Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...

[pandora-kernel.git] / drivers / acpi / acpica / aclocal.h

diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 2ec394a..ee986ed 100644 (file)
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -205,6 +205,7 @@ struct acpi_namespace_node {
 #define ANOBJ_METHOD_LOCAL              0x08   /* Node is a method local */
 #define ANOBJ_SUBTREE_HAS_INI           0x10   /* Used to optimize device initialization */
 #define ANOBJ_EVALUATED                 0x20   /* Set on first evaluation of node */
+#define ANOBJ_ALLOCATED_BUFFER          0x40   /* Method AML buffer is dynamic (install_method) */
 
 #define ANOBJ_IS_EXTERNAL               0x08   /* i_aSL only: This object created via External() */
 #define ANOBJ_METHOD_NO_RETVAL          0x10   /* i_aSL only: Method has no return value */
@@ -788,11 +789,14 @@ struct acpi_bit_register_info {
 /* For control registers, both ignored and reserved bits must be preserved */
 
 /*
- * The ACPI spec says to ignore PM1_CTL.SCI_EN (bit 0)
- * but we need to be able to write ACPI_BITREG_SCI_ENABLE directly
- * as a BIOS workaround on some machines.
+ * For PM1 control, the SCI enable bit (bit 0, SCI_EN) is defined by the
+ * ACPI specification to be a "preserved" bit - "OSPM always preserves this
+ * bit position", section 4.7.3.2.1. However, on some machines the OS must
+ * write a one to this bit after resume for the machine to work properly.
+ * To enable this, we no longer attempt to preserve this bit. No machines
+ * are known to fail if the bit is not preserved. (May 2009)
  */
-#define ACPI_PM1_CONTROL_IGNORED_BITS           0x0200 /* Bits 9 */
+#define ACPI_PM1_CONTROL_IGNORED_BITS           0x0200 /* Bit 9 */
 #define ACPI_PM1_CONTROL_RESERVED_BITS          0xC1F8 /* Bits 14-15, 3-8 */
 #define ACPI_PM1_CONTROL_PRESERVED_BITS \
               (ACPI_PM1_CONTROL_IGNORED_BITS | ACPI_PM1_CONTROL_RESERVED_BITS)