tps65090: Setup compatible property for dt

Setup the compatible property so that when this device is registered
through device tree, it can match the expected compatiblity string used in
the tps65090 driver.
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>

drivers/power/tps65090-charger.c

@@ -168,7 +168,7 @@ static struct tps65090_platform_data *
 		tps65090_parse_dt_charger_data(struct platform_device *pdev)
 {
 	struct tps65090_platform_data *pdata;
-	struct device_node *np = pdev->dev.parent->of_node;
+	struct device_node *np = pdev->dev.of_node;
 	unsigned int prop;
 
 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
@@ -195,7 +195,6 @@ static struct tps65090_platform_data *
 
 static int tps65090_charger_probe(struct platform_device *pdev)
 {
-	struct tps65090 *tps65090_mfd = dev_get_drvdata(pdev->dev.parent);
 	struct tps65090_charger *cdata;
 	struct tps65090_platform_data *pdata;
 	uint8_t status1 = 0;
@@ -204,7 +203,7 @@ static int tps65090_charger_probe(struct platform_device *pdev)
 
 	pdata = dev_get_platdata(pdev->dev.parent);
 
-	if (!pdata && tps65090_mfd->dev->of_node)
+	if (!pdata && pdev->dev.of_node)
 		pdata = tps65090_parse_dt_charger_data(pdev);
 
 	if (!pdata) {
@@ -300,9 +299,15 @@ static int tps65090_charger_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static struct of_device_id of_tps65090_charger_match[] = {
+	{ .compatible = "ti,tps65090-charger", },
+	{ /* end */ }
+};
+
 static struct platform_driver tps65090_charger_driver = {
 	.driver	= {
 		.name	= "tps65090-charger",
+		.of_match_table = of_tps65090_charger_match,
 		.owner	= THIS_MODULE,
 	},
 	.probe	= tps65090_charger_probe,