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| author | Bob Moore <robert.moore@intel.com> | 2009-03-13 01:10:46 (GMT) |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-03-27 16:11:03 (GMT) |
| commit | 20869dcfde204e1c21b642608d708d82472fee2b (patch) | |
| tree | a3e6dca8ff835def8ba6a41606aa30cac5d9fa1c /drivers/acpi/acpica/aclocal.h | |
| parent | 8636f8d257b3edf5a1529df93119cdc630ed85c7 (diff) | |
| download | linux-20869dcfde204e1c21b642608d708d82472fee2b.tar.xz | |
ACPICA: Preserve all PM control reserved and ignored bits
As per the ACPI specification, preserve (read/modify/write) all
bits that are defined as either reserved or ignored (PM control
control registers only.)
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/aclocal.h')
| -rw-r--r-- | drivers/acpi/acpica/aclocal.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index 18a8d96..f01e155 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -780,7 +780,15 @@ struct acpi_bit_register_info { * must be preserved. */ #define ACPI_PM1_STATUS_PRESERVED_BITS 0x0800 /* Bit 11 */ -#define ACPI_PM1_CONTROL_PRESERVED_BITS 0x0200 /* Bit 9 (whatever) */ + +/* For control registers, both ignored and reserved bits must be preserved */ + +#define ACPI_PM1_CONTROL_IGNORED_BITS 0x0201 /* Bits 9, 0(SCI_EN) */ +#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) + +#define ACPI_PM2_CONTROL_PRESERVED_BITS 0xFFFFFFFE /* All except bit 0 */ /* * Register IDs |