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pcf50633: Add ac power supply class to the charger 

This adds an appropriate ac power_supply class and shows usb only when
at the appropriate current limit.

Signed-off-by: Sean McNeil <sean@mcneil.com>
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
This commit is contained in:
Sean McNeil 2009-11-05 00:24:54 +03:00 committed by Anton Vorontsov
parent c26964ead5
commit 7677f33f0a
1 changed files with 45 additions and 1 deletions
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46
drivers/power/pcf50633-charger.c
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@ -36,6 +36,7 @@ struct pcf50633_mbc {
struct power_supply usb;
struct power_supply adapter;
struct power_supply ac;
struct delayed_work charging_restart_work;
};
@ -237,6 +238,7 @@ pcf50633_mbc_irq_handler(int irq, void *data)
else if (irq == PCF50633_IRQ_USBLIMOFF)
mbc->usb_active = 1;
power_supply_changed(&mbc->ac);
power_supply_changed(&mbc->usb);
power_supply_changed(&mbc->adapter);
@ -269,10 +271,34 @@ static int usb_get_property(struct power_supply *psy,
{
struct pcf50633_mbc *mbc = container_of(psy, struct pcf50633_mbc, usb);
int ret = 0;
u8 usblim = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCC7) &
PCF50633_MBCC7_USB_MASK;
switch (psp) {
case POWER_SUPPLY_PROP_ONLINE:
val->intval = mbc->usb_online;
val->intval = mbc->usb_online &&
(usblim <= PCF50633_MBCC7_USB_500mA);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int ac_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct pcf50633_mbc *mbc = container_of(psy, struct pcf50633_mbc, ac);
int ret = 0;
u8 usblim = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCC7) &
PCF50633_MBCC7_USB_MASK;
switch (psp) {
case POWER_SUPPLY_PROP_ONLINE:
val->intval = mbc->usb_online &&
(usblim == PCF50633_MBCC7_USB_1000mA);
break;
default:
ret = -EINVAL;
@ -337,6 +363,14 @@ static int __devinit pcf50633_mbc_probe(struct platform_device *pdev)
mbc->usb.supplied_to = mbc->pcf->pdata->batteries;
mbc->usb.num_supplicants = mbc->pcf->pdata->num_batteries;
mbc->ac.name = "ac";
mbc->ac.type = POWER_SUPPLY_TYPE_MAINS;
mbc->ac.properties = power_props;
mbc->ac.num_properties = ARRAY_SIZE(power_props);
mbc->ac.get_property = ac_get_property;
mbc->ac.supplied_to = mbc->pcf->pdata->batteries;
mbc->ac.num_supplicants = mbc->pcf->pdata->num_batteries;
ret = power_supply_register(&pdev->dev, &mbc->adapter);
if (ret) {
dev_err(mbc->pcf->dev, "failed to register adapter\n");
@ -352,6 +386,15 @@ static int __devinit pcf50633_mbc_probe(struct platform_device *pdev)
return ret;
}
ret = power_supply_register(&pdev->dev, &mbc->ac);
if (ret) {
dev_err(mbc->pcf->dev, "failed to register ac\n");
power_supply_unregister(&mbc->adapter);
power_supply_unregister(&mbc->usb);
kfree(mbc);
return ret;
}
INIT_DELAYED_WORK(&mbc->charging_restart_work,
pcf50633_mbc_charging_restart);
@ -379,6 +422,7 @@ static int __devexit pcf50633_mbc_remove(struct platform_device *pdev)
power_supply_unregister(&mbc->usb);
power_supply_unregister(&mbc->adapter);
power_supply_unregister(&mbc->ac);
cancel_delayed_work_sync(&mbc->charging_restart_work);