diff options
author | Daniel Mack <daniel@caiaq.de> | 2009-07-23 20:35:53 +0200 |
---|---|---|
committer | Anton Vorontsov <cbouatmailru@gmail.com> | 2009-07-30 17:49:15 +0400 |
commit | e5f5ccb646bc6009572b5c23201b5e81638ff150 (patch) | |
tree | e0f132871a46d76b98cdaa505f80a2f0e500ff6b /drivers/power/power_supply_core.c | |
parent | ff3417e7effe57cc002a8882a48bcb8e1a7e7267 (diff) | |
download | linux-e5f5ccb646bc6009572b5c23201b5e81638ff150.tar.gz linux-e5f5ccb646bc6009572b5c23201b5e81638ff150.tar.bz2 linux-e5f5ccb646bc6009572b5c23201b5e81638ff150.zip |
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>
Diffstat (limited to 'drivers/power/power_supply_core.c')
-rw-r--r-- | drivers/power/power_supply_core.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c index 12cd6e36ff1d..cce75b40b435 100644 --- a/drivers/power/power_supply_core.c +++ b/drivers/power/power_supply_core.c @@ -116,6 +116,34 @@ int power_supply_is_system_supplied(void) } EXPORT_SYMBOL_GPL(power_supply_is_system_supplied); +int power_supply_set_battery_charged(struct power_supply *psy) +{ + if (psy->type == POWER_SUPPLY_TYPE_BATTERY && psy->set_charged) { + psy->set_charged(psy); + return 0; + } + + return -EINVAL; +} +EXPORT_SYMBOL_GPL(power_supply_set_battery_charged); + +static int power_supply_match_device_by_name(struct device *dev, void *data) +{ + const char *name = data; + struct power_supply *psy = dev_get_drvdata(dev); + + return strcmp(psy->name, name) == 0; +} + +struct power_supply *power_supply_get_by_name(char *name) +{ + struct device *dev = class_find_device(power_supply_class, NULL, name, + power_supply_match_device_by_name); + + return dev ? dev_get_drvdata(dev) : NULL; +} +EXPORT_SYMBOL_GPL(power_supply_get_by_name); + int power_supply_register(struct device *parent, struct power_supply *psy) { int rc = 0; |