power_supply: add few more values and props

Add LiMn (one of the most common for small non-rechargable batteries)
battery technology and voltage_min/_max properties support.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Anton Vorontsov <cbou@mail.ru>

3 files changed, 11 insertions, 1 deletions

diff --git a/Documentation/power_supply_class.txt b/Documentation/power_supply_class.txt
index a032c316b3bc..a8686e5a6857 100644
--- a/Documentation/power_supply_class.txt
+++ b/Documentation/power_supply_class.txt
@@ -87,6 +87,10 @@ batteries use voltage for very approximated calculation of capacity.
 Battery driver also can use this attribute just to inform userspace
 about maximal and minimal voltage thresholds of a given battery.
 
+VOLTAGE_MAX, VOLTAGE_MIN - same as _DESIGN voltage values except that
+these ones should be used if hardware could only guess (measure and
+retain) the thresholds of a given power supply.
+
 CHARGE_FULL_DESIGN, CHARGE_EMPTY_DESIGN - design charge values, when
 battery considered full/empty.
 
diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
index bab591ba785a..d4824840c5bf 100644
--- a/drivers/power/power_supply_sysfs.c
+++ b/drivers/power/power_supply_sysfs.c
@@ -48,7 +48,8 @@ static ssize_t power_supply_show_property(struct device *dev,
                 "Unspecified failure"
         };
         static char *technology_text[] = {
-                "Unknown", "NiMH", "Li-ion", "Li-poly", "LiFe", "NiCd"
+                "Unknown", "NiMH", "Li-ion", "Li-poly", "LiFe", "NiCd",
+                "LiMn"
         };
         ssize_t ret;
         struct power_supply *psy = dev_get_drvdata(dev);
@@ -84,6 +85,8 @@ static struct device_attribute power_supply_attrs[] = {
         POWER_SUPPLY_ATTR(present),
         POWER_SUPPLY_ATTR(online),
         POWER_SUPPLY_ATTR(technology),
+        POWER_SUPPLY_ATTR(voltage_max),
+        POWER_SUPPLY_ATTR(voltage_min),
         POWER_SUPPLY_ATTR(voltage_max_design),
         POWER_SUPPLY_ATTR(voltage_min_design),
         POWER_SUPPLY_ATTR(voltage_now),
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 358b38d09fe0..5cbf3e371012 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -54,6 +54,7 @@ enum {
         POWER_SUPPLY_TECHNOLOGY_LIPO,
         POWER_SUPPLY_TECHNOLOGY_LiFe,
         POWER_SUPPLY_TECHNOLOGY_NiCd,
+        POWER_SUPPLY_TECHNOLOGY_LiMn,
 };
 
 enum power_supply_property {
@@ -63,6 +64,8 @@ enum power_supply_property {
         POWER_SUPPLY_PROP_PRESENT,
         POWER_SUPPLY_PROP_ONLINE,
         POWER_SUPPLY_PROP_TECHNOLOGY,
+        POWER_SUPPLY_PROP_VOLTAGE_MAX,
+        POWER_SUPPLY_PROP_VOLTAGE_MIN,
         POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
         POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
         POWER_SUPPLY_PROP_VOLTAGE_NOW,