ASoC: dt-bindings: Convert imx-audmux binding to json schema

Freescale Digital Audio Mux (AUDMUX) device

Required properties:

  - compatible		: "fsl,imx21-audmux" for AUDMUX version firstly used

			  on i.MX21, or "fsl,imx31-audmux" for the version

			  firstly used on i.MX31.

  - reg			: Should contain AUDMUX registers location and length.

An initial configuration can be setup using child nodes.

Required properties of optional child nodes:

  - fsl,audmux-port	: Integer of the audmux port that is configured by this

			  child node.

  - fsl,port-config	: List of configuration options for the specific port.

			  For imx31-audmux and above, it is a list of tuples

			  <ptcr pdcr>. For imx21-audmux it is a list of pcr

			  values.

Example:

audmux@21d8000 {

	compatible = "fsl,imx6q-audmux", "fsl,imx31-audmux";

	reg = <0x021d8000 0x4000>;

};

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/sound/imx-audmux.yaml#

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

title: Freescale Digital Audio Mux device

maintainers:

  - Oleksij Rempel <o.rempel@pengutronix.de>

properties:

  compatible:

    oneOf:

      - items:

          - enum:

              - fsl,imx27-audmux

          - const: fsl,imx21-audmux

      - items:

          - enum:

              - fsl,imx25-audmux

              - fsl,imx35-audmux

              - fsl,imx50-audmux

              - fsl,imx51-audmux

              - fsl,imx53-audmux

              - fsl,imx6q-audmux

              - fsl,imx6sl-audmux

              - fsl,imx6sll-audmux

              - fsl,imx6sx-audmux

          - const: fsl,imx31-audmux

  reg:

    maxItems: 1

  clocks:

    maxItems: 1

  clock-names:

    items:

      - const: audmux

patternProperties:

  "^mux-[0-9a-z]*$":

    type: object

    properties:

      fsl,audmux-port:

        $ref: /schemas/types.yaml#/definitions/uint32

        description: |

          Integer of the audmux port that is configured by this child node

      fsl,port-config:

        $ref: /schemas/types.yaml#/definitions/uint32-array

        description: |

          List of configuration options for the specific port.

          For imx31-audmux and above, it is a list of tuples ptcr pdcr.

          For imx21-audmux it is a list of pcr values.

    required:

      - fsl,audmux-port

      - fsl,port-config

    additionalProperties: false

required:

  - compatible

  - reg

additionalProperties: false

examples:

  - |

    audmux@21d8000 {

        compatible = "fsl,imx6q-audmux", "fsl,imx31-audmux";

        reg = <0x021d8000 0x4000>;

    };

  - |

    audmux@10016000 {

        compatible = "fsl,imx27-audmux", "fsl,imx21-audmux";

        reg = <0x10016000 0x1000>;

        clocks = <&clks 1>;

        clock-names = "audmux";

        mux-ssi0 {

            fsl,audmux-port = <0>;

            fsl,port-config = <0xcb205000>;

        };

        mux-pins4 {

            fsl,audmux-port = <2>;

            fsl,port-config = <0x00001000>;

        };

    };

  - |

    #include <dt-bindings/sound/fsl-imx-audmux.h>

    audmux@21d8000 {

        compatible = "fsl,imx6q-audmux", "fsl,imx31-audmux";

        reg = <0x021d8000 0x4000>;

        pinctrl-names = "default";

        pinctrl-0 = <&pinctrl_audmux>;

        mux-ssi1 {

            fsl,audmux-port = <0>;

            fsl,port-config = <

                IMX_AUDMUX_V2_PTCR_SYN		0

                IMX_AUDMUX_V2_PTCR_TFSEL(2)	0

                IMX_AUDMUX_V2_PTCR_TCSEL(2)	0

                IMX_AUDMUX_V2_PTCR_TFSDIR	0

                IMX_AUDMUX_V2_PTCR_TCLKDIR      IMX_AUDMUX_V2_PDCR_RXDSEL(2)

              >;

        };

        mux-pins3 {

            fsl,audmux-port = <2>;

            fsl,port-config = <

                IMX_AUDMUX_V2_PTCR_SYN          IMX_AUDMUX_V2_PDCR_RXDSEL(0)

                0                               IMX_AUDMUX_V2_PDCR_TXRXEN

              >;

        };

    };