Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Copyright (C) 2019-2020 Linaro Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include "ipa.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include "ipa_reg.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) int ipa_reg_init(struct ipa *ipa)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	struct device *dev = &ipa->pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	struct resource *res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	/* Setup IPA register memory  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	res = platform_get_resource_byname(ipa->pdev, IORESOURCE_MEM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 					   "ipa-reg");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	if (!res) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		dev_err(dev, "DT error getting \"ipa-reg\" memory property\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	ipa->reg_virt = ioremap(res->start, resource_size(res));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	if (!ipa->reg_virt) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		dev_err(dev, "unable to remap \"ipa-reg\" memory\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	ipa->reg_addr = res->start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) void ipa_reg_exit(struct ipa *ipa)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	iounmap(ipa->reg_virt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) }