Messages in this thread | | | Date | Wed, 29 Jul 2009 11:29:48 +0100 | From | Ian molton <> | Subject | Re: [PATCH 1/2] power_supply: get_by_name and set_charged functionality |
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Daniel Mack wrote: > ping?
Looks ok. the only comment I have right now is that the comment doesnt quite match the patch - it suggests that the patch doesnt include the power_supply_set_battery_charged() function, when it does in fact.
> On Thu, Jul 23, 2009 at 08:35:53PM +0200, Daniel Mack wrote: >> This adds a function to get a power_supply device from the class of >> registered devices by name reference. It can be used to find a specific >> battery to call power_supply_set_battery_charged() on. >> >> Some battery drivers might need that 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> >> --- >> drivers/power/power_supply_core.c | 28 ++++++++++++++++++++++++++++ >> include/linux/power_supply.h | 3 +++ >> 2 files changed, 31 insertions(+), 0 deletions(-) >> >> diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c >> index 58f10ac..ddb4800 100644 >> --- a/drivers/power/power_supply_core.c >> +++ b/drivers/power/power_supply_core.c >> @@ -117,6 +117,34 @@ 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; >> diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h >> index 594c494..49f3296 100644 >> --- a/include/linux/power_supply.h >> +++ b/include/linux/power_supply.h >> @@ -126,6 +126,7 @@ 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; >> @@ -165,8 +166,10 @@ 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); >> -- >> 1.6.3.1 >> > >
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