diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2018-05-24 01:19:22 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2018-05-24 01:42:53 +0300 |
| commit | 408fec36a1ab3d14273c2116b449ef1e9be3cb8b (patch) | |
| tree | a9a5f147940abfd6668ff3f35ed3c5e5f88c955f | |
| parent | 13c65840feab8109194f9490c9870587173cb29d (diff) | |
| download | linux-408fec36a1ab3d14273c2116b449ef1e9be3cb8b.tar.xz | |
PCI: pciehp: Request control of native hotplug only if supported
Currently we request control of native PCIe hotplug unconditionally.
Native PCIe hotplug events are handled by the pciehp driver, and if it is
not enabled those events will be lost.
Request control of native PCIe hotplug only if the pciehp driver is
enabled, so we will actually handle native PCIe hotplug events.
Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | drivers/acpi/pci_root.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 0da18bde6a16..dd946b62fedd 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -472,9 +472,11 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm) } control = OSC_PCI_EXPRESS_CAPABILITY_CONTROL - | OSC_PCI_EXPRESS_NATIVE_HP_CONTROL | OSC_PCI_EXPRESS_PME_CONTROL; + if (IS_ENABLED(CONFIG_HOTPLUG_PCI_PCIE)) + control |= OSC_PCI_EXPRESS_NATIVE_HP_CONTROL; + if (pci_aer_available()) { if (aer_acpi_firmware_first()) dev_info(&device->dev, |