iommu/mediatek: Improve comment for the current region/bank

	char			*pericfg_comp_str;

	struct list_head	*hw_list;

	/*

	 * The IOMMU HW may support 16GB iova. In order to balance the IOVA ranges,

	 * different masters will be put in different iova ranges, for example vcodec

	 * is in 4G-8G and cam is in 8G-12G. Meanwhile, some masters may have the

	 * special IOVA range requirement, like CCU can only support the address

	 * 0x40000000-0x44000000.

	 * Here list the iova ranges this SoC supports and which larbs/ports are in

	 * which region.

	 *

	 * 16GB iova all use one pgtable, but each a region is a iommu group.

	 */

	struct {

		unsigned int	iova_region_nr;

		const struct mtk_iommu_iova_region	*iova_region;

	};

	/*

	 * The IOMMU HW may have 5 banks. Each bank has a independent pgtable.

	 * Here list how many banks this SoC supports/enables and which ports are in which bank.

	 */

	struct {

		u8		banks_num;

		bool		banks_enable[MTK_IOMMU_BANK_MAX];

		unsigned int	banks_portmsk[MTK_IOMMU_BANK_MAX];

	};

	unsigned char       larbid_remap[MTK_LARB_COM_MAX][MTK_LARB_SUBCOM_MAX];

};