if (contiguous) {
                if (is_power_of_2(page_size))
-                       paddr = (u64) (uintptr_t) gen_pool_dma_alloc_align(vm->dram_pg_pool,
-                                                               total_size, NULL, page_size);
+                       paddr = (uintptr_t) gen_pool_dma_alloc_align(vm->dram_pg_pool,
+                                                                    total_size, NULL, page_size);
                else
-                       paddr = (u64) (uintptr_t) gen_pool_alloc(vm->dram_pg_pool, total_size);
+                       paddr = gen_pool_alloc(vm->dram_pg_pool, total_size);
                if (!paddr) {
                        dev_err(hdev->dev,
                                "failed to allocate %llu contiguous pages with total size of %llu\n",
                for (i = 0 ; i < num_pgs ; i++) {
                        if (is_power_of_2(page_size))
                                phys_pg_pack->pages[i] =
-                                               (u64) gen_pool_dma_alloc_align(vm->dram_pg_pool,
-                                                                               page_size, NULL,
-                                                                               page_size);
+                                       (uintptr_t)gen_pool_dma_alloc_align(vm->dram_pg_pool,
+                                                                           page_size, NULL,
+                                                                           page_size);
                        else
-                               phys_pg_pack->pages[i] = (u64) gen_pool_alloc(vm->dram_pg_pool,
-                                                                               page_size);
+                               phys_pg_pack->pages[i] = gen_pool_alloc(vm->dram_pg_pool,
+                                                                       page_size);
                        if (!phys_pg_pack->pages[i]) {
                                dev_err(hdev->dev,
                                        "Failed to allocate device memory (out of memory)\n");