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hwmon: (pmbus/adm1275) Add support for second current limit

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ADM1275 supports a second current limit, which can be configured as either lower
or upper limit. Add support for it and report it as either lower or upper
critical current limit.

Also replace error return code EINVAL for unsupported pages with ENXIO as this
is more appropriate for the observed condition.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Guenter Roeck
2011-08-02 11:08:57 -07:00
parent 866cf12a0e
commit c5e6763667
2 changed files with 96 additions and 7 deletions
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Documentation/hwmon/adm1275
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@@ -60,5 +60,13 @@ curr1_label "iout1"
curr1_input Measured current. From READ_IOUT register.
curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register.
curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT register.
curr1_lcrit Critical minimum current. Depending on the chip
configuration, either curr1_lcrit or curr1_crit is
supported, but not both.
curr1_lcrit_alarm Critical current low alarm.
curr1_crit Critical maximum current. Depending on the chip
configuration, either curr1_lcrit or curr1_crit is
supported, but not both.
curr1_crit_alarm Critical current high alarm.
curr1_highest Historical maximum current.
curr1_reset_history Write any value to reset history.