iio: magnetometer: mag3110: Add OF device ID table

The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c
index b4f643f..dad8d57 100644 (file)
--- a/drivers/iio/magnetometer/mag3110.c
+++ b/drivers/iio/magnetometer/mag3110.c
@@ -441,9 +441,16 @@ static const struct i2c_device_id mag3110_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, mag3110_id);
 
+static const struct of_device_id mag3110_of_match[] = {
+       { .compatible = "fsl,mag3110" },
+       { }
+};
+MODULE_DEVICE_TABLE(of, mag3110_of_match);
+
 static struct i2c_driver mag3110_driver = {
        .driver = {
                .name   = "mag3110",
+               .of_match_table = mag3110_of_match,
                .pm     = MAG3110_PM_OPS,
        },
        .probe = mag3110_probe,