Add device tree support for LIS3MDL and LSM303AGR magnetometer sensors
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@xxxxxx>
---
drivers/iio/magnetometer/st_magn_spi.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/iio/magnetometer/st_magn_spi.c b/drivers/iio/magnetometer/st_magn_spi.c
index f3cb4dc05391..1ea64dd318aa 100644
--- a/drivers/iio/magnetometer/st_magn_spi.c
+++ b/drivers/iio/magnetometer/st_magn_spi.c
@@ -18,6 +18,28 @@
#include <linux/iio/common/st_sensors_spi.h>
#include "st_magn.h"
+#ifdef CONFIG_OF
+/*
+ * For new single-chip sensors use <device_name> as compatible string.
+ * For old single-chip devices keep <device_name>-magn to maintain
+ * compatibility
+ */
+static const struct of_device_id st_magn_of_match[] = {
+ {
+ .compatible = "st,lis3mdl-magn",
+ .data = LIS3MDL_MAGN_DEV_NAME,
+ },
+ {
+ .compatible = "st,lsm303agr-magn",
+ .data = LSM303AGR_MAGN_DEV_NAME,
+ },
+ {}
+};
+MODULE_DEVICE_TABLE(of, st_magn_of_match);
+#else
+#define st_magn_of_match NULL
+#endif
+
static int st_magn_spi_probe(struct spi_device *spi)
{
struct iio_dev *indio_dev;
@@ -30,6 +52,8 @@ static int st_magn_spi_probe(struct spi_device *spi)
mdata = iio_priv(indio_dev);
+ st_sensors_of_name_probe(&spi->dev, st_magn_of_match,
+ spi->modalias, sizeof(spi->modalias));
st_sensors_spi_configure(indio_dev, spi, mdata);
err = st_magn_common_probe(indio_dev);
@@ -57,6 +81,7 @@ MODULE_DEVICE_TABLE(spi, st_magn_id_table);
static struct spi_driver st_magn_driver = {
.driver = {
.name = "st-magn-spi",
+ .of_match_table = of_match_ptr(st_magn_of_match),
},
.probe = st_magn_spi_probe,
.remove = st_magn_spi_remove,
--
2.13.1
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