|  | // SPDX-License-Identifier: GPL-2.0 | 
|  | /* | 
|  | * Moved from arch/ia64/kernel/time.c | 
|  | * | 
|  | * Copyright (C) 1998-2003 Hewlett-Packard Co | 
|  | *	Stephane Eranian <eranian@hpl.hp.com> | 
|  | *	David Mosberger <davidm@hpl.hp.com> | 
|  | * Copyright (C) 1999 Don Dugger <don.dugger@intel.com> | 
|  | * Copyright (C) 1999-2000 VA Linux Systems | 
|  | * Copyright (C) 1999-2000 Walt Drummond <drummond@valinux.com> | 
|  | */ | 
|  |  | 
|  | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | 
|  |  | 
|  | #include <linux/init.h> | 
|  | #include <linux/kernel.h> | 
|  | #include <linux/module.h> | 
|  | #include <linux/efi.h> | 
|  | #include <linux/platform_device.h> | 
|  |  | 
|  | static struct platform_device rtc_efi_dev = { | 
|  | .name = "rtc-efi", | 
|  | .id = -1, | 
|  | }; | 
|  |  | 
|  | static int __init rtc_init(void) | 
|  | { | 
|  | if (efi_enabled(EFI_RUNTIME_SERVICES)) | 
|  | if (platform_device_register(&rtc_efi_dev) < 0) | 
|  | pr_err("unable to register rtc device...\n"); | 
|  |  | 
|  | /* not necessarily an error */ | 
|  | return 0; | 
|  | } | 
|  | module_init(rtc_init); |