Continuously track the charging status register in order to send uevents
whenever the state changes. Generate an uevent also when the chip's OTG
line is toggled, in bq2415x_notifier_call().

Signed-off-by: Sicelo A. Mhlongo <absicsz@???>
---
drivers/power/supply/bq2415x_charger.c | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/drivers/power/supply/bq2415x_charger.c b/drivers/power/supply/bq2415x_charger.c
index 1a02195769a3..0234f7724872 100644
--- a/drivers/power/supply/bq2415x_charger.c
+++ b/drivers/power/supply/bq2415x_charger.c
@@ -171,6 +171,7 @@ struct bq2415x_device {
     char *name;
     int autotimer;    /* 1 - if driver automatically reset timer, 0 - not */
     int automode;    /* 1 - enabled, 0 - disabled; -1 - not supported */
+    int charge_status;
     int id;
 };

@@ -835,6 +836,8 @@ static int bq2415x_notifier_call(struct notifier_block *nb,
     if (!bq2415x_update_reported_mode(bq, prop.intval))
         return NOTIFY_OK;

+    power_supply_changed(bq->charger);
+
     /* if automode is not enabled do not tell about reported_mode */
     if (bq->automode < 1)
         return NOTIFY_OK;
@@ -889,12 +892,19 @@ static void bq2415x_timer_work(struct work_struct *work)
     int ret;
     int error;
     int boost;
+    int charge;

     if (bq->automode > 0 && (bq->reported_mode != bq->mode)) {
         sysfs_notify(&bq->charger->dev.kobj, NULL, "reported_mode");
         bq2415x_set_mode(bq, bq->reported_mode);
     }

+    charge = bq2415x_exec_command(bq, BQ2415X_CHARGE_STATUS);
+    if (bq->charge_status != charge) {
+        power_supply_changed(bq->charger);
+        bq->charge_status = charge;
+    }
+
     if (!bq->autotimer)
         return;

--
2.45.2