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+Kernel driver ltc2978
+=====================
+
+Supported chips:
+
+ * Linear Technology LTC2972
+
+ Prefix: 'ltc2972'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltc2972.html
+
+ * Linear Technology LTC2974
+
+ Prefix: 'ltc2974'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltc2974
+
+ * Linear Technology LTC2975
+
+ Prefix: 'ltc2975'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltc2975
+
+ * Linear Technology LTC2977
+
+ Prefix: 'ltc2977'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltc2977
+
+ * Linear Technology LTC2978, LTC2978A
+
+ Prefix: 'ltc2978'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltc2978
+
+ https://www.analog.com/en/products/ltc2978a
+
+ * Linear Technology LTC2979
+
+ Prefix: 'ltc2979'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltc2979
+
+ * Linear Technology LTC2980
+
+ Prefix: 'ltc2980'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltc2980
+
+ * Linear Technology LTC3880
+
+ Prefix: 'ltc3880'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltc3880
+
+ * Linear Technology LTC3882
+
+ Prefix: 'ltc3882'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltc3882
+
+ * Linear Technology LTC3883
+
+ Prefix: 'ltc3883'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltc3883
+
+ * Linear Technology LTC3884
+
+ Prefix: 'ltc3884'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltc3884
+
+ * Linear Technology LTC3886
+
+ Prefix: 'ltc3886'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltc3886
+
+ * Linear Technology LTC3887
+
+ Prefix: 'ltc3887'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltc3887
+
+ * Linear Technology LTC3889
+
+ Prefix: 'ltc3889'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltc3889
+
+ * Linear Technology LTC7880
+
+ Prefix: 'ltc7880'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltc7880
+
+ * Linear Technology LTM2987
+
+ Prefix: 'ltm2987'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltm2987
+
+ * Linear Technology LTM4644
+
+ Prefix: 'ltm4644'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltm4644
+
+ * Linear Technology LTM4675
+
+ Prefix: 'ltm4675'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltm4675
+
+ * Linear Technology LTM4676
+
+ Prefix: 'ltm4676'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltm4676
+
+ * Linear Technology LTM4677
+
+ Prefix: 'ltm4677'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltm4677
+
+ * Linear Technology LTM4678
+
+ Prefix: 'ltm4678'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/ltm4678
+
+ * Analog Devices LTM4680
+
+ Prefix: 'ltm4680'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/ltm4680
+
+ * Analog Devices LTM4686
+
+ Prefix: 'ltm4686'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/ltm4686
+
+ * Analog Devices LTM4700
+
+ Prefix: 'ltm4700'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/ltm4700
+
+
+
+Author: Guenter Roeck <linux@roeck-us.net>
+
+
+Description
+-----------
+
+- LTC2974 and LTC2975 are quad digital power supply managers.
+- LTC2978 is an octal power supply monitor.
+- LTC2977 is a pin compatible replacement for LTC2978.
+- LTC2980 is a 16-channel Power System Manager, consisting of two LTC2977
+- in a single die. The chip is instantiated and reported as two separate chips
+- on two different I2C bus addresses.
+- LTC3880, LTC3882, LTC3886, and LTC3887 are dual output poly-phase step-down
+- DC/DC controllers.
+- LTC3883 is a single phase step-down DC/DC controller.
+- LTM2987 is a 16-channel Power System Manager with two LTC2977 plus
+- additional components on a single die. The chip is instantiated and reported
+- as two separate chips on two different I2C bus addresses.
+- LTM4675 is a dual 9A or single 18A μModule regulator
+- LTM4676 is a dual 13A or single 26A uModule regulator.
+- LTM4686 is a dual 10A or single 20A uModule regulator.
+
+
+Usage Notes
+-----------
+
+This driver does not probe for PMBus devices. You will have to instantiate
+devices explicitly.
+
+Example: the following commands will load the driver for an LTC2978 at address
+0x60 on I2C bus #1::
+
+ # modprobe ltc2978
+ # echo ltc2978 0x60 > /sys/bus/i2c/devices/i2c-1/new_device
+
+
+Sysfs attributes
+----------------
+
+======================= ========================================================
+in1_label "vin"
+
+in1_input Measured input voltage.
+
+in1_min Minimum input voltage.
+
+in1_max Maximum input voltage.
+
+ LTC2974, LTC2975, LTC2977, LTC2980, LTC2978,
+ LTC2979 and LTM2987 only.
+
+in1_lcrit Critical minimum input voltage.
+
+ LTC2972, LTC2974, LTC2975, LTC2977, LTC2980, LTC2978,
+ LTC2979 and LTM2987 only.
+
+in1_crit Critical maximum input voltage.
+
+in1_min_alarm Input voltage low alarm.
+
+in1_max_alarm Input voltage high alarm.
+
+ LTC2972, LTC2974, LTC2975, LTC2977, LTC2980, LTC2978,
+ LTC2979 and LTM2987 only.
+
+in1_lcrit_alarm Input voltage critical low alarm.
+
+ LTC2972, LTC2974, LTC2975, LTC2977, LTC2980, LTC2978,
+ LTC2979 and LTM2987 only.
+
+in1_crit_alarm Input voltage critical high alarm.
+
+in1_lowest Lowest input voltage.
+
+ LTC2972, LTC2974, LTC2975, LTC2977, LTC2980, LTC2978,
+ and LTM2987 only.
+
+in1_highest Highest input voltage.
+
+in1_reset_history Reset input voltage history.
+
+in[N]_label "vout[1-8]".
