power_supply: get_by_name and set_charged functionality

This adds a function that indicates that a battery is fully charged.
It also includes functions to get a power_supply device from the class
of registered devices by name reference. These can be used to find a
specific battery to call power_supply_set_battery_charged() on.

Some battery drivers might need this information to calibrate
themselves.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Ian Molton <spyro@f2s.com>
Cc: Anton Vorontsov <cbou@mail.ru>
Cc: Matt Reimer <mreimer@vpop.net>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 4c7c6fc35487..b5d096d3a9be 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -144,6 +144,7 @@ struct power_supply {
                             enum power_supply_property psp,
                             union power_supply_propval *val);
         void (*external_power_changed)(struct power_supply *psy);
+        void (*set_charged)(struct power_supply *psy);
 
         /* For APM emulation, think legacy userspace. */
         int use_for_apm;
@@ -183,8 +184,10 @@ struct power_supply_info {
         int use_for_apm;
 };
 
+extern struct power_supply *power_supply_get_by_name(char *name);
 extern void power_supply_changed(struct power_supply *psy);
 extern int power_supply_am_i_supplied(struct power_supply *psy);
+extern int power_supply_set_battery_charged(struct power_supply *psy);
 
 #if defined(CONFIG_POWER_SUPPLY) || defined(CONFIG_POWER_SUPPLY_MODULE)
 extern int power_supply_is_system_supplied(void);