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PCI: shpchp: Request SHPC control via _OSC when adding host bridge

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The SHPC driver now must be builtin (it cannot be a module).  If it is
present, request SHPC control immediately when adding the ACPI host bridge.
This is similar to how we handle native PCIe hotplug via pciehp.

Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
[bhelgaas: split to separate patch]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Mika Westerberg 2018-05-23 17:40:23 -05:00 • committed by Bjorn Helgaas
parent 82280f7af7
commit 1df81a6d6e
3 changed files with 7 additions and 0 deletions
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1
include/linux/pci.h
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@ -475,6 +475,7 @@ struct pci_host_bridge {
unsigned int no_ext_tags:1; /* No Extended Tags */
unsigned int native_aer:1; /* OS may use PCIe AER */
unsigned int native_pcie_hotplug:1; /* OS may use PCIe hotplug */
unsigned int native_shpc_hotplug:1; /* OS may use SHPC hotplug */
unsigned int native_pme:1; /* OS may use PCIe PME */
/* Resource alignment requirements */
resource_size_t (*align_resource)(struct pci_dev *dev,