[PATCH 16/18] ACPI 5.0: Allow _AEI method in walk resources

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From: Zhang Rui <rui.zhang@xxxxxxxxx>

_AEI contains a resource template, this change adds support for
the walk resources function.

Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx>
Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
Signed-off-by: Lin Ming <ming.m.lin@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
---
 drivers/acpi/acpica/rsxface.c |   10 ++++++----
 include/acpi/acnames.h        |    1 +
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
index 45a9e5e..f6cceac 100644
--- a/drivers/acpi/acpica/rsxface.c
+++ b/drivers/acpi/acpica/rsxface.c
@@ -526,8 +526,9 @@ acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context)
  *
  * PARAMETERS:  device_handle   - Handle to the device object for the
  *                                device we are querying
- *              Name            - Method name of the resources we want
- *                                (METHOD_NAME__CRS or METHOD_NAME__PRS)
+ *              Name            - Method name of the resources we want.
+ *                                (METHOD_NAME__CRS, METHOD_NAME__PRS, or
+ *                                METHOD_NAME__AEI)
  *              user_function   - Called for each resource
  *              Context         - Passed to user_function
  *
@@ -554,11 +555,12 @@ acpi_walk_resources(acpi_handle device_handle,
 
 	if (!device_handle || !user_function || !name ||
 	    (!ACPI_COMPARE_NAME(name, METHOD_NAME__CRS) &&
-	     !ACPI_COMPARE_NAME(name, METHOD_NAME__PRS))) {
+	     !ACPI_COMPARE_NAME(name, METHOD_NAME__PRS) &&
+	     !ACPI_COMPARE_NAME(name, METHOD_NAME__AEI))) {
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
 
-	/* Get the _CRS or _PRS resource list */
+	/* Get the _CRS/_PRS/_AEI resource list */
 
 	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
 	status = acpi_rs_get_method_data(device_handle, name, &buffer);
diff --git a/include/acpi/acnames.h b/include/acpi/acnames.h
index fc1575f..5b5af0d 100644
--- a/include/acpi/acnames.h
+++ b/include/acpi/acnames.h
@@ -58,6 +58,7 @@
 #define METHOD_NAME__PRT        "_PRT"
 #define METHOD_NAME__CRS        "_CRS"
 #define METHOD_NAME__PRS        "_PRS"
+#define METHOD_NAME__AEI        "_AEI"
 #define METHOD_NAME__PRW        "_PRW"
 #define METHOD_NAME__SRS        "_SRS"
 
-- 
1.7.7.rc0.72.g4b5ea

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