. The MAX16067 manages up to six system voltages simultaneously. + +The MAX16068 flash-configurable system manager monitors and manages up to six +system voltages simultaneously. + +The MAX16070/MAX16071 flash-configurable system monitors supervise multiple +system voltages. The MAX16070/MAX16071 can also accurately monitor (+/-2.5%) +one current channel using a dedicated high-side current-sense amplifier. The +MAX16070 monitors up to twelve system voltages simultaneously, and the MAX16071 +monitors up to eight supply voltages. + +Each monitored channel has its own low and high critical limits. MAX16065, +MAX16066, MAX16070, and MAX16071 support an additional limit which is +configurable as either low or high secondary limit. MAX16065, MAX16066, +MAX16070, and MAX16071 also support supply current monitoring. + + +Usage Notes +----------- + +This driver does not probe for devices, since there is no register which +can be safely used to identify the chip. You will have to instantiate +the devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for +details. + +WARNING: Do not access chip registers using the i2cdump command, and do not use +any of the i2ctools commands on a command register (0xa5 to 0xac). The chips +supported by this driver interpret any access to a command register (including +read commands) as request to execute the command in question. This may result in +power loss, board resets, and/or Flash corruption. Worst case, your board may +turn into a brick. + + +Sysfs entries +------------- + +======================= ======================================================== +in[0-11]_input Input voltage measurements. + +in12_input Voltage on CSP (Current Sense Positive) pin. + Only if the chip supports current sensing and if + current sensing is enabled. + +in[0-11]_min Low warning limit. + Supported on MAX16065, MAX16066, MAX16070, and MAX16071 + only. + +in[0-11]_max High warning limit. + Supported on MAX16065, MAX16066, MAX16070, and MAX16071 + only. + + Either low or high warning limits are supported + (depending on chip configuration), but not both. + +in[0-11]_lcrit Low critical limit. + +in[0-11]_crit High critical limit. + +in[0-11]_alarm Input voltage alarm. + +curr1_input Current sense input; only if the chip supports current + sensing and if current sensing is enabled. + Displayed current assumes 0.001 Ohm current sense + resistor. + +curr1_alarm Overcurrent alarm; only if the chip supports current + sensing and if current sensing is enabled. +======================= ======================================================== |