bq2415x_charger: Add support for offline and 100mA mode

* Renamed mode BQ2415X_MODE_NONE to BQ2415X_MODE_OFF because this mode
  turning chaging completly off

* Added new mode BQ2415X_MODE_NONE which enable charging with maximal
  current limit 100mA (this is minimal safe value for bq2415x chips)

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
diff --git a/include/linux/power/bq2415x_charger.h b/include/linux/power/bq2415x_charger.h
index 97a1665..8dcc0f4 100644
--- a/include/linux/power/bq2415x_charger.h
+++ b/include/linux/power/bq2415x_charger.h
@@ -75,7 +75,8 @@
 
 /* Supported modes with maximal current limit */
 enum bq2415x_mode {
-	BQ2415X_MODE_NONE,		/* unknown or no charger (100mA) */
+	BQ2415X_MODE_OFF,		/* offline mode (charger disabled) */
+	BQ2415X_MODE_NONE,		/* unknown charger (100mA) */
 	BQ2415X_MODE_HOST_CHARGER,	/* usb host/hub charger (500mA) */
 	BQ2415X_MODE_DEDICATED_CHARGER, /* dedicated charger (unlimited) */
 	BQ2415X_MODE_BOOST,		/* boost mode (charging disabled) */