tree 08081e436bfed580e7f5a059faa1c77da3dbd58e
parent ce793486e23e0162a732c605189c8028e0910e86
author Rafael J. Wysocki <rafael.j.wysocki@intel.com> 1426546148 +0100
committer Rafael J. Wysocki <rafael.j.wysocki@intel.com> 1426546148 +0100

ACPI: Introduce has_acpi_companion()

Now that the ACPI companions of devices are represented by pointers
to struct fwnode_handle, it is not quite efficient to check whether
or not an ACPI companion of a device is present by evaluating the
ACPI_COMPANION() macro.

For this reason, introduce a special static inline routine for that,
has_acpi_companion(), and update the code to use it where applicable.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>