Merge branches 'iommu/fixes', 'arm/renesas', 'arm/mediatek', 'arm/tegra',...

			By default, super page will be supported if Intel IOMMU

			has the capability. With this option, super page will

			not be supported.

		ecs_off [Default Off]

			By default, extended context tables will be supported if

			the hardware advertises that it has support both for the

			extended tables themselves, and also PASID support. With

			this option set, extended tables will not be used even

			on hardware which claims to support them.

		sm_off [Default Off]

			By default, scalable mode will be supported if the

			hardware advertises that it has support for the scalable

			mode translation. With this option set, scalable mode

			will not be used even on hardware which claims to support

			it.

		tboot_noforce [Default Off]

			Do not force the Intel IOMMU enabled under tboot.

			By default, tboot will force Intel IOMMU on, which

                        "arm,mmu-401"

                        "arm,mmu-500"

                        "cavium,smmu-v2"

                        "qcom,smmu-v2"

                  depending on the particular implementation and/or the

                  version of the architecture implemented.

                  Qcom SoCs must contain, as below, SoC-specific compatibles

                  along with "qcom,smmu-v2":

                  "qcom,msm8996-smmu-v2", "qcom,smmu-v2",

                  "qcom,sdm845-smmu-v2", "qcom,smmu-v2".

                  Qcom SoCs implementing "arm,mmu-500" must also include,

                  as below, SoC-specific compatibles:

                  "qcom,sdm845-smmu-500", "arm,mmu-500"

- reg           : Base address and size of the SMMU.

- #global-interrupts : The number of global interrupts exposed by the

                  or using stream matching with #iommu-cells = <2>, and

                  may be ignored if present in such cases.

- clock-names:    List of the names of clocks input to the device. The

                  required list depends on particular implementation and

                  is as follows:

                  - for "qcom,smmu-v2":

                    - "bus": clock required for downstream bus access and

                             for the smmu ptw,

                    - "iface": clock required to access smmu's registers

                               through the TCU's programming interface.

                  - unspecified for other implementations.

- clocks:         Specifiers for all clocks listed in the clock-names property,

                  as per generic clock bindings.

- power-domains:  Specifiers for power domains required to be powered on for

                  the SMMU to operate, as per generic power domain bindings.

** Deprecated properties:

- mmu-masters (deprecated in favour of the generic "iommus" binding) :

                iommu-map = <0 &smmu3 0 0x400>;

                ...

        };

	/* Qcom's arm,smmu-v2 implementation */

	smmu4: iommu@d00000 {

		compatible = "qcom,msm8996-smmu-v2", "qcom,smmu-v2";

		reg = <0xd00000 0x10000>;

		#global-interrupts = <1>;

		interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,

			     <GIC_SPI 320 IRQ_TYPE_LEVEL_HIGH>,

			     <GIC_SPI 321 IRQ_TYPE_LEVEL_HIGH>;

		#iommu-cells = <1>;

		power-domains = <&mmcc MDSS_GDSC>;

		clocks = <&mmcc SMMU_MDP_AXI_CLK>,

			 <&mmcc SMMU_MDP_AHB_CLK>;

		clock-names = "bus", "iface";

	};

    - "renesas,ipmmu-r8a7743" for the R8A7743 (RZ/G1M) IPMMU.

    - "renesas,ipmmu-r8a7744" for the R8A7744 (RZ/G1N) IPMMU.

    - "renesas,ipmmu-r8a7745" for the R8A7745 (RZ/G1E) IPMMU.

    - "renesas,ipmmu-r8a774a1" for the R8A774A1 (RZ/G2M) IPMMU.

    - "renesas,ipmmu-r8a774c0" for the R8A774C0 (RZ/G2E) IPMMU.

    - "renesas,ipmmu-r8a7790" for the R8A7790 (R-Car H2) IPMMU.

    - "renesas,ipmmu-r8a7791" for the R8A7791 (R-Car M2-W) IPMMU.

    - "renesas,ipmmu-r8a7793" for the R8A7793 (R-Car M2-N) IPMMU.

	if (!dev)

		return 0;

	if (dev->iommu_group) {

	if (device_iommu_mapped(dev)) {

		*ppdev = pdev;

		return 1;

	}

	if (!device_is_registered(dev))

		return -ENOENT;

	if (dev->iommu_group) {

	if (device_iommu_mapped(dev)) {

		pr_debug("%s: Skipping device %s with iommu group %d\n",

			 __func__, dev_name(dev),

			 iommu_group_id(dev->iommu_group));

	 * and we needn't detach them from the associated

	 * IOMMU groups

	 */

	if (!dev->iommu_group) {

	if (!device_iommu_mapped(dev)) {

		pr_debug("iommu_tce: skipping device %s with no tbl\n",

			 dev_name(dev));

		return;

        case BUS_NOTIFY_ADD_DEVICE:

                return iommu_add_device(dev);

        case BUS_NOTIFY_DEL_DEVICE:

                if (dev->iommu_group)

                if (device_iommu_mapped(dev))

                        iommu_del_device(dev);

                return 0;

        default: