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No functional change.
This commit is contained in:
Robert Moore 2009-05-21 07:42:34 -07:00
parent 66a7952f1b
commit f63d5b83e7
1 changed files with 4 additions and 3 deletions
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source/include/aclocal.h
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@ -1013,9 +1013,10 @@ typedef struct acpi_bit_register_info
/* /*
* For PM1 control, the SCI enable bit (bit 0, SCI_EN) is defined by the * 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 * ACPI specification to be a "preserved" bit - "OSPM always preserves this
* bit position", section 4.7.3.2.1. However, some machines fail if this * bit position", section 4.7.3.2.1. However, on some machines the OS must
* bit is in fact preserved. No machines fail if the bit is not preserved. * write a one to this bit after resume for the machine to work properly.
* Therefore, we no longer attempt to preserve this bit. (May 2009) * 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 /* Bit 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_RESERVED_BITS 0xC1F8 /* Bits 14-15, 3-8 */