google_charger: make disable power source function working

Bug: 132317588
Test: adb shell "echo XX > sys/devices/platform/soc/soc:google,charger/charge_stop_level"
      If current SOC > XX (stop level), usb input current will be stopped.
      And it will be recovered when current SOC <= XX

Change-Id: I240d945e1f7d28dc1ab4aa3e1e98693973fe2233
Signed-off-by: Ken Tsou <kentsou@google.com>
Signed-off-by: AleX Pelosi <apelosi@google.com>

drivers/power/supply/google/google_battery.c

@@ -1364,13 +1364,12 @@ static int msc_logic(struct batt_drv *batt_drv)
 		chg_state->f.icl);
 
 	if ((batt_drv->chg_state.f.flags & GBMS_CS_FLAG_BUCK_EN) == 0) {
-	/* here on: disconnect */
 
 		if (batt_drv->buck_enabled == 0)
 			goto msc_logic_exit;
 
+		/* here on: disconnect */
 		batt_chg_stats_pub(batt_drv, "disconnect", false);
-
 		batt_res_state_set(&batt_drv->res_state, false);
 
 		/* change curve before changing the state */
@@ -1742,6 +1741,21 @@ static int debug_set_ssoc_rls(void *data, u64 val)
 DEFINE_SIMPLE_ATTRIBUTE(debug_ssoc_rls_fops,
 				debug_get_ssoc_rls, debug_set_ssoc_rls, "%u\n");
 
+static int debug_force_psy_update(void *data, u64 val)
+{
+	struct batt_drv *batt_drv = (struct batt_drv *)data;
+
+	if (!batt_drv->psy)
+		return -EINVAL;
+
+	power_supply_changed(batt_drv->psy);
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(debug_force_psy_update_fops,
+				NULL, debug_force_psy_update, "%u\n");
+
+
 static ssize_t debug_get_ssoc_uicurve(struct file *filp,
 					   char __user *buf,
 					   size_t count, loff_t *ppos)
@@ -1938,7 +1952,11 @@ static int batt_init_fs(struct batt_drv *batt_drv)
 				    batt_drv, &debug_ssoc_rls_fops);
 		debugfs_create_file("ssoc_uicurve", 0600, de,
 				    batt_drv, &debug_ssoc_uicurve_cstr_fops);
+		debugfs_create_file("force_psy_update", 0400, de,
+				    batt_drv, &debug_force_psy_update_fops);
 	}
+
+
 #endif
 
 	return ret;

drivers/power/supply/google/google_bms.h

@@ -205,6 +205,7 @@ const char *gbms_chg_ev_adapter_s(int adapter);
 
 /* Votables */
 #define VOTABLE_MSC_CHG_DISABLE	"MSC_CHG_DISABLE"
+#define VOTABLE_MSC_PWR_DISABLE	"MSC_PWR_DISABLE"
 #define VOTABLE_MSC_INTERVAL	"MSC_INTERVAL"
 #define VOTABLE_MSC_FCC		"MSC_FCC"
 #define VOTABLE_MSC_FV		"MSC_FV"