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| author | Jiang Liu <jiang.liu@huawei.com> | 2013-06-29 00:24:39 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-07-15 01:33:10 +0200 |
| commit | 0db98202605c3d32e023d43c30b5bd878f520976 (patch) | |
| tree | 7aec122f45db5c6b6c2f046ccf1eb9fa160fb616 /drivers/acpi/utils.c | |
| parent | 952c63e9512b63220886105cfc791507046fa39a (diff) | |
| download | linux-0-day-0db98202605c3d32e023d43c30b5bd878f520976.tar.gz linux-0-day-0db98202605c3d32e023d43c30b5bd878f520976.tar.xz | |
ACPI: introduce helper function acpi_execute_simple_method()
Introduce helper function acpi_execute_simple_method() and use it in
a number of places to simplify code.
[rjw: Changelog]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/utils.c')
| -rw-r--r-- | drivers/acpi/utils.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index b08d97376f849..87b85882b5dfe 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -510,3 +510,15 @@ bool acpi_has_method(acpi_handle handle, char *name) return ACPI_SUCCESS(acpi_get_handle(handle, name, &tmp)); } EXPORT_SYMBOL(acpi_has_method); + +acpi_status acpi_execute_simple_method(acpi_handle handle, char *method, + u64 arg) +{ + union acpi_object obj = { .type = ACPI_TYPE_INTEGER }; + struct acpi_object_list arg_list = { .count = 1, .pointer = &obj, }; + + obj.integer.value = arg; + + return acpi_evaluate_object(handle, method, &arg_list, NULL); +} +EXPORT_SYMBOL(acpi_execute_simple_method); |