#include <linux/module.h>

@@ -41,6 +45,18 @@
 
 #define BQ24257_ILIM_SET_DELAY		1000	/* msec */
 
+enum bq2425x_chip {
+	BQ24250,
+	BQ24251,
+	BQ24257,
+};
+
+static const char *bq2425x_chip_name[] = {

+	"bq24250",
+	"bq24251",
+	"bq24257",
+};
+
 enum bq24257_fields {
 	F_WD_FAULT, F_WD_EN, F_STAT, F_FAULT,			    /* REG 1 */
 	F_RESET, F_IILIMIT, F_EN_STAT, F_EN_TERM, F_CE, F_HZ_MODE,  /* REG 2 */

@@ -71,6 +87,8 @@ struct bq24257_device {
 	struct device *dev;
 	struct power_supply *charger;
 
+	enum bq2425x_chip chip;
+
 	struct regmap *rmap;
 	struct regmap_field *rmap_fields[F_MAX_FIELDS];
 

@@ -250,6 +268,10 @@ static int bq24257_power_supply_get_property(struct power_supply *psy,
 		val->strval = BQ24257_MANUFACTURER;
 		break;
 
+	case POWER_SUPPLY_PROP_MODEL_NAME:
+		val->strval = bq2425x_chip_name[bq->chip];
+		break;
+
 	case POWER_SUPPLY_PROP_ONLINE:
 		val->intval = state.power_good;
 		break;

@@ -570,6 +592,7 @@ static int bq24257_hw_init(struct bq24257_device *bq)
 
 static enum power_supply_property bq24257_power_supply_props[] = {
 	POWER_SUPPLY_PROP_MANUFACTURER,
+	POWER_SUPPLY_PROP_MODEL_NAME,
 	POWER_SUPPLY_PROP_STATUS,
 	POWER_SUPPLY_PROP_ONLINE,
 	POWER_SUPPLY_PROP_HEALTH,

@@ -667,6 +690,7 @@ static int bq24257_probe(struct i2c_client *client,
 {
 	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
 	struct device *dev = &client->dev;
+	const struct acpi_device_id *acpi_id;
 	struct bq24257_device *bq;
 	int ret;
 	int i;

@@ -683,6 +707,18 @@ static int bq24257_probe(struct i2c_client *client,
 	bq->client = client;
 	bq->dev = dev;
 
+	if (ACPI_HANDLE(dev)) {
+		acpi_id = acpi_match_device(dev->driver->acpi_match_table,
+				&client->dev);
+		if (!acpi_id) {
+			dev_err(dev, "Failed to match ACPI device\n");
+			return -ENODEV;
+		}
+		bq->chip = (enum bq2425x_chip)acpi_id->driver_data;
+	} else {
+		bq->chip = (enum bq2425x_chip)id->driver_data;
+	}
+
 	mutex_init(&bq->lock);
 
 	bq->rmap = devm_regmap_init_i2c(client, &bq24257_regmap_config);

@@ -824,19 +860,27 @@ static const struct dev_pm_ops bq24257_pm = {
 };
 
 static const struct i2c_device_id bq24257_i2c_ids[] = {
-	{ "bq24257", 0 },
+	{ "bq24250", BQ24250 },
+	{ "bq24251", BQ24251 },
+	{ "bq24257", BQ24257 },
 	{},
 };
 MODULE_DEVICE_TABLE(i2c, bq24257_i2c_ids);
 
 static const struct of_device_id bq24257_of_match[] = {
-	{ .compatible = "ti,bq24257", },
+	{
+		.compatible = "ti,bq24250",
+		.compatible = "ti,bq24251",
+		.compatible = "ti,bq24257",
+	},