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-rw-r--r--arch/x86/kernel/rtc.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index 0aa29394ed6..ca9622a25e9 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -12,7 +12,7 @@
#include <asm/vsyscall.h>
#include <asm/x86_init.h>
#include <asm/time.h>
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>
#include <asm/rtc.h>
#ifdef CONFIG_X86_32
@@ -189,9 +189,17 @@ static __init int add_rtc_cmos(void)
return 0;
/* Intel MID platforms don't have ioport rtc */
- if (mrst_identify_cpu())
+ if (intel_mid_identify_cpu())
return -ENODEV;
+#ifdef CONFIG_ACPI
+ if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_CMOS_RTC) {
+ /* This warning can likely go away again in a year or two. */
+ pr_info("ACPI: not registering RTC platform device\n");
+ return -ENODEV;
+ }
+#endif
+
platform_device_register(&rtc_device);
dev_info(&rtc_device.dev,
"registered platform RTC device (no PNP device found)\n");