Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / rtc / rtc-efi-platform.c

diff --git a/kernel/drivers/rtc/rtc-efi-platform.c b/kernel/drivers/rtc/rtc-efi-platform.c
new file mode 100644 (file)
index 0000000..1a7f1d1
--- /dev/null
+++ b/kernel/drivers/rtc/rtc-efi-platform.c
@@ -0,0 +1,34 @@
+/*
+ * 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);