[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/acpi/acpica/pswalk.c b/src/kernel/linux/v4.14/drivers/acpi/acpica/pswalk.c
new file mode 100644
index 0000000..22a37c8
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/acpi/acpica/pswalk.c
@@ -0,0 +1,111 @@
+/******************************************************************************
+ *
+ * Module Name: pswalk - Parser routines to walk parsed op tree(s)
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2017, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acparser.h"
+
+#define _COMPONENT ACPI_PARSER
+ACPI_MODULE_NAME("pswalk")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_delete_parse_tree
+ *
+ * PARAMETERS: subtree_root - Root of tree (or subtree) to delete
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Delete a portion of or an entire parse tree.
+ *
+ ******************************************************************************/
+void acpi_ps_delete_parse_tree(union acpi_parse_object *subtree_root)
+{
+ union acpi_parse_object *op = subtree_root;
+ union acpi_parse_object *next = NULL;
+ union acpi_parse_object *parent = NULL;
+
+ ACPI_FUNCTION_TRACE_PTR(ps_delete_parse_tree, subtree_root);
+
+ /* Visit all nodes in the subtree */
+
+ while (op) {
+
+ /* Check if we are not ascending */
+
+ if (op != parent) {
+
+ /* Look for an argument or child of the current op */
+
+ next = acpi_ps_get_arg(op, 0);
+ if (next) {
+
+ /* Still going downward in tree (Op is not completed yet) */
+
+ op = next;
+ continue;
+ }
+ }
+
+ /* No more children, this Op is complete. */
+
+ next = op->common.next;
+ parent = op->common.parent;
+
+ acpi_ps_free_op(op);
+
+ /* If we are back to the starting point, the walk is complete. */
+
+ if (op == subtree_root) {
+ return_VOID;
+ }
+
+ if (next) {
+ op = next;
+ } else {
+ op = parent;
+ }
+ }
+
+ return_VOID;
+}