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authorMika Westerberg <mika.westerberg@linux.intel.com>2018-05-23 17:19:22 -0500
committerBjorn Helgaas <bhelgaas@google.com>2018-05-23 17:42:53 -0500
commit408fec36a1ab3d14273c2116b449ef1e9be3cb8b (patch)
treea9a5f147940abfd6668ff3f35ed3c5e5f88c955f /drivers/acpi/pci_root.c
parent13c65840feab8109194f9490c9870587173cb29d (diff)
downloadlinux-408fec36a1ab3d14273c2116b449ef1e9be3cb8b.tar.bz2
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>
Diffstat (limited to 'drivers/acpi/pci_root.c')
-rw-r--r--drivers/acpi/pci_root.c4
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,