power: supply: add battery parameters

Add parsing of new device-tree battery bindings.

     - trickle-charge-current-microamp
     - precharge-upper-limit-microvolt
     - re-charge-voltage-microvolt
     - over-voltage-threshold-microvolt
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

drivers/power/supply/power_supply_core.c

@@ -620,10 +620,18 @@ int power_supply_get_battery_info(struct power_supply *psy,
 			     &info->voltage_min_design_uv);
 	of_property_read_u32(battery_np, "voltage-max-design-microvolt",
 			     &info->voltage_max_design_uv);
+	of_property_read_u32(battery_np, "trickle-charge-current-microamp",
+			     &info->tricklecharge_current_ua);
 	of_property_read_u32(battery_np, "precharge-current-microamp",
 			     &info->precharge_current_ua);
+	of_property_read_u32(battery_np, "precharge-upper-limit-microvolt",
+			     &info->precharge_voltage_max_uv);
 	of_property_read_u32(battery_np, "charge-term-current-microamp",
 			     &info->charge_term_current_ua);
+	of_property_read_u32(battery_np, "re-charge-voltage-microvolt",
+			     &info->charge_restart_voltage_uv);
+	of_property_read_u32(battery_np, "over-voltage-threshold-microvolt",
+			     &info->overvoltage_limit_uv);
 	of_property_read_u32(battery_np, "constant-charge-current-max-microamp",
 			     &info->constant_charge_current_max_ua);
 	of_property_read_u32(battery_np, "constant-charge-voltage-max-microvolt",

include/linux/power_supply.h

@@ -346,8 +346,12 @@ struct power_supply_battery_info {
 	int charge_full_design_uah;	    /* microAmp-hours */
 	int voltage_min_design_uv;	    /* microVolts */
 	int voltage_max_design_uv;	    /* microVolts */
+	int tricklecharge_current_ua;	    /* microAmps */
 	int precharge_current_ua;	    /* microAmps */
+	int precharge_voltage_max_uv;	    /* microVolts */
 	int charge_term_current_ua;	    /* microAmps */
+	int charge_restart_voltage_uv;	    /* microVolts */
+	int overvoltage_limit_uv;	    /* microVolts */
 	int constant_charge_current_max_ua; /* microAmps */
 	int constant_charge_voltage_max_uv; /* microVolts */
 	int factory_internal_resistance_uohm;   /* microOhms */