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>
diff --git a/drivers/power/pcf50633-charger.c b/drivers/power/pcf50633-charger.c
index e8b278f..48e92c0 100644
--- a/drivers/power/pcf50633-charger.c
+++ b/drivers/power/pcf50633-charger.c
@@ -36,6 +36,7 @@
struct power_supply usb;
struct power_supply adapter;
+ struct power_supply ac;
struct delayed_work charging_restart_work;
};
@@ -237,6 +238,7 @@
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 @@
{
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 @@
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 @@
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 @@
power_supply_unregister(&mbc->usb);
power_supply_unregister(&mbc->adapter);
+ power_supply_unregister(&mbc->ac);
cancel_delayed_work_sync(&mbc->charging_restart_work);