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Message-ID: <20250411211647.GA4049879-robh@kernel.org>
Date: Fri, 11 Apr 2025 16:16:47 -0500
From: Rob Herring <robh@...nel.org>
To: Remi Buisson <remi.buisson@....com>
Cc: Jonathan Cameron <jic23@...nel.org>,
David Lechner <dlechner@...libre.com>,
Nuno Sá <nuno.sa@...log.com>,
Andy Shevchenko <andy@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, linux-kernel@...r.kernel.org,
linux-iio@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 7/8] dt-bindings: iio: imu: Add inv_icm45600 documentation
On Fri, Apr 11, 2025 at 01:28:39PM +0000, Remi Buisson wrote:
> Document the ICM-456xxx devices devicetree bindings.
> Describe custom sysfs API for controlling the power modes.
You can drop 'documentation' from the subject.
>
> Signed-off-by: Remi Buisson <remi.buisson@....com>
> ---
> .../ABI/testing/sysfs-bus-iio-inv_icm45600 | 37 ++++++
This goes in the patch adding the sysfs files.
> .../bindings/iio/imu/invensense,icm45600.yaml | 136 +++++++++++++++++++++
> 2 files changed, 173 insertions(+)
> diff --git a/Documentation/devicetree/bindings/iio/imu/invensense,icm45600.yaml b/Documentation/devicetree/bindings/iio/imu/invensense,icm45600.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..51455f0b5cb90abdd823f154e45891ad364296e6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/imu/invensense,icm45600.yaml
> @@ -0,0 +1,136 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/imu/invensense,icm45600.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: InvenSense ICM-456xx Inertial Measurement Unit
> +
> +maintainers:
> + - Remi Buisson <remi.buisson@....com>
> +
> +description: |
> + 6-axis MotionTracking device that combines a 3-axis gyroscope and a 3-axis
> + accelerometer.
> +
> + It has a configurable host interface that supports I3C, I2C and SPI serial
> + communication, features up to 8kB FIFO and 2 programmable interrupts with
> + ultra-low-power wake-on-motion support to minimize system power consumption.
> +
> + Other industry-leading features include InvenSense on-chip APEX Motion
> + Processing engine for gesture recognition, activity classification, and
> + pedometer, along with programmable digital filters, and an embedded
> + temperature sensor.
> +
> + https://invensense.tdk.com/wp-content/uploads/documentation/DS-000576_ICM-45605.pdf
> +
> +properties:
> + compatible:
> + enum:
> + - invensense,icm45605
> + - invensense,icm45686
> + - invensense,icm45688p
> + - invensense,icm45608
> + - invensense,icm45634
> + - invensense,icm45689
> + - invensense,icm45606
> + - invensense,icm45687
sort in alpanumeric order
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + minItems: 1
> + maxItems: 2
> +
> + interrupt-names:
> + minItems: 1
> + maxItems: 2
> + items:
> + enum:
> + - INT1
> + - INT2
> + description: Choose chip interrupt pin to be used as interrupt input.
> +
> + drive-open-drain:
> + type: boolean
> +
> + vdd-supply:
> + description: Regulator that provides power to the sensor
> +
> + vddio-supply:
> + description: Regulator that provides power to the bus
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> + - interrupt-names
> +
> +allOf:
> + - $ref: /schemas/spi/spi-peripheral-props.yaml#
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/gpio/gpio.h>
> + #include <dt-bindings/interrupt-controller/irq.h>
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + icm45605@68 {
> + compatible = "invensense,icm45605";
> + reg = <0x68>;
> + interrupt-parent = <&gpio2>;
> + interrupt-names = "INT1";
> + interrupts = <7 IRQ_TYPE_EDGE_RAISING>;
> + vdd-supply = <&vdd>;
> + vddio-supply = <&vddio>;
> + mount-matrix = "1", "0", "0",
> + "0", "1", "0",
> + "0", "0", "1";
> + };
> + };
> + - |
> + #include <dt-bindings/gpio/gpio.h>
> + #include <dt-bindings/interrupt-controller/irq.h>
> + spi {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + icm45605@0 {
> + compatible = "invensense,icm45605";
> + reg = <0>;
> + spi-max-frequency = <24000000>;
> + interrupt-parent = <&gpio1>;
> + interrupt-names = "INT1";
> + interrupts = <6 IRQ_TYPE_EDGE_RAISING>;
> + vdd-supply = <&vdd>;
> + vddio-supply = <&vddio>;
> + mount-matrix = "1", "0", "0",
> + "0", "1", "0",
> + "0", "0", "1";
> + };
> + };
> + - |
> + #include <dt-bindings/gpio/gpio.h>
> + #include <dt-bindings/interrupt-controller/irq.h>
> + i3c {
> + #address-cells = <3>;
> + #size-cells = <0>;
> +
> + icm45600@68,46A00000011 {
> + compatible = "invensense,icm45600";
> + reg = <0x68 0x46A 0x84>;
> + interrupt-parent = <&gpio1>;
> + interrupt-names = "INT1";
> + interrupts = <5 IRQ_TYPE_EDGE_RISING>;
> + vdd-supply = <&vdd>;
> + vddio-supply = <&vddio>;
> + mount-matrix = "1", "0", "0",
> + "0", "1", "0",
> + "0", "0", "1";
> + };
> + };
>
> --
> 2.34.1
>
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