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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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e4cfeca8f8
The adis16460 device requires a stall time between SPI transactions (during which the chip select is inactive), with a minimum value equal to 16 microseconds. This commit adds 'spi-cs-inactive-delay-ns' property, which should indicate the stall time between consecutive SPI transactions. The specified minimum time may not be sufficient for all configurations. Signed-off-by: Ramona Gradinariu <ramona.gradinariu@analog.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20231027140358.328699-4-ramona.gradinariu@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
63 lines
1.2 KiB
YAML
63 lines
1.2 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/imu/adi,adis16460.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Analog Devices ADIS16460 and similar IMUs
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maintainers:
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- Dragos Bogdan <dragos.bogdan@analog.com>
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description: |
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Analog Devices ADIS16460 and similar IMUs
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https://www.analog.com/media/en/technical-documentation/data-sheets/ADIS16460.pdf
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properties:
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compatible:
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enum:
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- adi,adis16460
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reg:
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maxItems: 1
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spi-cpha: true
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spi-cpol: true
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spi-cs-inactive-delay-ns:
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minimum: 16000
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default: 16000
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interrupts:
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maxItems: 1
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required:
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- compatible
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- reg
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- interrupts
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allOf:
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- $ref: /schemas/spi/spi-peripheral-props.yaml#
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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spi {
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#address-cells = <1>;
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#size-cells = <0>;
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imu@0 {
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compatible = "adi,adis16460";
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reg = <0>;
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spi-max-frequency = <5000000>;
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spi-cpol;
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spi-cpha;
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interrupt-parent = <&gpio0>;
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interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
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};
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};
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