Commit 7882d822 authored by Lubomir Rintel's avatar Lubomir Rintel Committed by Rob Herring
Browse files

dt-bindings: spi: Convert spi-pxa2xx to json-schema 



A straightforward conversion of the the spi-pxa2xx binding to DT schema
format using json-schema.

Signed-off-by: default avatarLubomir Rintel <lkundrak@v3.sk>
[robh: add unevaluatedProperties]
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 3591105b

Documentation/devicetree/bindings/spi/marvell,mmp2-ssp.yaml

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

# Copyright 2019,2020 Lubomir Rintel <lkundrak@v3.sk>

%YAML 1.2

---

$id: http://devicetree.org/schemas/spi/marvell,mmp2-ssp.yaml#

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



title: PXA2xx SSP SPI Controller bindings



maintainers:

  - Lubomir Rintel <lkundrak@v3.sk>



allOf:

  - $ref: spi-controller.yaml#



properties:

  compatible:

    const: marvell,mmp2-ssp



  interrupts:

    maxItems: 1



  reg:

    maxItems: 1



  clocks:

    maxItems: 1



  ready-gpios:

    description: |

      GPIO used to signal a SPI master that the FIFO is filled and we're

      ready to service a transfer. Only useful in slave mode.

    maxItems: 1



required:

  - compatible

  - reg

  - interrupts

  - clocks



dependencies:

  ready-gpios: [ spi-slave ]



unevaluatedProperties: false



examples:

  - |

    #include <dt-bindings/clock/marvell,mmp2.h>

    spi@d4035000 {

        compatible = "marvell,mmp2-ssp";

        #address-cells = <1>;

        #size-cells = <0>;

        reg = <0xd4035000 0x1000>;

        clocks = <&soc_clocks MMP2_CLK_SSP0>;

        interrupts = <0>;

    };



...

Documentation/devicetree/bindings/spi/spi-pxa2xx.txt

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PXA2xx SSP SPI Controller



Required properties:

- compatible: Must be "marvell,mmp2-ssp".

- reg: Offset and length of the device's register set.

- interrupts: Should be the interrupt number.

- clocks: Should contain a single entry describing the clock input.

- #address-cells:  Number of cells required to define a chip select address.

- #size-cells: Should be zero.



Optional properties:

- cs-gpios: list of GPIO chip selects. See the SPI bus bindings,

  Documentation/devicetree/bindings/spi/spi-bus.txt

- spi-slave: Empty property indicating the SPI controller is used in slave mode.

- ready-gpios: GPIO used to signal a SPI master that the FIFO is filled

  and we're ready to service a transfer. Only useful in slave mode.



Child nodes represent devices on the SPI bus

  See ../spi/spi-bus.txt



Example:

	ssp1: spi@d4035000 {

		compatible = "marvell,mmp2-ssp";

		reg = <0xd4035000 0x1000>;

		clocks = <&soc_clocks MMP2_CLK_SSP0>;

		interrupts = <0>;

	};