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Subject[RFC PATCH v2 02/12] ACPI: Add sys_hotplug.h for system device hotplug framework
Date
Added include/acpi/sys_hotplug.h, which is ACPI-specific system
device hotplug header and defines the order values of ACPI-specific
handlers.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
---
include/acpi/sys_hotplug.h | 48 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 48 insertions(+)
create mode 100644 include/acpi/sys_hotplug.h

diff --git a/include/acpi/sys_hotplug.h b/include/acpi/sys_hotplug.h
new file mode 100644
index 0000000..ad80f61
--- /dev/null
+++ b/include/acpi/sys_hotplug.h
@@ -0,0 +1,48 @@
+/*
+ * sys_hotplug.h - ACPI System device hot-plug framework
+ *
+ * Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
+ * Toshi Kani <toshi.kani@hp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _ACPI_SYS_HOTPLUG_H
+#define _ACPI_SYS_HOTPLUG_H
+
+#include <linux/list.h>
+#include <linux/device.h>
+#include <linux/sys_hotplug.h>
+
+/*
+ * System device hot-plug operation proceeds in the following order.
+ * Validate phase -> Execute phase -> Commit phase
+ *
+ * The order values below define the calling sequence of ACPI-specific
+ * handlers for each phase in ascending order. The order value of
+ * platform-neutral handlers are defined in <linux/sys_hotplug.h>.
+ */
+
+/* Add Validate order values */
+#define SHP_ACPI_BUS_ADD_VALIDATE_ORDER 0 /* must be first */
+
+/* Add Execute order values */
+#define SHP_ACPI_BUS_ADD_EXECUTE_ORDER 10
+#define SHP_ACPI_RES_ADD_EXECUTE_ORDER 20
+
+/* Add Commit order values */
+#define SHP_ACPI_BUS_ADD_COMMIT_ORDER 10
+
+/* Delete Validate order values */
+#define SHP_ACPI_BUS_DEL_VALIDATE_ORDER 0 /* must be first */
+#define SHP_ACPI_RES_DEL_VALIDATE_ORDER 10
+
+/* Delete Execute order values */
+#define SHP_ACPI_BUS_DEL_EXECUTE_ORDER 100
+
+/* Delete Commit order values */
+#define SHP_ACPI_BUS_DEL_COMMIT_ORDER 100
+
+#endif /* _ACPI_SYS_HOTPLUG_H */

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