Messages in this thread Patch in this message | | | Date | Tue, 05 Jul 2011 08:38:51 +0100 | From | "Jan Beulich" <> | Subject | [PATCH] x86: enable rtc-efi |
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Besides a Kconfig change this just requires creating a respective platform device.
Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: dann frazier <dannf@hp.com>
--- arch/x86/platform/efi/efi.c | 16 ++++++++++++++++ drivers/rtc/Kconfig | 2 +- 2 files changed, 17 insertions(+), 1 deletion(-)
--- 3.0-rc6/arch/x86/platform/efi/efi.c +++ 3.0-rc6-x86-EFI-RTC/arch/x86/platform/efi/efi.c @@ -31,6 +31,7 @@ #include <linux/efi.h> #include <linux/bootmem.h> #include <linux/memblock.h> +#include <linux/platform_device.h> #include <linux/spinlock.h> #include <linux/uaccess.h> #include <linux/time.h> @@ -679,6 +680,21 @@ void __init efi_enter_virtual_mode(void) kfree(new_memmap); } +static struct platform_device rtc_efi_dev = { + .name = "rtc-efi", + .id = -1, +}; + +static int __init rtc_init(void) +{ + if (efi_enabled && platform_device_register(&rtc_efi_dev) < 0) + printk(KERN_ERR "unable to register rtc device...\n"); + + /* not necessarily an error */ + return 0; +} +arch_initcall(rtc_init); + /* * Convenience functions to obtain memory types and attributes */ --- 3.0-rc6/drivers/rtc/Kconfig +++ 3.0-rc6-x86-EFI-RTC/drivers/rtc/Kconfig @@ -556,7 +556,7 @@ config RTC_DRV_DS1742 config RTC_DRV_EFI tristate "EFI RTC" - depends on IA64 + depends on EFI help If you say yes here you will get support for the EFI Real Time Clock.
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