power_supply: Add new power supply AUTHENTIC property

It is possible that users can use non-standard chargers or use invalid batteries especially with mobile devices. This patch adds a new power supply property called 'AUTHENTIC' to indicate this to the user(user space). Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
SchmErik · Aug 23, 2012 · b1b5687 · b1b5687
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diff --git a/Documentation/power/power_supply_class.txt b/Documentation/power/power_supply_class.txt
@@ -81,6 +81,9 @@ This defines trickle and fast charges.  For batteries that
 are already charged or discharging, 'n/a' can be displayed (or
 'unknown', if the status is not known).
 
+AUTHENTIC - indicates the power supply (battery or charger) connected
+to the platform is authentic(1) or non authentic(0).
+
 HEALTH - represents health of the battery, values corresponds to
 POWER_SUPPLY_HEALTH_*, defined in battery.h.
 

diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
@@ -138,6 +138,7 @@ static struct device_attribute power_supply_attrs[] = {
 	POWER_SUPPLY_ATTR(health),
 	POWER_SUPPLY_ATTR(present),
 	POWER_SUPPLY_ATTR(online),
+	POWER_SUPPLY_ATTR(authentic),
 	POWER_SUPPLY_ATTR(technology),
 	POWER_SUPPLY_ATTR(cycle_count),
 	POWER_SUPPLY_ATTR(voltage_max),

diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
@@ -88,6 +88,7 @@ enum power_supply_property {
 	POWER_SUPPLY_PROP_HEALTH,
 	POWER_SUPPLY_PROP_PRESENT,
 	POWER_SUPPLY_PROP_ONLINE,
+	POWER_SUPPLY_PROP_AUTHENTIC,
 	POWER_SUPPLY_PROP_TECHNOLOGY,
 	POWER_SUPPLY_PROP_CYCLE_COUNT,
 	POWER_SUPPLY_PROP_VOLTAGE_MAX,