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ACPI: introduce two helper functions for _EJ0 and _LCK

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Introduce two helper functions, acpi_evaluate_ej0() and
acpi_evaluate_lck(), that will execute the _EJ0 and _LCK ACPI
control methods, respectively, and use them to simplify the
ACPI scan code.

[rjw: Changelog]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Jiang Liu 2013-06-29 00:24:40 +08:00 • committed by Rafael J. Wysocki
parent 0db9820260
commit 7d2421f84b
3 changed files with 51 additions and 25 deletions
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2
include/acpi/acpi_bus.h
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@ -60,6 +60,8 @@ acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld
bool acpi_has_method(acpi_handle handle, char *name);
acpi_status acpi_execute_simple_method(acpi_handle handle, char *method,
u64 arg);
acpi_status acpi_evaluate_ej0(acpi_handle handle);
acpi_status acpi_evaluate_lck(acpi_handle handle, int lock);
#ifdef CONFIG_ACPI