iio: light: bh1750: Add device tree support

Add device tree support for ROHM BH1750 series ambient light sensors.
Signed-off-by: ryang <decatf@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/light/bh1750.c

@@ -307,9 +307,20 @@ static const struct i2c_device_id bh1750_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, bh1750_id);
 
+static const struct of_device_id bh1750_of_match[] = {
+	{ .compatible = "rohm,bh1710", },
+	{ .compatible = "rohm,bh1715", },
+	{ .compatible = "rohm,bh1721", },
+	{ .compatible = "rohm,bh1750", },
+	{ .compatible = "rohm,bh1751", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, bh1750_of_match);
+
 static struct i2c_driver bh1750_driver = {
 	.driver = {
 		.name = "bh1750",
+		.of_match_table = bh1750_of_match,
 		.pm = &bh1750_pm_ops,
 	},
 	.probe = bh1750_probe,