On 25/10/16 15:15, Linus Walleij wrote:
> 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@xxxxxxxxxxxxxxx
> Cc: Peter Rosin <peda@xxxxxxxxxx>
> Acked-by: Rob Herring <robh@xxxxxxxxxx>
> Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Applied to the togreg branch of iio.git and pushed out as testing
for the autobuilders to largely ignore this patch ;)
Thanks
Jonathan
> ---
> ChangeLog v5->v6:
> - No changes, just reposting.
> ChangeLog v4->v5:
> - No changes, just reposting.
> ChangeLog v3->v4:
> - No changes, just reposting. If we agree on these bindings and since
> the dependent I2C bindings are merged, this patch should be merge
> material now I guess.
> ChangeLog v2->v3:
> - Augmented device tree bindings to reflect Peter Rosins now merged
> I2C gate bindings.
> ChangeLog v1->v2:
> - Not yet convered to use i2c-gate as I'm waiting for that
> patch set to stabilize.
> ---
> .../bindings/iio/gyroscope/invensense,mpu3050.txt | 46 ++++++++++++++++++++++
> 1 file changed, 46 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.txt
>
> diff --git a/Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.txt b/Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.txt
> new file mode 100644
> index 000000000000..b0d3b59966bc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.txt
> @@ -0,0 +1,46 @@
> +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>;
> + };
> + };
> +};
>
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