Merge "of_batterydata: add qcom,batt-id-range-pct support"

- qcom,vref-batt-therm-uv : The vadc voltage used to make readings.

			For Qualcomm VADCs this should be 1800000uV.

qcom,battery-data node optional properties:

- qcom,batt-id-range-pct : The area of variation between upper and lower bound

			for which a given battery ID resistance is valid. This

			value is expressed as a percentage of the specified kohm

			resistance provided by qcom,batt-id-kohm.

qcom,battery-data can also include any number of children nodes. These children

nodes will be treated as battery profile data nodes.

	struct power_supply *psy;

	const char *battery_type = NULL;

	union power_supply_propval ret = {0, };

	int delta = 0, best_delta = 0, best_id_kohm = 0,

	int delta = 0, best_delta = 0, best_id_kohm = 0, id_range_pct,

		batt_id_kohm = 0, i = 0, rc = 0;

	psy = power_supply_get_by_name(psy_name);

		return best_node;

	}

	/* read battery id value for best profile */

	rc = of_property_read_u32(batterydata_container_node,

			"qcom,batt-id-range-pct", &id_range_pct);

	if (!rc) {

		/* check that profile id is in range of the measured batt_id */

		if (abs(best_id_kohm - batt_id_kohm) >

				((best_id_kohm * id_range_pct) / 100)) {

			pr_err("out of range: profile id %d batt id %d pct %d",

				best_id_kohm, batt_id_kohm, id_range_pct);

			return NULL;

		}

	} else if (rc == -EINVAL) {

		rc = 0;

	} else {

		pr_err("failed to read battery id range\n");

		return ERR_PTR(-ENXIO);

	}

	rc = of_property_read_string(best_node, "qcom,battery-type",

							&battery_type);

	if (!rc)