[PATCH 1/2] charger-manager: Disable regulator for charging whencharger cable is detached

[Chanwoo Choi]

This patch disable regulator for charging when charger cable is detached
before stopping charging forcibly on abnormal battery state and check
return value of regulator_enable/disable() function to confirm correct
operation of enabling or disabling regulator for charging.

Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
Signed-off-by: Myungjoo Ham <myungjoo.ham@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
 drivers/power/charger-manager.c |   19 +++++++++++++++++--
 1 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c
index 526e5c9..240de49 100644
--- a/drivers/power/charger-manager.c
+++ b/drivers/power/charger-manager.c
@@ -271,9 +271,24 @@ static int try_charger_enable(struct charger_manager *cm, bool enable)
 	if (enable) {
 		if (cm->emergency_stop)
 			return -EAGAIN;
-		for (i = 0 ; i < desc->num_charger_regulators ; i++)
-			regulator_enable(desc->charger_regulators[i].consumer);
+		for (i = 0 ; i < desc->num_charger_regulators ; i++) {
+			err = regulator_enable(desc->charger_regulators[i].consumer);
+			if (err < 0) {
+				dev_warn(cm->dev,
+					"Cannot enable %s regulator\n",
+					desc->charger_regulators[i].regulator_name);
+			}
+		}
 	} else {
+		for (i = 0 ; i < desc->num_charger_regulators ; i++) {
+			err = regulator_disable(desc->charger_regulators[i].consumer);
+			if (err < 0) {
+				dev_warn(cm->dev,
+					"Cannot disable %s regulator\n",
+					desc->charger_regulators[i].regulator_name);
+			}
+		}
+
 		/*
 		 * Abnormal battery state - Stop charging forcibly,
 		 * even if charger was enabled at the other places
-- 
1.7.0.4

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