Commit 7767cd04 authored by Eddie James's avatar Eddie James Committed by Rob Herring (Arm)
Browse files

dt-bindings: fsi: ast2600-fsi-master: Convert to json-schema 



Convert to json-schema for the AST2600 FSI master documentation.

Signed-off-by: default avatarEddie James <eajames@linux.ibm.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240522192524.3286237-9-eajames@linux.ibm.com


Signed-off-by: default avatarRob Herring (Arm) <robh@kernel.org>
parent 07f8b912

Documentation/devicetree/bindings/fsi/aspeed,ast2600-fsi-master.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/fsi/aspeed,ast2600-fsi-master.yaml#

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



title: Aspeed FSI master



maintainers:

  - Eddie James <eajames@linux.ibm.com>



description:

  The AST2600 and later contain two identical FSI masters. They share a

  clock and have a separate interrupt line and output pins.



properties:

  compatible:

    enum:

      - aspeed,ast2600-fsi-master



  reg:

    maxItems: 1



  clocks:

    maxItems: 1



  cfam-reset-gpios:

    maxItems: 1

    description:

      Output GPIO pin for CFAM reset



  fsi-routing-gpios:

    maxItems: 1

    description:

      Output GPIO pin for setting the FSI mux (internal or cabled)



  fsi-mux-gpios:

    maxItems: 1

    description:

      Input GPIO pin for detecting the desired FSI mux state



  interrupts:

    maxItems: 1



required:

  - compatible

  - reg

  - clocks

  - interrupts



allOf:

  - $ref: fsi-controller.yaml#



unevaluatedProperties: false



examples:

  - |

    #include <dt-bindings/clock/ast2600-clock.h>

    #include <dt-bindings/gpio/aspeed-gpio.h>

    #include <dt-bindings/interrupt-controller/arm-gic.h>

    fsi-master@1e79b000 {

        compatible = "aspeed,ast2600-fsi-master";

        reg = <0x1e79b000 0x94>;

        #address-cells = <2>;

        #size-cells = <0>;

        interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;

        pinctrl-names = "default";

        pinctrl-0 = <&pinctrl_fsi1_default>;

        clocks = <&syscon ASPEED_CLK_GATE_FSICLK>;

        fsi-routing-gpios = <&gpio0 ASPEED_GPIO(Q, 7) GPIO_ACTIVE_HIGH>;

        fsi-mux-gpios = <&gpio0 ASPEED_GPIO(B, 0) GPIO_ACTIVE_HIGH>;

        cfam-reset-gpios = <&gpio0 ASPEED_GPIO(Q, 0) GPIO_ACTIVE_LOW>;



        cfam@0,0 {

            reg = <0 0>;

            #address-cells = <1>;

            #size-cells = <1>;

            chip-id = <0>;

        };

    };

Documentation/devicetree/bindings/fsi/fsi-master-aspeed.txt

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Device-tree bindings for AST2600 FSI master

-------------------------------------------



The AST2600 contains two identical FSI masters. They share a clock and have a

separate interrupt line and output pins.



Required properties:

 - compatible: "aspeed,ast2600-fsi-master"

 - reg: base address and length

 - clocks: phandle and clock number

 - interrupts: platform dependent interrupt description

 - pinctrl-0: phandle to pinctrl node

 - pinctrl-names: pinctrl state



Optional properties:

 - cfam-reset-gpios: GPIO for CFAM reset



 - fsi-routing-gpios: GPIO for setting the FSI mux (internal or cabled)

 - fsi-mux-gpios: GPIO for detecting the desired FSI mux state





Examples:



    fsi-master {

        compatible = "aspeed,ast2600-fsi-master", "fsi-master";

        reg = <0x1e79b000 0x94>;

	interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_fsi1_default>;

	clocks = <&syscon ASPEED_CLK_GATE_FSICLK>;



	fsi-routing-gpios = <&gpio0 ASPEED_GPIO(Q, 7) GPIO_ACTIVE_HIGH>;

	fsi-mux-gpios = <&gpio0 ASPEED_GPIO(B, 0) GPIO_ACTIVE_HIGH>;



	cfam-reset-gpios = <&gpio0 ASPEED_GPIO(Q, 0) GPIO_ACTIVE_LOW>;

    };