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-rw-r--r--include/acpi/acbuffer.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/include/acpi/acbuffer.h b/include/acpi/acbuffer.h
index 531c1e9a7d10..8cbfcbca7b7e 100644
--- a/include/acpi/acbuffer.h
+++ b/include/acpi/acbuffer.h
@@ -3,7 +3,7 @@
*
* Name: acbuffer.h - Support for buffers returned by ACPI predefined names
*
- * Copyright (C) 2000 - 2020, Intel Corp.
+ * Copyright (C) 2000 - 2022, Intel Corp.
*
*****************************************************************************/
@@ -207,4 +207,14 @@ struct acpi_pld_info {
#define ACPI_PLD_GET_HORIZ_OFFSET(dword) ACPI_GET_BITS (dword, 16, ACPI_16BIT_MASK)
#define ACPI_PLD_SET_HORIZ_OFFSET(dword,value) ACPI_SET_BITS (dword, 16, ACPI_16BIT_MASK, value) /* Offset 128+16=144, Len 16 */
+/* Panel position defined in _PLD section of ACPI Specification 6.3 */
+
+#define ACPI_PLD_PANEL_TOP 0
+#define ACPI_PLD_PANEL_BOTTOM 1
+#define ACPI_PLD_PANEL_LEFT 2
+#define ACPI_PLD_PANEL_RIGHT 3
+#define ACPI_PLD_PANEL_FRONT 4
+#define ACPI_PLD_PANEL_BACK 5
+#define ACPI_PLD_PANEL_UNKNOWN 6
+
#endif /* ACBUFFER_H */