From 8adcc0af043fd7e364f49492d9512a1ef7a2864e Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Tue, 30 Dec 2008 11:11:57 +0800
Subject: [PATCH] --- yaml --- r: 128051 b: refs/heads/master c:
 d3fd902d1ed43aebfc407c08d7ce86495604124c h: refs/heads/master i:   128049:
 00044ba96a2e4d6a1051fb6e565862d73e30817c   128047:
 21d9023fd86038ad2d5cd7b4384eab535be55958 v: v3

---
 [refs]                                |  2 +-
 trunk/drivers/acpi/hardware/hwxface.c | 37 +++++++++++++++++++++++++++
 trunk/include/acpi/acpixf.h           |  2 ++
 3 files changed, 40 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 9d0b09c2883b..caa71e343564 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7db5d82d0278b506441ab6025f0c6ce2f2aa3019
+refs/heads/master: d3fd902d1ed43aebfc407c08d7ce86495604124c
diff --git a/trunk/drivers/acpi/hardware/hwxface.c b/trunk/drivers/acpi/hardware/hwxface.c
index b6244a0fcf4c..0601ed711f30 100644
--- a/trunk/drivers/acpi/hardware/hwxface.c
+++ b/trunk/drivers/acpi/hardware/hwxface.c
@@ -48,6 +48,43 @@
 #define _COMPONENT          ACPI_HARDWARE
 ACPI_MODULE_NAME("hwxface")
 
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_reset
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Set reset register in memory or IO space. Note: Does not
+ *              support reset register in PCI config space, this must be
+ *              handled separately.
+ *
+ ******************************************************************************/
+acpi_status acpi_reset(void)
+{
+	struct acpi_generic_address *reset_reg;
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(acpi_reset);
+
+	reset_reg = &acpi_gbl_FADT.reset_register;
+
+	/* Check if the reset register is supported */
+
+	if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) ||
+	    !reset_reg->address) {
+		return_ACPI_STATUS(AE_NOT_EXIST);
+	}
+
+	/* Write the reset value to the reset register */
+
+	status = acpi_write(acpi_gbl_FADT.reset_value, reset_reg);
+	return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_reset)
+
 /******************************************************************************
  *
  * FUNCTION:    acpi_read
diff --git a/trunk/include/acpi/acpixf.h b/trunk/include/acpi/acpixf.h
index 030aeb556e6b..b3bceadf6f75 100644
--- a/trunk/include/acpi/acpixf.h
+++ b/trunk/include/acpi/acpixf.h
@@ -322,6 +322,8 @@ acpi_resource_to_address64(struct acpi_resource *resource,
 /*
  * Hardware (ACPI device) interfaces
  */
+acpi_status acpi_reset(void);
+
 acpi_status acpi_get_register(u32 register_id, u32 * return_value);
 
 acpi_status acpi_get_register_unlocked(u32 register_id, u32 *return_value);