diff options
| author | Guenter Roeck <guenter.roeck@ericsson.com> | 2011-09-11 20:31:09 -0700 |
|---|---|---|
| committer | Guenter Roeck <guenter.roeck@ericsson.com> | 2011-10-24 11:09:43 -0700 |
| commit | ddfb41ca2a33c9f5053126324597510974724a1f (patch) | |
| tree | d9f13049c8532cc5b0050de61c0ad5d90d6af5fe /Documentation/hwmon | |
| parent | c3ff9a674c2313d4f28e38d384b18b561b313eb7 (diff) | |
hwmon: (pmbus/ltc2978) Add support for LTC3880 to LTC2978 driver
The LTC3880 PMBus command set is comparable to LTC2978. Add support for it
to the LTC2978 driver.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
Diffstat (limited to 'Documentation/hwmon')
| -rw-r--r-- | Documentation/hwmon/ltc2978 | 57 |
1 files changed, 41 insertions, 16 deletions
diff --git a/Documentation/hwmon/ltc2978 b/Documentation/hwmon/ltc2978 index 499129e1189..c365f9beb5d 100644 --- a/Documentation/hwmon/ltc2978 +++ b/Documentation/hwmon/ltc2978 @@ -6,6 +6,10 @@ Supported chips: Prefix: 'ltc2978' Addresses scanned: - Datasheet: http://cds.linear.com/docs/Datasheet/2978fa.pdf + * Linear Technology LTC3880 + Prefix: 'ltc3880' + Addresses scanned: - + Datasheet: http://cds.linear.com/docs/Datasheet/3880f.pdf Author: Guenter Roeck <guenter.roeck@ericsson.com> @@ -14,7 +18,8 @@ Description ----------- The LTC2978 is an octal power supply monitor, supervisor, sequencer and -margin controller. +margin controller. The LTC3880 is a dual, PolyPhase DC/DC synchronous +step-down switching regulator controller. Usage Notes @@ -43,12 +48,12 @@ in1_min_alarm Input voltage low alarm. in1_max_alarm Input voltage high alarm. in1_lcrit_alarm Input voltage critical low alarm. in1_crit_alarm Input voltage critical high alarm. -in1_lowest Lowest input voltage. +in1_lowest Lowest input voltage. LTC2978 only. in1_highest Highest input voltage. in1_reset_history Reset history. Writing into this attribute will reset history for all attributes. -in[2-9]_label "vout[1-8]". +in[2-9]_label "vout[1-8]". Channels 3 to 9 on LTC2978 only. in[2-9]_input Measured output voltage. in[2-9]_min Minimum output voltage. in[2-9]_max Maximum output voltage. @@ -58,21 +63,41 @@ in[2-9]_min_alarm Output voltage low alarm. in[2-9]_max_alarm Output voltage high alarm. in[2-9]_lcrit_alarm Output voltage critical low alarm. in[2-9]_crit_alarm Output voltage critical high alarm. -in[2-9]_lowest Lowest output voltage. +in[2-9]_lowest Lowest output voltage. LTC2978 only. in[2-9]_highest Lowest output voltage. in[2-9]_reset_history Reset history. Writing into this attribute will reset history for all attributes. -temp1_input Measured temperature. -temp1_min Mimimum temperature. -temp1_max Maximum temperature. -temp1_lcrit Critical low temperature. -temp1_crit Critical high temperature. -temp1_min_alarm Chip temperature low alarm. -temp1_max_alarm Chip temperature high alarm. -temp1_lcrit_alarm Chip temperature critical low alarm. -temp1_crit_alarm Chip temperature critical high alarm. -temp1_lowest Lowest measured temperature. -temp1_highest Highest measured temperature. -temp1_reset_history Reset history. Writing into this attribute will reset +temp[1-3]_input Measured temperature. + On LTC2978, only one temperature measurement is + supported and reflects the internal temperature. + On LTC3880, temp1 and temp2 report external + temperatures, and temp3 reports the internal + temperature. +temp[1-3]_min Mimimum temperature. +temp[1-3]_max Maximum temperature. +temp[1-3]_lcrit Critical low temperature. +temp[1-3]_crit Critical high temperature. +temp[1-3]_min_alarm Chip temperature low alarm. +temp[1-3]_max_alarm Chip temperature high alarm. +temp[1-3]_lcrit_alarm Chip temperature critical low alarm. +temp[1-3]_crit_alarm Chip temperature critical high alarm. +temp[1-3]_lowest Lowest measured temperature. LTC2978 only. +temp[1-3]_highest Highest measured temperature. +temp[1-3]_reset_history Reset history. Writing into this attribute will reset history for all attributes. + +power[1-2]_label "pout[1-2]". LTC3880 only. +power[1-2]_input Measured power. + +curr1_label "iin". LTC3880 only. +curr1_input Measured input current. +curr1_max Maximum input current. +curr1_max_alarm Input current high alarm. + +curr[2-3]_label "iout[1-2]". LTC3880 only. +curr[2-3]_input Measured input current. +curr[2-3]_max Maximum input current. +curr[2-3]_crit Critical input current. +curr[2-3]_max_alarm Input current high alarm. +curr[2-3]_crit_alarm Input current critical high alarm. |