[PATCH v2 2/7] drm/rockchip: Use common IOMMU API to attach devices

From: Shunqian Zheng Rockchip DRM used the arm special API, arm_iommu_*(), to attach iommu for ARM32 SoCs. This patch convert to common iommu API so it would support ARM64 like RK3399. Since previous patch added support for direct IOMMU address space management, there is

[PATCH v2 2/7] drm/rockchip: Use common IOMMU API to attach devices

From: Shunqian Zheng Rockchip DRM used the arm special API, arm_iommu_*(), to attach iommu for ARM32 SoCs. This patch convert to common iommu API so it would support ARM64 like RK3399. Since previous patch added support for direct IOMMU address space management, there is no need to use DMA API