[PATCH 14/17] iio: accel: mma7455_i2c: Add OF device ID table

From: Javier Martinez Canillas
Date: Mon Mar 13 2017 - 16:03:02 EST


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@xxxxxxxxxxxxxxx>
---

drivers/iio/accel/mma7455_i2c.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/iio/accel/mma7455_i2c.c b/drivers/iio/accel/mma7455_i2c.c
index 3cab5fb4a3c4..00913a7a99e1 100644
--- 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 = of_match_ptr(mma7455_of_match),
},
};
module_i2c_driver(mma7455_i2c_driver);
--
2.9.3