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authorBjorn Helgaas <bjorn.helgaas@hp.com>2009-09-21 19:30:01 +0000
committerLen Brown <len.brown@intel.com>2009-09-25 14:24:30 -0400
commit402ac53614bce0c273c73a80339556bf56dd3d39 (patch)
treeee08b782ad49532e52712c077333ee88a042019c /include
parent51a85faf2d4ffecd8384b3f501f9f7ee2b05ee53 (diff)
downloadlinaro-lsk-402ac53614bce0c273c73a80339556bf56dd3d39.tar.gz
ACPI: add acpi_bus_get_status_handle()
Add acpi_bus_get_status_handle() so we can get the status of a namespace object before building a struct acpi_device. This removes a use of "device->flags.dynamic_status", a cached indicator of whether _STA exists. It seems simpler and more reliable to just evaluate _STA and catch AE_NOT_FOUND errors. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include')
-rw-r--r--include/acpi/acpi_bus.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index bc7a69516dc..670f7f33837 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -322,6 +322,8 @@ extern void unregister_acpi_bus_notifier(struct notifier_block *nb);
int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
void acpi_bus_data_handler(acpi_handle handle, void *context);
+acpi_status acpi_bus_get_status_handle(acpi_handle handle,
+ unsigned long long *sta);
int acpi_bus_get_status(struct acpi_device *device);
int acpi_bus_get_power(acpi_handle handle, int *state);
int acpi_bus_set_power(acpi_handle handle, int state);