iommu/omap: Drop legacy-style device support
All the supported boards that have OMAP IOMMU devices do support
DT boot only now. So, drop the support for the non-DT legacy-style
devices from the OMAP IOMMU driver. Couple of the fields from the
iommu platform data would no longer be required, so they have also
been cleaned up. The IOMMU platform data is still needed though for
performing reset management properly in a multi-arch environment.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index 5455671..febd4fb 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -928,28 +928,26 @@
int irq;
struct omap_iommu *obj;
struct resource *res;
- struct iommu_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct device_node *of = pdev->dev.of_node;
+ if (!of) {
+ pr_err("%s: only DT-based devices are supported\n", __func__);
+ return -ENODEV;
+ }
+
obj = devm_kzalloc(&pdev->dev, sizeof(*obj) + MMU_REG_SIZE, GFP_KERNEL);
if (!obj)
return -ENOMEM;
- if (of) {
- obj->name = dev_name(&pdev->dev);
- obj->nr_tlb_entries = 32;
- err = of_property_read_u32(of, "ti,#tlb-entries",
- &obj->nr_tlb_entries);
- if (err && err != -EINVAL)
- return err;
- if (obj->nr_tlb_entries != 32 && obj->nr_tlb_entries != 8)
- return -EINVAL;
- if (of_find_property(of, "ti,iommu-bus-err-back", NULL))
- obj->has_bus_err_back = MMU_GP_REG_BUS_ERR_BACK_EN;
- } else {
- obj->nr_tlb_entries = pdata->nr_tlb_entries;
- obj->name = pdata->name;
- }
+ obj->name = dev_name(&pdev->dev);
+ obj->nr_tlb_entries = 32;
+ err = of_property_read_u32(of, "ti,#tlb-entries", &obj->nr_tlb_entries);
+ if (err && err != -EINVAL)
+ return err;
+ if (obj->nr_tlb_entries != 32 && obj->nr_tlb_entries != 8)
+ return -EINVAL;
+ if (of_find_property(of, "ti,iommu-bus-err-back", NULL))
+ obj->has_bus_err_back = MMU_GP_REG_BUS_ERR_BACK_EN;
obj->dev = &pdev->dev;
obj->ctx = (void *)obj + sizeof(*obj);