dt-bindings: iommu: Add Allwinner H6 IOMMU bindings

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/iommu/allwinner,sun50i-h6-iommu.yaml#

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

title: Allwinner H6 IOMMU Device Tree Bindings

maintainers:

  - Chen-Yu Tsai <wens@csie.org>

  - Maxime Ripard <mripard@kernel.org>

properties:

  "#iommu-cells":

    const: 1

    description:

      The content of the cell is the master ID.

  compatible:

    const: allwinner,sun50i-h6-iommu

  reg:

    maxItems: 1

  interrupts:

    maxItems: 1

  clocks:

    maxItems: 1

  resets:

    maxItems: 1

required:

  - "#iommu-cells"

  - compatible

  - reg

  - interrupts

  - clocks

  - resets

additionalProperties: false

examples:

  - |

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

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

      #include <dt-bindings/clock/sun50i-h6-ccu.h>

      #include <dt-bindings/reset/sun50i-h6-ccu.h>

      iommu: iommu@30f0000 {

          compatible = "allwinner,sun50i-h6-iommu";

          reg = <0x030f0000 0x10000>;

          interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;

          clocks = <&ccu CLK_BUS_IOMMU>;

          resets = <&ccu RST_BUS_IOMMU>;

          #iommu-cells = <1>;

      };

...