kernel:avoid FG reset algorithm

Avoid FG reset
algorithm

Change-Id: I0a58b08d35a9db5335412a2137a71b4958760008
Signed-off-by: xuwei9 <xuwei9@mt.com>
Reviewed-on: https://gerrit.mot.com/1293527
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>
Submit-Approved: Jira Key

diff --git a/drivers/power/supply/s2mu00x_battery.c b/drivers/power/supply/s2mu00x_battery.c
index e3e12bd2bcd352112a94a6f8f76fd08adb4a19e1..75721d2a6f15abd4efa39e8b67a636c407713dca 100644 (file)
--- a/drivers/power/supply/s2mu00x_battery.c
+++ b/drivers/power/supply/s2mu00x_battery.c
@@ -478,7 +478,7 @@ struct s2mu00x_battery_info {
 };
 
 static int is_charging_mode = S2MU00X_NOR_MODE;
-
+bool is_cable_present(struct s2mu00x_battery_info *chip);
 static void smbchg_stay_awake(struct s2mu00x_battery_info *chip);
 static void smbchg_relax(struct s2mu00x_battery_info *chip);
 bool is_dc_present(struct s2mu00x_battery_info *chip);
@@ -2731,6 +2731,28 @@ bool is_usb_present(struct s2mu00x_battery_info *chip)
        return present;
 }
 
+bool is_cable_present(struct s2mu00x_battery_info *chip)
+{
+        int type = chip->cable_type;
+        bool present = false;
+
+        switch (type) {
+        case POWER_SUPPLY_TYPE_UNKNOWN:
+        case POWER_SUPPLY_TYPE_BATTERY:
+        case POWER_SUPPLY_TYPE_OTG:
+        case POWER_SUPPLY_TYPE_END:
+                present = false;
+                break;
+        default:
+                present = true;
+                break;
+        }
+
+        printk(KERN_ERR "%s,cable_present:%d",__func__,present);
+
+        return present;
+}
+
 bool is_sdp_cdp(struct s2mu00x_battery_info *chip)
 {
         int type = chip->cable_type;
@@ -3840,8 +3862,12 @@ static void smbchg_heartbeat_work(struct work_struct *work)
        int index;
        int state;
 
-       pr_info("%s: start heatbeat\n", __func__);
+       if(!is_cable_present(chip)){
+               pr_info("%s:cable not inserted\n",__func__);
+               return;
+       }
 
+       pr_info("%s: start heatbeat\n", __func__);
        //smbchg_stay_awake(chip);
        //dump register of charger
        get_property_from_charger(chip, POWER_SUPPLY_PROP_PRESENT, &state);