[PATCH] hmc5843 - add basic dt support

From: NeilBrown
Date: Fri Nov 01 2013 - 01:35:52 EST




No configuration, just a compatible string and documentation.

Signed-off-by: NeilBrown <neilb@xxxxxxx>

diff --git a/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt b/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt
new file mode 100644
index 000000000000..90d5f34db04e
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt
@@ -0,0 +1,17 @@
+* Honeywell HMC5843 magnetometer sensor
+
+Required properties:
+
+ - compatible : should be "honeywell,hmc5843"
+ - reg : the I2C address of the magnetometer - typically 0x1e
+
+Optional properties:
+
+ - gpios : should be device tree identifier of the magnetometer DRDY pin
+
+Example:
+
+hmc5843@1e {
+ compatible = "honeywell,hmc5843"
+ reg = <0x1e>;
+};
diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index c3f3f539e787..829734a82f69 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -719,10 +719,17 @@ static const struct i2c_device_id hmc5843_id[] = {
};
MODULE_DEVICE_TABLE(i2c, hmc5843_id);

+static const struct of_device_id hmc5843_of_match[] = {
+ { .compatible = "honeywell,hmc5843" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, hmc5843_of_match);
+
static struct i2c_driver hmc5843_driver = {
.driver = {
.name = "hmc5843",
.pm = HMC5843_PM_OPS,
+ .of_match_table = of_match_ptr(hmc5843_of_match),
},
.id_table = hmc5843_id,
.probe = hmc5843_probe,

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