iio: gyro: Add MPU-3050 device tree bindings

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>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Linus Walleij 2016-10-25 16:15:53 +02:00 committed by Jonathan Cameron
parent 49b9137a60
commit e0549df64e
1 changed files with 46 additions and 0 deletions

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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
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 gate node. For details see: i2c/i2c-gate.txt
Example:
mpu3050@68 {
compatible = "invensense,mpu3050";
reg = <0x68>;
interrupt-parent = <&foo>;
interrupts = <12 IRQ_TYPE_EDGE_FALLING>;
vdd-supply = <&bar>;
vlogic-supply = <&baz>;
/* External I2C interface */
i2c-gate {
#address-cells = <1>;
#size-cells = <0>;
fnord@18 {
compatible = "fnord";
reg = <0x18>;
interrupt-parent = <&foo>;
interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
};
};
};