ACPICA: Optimize ACPI register locking

Removed locking for reads from the ACPI bit registers in PM1
Status, Enable, Control, and PM2 Control. The lock is not required
when reading the single-bit registers. The acpi_get_register_unlocked
function is no longer needed and has been removed. This will
improve performance for reads on these registers.  ACPICA BZ 760.

http://www.acpica.org/bugzilla/show_bug.cgi?id=760

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>

1 files changed, 0 insertions, 2 deletions

diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index e10c89691043..325d4b073aca 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -347,8 +347,6 @@ acpi_status acpi_reset(void);
 
 acpi_status acpi_get_register(u32 register_id, u32 * return_value);
 
-acpi_status acpi_get_register_unlocked(u32 register_id, u32 *return_value);
-
 acpi_status acpi_set_register(u32 register_id, u32 value);
 
 acpi_status acpi_set_firmware_waking_vector(u32 physical_address);