devm_ioremap_resource() : checks resource, requests memory region, ioremaps
devm_ioremap_resource_wc()
devm_platform_ioremap_resource() : calls devm_ioremap_resource() for platform device
- devm_platform_ioremap_resource_wc()
devm_platform_ioremap_resource_byname()
devm_platform_get_and_ioremap_resource()
devm_iounmap()