tree f3e41f23b317e892287cb233c86b942e9e513786
parent d9fef0c4d2e08c3888add77f1dc54fb12afb3928
author Rafael J. Wysocki <rafael.j.wysocki@intel.com> 1385679488 +0100
committer Rafael J. Wysocki <rafael.j.wysocki@intel.com> 1386374748 +0100

PCI / ACPI: Use acpi_find_child_device() for child devices lookup

It is much more efficient to use acpi_find_child_device()
for child devices lookup in acpi_pci_find_device() and pass
ACPI_COMPANION(dev->parent) to it directly instead of obtaining
ACPI_HANDLE() of ACPI_COMPANION(dev->parent) and passing it to
acpi_find_child() which has to run acpi_bus_get_device() to
obtain ACPI_COMPANION(dev->parent) from that again.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Aaron Lu <aaron.lu@intel.com>