xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source 
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 <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
This commit is contained in:
Chanwoo Choi
2012-07-12 15:03:29 +09:00
committed by Anton Vorontsov
parent bee737bccb
commit 45cd4fb28b
2 changed files with 23 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/power/charger-manager.c
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);
}