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power: bq24617: Add support to report charging separately

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Just because the charger is present, doesn't mean that the battery is
being charged.  For example, the battery can be overheating, which
will prevent charging.

Change-Id: If5d8dc325fc6dc507808216f1e45a180d74b5d73
Signed-off-by: Greg Meiste <w30289@motorola.com>
This commit is contained in:
Greg Meiste
2010-09-07 11:20:39 -05:00
committed by Colin Cross
parent 17ab6bba46
commit ed28235171
1 changed files with 11 additions and 5 deletions
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16
drivers/power/bq24617_charger.c
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@@ -32,7 +32,8 @@ struct bq24617_data {
int ac_online;
};
static int bq24617_stat2_value;
static int bq24617_stat1_value = 1; /* 0 = charging in progress */
static int bq24617_stat2_value = 1; /* 0 = charge complete */
static char *bq24617_supply_list[] = {
"battery",
@@ -42,6 +43,11 @@ static enum power_supply_property bq24617_power_props[] = {
POWER_SUPPLY_PROP_ONLINE,
};
int is_ac_charging(void)
{
return (!bq24617_stat1_value || !bq24617_stat2_value);
}
int is_ac_charge_complete(void)
{
return !bq24617_stat2_value;
@@ -75,23 +81,23 @@ static void bq24617_work(struct work_struct *work)
{
struct bq24617_data *bq_data =
container_of(work, struct bq24617_data, work);
int stat1;
int detect = 0;
/* STAT1 indicates charging, STAT2 indicates charge complete */
stat1 = gpio_get_value(irq_to_gpio(bq_data->stat1_irq));
bq24617_stat1_value = gpio_get_value(irq_to_gpio(bq_data->stat1_irq));
bq24617_stat2_value = gpio_get_value(irq_to_gpio(bq_data->stat2_irq));
if (bq_data->detect_irq >= 0)
detect = gpio_get_value(irq_to_gpio(bq_data->detect_irq));
if (!stat1 || !bq24617_stat2_value || detect)
if (!bq24617_stat1_value || !bq24617_stat2_value || detect)
bq_data->ac_online = 1;
else
bq_data->ac_online = 0;
pr_info("%s: ac_online=%d (stat1=%d, stat2=%d, detect=%d)\n", __func__,
bq_data->ac_online, stat1, bq24617_stat2_value, detect);
bq_data->ac_online, bq24617_stat1_value, bq24617_stat2_value,
detect);
power_supply_changed(&bq_data->ac);
wake_unlock(&bq_data->wake_lock);