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b83e2b3067
In some ACPI tables we encounter, devices use the _DEP method to assert a dependence on other ACPI devices as opposed to the OpRegions that the specification intends. We need to be able to find those devices "from" the dependee, so add a callback and a wrapper to walk over the acpi_dep_list and return the dependent ACPI device. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Daniel Scally <djrscally@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>