fix derps

Change-Id: I327cecbd3159621b7655f51033f14f87589c03ed

arch/arm/mach-msm/iommu_domains.c

@@ -22,6 +22,7 @@
 #include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/idr.h>
+#include <linux/err.h>
 #include <asm/sizes.h>
 #include <asm/page.h>
 #include <mach/iommu.h>
@@ -454,12 +455,11 @@ int msm_register_domain(struct msm_iova_layout *layout)
 	if (data->domain_num < 0)
 		goto free_pools;
 
-	data->domain = iommu_domain_alloc(bus, layout->domain_flags);
+	data->domain = iommu_domain_alloc(&platform_bus_type,
+					  layout->domain_flags);
 	if (!data->domain)
 		goto free_domain_num;
 
-	msm_iommu_set_client_name(data->domain, layout->client_name);
-
 	add_domain(data);
 
 	return data->domain_num;
@@ -508,171 +508,6 @@ int msm_unregister_domain(struct iommu_domain *domain)
 }
 EXPORT_SYMBOL(msm_unregister_domain);
 
-static int find_and_add_contexts(struct iommu_group *group,
-				 const struct device_node *node,
-				 unsigned int num_contexts)
-{
-	unsigned int i;
-	struct device *ctx;
-	const char *name;
-	struct device_node *ctx_node;
-	int ret_val = 0;
-
-	for (i = 0; i < num_contexts; ++i) {
-		ctx_node = of_parse_phandle((struct device_node *) node,
-					    "qcom,iommu-contexts", i);
-		if (!ctx_node) {
-			pr_err("Unable to parse phandle #%u\n", i);
-			ret_val = -EINVAL;
-			goto out;
-		}
-		if (of_property_read_string(ctx_node, "label", &name)) {
-			pr_err("Could not find label property\n");
-			ret_val = -EINVAL;
-			goto out;
-		}
-		ctx = msm_iommu_get_ctx(name);
-		if (!ctx) {
-			pr_err("Unable to find context %s\n", name);
-			ret_val = -EINVAL;
-			goto out;
-		}
-		iommu_group_add_device(group, ctx);
-	}
-out:
-	return ret_val;
-}
-
-static int create_and_add_domain(struct iommu_group *group,
-				 struct device_node const *node,
-				 char const *name)
-{
-	unsigned int ret_val = 0;
-	unsigned int i, j;
-	struct msm_iova_layout l;
-	struct msm_iova_partition *part = 0;
-	struct iommu_domain *domain = 0;
-	unsigned int *addr_array;
-	unsigned int array_size;
-	int domain_no;
-	int secure_domain;
-	int l2_redirect;
-
-	if (of_get_property(node, "qcom,virtual-addr-pool", &array_size)) {
-		l.npartitions = array_size / sizeof(unsigned int) / 2;
-		part = kmalloc(
-			sizeof(struct msm_iova_partition) * l.npartitions,
-			       GFP_KERNEL);
-		if (!part) {
-			pr_err("%s: could not allocate space for partition",
-				__func__);
-			ret_val = -ENOMEM;
-			goto out;
-		}
-		addr_array = kmalloc(array_size, GFP_KERNEL);
-		if (!addr_array) {
-			pr_err("%s: could not allocate space for partition",
-				__func__);
-			ret_val = -ENOMEM;
-			goto free_mem;
-		}
-
-		ret_val = of_property_read_u32_array(node,
-					"qcom,virtual-addr-pool",
-					addr_array,
-					array_size/sizeof(unsigned int));
-		if (ret_val) {
-			ret_val = -EINVAL;
-			goto free_mem;
-		}
-
-		for (i = 0, j = 0; j < l.npartitions * 2; i++, j += 2) {
-			part[i].start = addr_array[j];
-			part[i].size = addr_array[j+1];
-		}
-	} else {
-		l.npartitions = 1;
-		part = kmalloc(
-			sizeof(struct msm_iova_partition) * l.npartitions,
-			       GFP_KERNEL);
-		if (!part) {
-			pr_err("%s: could not allocate space for partition",
-				__func__);
-			ret_val = -ENOMEM;
-			goto out;
-		}
-		part[0].start = 0x0;
-		part[0].size = 0xFFFFFFFF;
-	}
-
-	l.client_name = name;
-	l.partitions = part;
-
-	secure_domain = of_property_read_bool(node, "qcom,secure-domain");
-	l.is_secure = (secure_domain) ? MSM_IOMMU_DOMAIN_SECURE : 0;
-
-	l2_redirect = of_property_read_bool(node, "qcom,l2-redirect");
-	l.domain_flags = (l2_redirect) ? MSM_IOMMU_DOMAIN_PT_CACHEABLE : 0;
-
-	domain_no = msm_register_domain(&l);
-	if (domain_no >= 0)
-		domain = msm_get_iommu_domain(domain_no);
-	else
-		ret_val = domain_no;
-
-	iommu_group_set_iommudata(group, domain, NULL);
-
-free_mem:
-	kfree(part);
-out:
-	return ret_val;
-}
-
-static int iommu_domain_parse_dt(const struct device_node *dt_node)
-{
-	struct device_node *node;
-	int sz;
-	unsigned int num_contexts;
-	int ret_val = 0;
-	struct iommu_group *group = 0;
-	const char *name;
-
-	for_each_child_of_node(dt_node, node) {
-		group = iommu_group_alloc();
-		if (IS_ERR(group)) {
-			ret_val = PTR_ERR(group);
-			goto out;
-		}
-		if (of_property_read_string(node, "label", &name)) {
-			ret_val = -EINVAL;
-			goto free_group;
-		}
-		iommu_group_set_name(group, name);
-
-		if (!of_get_property(node, "qcom,iommu-contexts", &sz)) {
-			pr_err("Could not find qcom,iommu-contexts property\n");
-			ret_val = -EINVAL;
-			goto free_group;
-		}
-		num_contexts = sz / sizeof(unsigned int);
-
-		ret_val = find_and_add_contexts(group, node, num_contexts);
-		if (ret_val) {
-			ret_val = -EINVAL;
-			goto free_group;
-		}
-		ret_val = create_and_add_domain(group, node, name);
-		if (ret_val) {
-			ret_val = -EINVAL;
-			goto free_group;
-		}
-	}
-free_group:
-	/* No iommu_group_free() function */
-out:
-	return ret_val;
-}
-
 static int iommu_domain_probe(struct platform_device *pdev)
 {
 	struct iommu_domains_pdata *p  = pdev->dev.platform_data;