linux-kernel - [PATCH 17/17] iio: gyro: itg3200: Add OF device ID table

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Date:   Mon, 13 Mar 2017 16:59:17 -0300
From:   Javier Martinez Canillas <javier@....samsung.com>
To:     linux-kernel@...r.kernel.org
Cc:     Javier Martinez Canillas <javier@....samsung.com>,
        linux-iio@...r.kernel.org, Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Jonathan Cameron <jic23@...nel.org>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>
Subject: [PATCH 17/17] iio: gyro: itg3200: 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@....samsung.com>

---

 drivers/iio/gyro/itg3200_core.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/iio/gyro/itg3200_core.c b/drivers/iio/gyro/itg3200_core.c
index c102a6325bb0..a718166d16f0 100644
--- a/drivers/iio/gyro/itg3200_core.c
+++ b/drivers/iio/gyro/itg3200_core.c
@@ -377,9 +377,16 @@ static const struct i2c_device_id itg3200_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, itg3200_id);
 
+static const struct of_device_id itg3200_of_match[] = {
+	{ .compatible = "invensense,itg3200" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, itg3200_of_match);
+
 static struct i2c_driver itg3200_driver = {
 	.driver = {
 		.name	= "itg3200",
+		.of_match_table = of_match_ptr(itg3200_of_match),
 		.pm	= &itg3200_pm_ops,
 	},
 	.id_table	= itg3200_id,
-- 
2.9.3