iio: accel: mma7455_i2c: 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/accel/mma7455_i2c.c b/drivers/iio/accel/mma7455_i2c.c
index 3cab5fb4a3c499d81551d929f15d4b93aeaa7bdd..73bf81a8ab147684566670090e2152ebeeaee4eb 100644 (file)
--- a/drivers/iio/accel/mma7455_i2c.c
+++ b/drivers/iio/accel/mma7455_i2c.c
@@ -41,12 +41,20 @@ static const struct i2c_device_id mma7455_i2c_ids[] = {
 };
 MODULE_DEVICE_TABLE(i2c, mma7455_i2c_ids);
 
+static const struct of_device_id mma7455_of_match[] = {
+       { .compatible = "fsl,mma7455" },
+       { .compatible = "fsl,mma7456" },
+       { }
+};
+MODULE_DEVICE_TABLE(of, mma7455_of_match);
+
 static struct i2c_driver mma7455_i2c_driver = {
        .probe = mma7455_i2c_probe,
        .remove = mma7455_i2c_remove,
        .id_table = mma7455_i2c_ids,
        .driver = {
                .name   = "mma7455-i2c",
+               .of_match_table = mma7455_of_match,
        },
 };
 module_i2c_driver(mma7455_i2c_driver);