[PATCH v1 3/3] iio: adc: tsc2046: silent spi_device_id warning

[Oleksij Rempel <o.rempel@pengutronix.de>]

Add spi_device_id to silent following warning:
 SPI driver tsc2046 has no spi_device_id for ti,tsc2046e-adc

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
 drivers/iio/adc/ti-tsc2046.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ti-tsc2046.c b/drivers/iio/adc/ti-tsc2046.c
index bbc8b4137b0b1..b9a1fac659d46 100644
--- a/drivers/iio/adc/ti-tsc2046.c
+++ b/drivers/iio/adc/ti-tsc2046.c
@@ -761,7 +761,15 @@ static int tsc2046_adc_probe(struct spi_device *spi)
 		return -EINVAL;
 	}
 
-	dcfg = device_get_match_data(dev);
+	if (!dev_fwnode(dev)) {
+		const struct spi_device_id *id;
+
+		id = spi_get_device_id(spi);
+		dcfg = (const struct tsc2046_adc_dcfg *)id->driver_data;
+	} else {
+		dcfg = device_get_match_data(dev);
+	}
+
 	if (!dcfg)
 		return -EINVAL;
 
@@ -878,11 +886,18 @@ static const struct of_device_id ads7950_of_table[] = {
 };
 MODULE_DEVICE_TABLE(of, ads7950_of_table);
 
+static const struct spi_device_id tsc2046_adc_spi_ids[] = {
+	{ "tsc2046e-adc" },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, tsc2046_adc_spi_ids);
+
 static struct spi_driver tsc2046_adc_driver = {
 	.driver = {
 		.name = "tsc2046",
 		.of_match_table = ads7950_of_table,
 	},
+	.id_table = tsc2046_adc_spi_ids,
 	.probe = tsc2046_adc_probe,
 	.remove = tsc2046_adc_remove,
 };
-- 
2.30.2