xref: /freebsd/sys/contrib/device-tree/Bindings/spi/cirrus,ep9301-spi.yaml (revision b2d2a78ad80ec68d4a17f5aef97d21686cb1e29b)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/cirrus,ep9301-spi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: EP93xx SoC SPI controller

maintainers:
  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
  - Nikita Shubin <nikita.shubin@maquefel.me>

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

properties:
  compatible:
    oneOf:
      - const: cirrus,ep9301-spi
      - items:
          - enum:
              - cirrus,ep9302-spi
              - cirrus,ep9307-spi
              - cirrus,ep9312-spi
              - cirrus,ep9315-spi
          - const: cirrus,ep9301-spi

  reg:
    items:
      - description: SPI registers region

  interrupts:
    maxItems: 1

  clocks:
    items:
      - description: SPI Controller reference clock source

  dmas:
    items:
      - description: rx DMA channel
      - description: tx DMA channel

  dma-names:
    items:
      - const: rx
      - const: tx

required:
  - compatible
  - reg
  - interrupts
  - clocks

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/gpio/gpio.h>
    #include <dt-bindings/clock/cirrus,ep9301-syscon.h>
    spi@808a0000 {
        compatible = "cirrus,ep9301-spi";
        reg = <0x808a0000 0x18>;
        interrupt-parent = <&vic1>;
        interrupts = <21>;
        clocks = <&syscon EP93XX_CLK_SPI>;
        dmas = <&dma1 10 2>, <&dma1 10 1>;
        dma-names = "rx", "tx";
        cs-gpios = <&gpio5 2 GPIO_ACTIVE_HIGH>;
    };