Unverified Commit ff4daa7d authored by Paul Cercueil's avatar Paul Cercueil Committed by Mark Brown
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dt-bindings: spi: Document Ingenic SPI controller bindings 



Add a documentation file to describe the Device Tree bindings for the
SPI controller found in Ingenic SoCs.

Signed-off-by: default avatarPaul Cercueil <paul@crapouillou.net>
Signed-off-by: default avatarArtur Rojek <contact@artur-rojek.eu>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210830230139.21476-2-contact@artur-rojek.eu


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent becbca18

Documentation/devicetree/bindings/spi/ingenic,spi.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/spi/ingenic,spi.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Ingenic SoCs SPI controller devicetree bindings



maintainers:

  - Artur Rojek <contact@artur-rojek.eu>

  - Paul Cercueil <paul@crapouillou.net>



allOf:

  - $ref: /schemas/spi/spi-controller.yaml#



properties:

  compatible:

    oneOf:

      - enum:

          - ingenic,jz4750-spi

          - ingenic,jz4780-spi

      - items:

          - enum:

              - ingenic,jz4760-spi

              - ingenic,jz4770-spi

          - const: ingenic,jz4750-spi



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  clocks:

    maxItems: 1



  dmas:

    maxItems: 2

    minItems: 2



  dma-names:

    items:

      - const: rx

      - const: tx



required:

  - compatible

  - reg

  - interrupts

  - clocks

  - dmas

  - dma-names



unevaluatedProperties: false



examples:

  - |

    #include <dt-bindings/clock/jz4770-cgu.h>

    spi@10043000 {

      compatible = "ingenic,jz4770-spi", "ingenic,jz4750-spi";

      reg = <0x10043000 0x1c>;

      #address-cells = <1>;

      #size-cells = <0>;



      interrupt-parent = <&intc>;

      interrupts = <8>;



      clocks = <&cgu JZ4770_CLK_SSI0>;



      dmas = <&dmac1 23 0xffffffff>, <&dmac1 22 0xffffffff>;

      dma-names = "rx", "tx";

    };