iommu/mediatek: Separate mtk_iommu_data for v1 and v2

Prepare for adding the structure "mtk_iommu_bank_data". No functional
change. The mtk_iommu_domain in v1 and v2 are different, we could not add
current data as bank[0] in v1 simplistically.

Currently we have no plan to add new SoC for v1, in order to avoid affect
v1 when we add many new features for v2, I totally separate v1 and v2 in
this patch, there are many structures only for v2.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20220503071427.2285-27-yong.wu@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

1 files changed, 29 insertions, 0 deletions

diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index ecff800656e6..6d1c09c91e1f 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c
@@ -87,6 +87,21 @@
  */
 #define M2701_IOMMU_PGT_SIZE			SZ_4M
 
+struct mtk_iommu_data {
+	void __iomem			*base;
+	int				irq;
+	struct device			*dev;
+	struct clk			*bclk;
+	phys_addr_t			protect_base; /* protect memory base */
+	struct mtk_iommu_domain		*m4u_dom;
+
+	struct iommu_device		iommu;
+	struct dma_iommu_mapping	*mapping;
+	struct mtk_smi_larb_iommu	larb_imu[MTK_LARB_NR_MAX];
+
+	struct mtk_iommu_suspend_reg	reg;
+};
+
 struct mtk_iommu_domain {
 	spinlock_t			pgtlock; /* lock for page table */
 	struct iommu_domain		domain;
@@ -95,6 +110,20 @@ struct mtk_iommu_domain {
 	struct mtk_iommu_data		*data;
 };
 
+static int mtk_iommu_bind(struct device *dev)
+{
+	struct mtk_iommu_data *data = dev_get_drvdata(dev);
+
+	return component_bind_all(dev, &data->larb_imu);
+}
+
+static void mtk_iommu_unbind(struct device *dev)
+{
+	struct mtk_iommu_data *data = dev_get_drvdata(dev);
+
+	component_unbind_all(dev, &data->larb_imu);
+}
+
 static struct mtk_iommu_domain *to_mtk_domain(struct iommu_domain *dom)
 {
 	return container_of(dom, struct mtk_iommu_domain, domain);