| /* | |
| * Copyright (C) 2008 Freescale Semiconductor, Inc. | |
| * | |
| * This program is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU General Public License | |
| * as published by the Free Software Foundation; either version | |
| * 2 of the License, or (at your option) any later version. | |
| */ | |
| #include <linux/device.h> /* devres_*(), devm_ioremap_release() */ | |
| #include <linux/io.h> /* ioremap_flags() */ | |
| #include <linux/module.h> /* EXPORT_SYMBOL() */ | |
| /** | |
| * devm_ioremap_prot - Managed ioremap_flags() | |
| * @dev: Generic device to remap IO address for | |
| * @offset: BUS offset to map | |
| * @size: Size of map | |
| * @flags: Page flags | |
| * | |
| * Managed ioremap_prot(). Map is automatically unmapped on driver | |
| * detach. | |
| */ | |
| void __iomem *devm_ioremap_prot(struct device *dev, resource_size_t offset, | |
| size_t size, unsigned long flags) | |
| { | |
| void __iomem **ptr, *addr; | |
| ptr = devres_alloc(devm_ioremap_release, sizeof(*ptr), GFP_KERNEL); | |
| if (!ptr) | |
| return NULL; | |
| addr = ioremap_flags(offset, size, flags); | |
| if (addr) { | |
| *ptr = addr; | |
| devres_add(dev, ptr); | |
| } else | |
| devres_free(ptr); | |
| return addr; | |
| } | |
| EXPORT_SYMBOL(devm_ioremap_prot); |