+
+ - LTC2972: N=2-3
+ - LTC2974, LTC2975: N=2-5
+ - LTC2977, LTC2979, LTC2980, LTM2987: N=2-9
+ - LTC2978: N=2-9
+ - LTC3880, LTC3882, LTC3884, LTC23886 LTC3887, LTC3889,
+ LTC7880, LTM4644, LTM4675, LTM4676, LTM4677, LTM4678,
+ LTM4680, LTM4700: N=2-3
+ - LTC3883: N=2
+
+in[N]_input Measured output voltage.
+
+in[N]_min Minimum output voltage.
+
+in[N]_max Maximum output voltage.
+
+in[N]_lcrit Critical minimum output voltage.
+
+in[N]_crit Critical maximum output voltage.
+
+in[N]_min_alarm Output voltage low alarm.
+
+in[N]_max_alarm Output voltage high alarm.
+
+in[N]_lcrit_alarm Output voltage critical low alarm.
+
+in[N]_crit_alarm Output voltage critical high alarm.
+
+in[N]_lowest Lowest output voltage.
+
+ LTC2972, LTC2974, LTC2975,and LTC2978 only.
+
+in[N]_highest Highest output voltage.
+
+in[N]_reset_history Reset output voltage history.
+
+temp[N]_input Measured temperature.
+
+ - On LTC2972, temp[1-2] report external temperatures,
+ and temp 3 reports the chip temperature.
+ - On LTC2974 and LTC2975, temp[1-4] report external
+ temperatures, and temp5 reports the chip temperature.
+ - On LTC2977, LTC2979, LTC2980, LTC2978, and LTM2987,
+ only one temperature measurement is supported and
+ reports the chip temperature.
+ - On LTC3880, LTC3882, LTC3886, LTC3887, LTC3889,
+ LTM4664, LTM4675, LTM4676, LTM4677, LTM4678, LTM4680,
+ and LTM4700, temp1 and temp2 report external
+ temperatures, and temp3 reports the chip temperature.
+ - On LTC3883, temp1 reports an external temperature,
+ and temp2 reports the chip temperature.
+
+temp[N]_min Mimimum temperature.
+
+ LTC2972, LTC2974, LCT2977, LTM2980, LTC2978,
+ LTC2979, and LTM2987 only.
+
+temp[N]_max Maximum temperature.
+
+temp[N]_lcrit Critical low temperature.
+
+temp[N]_crit Critical high temperature.
+
+temp[N]_min_alarm Temperature low alarm.
+
+ LTC2972, LTC2974, LTC2975, LTC2977, LTM2980, LTC2978,
+ LTC2979, and LTM2987 only.
+
+temp[N]_max_alarm Temperature high alarm.
+
+
+temp[N]_lcrit_alarm Temperature critical low alarm.
+
+temp[N]_crit_alarm Temperature critical high alarm.
+
+temp[N]_lowest Lowest measured temperature.
+
+ - LTC2972, LTC2974, LTC2975, LTC2977, LTM2980, LTC2978,
+ LTC2979, and LTM2987 only.
+ - Not supported for chip temperature sensor on LTC2974
+ and LTC2975.
+
+temp[N]_highest Highest measured temperature.
+
+ Not supported for chip temperature sensor on
+ LTC2974 and LTC2975.
+
+temp[N]_reset_history Reset temperature history.
+
+ Not supported for chip temperature sensor on
+ LTC2974 and LTC2975.
+
+power1_label "pin". LTC3883 and LTC3886 only.
+
+power1_input Measured input power.
+
+power[N]_label "pout[1-4]".
+
+ - LTC2972: N=1-2
+ - LTC2974, LTC2975: N=1-4
+ - LTC2977, LTC2979, LTC2980, LTM2987: Not supported
+ - LTC2978: Not supported
+ - LTC3880, LTC3882, LTC3884, LTC3886, LTC3887, LTC3889,
+ LTM4664, LTM4675, LTM4676, LTM4677, LTM4678, LTM4680,
+ LTM4700: N=1-2
+ - LTC3883: N=2
+
+power[N]_input Measured output power.
+
+curr1_label "iin".
+
+ LTC3880, LTC3883, LTC3884, LTC3886, LTC3887, LTC3889,
+ LTM4644, LTM4675, LTM4676, LTM4677, LTM4678, LTM4680,
+ and LTM4700 only.
+
+curr1_input Measured input current.
+
+curr1_max Maximum input current.
+
+curr1_max_alarm Input current high alarm.
+
+curr1_highest Highest input current.
+
+ LTC3883 and LTC3886 only.
+
+curr1_reset_history Reset input current history.
+
+ LTC3883 and LTC3886 only.
+
+curr[N]_label "iout[1-4]".
+
+ - LTC2972: N-1-2
+ - LTC2974, LTC2975: N=1-4
+ - LTC2977, LTC2979, LTC2980, LTM2987: not supported
+ - LTC2978: not supported
+ - LTC3880, LTC3882, LTC3884, LTC3886, LTC3887, LTC3889,
+ LTM4664, LTM4675, LTM4676, LTM4677, LTM4678, LTM4680,
+ LTM4700: N=2-3
+ - LTC3883: N=2
+
+curr[N]_input Measured output current.
+
+curr[N]_max Maximum output current.
+
+curr[N]_crit Critical high output current.
+
+curr[N]_lcrit Critical low output current.
+
+ LTC2972, LTC2974 and LTC2975 only.
+
+curr[N]_max_alarm Output current high alarm.
+
+curr[N]_crit_alarm Output current critical high alarm.
+
+curr[N]_lcrit_alarm Output current critical low alarm.
+
+ LTC2972, LTC2974 and LTC2975 only.
+
+curr[N]_lowest Lowest output current.
+
+ LTC2972, LTC2974 and LTC2975 only.
+
+curr[N]_highest Highest output current.
+
+curr[N]_reset_history Reset output current history.
+======================= ========================================================
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