add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/drivers/video/rockchip/iep/iep_drv.c
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@@ -31,6 +31,7 @@
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 #include <linux/module.h>
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 #include <linux/pm_runtime.h>
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 #include <linux/rockchip/cpu.h>
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+#include <linux/iommu.h>
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 #include <asm/cacheflush.h>
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 #include "iep_drv.h"
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 #include "hw_iep_reg.h"
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@@ -870,54 +871,16 @@
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 	.fops  = &iep_fops,
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 };
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-static struct device* rockchip_get_sysmmu_device_by_compatible(
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-	const char *compt)
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-{
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-	struct device_node *dn = NULL;
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-	struct platform_device *pd = NULL;
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-	struct device *ret = NULL;
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-
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-	dn = of_find_compatible_node(NULL, NULL, compt);
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-	if (!dn) {
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-		printk("can't find device node %s \r\n", compt);
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-		return NULL;
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-	}
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-
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-	pd = of_find_device_by_node(dn);
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-	if (!pd) {
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-		printk("can't find platform device in device node %s \r\n",
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-			compt);
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-		return  NULL;
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-	}
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-	ret = &pd->dev;
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-
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-	return ret;
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-
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-}
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-#ifdef CONFIG_IOMMU_API
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-static inline void platform_set_sysmmu(struct device *iommu,
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-	struct device *dev)
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-{
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-	dev->archdata.iommu = iommu;
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-}
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-#else
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-static inline void platform_set_sysmmu(struct device *iommu,
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-	struct device *dev)
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-{
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-}
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-#endif
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-
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-static int iep_sysmmu_fault_handler(struct device *dev,
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-	enum rk_iommu_inttype itype,
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-	unsigned long pgtable_base,
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-	unsigned long fault_addr, unsigned int status)
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+static int iep_sysmmu_fault_handler(struct iommu_domain *domain,
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+				    struct device *iommu_dev,
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+				    unsigned long iova, int status, void *arg)
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 {
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 	struct iep_reg *reg = list_entry(iep_service.running.next,
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 		struct iep_reg, status_link);
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 	if (reg != NULL) {
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 		struct iep_mem_region *mem, *n;
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 		int i = 0;
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-		pr_info("iep, fault addr 0x%08x\n", (u32)fault_addr);
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+		pr_info("iep, fault addr 0x%08x\n", (u32)iova);
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 		list_for_each_entry_safe(mem, n,
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 			&reg->mem_region_list,
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 			reg_lnk) {
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@@ -944,7 +907,8 @@
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 	struct platform_device *sub_dev = NULL;
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 	struct device_node *sub_np = NULL;
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 	u32 iommu_en = 0;
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-	struct device *mmu_dev = NULL;
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+	struct iommu_domain *domain;
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+
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 	of_property_read_u32(np, "iommu_enabled", &iommu_en);
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 	data = devm_kzalloc(&pdev->dev, sizeof(*data),
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@@ -1081,21 +1045,10 @@
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 	if (sub_np) {
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 		sub_dev = of_find_device_by_node(sub_np);
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 		iep_service.iommu_dev = &sub_dev->dev;
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+		domain = iommu_get_domain_for_dev(&pdev->dev);
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+		iommu_set_fault_handler(domain, iep_sysmmu_fault_handler, data);
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 	}
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-	if (!iep_service.iommu_dev) {
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-		mmu_dev = rockchip_get_sysmmu_device_by_compatible(
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-			IEP_IOMMU_COMPATIBLE_NAME);
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-
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-		if (mmu_dev) {
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-			platform_set_sysmmu(mmu_dev, &pdev->dev);
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-		}
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-
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-		rockchip_iovmm_set_fault_handler(&pdev->dev,
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-						 iep_sysmmu_fault_handler);
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-
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-		iep_service.iommu_dev = mmu_dev;
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-	}
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 	of_property_read_u32(np, "allocator", (u32 *)&iep_service.alloc_type);
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 	iep_power_on();
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 	iep_service.iommu_info = iep_iommu_info_create(data->dev,
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@@ -1194,11 +1147,11 @@
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 	return single_open(file, proc_iep_show, NULL);
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 }
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-static const struct file_operations proc_iep_fops = {
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-	.open		= proc_iep_open,
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-	.read		= seq_read,
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-	.llseek 	= seq_lseek,
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-	.release	= single_release,
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+static const struct proc_ops proc_iep_fops = {
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+	.proc_open	= proc_iep_open,
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+	.proc_read	= seq_read,
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+	.proc_lseek	= seq_lseek,
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+	.proc_release	= single_release,
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 };
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 static int __init iep_proc_init(void)