Documentation/devicetree/bindings/spi/spi-xilinx.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/spi-xilinx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Xilinx SPI controller Device Tree Bindings

maintainers:
  - Michal Simek <michal.simek@xilinx.com>

allOf:
  - $ref: "spi-controller.yaml#"

properties:
  compatible:
    enum:
      - xlnx,xps-spi-2.00.a
      - xlnx,xps-spi-2.00.b
      - xlnx,axi-quad-spi-1.00.a

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  xlnx,num-ss-bits:
    description: Number of chip selects used.
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 1
    maximum: 32

  xlnx,num-transfer-bits:
    description: Number of bits per transfer. This will be 8 if not specified.
    $ref: /schemas/types.yaml#/definitions/uint32
    enum: [8, 16, 32]
    default: 8

required:
  - compatible
  - reg
  - interrupts

unevaluatedProperties: false

examples:
  - |
    spi0: spi@41e00000 {
      compatible = "xlnx,xps-spi-2.00.a";
      interrupt-parent = <&intc>;
      interrupts = <0 31 1>;
      reg = <0x41e00000 0x10000>;
      xlnx,num-ss-bits = <0x1>;
      xlnx,num-transfer-bits = <32>;
    };
...