iio: mma8452: add DT support

Allow the mma8452 to be described in the device tree.

Since no device specific binding attributes exist the trivial
I2C binding is sufficient to describe the compatible string.

Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
index bef86e57c3889d4890ddd0212867c087ac72e989..1a794213f7d1e8fe17988464919ca1f0662d181b 100644 (file)
--- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt
+++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
@@ -50,6 +50,7 @@ epson,rx8581          I2C-BUS INTERFACE REAL TIME CLOCK MODULE
 fsl,mag3110            MAG3110: Xtrinsic High Accuracy, 3D Magnetometer
 fsl,mc13892            MC13892: Power Management Integrated Circuit (PMIC) for i.MX35/51
 fsl,mma8450            MMA8450Q: Xtrinsic Low-power, 3-axis Xtrinsic Accelerometer
+fsl,mma8452            MMA8452Q: 3-axis 12-bit / 8-bit Digital Accelerometer
 fsl,mpr121             MPR121: Proximity Capacitive Touch Sensor Controller
 fsl,sgtl5000           SGTL5000: Ultra Low-Power Audio Codec
 gmt,g751               G751: Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface

diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index 17aeea1705665f799990dd7ae69029c7cf09330c..9231f8a65e7999ba7c00bf3b0413bbd0a8185102 100644 (file)
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -423,9 +423,15 @@ static const struct i2c_device_id mma8452_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, mma8452_id);
 
+static const struct of_device_id mma8452_dt_ids[] = {
+       { .compatible = "fsl,mma8452" },
+       { }
+};
+
 static struct i2c_driver mma8452_driver = {
        .driver = {
                .name   = "mma8452",
+               .of_match_table = of_match_ptr(mma8452_dt_ids),
                .pm     = MMA8452_PM_OPS,
        },
        .probe = mma8452_probe,