| // SPDX-License-Identifier: GPL-2.0 |
| |
| /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. |
| * Copyright (C) 2019-2020 Linaro Ltd. |
| */ |
| |
| #include <linux/io.h> |
| |
| #include "ipa.h" |
| #include "ipa_reg.h" |
| |
| int ipa_reg_init(struct ipa *ipa) |
| { |
| struct device *dev = &ipa->pdev->dev; |
| struct resource *res; |
| |
| /* Setup IPA register memory */ |
| res = platform_get_resource_byname(ipa->pdev, IORESOURCE_MEM, |
| "ipa-reg"); |
| if (!res) { |
| dev_err(dev, "DT error getting \"ipa-reg\" memory property\n"); |
| return -ENODEV; |
| } |
| |
| ipa->reg_virt = ioremap(res->start, resource_size(res)); |
| if (!ipa->reg_virt) { |
| dev_err(dev, "unable to remap \"ipa-reg\" memory\n"); |
| return -ENOMEM; |
| } |
| ipa->reg_addr = res->start; |
| |
| return 0; |
| } |
| |
| void ipa_reg_exit(struct ipa *ipa) |
| { |
| iounmap(ipa->reg_virt); |
| } |
