tree ce141dc89652f25a3288ea4069563ee9b9b18f41
parent 9310f0dc1c6430ca9e370a8341bea9f5dc85f40b
author Mika Westerberg <mika.westerberg@linux.intel.com> 1527114248 -0500
committer Bjorn Helgaas <bhelgaas@google.com> 1527916708 -0500

PCI: pciehp: Make pciehp_is_native() stricter

Previously pciehp_is_native() returned true for any PCI device in a
hierarchy where _OSC says we can use pciehp.  This is incorrect because
bridges without PCI_EXP_SLTCAP_HPC capability should be managed by acpiphp
instead.

Improve pciehp_is_native() to return true only when PCI_EXP_SLTCAP_HPC is
set and the pciehp driver is present.  In any other case return false
to let acpiphp handle those.

Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
[bhelgaas: remove NULL pointer check]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>