Unverified Commit 048f71f7 authored by Sergio Paracuellos's avatar Sergio Paracuellos Committed by Mark Brown
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spi: migrate mt7621 text bindings to YAML 



SoC MT7621 SPI bindings used text format, so migrate them to YAML.
There are some additions to the binding that were not in the original
file. This binding is used in MT7621 and MT7628a Ralink SoCs. To
properly match both dts nodes in tree we need to add to the schema
'clocks', 'clock-names' and 'reset-names'. Both 'clock-names' and
'reset-names' use 'spi' as string so maintain that as const in
the schema.

Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarSergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20220927031929.807070-1-sergio.paracuellos@gmail.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent aa69dc65

Documentation/devicetree/bindings/spi/ralink,mt7621-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/ralink,mt7621-spi.yaml#

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



maintainers:

  - Sergio Paracuellos <sergio.paracuellos@gmail.com>



title: Mediatek MT7621/MT7628 SPI controller



allOf:

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



properties:

  compatible:

    const: ralink,mt7621-spi



  reg:

    maxItems: 1



  clocks:

    maxItems: 1



  clock-names:

    const: spi



  resets:

    maxItems: 1



  reset-names:

    const: spi



required:

  - compatible

  - reg

  - resets

  - "#address-cells"

  - "#size-cells"



unevaluatedProperties: false



examples:

  - |

    #include <dt-bindings/clock/mt7621-clk.h>

    #include <dt-bindings/reset/mt7621-reset.h>



    spi@b00 {

      compatible = "ralink,mt7621-spi";

      reg = <0xb00 0x100>;

      clocks = <&sysc MT7621_CLK_SPI>;

      clock-names = "spi";

      resets = <&sysc MT7621_RST_SPI>;

      reset-names = "spi";



      #address-cells = <1>;

      #size-cells = <0>;



      pinctrl-names = "default";

      pinctrl-0 = <&spi_pins>;

    };

Documentation/devicetree/bindings/spi/spi-mt7621.txt

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Binding for MTK SPI controller (MT7621 MIPS)



Required properties:

- compatible: Should be one of the following:

  - "ralink,mt7621-spi": for mt7621/mt7628/mt7688 platforms

- #address-cells: should be 1.

- #size-cells: should be 0.

- reg: Address and length of the register set for the device

- resets: phandle to the reset controller asserting this device in

          reset

  See ../reset/reset.txt for details.



Optional properties:

- cs-gpios: see spi-bus.txt.



Example:



- SoC Specific Portion:

spi0: spi@b00 {

	compatible = "ralink,mt7621-spi";

	reg = <0xb00 0x100>;

	#address-cells = <1>;

	#size-cells = <0>;

	resets = <&rstctrl 18>;

	reset-names = "spi";

};