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Subject[PATCH] x86: enable rtc-efi
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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