charger-manager: Set current limit of regulator for over current protection

This patch support the protection of host device from over current.
The Charger-manager set proper current limit of charger(regulator) for
charging according to type of charger cable when external connector
is attached.

Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Myungjoo Ham <[email protected]>
Signed-off-by: Kyungmin Park <[email protected]>
Signed-off-by: Anton Vorontsov <[email protected]>
This commit is contained in:
Chanwoo Choi 2012-07-12 15:03:29 +09:00 • committed by Anton Vorontsov
commit 45cd4fb28b
2 changed files with 23 additions and 0 deletions

View file

@ -1001,6 +1001,21 @@ static void charger_extcon_work(struct work_struct *work)
{
struct charger_cable *cable =
container_of(work, struct charger_cable, wq);
int ret;
if (cable->attached && cable->min_uA != 0 && cable->max_uA != 0) {
ret = regulator_set_current_limit(cable->charger->consumer,
cable->min_uA, cable->max_uA);
if (ret < 0) {
pr_err("Cannot set current limit of %s (%s)\n",
cable->charger->regulator_name, cable->name);
return;
}
pr_info("Set current limit of %s : %duA ~ %duA\n",
cable->charger->regulator_name,
cable->min_uA, cable->max_uA);
}
try_charger_enable(cable->cm, cable->attached);
}