hwmon: (ltc2978) Add support for LTC2975
LTC2975 is mostly compatible to LTC2974, but supports input current and power measurement. Tested-by: Michael Jones <mike@proclivis.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck
+27
-20
@@ -6,6 +6,10 @@ Supported chips:
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Prefix: 'ltc2974'
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Addresses scanned: -
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Datasheet: http://www.linear.com/product/ltc2974
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* Linear Technology LTC2975
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Prefix: 'ltc2975'
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Addresses scanned: -
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Datasheet: http://www.linear.com/product/ltc2975
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* Linear Technology LTC2977
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Prefix: 'ltc2977'
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Addresses scanned: -
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@@ -42,7 +46,7 @@ Author: Guenter Roeck <linux@roeck-us.net>
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Description
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-----------
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LTC2974 is a quad digital power supply managers.
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LTC2974 and LTC2975 are quad digital power supply managers.
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LTC2978 is an octal power supply monitor.
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LTC2977 is a pin compatible replacement for LTC2978.
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LTC3880, LTC3882, and LTC3887 are dual output poly-phase step-down DC/DC
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@@ -71,23 +75,23 @@ in1_label "vin"
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in1_input Measured input voltage.
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in1_min Minimum input voltage.
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in1_max Maximum input voltage.
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LTC2974, LTC2977, and LTC2978 only.
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LTC2974, LTC2975, LTC2977, and LTC2978 only.
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in1_lcrit Critical minimum input voltage.
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LTC2974, LTC2977, and LTC2978 only.
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LTC2974, LTC2975, LTC2977, and LTC2978 only.
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in1_crit Critical maximum input voltage.
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in1_min_alarm Input voltage low alarm.
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in1_max_alarm Input voltage high alarm.
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LTC2974, LTC2977, and LTC2978 only.
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LTC2974, LTC2975, LTC2977, and LTC2978 only.
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in1_lcrit_alarm Input voltage critical low alarm.
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LTC2974, LTC2977, and LTC2978 only.
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LTC2974, LTC2975, LTC2977, and LTC2978 only.
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in1_crit_alarm Input voltage critical high alarm.
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in1_lowest Lowest input voltage.
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LTC2974, LTC2977, and LTC2978 only.
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LTC2974, LTC2975, LTC2977, and LTC2978 only.
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in1_highest Highest input voltage.
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in1_reset_history Reset input voltage history.
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in[N]_label "vout[1-8]".
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LTC2974: N=2-5
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LTC2974, LTC2975: N=2-5
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LTC2977: N=2-9
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LTC2978: N=2-9
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LTC3880, LTC3882, LTC3887, LTM4676: N=2-3
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@@ -101,13 +105,14 @@ in[N]_min_alarm Output voltage low alarm.
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in[N]_max_alarm Output voltage high alarm.
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in[N]_lcrit_alarm Output voltage critical low alarm.
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in[N]_crit_alarm Output voltage critical high alarm.
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in[N]_lowest Lowest output voltage. LTC2974 and LTC2978 only.
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in[N]_lowest Lowest output voltage. LTC2974, LTC2975,
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and LTC2978 only.
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in[N]_highest Highest output voltage.
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in[N]_reset_history Reset output voltage history.
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temp[N]_input Measured temperature.
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On LTC2974, temp[1-4] report external temperatures,
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and temp5 reports the chip temperature.
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On LTC2974 and LTC2975, temp[1-4] report external
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temperatures, and temp5 reports the chip temperature.
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On LTC2977 and LTC2978, only one temperature measurement
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is supported and reports the chip temperature.
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On LTC3880, LTC3882, LTC3887, and LTM4676, temp1 and
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@@ -120,23 +125,24 @@ temp[N]_max Maximum temperature.
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temp[N]_lcrit Critical low temperature.
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temp[N]_crit Critical high temperature.
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temp[N]_min_alarm Temperature low alarm.
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LTC2974, LTC2977, and LTC2978 only.
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LTC2974, LTC2975, LTC2977, and LTC2978 only.
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temp[N]_max_alarm Temperature high alarm.
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temp[N]_lcrit_alarm Temperature critical low alarm.
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temp[N]_crit_alarm Temperature critical high alarm.
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temp[N]_lowest Lowest measured temperature.
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LTC2974, LTC2977, and LTC2978 only.
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Not supported for chip temperature sensor on LTC2974.
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LTC2974, LTC2975, LTC2977, and LTC2978 only.
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Not supported for chip temperature sensor on LTC2974 and
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LTC2975.
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temp[N]_highest Highest measured temperature. Not supported for chip
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temperature sensor on LTC2974.
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temperature sensor on LTC2974 and LTC2975.
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temp[N]_reset_history Reset temperature history. Not supported for chip
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temperature sensor on LTC2974.
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temperature sensor on LTC2974 and LTC2975.
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power1_label "pin". LTC3883 only.
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power1_input Measured input power.
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power[N]_label "pout[1-4]".
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LTC2974: N=1-4
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LTC2974, LTC2975: N=1-4
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LTC2977: Not supported
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LTC2978: Not supported
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LTC3880, LTC3882, LTC3887, LTM4676: N=1-2
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@@ -151,7 +157,7 @@ curr1_highest Highest input current. LTC3883 only.
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curr1_reset_history Reset input current history. LTC3883 only.
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curr[N]_label "iout[1-4]".
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LTC2974: N=1-4
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LTC2974, LTC2975: N=1-4
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LTC2977: not supported
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LTC2978: not supported
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LTC3880, LTC3882, LTC3887, LTM4676: N=2-3
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@@ -159,10 +165,11 @@ curr[N]_label "iout[1-4]".
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curr[N]_input Measured output current.
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curr[N]_max Maximum output current.
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curr[N]_crit Critical high output current.
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curr[N]_lcrit Critical low output current. LTC2974 only.
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curr[N]_lcrit Critical low output current. LTC2974 and LTC2975 only.
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curr[N]_max_alarm Output current high alarm.
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curr[N]_crit_alarm Output current critical high alarm.
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curr[N]_lcrit_alarm Output current critical low alarm. LTC2974 only.
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curr[N]_lowest Lowest output current. LTC2974 only.
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curr[N]_lcrit_alarm Output current critical low alarm.
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LTC2974 and LTC2975 only.
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curr[N]_lowest Lowest output current. LTC2974 and LTC2975 only.
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curr[N]_highest Highest output current.
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curr[N]_reset_history Reset output current history.
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