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authorGuenter Roeck <linux@roeck-us.net>2012-03-07 03:54:50 -0800
committerGuenter Roeck <linux@roeck-us.net>2013-02-06 09:58:05 -0800
commit1640eaecc4c5f62c73a87445a55c0f0cbe3b4579 (patch)
treeaf5b6caaae370863cbd0efa191be7307a4f67b4d /Documentation/hwmon
parentce603b18f30aea1216a00673a33805d4f5a5e16b (diff)
downloadop-kernel-dev-1640eaecc4c5f62c73a87445a55c0f0cbe3b4579.zip
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hwmon: (pmbus/zl6100) Add support for VMON/VDRV
Some of the ZL6100 compatible chips support monitoring a separate voltage pin, VMON (ZL2004) or VDRV (ZL91xx). Report it as in2 / vmon. The chips support implicit warning limits for VMON/VDRV, as percentage of the respective critical voltage. Support by reading/writing the critical voltages and calculating the associated warning voltages. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
-rw-r--r--Documentation/hwmon/zl610026
1 files changed, 20 insertions, 6 deletions
diff --git a/Documentation/hwmon/zl6100 b/Documentation/hwmon/zl6100
index a995b41..3d924b6 100644
--- a/Documentation/hwmon/zl6100
+++ b/Documentation/hwmon/zl6100
@@ -121,12 +121,26 @@ in1_max_alarm Input voltage high alarm.
in1_lcrit_alarm Input voltage critical low alarm.
in1_crit_alarm Input voltage critical high alarm.
-in2_label "vout1"
-in2_input Measured output voltage.
-in2_lcrit Critical minimum output Voltage.
-in2_crit Critical maximum output voltage.
-in2_lcrit_alarm Critical output voltage critical low alarm.
-in2_crit_alarm Critical output voltage critical high alarm.
+in2_label "vmon"
+in2_input Measured voltage on VMON (ZL2004) or VDRV (ZL9101M,
+ ZL9117M) pin. Reported voltage is 16x the voltage on the
+ pin (adjusted internally by the chip).
+in2_lcrit Critical minumum VMON/VDRV Voltage.
+in2_crit Critical maximum VMON/VDRV voltage.
+in2_lcrit_alarm VMON/VDRV voltage critical low alarm.
+in2_crit_alarm VMON/VDRV voltage critical high alarm.
+
+ vmon attributes are supported on ZL2004, ZL9101M,
+ and ZL9117M only.
+
+inX_label "vout1"
+inX_input Measured output voltage.
+inX_lcrit Critical minimum output Voltage.
+inX_crit Critical maximum output voltage.
+inX_lcrit_alarm Critical output voltage critical low alarm.
+inX_crit_alarm Critical output voltage critical high alarm.
+
+ X is 3 for ZL2004, ZL9101M, and ZL9117M, 2 otherwise.
curr1_label "iout1"
curr1_input Measured output current.
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