On Sat, Oct 31, 2020 at 06:18:01PM +0000, Jonathan Cameron wrote:
> From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
>
> Very similar to the mpu6050 binding.
> Only unusual element is the i2c-gate section.
> Example tweaked a little to include a real device behind the gate.
>
> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
> Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
> ---
> .../iio/gyroscope/invensense,mpu3050.txt | 45 ------------
> .../iio/gyroscope/invensense,mpu3050.yaml | 70 +++++++++++++++++++
> 2 files changed, 70 insertions(+), 45 deletions(-)
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
> diff --git a/Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.txt b/Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.txt
> deleted file mode 100644
> index 233fe207aded..000000000000
> --- a/Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.txt
> +++ /dev/null
> @@ -1,45 +0,0 @@
> -Invensense MPU-3050 Gyroscope device tree bindings
> -
> -Required properties:
> - - compatible : should be "invensense,mpu3050"
> - - reg : the I2C address of the sensor
> -
> -Optional properties:
> - - 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>;
> - };
> - };
> -};
> diff --git a/Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.yaml b/Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.yaml
> new file mode 100644
> index 000000000000..b0a476afb656
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.yaml
> @@ -0,0 +1,70 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/gyroscope/invensense,mpu3050.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Invensense MPU-3050 Gyroscope
> +
> +maintainers:
> + - Linus Walleij <linus.walleij@xxxxxxxxxx>
> +
> +properties:
> + compatible:
> + const: invensense,mpu3050
> +
> + reg:
> + maxItems: 1
> +
> + vdd-supply: true
> +
> + vlogic-supply: true
> +
> + interrupts:
> + minItems: 1
> + description:
> + Interrupt mapping for the trigger interrupt from the internal oscillator.
> +
> + mount-matrix: true
> +
> + i2c-gate:
> + $ref: "../../i2c/i2c-gate.yaml"
> + unevaluatedProperties: false
> + description: |
> + 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.
> +
> +required:
> + - compatible
> + - reg
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + gyroscope@68 {
> + compatible = "invensense,mpu3050";
> + reg = <0x68>;
> + interrupt-parent = <&foo>;
> + interrupts = <12 IRQ_TYPE_EDGE_FALLING>;
> + vdd-supply = <&bar>;
> + vlogic-supply = <&baz>;
> +
> + i2c-gate {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + magnetometer@c {
> + compatible = "ak,ak8975";
> + reg = <0x0c>;
> + };
> + };
> + };
> + };
> +...
> --
> 2.28.0
>
