dt-bindings: ufs: cdns,ufshc: convert to dtschema

* Cadence Universal Flash Storage (UFS) Controller

UFS nodes are defined to describe on-chip UFS host controllers.

Each UFS controller instance should have its own node.

Please see the ufshcd-pltfrm.txt for a list of all available properties.

Required properties:

- compatible	: Compatible list, contains one of the following controllers:

			"cdns,ufshc" - Generic CDNS HCI,

			"cdns,ufshc-m31-16nm" - CDNS UFS HC + M31 16nm PHY

		  complemented with the JEDEC version:

			"jedec,ufs-2.0"

- reg		: Address and length of the UFS register set.

- interrupts	: One interrupt mapping.

- freq-table-hz	: Clock frequency table.

		  See the ufshcd-pltfrm.txt for details.

- clocks	: List of phandle and clock specifier pairs.

- clock-names	: List of clock input name strings sorted in the same

		  order as the clocks property. "core_clk" is mandatory.

		  Depending on a type of a PHY,

		  the "phy_clk" clock can also be added, if needed.

Example:

	ufs@fd030000 {

		compatible = "cdns,ufshc", "jedec,ufs-2.0";

		reg = <0xfd030000 0x10000>;

		interrupts = <0 1 IRQ_TYPE_LEVEL_HIGH>;

		freq-table-hz = <0 0>, <0 0>;

		clocks = <&ufs_core_clk>, <&ufs_phy_clk>;

		clock-names = "core_clk", "phy_clk";

	};

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/ufs/cdns,ufshc.yaml#

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

title: Cadence Universal Flash Storage (UFS) Controller

maintainers:

  - Jan Kotas <jank@cadence.com>

# Select only our matches, not all jedec,ufs-2.0

select:

  properties:

    compatible:

      contains:

        enum:

          - cdns,ufshc

          - cdns,ufshc-m31-16nm

  required:

    - compatible

allOf:

  - $ref: ufs-common.yaml

properties:

  compatible:

    items:

      - enum:

          - cdns,ufshc

            # CDNS UFS HC + M31 16nm PHY

          - cdns,ufshc-m31-16nm

      - const: jedec,ufs-2.0

  clocks:

    minItems: 1

    maxItems: 3

  clock-names:

    minItems: 1

    items:

      - const: core_clk

      - const: phy_clk

      - const: ref_clk

  reg:

    maxItems: 1

required:

  - compatible

  - clocks

  - clock-names

  - reg

unevaluatedProperties: false

examples:

  - |

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

    ufs@fd030000 {

        compatible = "cdns,ufshc", "jedec,ufs-2.0";

        reg = <0xfd030000 0x10000>;

        interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;

        freq-table-hz = <0 0>, <0 0>;

        clocks = <&ufs_core_clk>, <&ufs_phy_clk>;

        clock-names = "core_clk", "phy_clk";

    };

patternProperties:

patternProperties:

  "^ufs@[0-9a-f]+$":

  "^ufs@[0-9a-f]+$":

    type: object

    $ref: cdns,ufshc.yaml

    description: |

    description: |

      Cadence UFS controller node must be the child node. Refer

      Cadence UFS controller node must be the child node.

      Documentation/devicetree/bindings/ufs/cdns,ufshc.txt for binding

    unevaluatedProperties: false

      documentation of child node

additionalProperties: false

additionalProperties: false