diff options
| author | Mark Salter <msalter@redhat.com> | 2014-08-09 01:20:14 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-09 02:57:19 +0400 |
| commit | da167ad7638759adb811afa3c80ff4cb67608242 (patch) | |
| tree | 8182f1ec3355c25918ed38c8d03c6b541cba26c9 /drivers/rtc/rtc-efi-platform.c | |
| parent | ca6dc2dab97133b874c2f6a76b6125497b67b429 (diff) | |
| download | linux-da167ad7638759adb811afa3c80ff4cb67608242.tar.xz | |
rtc: ia64: allow other architectures to use EFI RTC
Currently, the rtc-efi driver is restricted to ia64 only. Newer
architectures with EFI support may want to also use that driver. This
patch moves the platform device setup from ia64 into drivers/rtc and
allow any architecture with CONFIG_EFI=y to use the rtc-efi driver.
Signed-off-by: Mark Salter <msalter@redhat.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc/rtc-efi-platform.c')
| -rw-r--r-- | drivers/rtc/rtc-efi-platform.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-efi-platform.c b/drivers/rtc/rtc-efi-platform.c new file mode 100644 index 000000000000..b40fbe332af4 --- /dev/null +++ b/drivers/rtc/rtc-efi-platform.c @@ -0,0 +1,31 @@ +/* + * 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> + */ +#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); |