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+Invensense MPU-3050 Gyroscope device tree bindings
+
+Required properties:
+ - compatible : should be "invensense,mpu3050"
+ - reg : the I2C address of the sensor
+ - #address-cells : should be <1>, used to indicate the optional
+ I2C mux node
+ - #size-cells : should be <0>
+
+Optional properties:
+ - interrupt-parent : should be the phandle for the interrupt controller
+ - interrupts : interrupt mapping for the trigger interrupt from the
+ internal oscillator. The following IRQ modes are supported:
+ IRQ_TYPE_EDGE_RISING, IRQ_TYPE_EDGE_FALLING, IRQ_TYPE_LEVEL_HIGH and
+ IRQ_TYPE_LEVEL_LOW. The driver should detect and configure the hardware
+ for the desired interrupt type.
+ - vdd-supply : supply regulator for the main power voltage.
+ - vlogic-supply : supply regulator for the signal voltage.
+ - mount-matrix : see iio/mount-matrix.txt
+
+Optional subnodes:
+ - The MPU-3050 will pass through and forward the I2C signals from the
+ incoming I2C bus, alternatively drive traffic to a slave device (usually
+ an accelerometer) on its own initiative. Therefore is supports a subnode
+ i2c master node. This node is like any I2C master and should contain:
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+Example:
+
+mpu3050@68 {
+ compatible = "invensense,mpu3050";
+ reg = <0x68>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupt-parent = <&foo>;
+ interrupts = <12 IRQ_TYPE_EDGE_FALLING>;
+ vdd-supply = <&bar>;
+ vlogic-supply = <&baz>;
+
+ /* External I2C interface */
+ i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ fnord@18 {
+ compatible = "fnord";
+ reg = <0x18>;
+ interrupt-parent = <&foo>;
+ interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+ };
+ };
+};
This adds device tree bindings for the MPU-3050 gyroscope. Since it is the first set of bindings for a gyroscope, the folder for it is also created. Cc: devicetree@vger.kernel.org Cc: Peter Rosin <peda@axentia.se> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- ChangeLog v1->v2: - Not yet convered to use i2c-gate as I'm waiting for that patch set to stabilize. - No changes, just reposting to keep the series together. --- .../bindings/iio/gyroscope/invensense,mpu3050.txt | 54 ++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.txt