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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/misc/lwn,bk4-spi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Liebherr's BK4 external SPI controller
maintainers:
- Lukasz Majewski <lukma@denx.de>
description: |
Liebherr's BK4 external SPI controller is a device which handles data
acquisition from compatible industrial peripherals.
The SPI is used for data and management purposes in both master and
slave modes.
allOf:
- $ref: /schemas/spi/spi-peripheral-props.yaml#
properties:
compatible:
const: lwn,bk4-spi
reg:
maxItems: 1
spi-max-frequency:
maximum: 30000000
fsl,spi-cs-sck-delay: true
fsl,spi-sck-cs-delay: true
required:
- compatible
- spi-max-frequency
additionalProperties: false
examples:
- |
spi {
#address-cells = <1>;
#size-cells = <0>;
spidev@0 {
compatible = "lwn,bk4-spi";
reg = <0>;
spi-max-frequency = <30000000>;
fsl,spi-cs-sck-delay = <200>;
fsl,spi-sck-cs-delay = <400>;
};
};
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