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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-06 11:44:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-06 11:44:36 -0700 |
| commit | 1cfd2bda8c486ae0e7a8005354758ebb68172bca (patch) | |
| tree | 76ce15f377d8d6eb3ae4aa8b8b0b415457e38d36 /drivers/acpi | |
| parent | b57bdda58cda0aaf6def042d101dd85977a286ed (diff) | |
| parent | 763e9db9994e27a7d2cb3701c8a097a867d0e0b4 (diff) | |
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (30 commits)
PCI: update for owner removal from struct device_attribute
PCI: Fix warnings when CONFIG_DMI unset
PCI: Do not run NVidia quirks related to MSI with MSI disabled
x86/PCI: use for_each_pci_dev()
PCI: use for_each_pci_dev()
PCI: MSI: Restore read_msi_msg_desc(); add get_cached_msi_msg_desc()
PCI: export SMBIOS provided firmware instance and label to sysfs
PCI: Allow read/write access to sysfs I/O port resources
x86/PCI: use host bridge _CRS info on ASRock ALiveSATA2-GLAN
PCI: remove unused HAVE_ARCH_PCI_SET_DMA_MAX_SEGMENT_{SIZE|BOUNDARY}
PCI: disable mmio during bar sizing
PCI: MSI: Remove unsafe and unnecessary hardware access
PCI: Default PCIe ASPM control to on and require !EMBEDDED to disable
PCI: kernel oops on access to pci proc file while hot-removal
PCI: pci-sysfs: remove casts from void*
ACPI: Disable ASPM if the platform won't provide _OSC control for PCIe
PCI hotplug: make sure child bridges are enabled at hotplug time
PCI hotplug: shpchp: Removed check for hotplug of display devices
PCI hotplug: pciehp: Fixed return value sign for pciehp_unconfigure_device
PCI: Don't enable aspm before drivers have had a chance to veto it
...
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/pci_root.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 4eac59393ed..1f67057af2a 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -33,6 +33,7 @@ #include <linux/pm_runtime.h> #include <linux/pci.h> #include <linux/pci-acpi.h> +#include <linux/pci-aspm.h> #include <linux/acpi.h> #include <linux/slab.h> #include <acpi/acpi_bus.h> @@ -543,6 +544,14 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device) if (flags != base_flags) acpi_pci_osc_support(root, flags); + status = acpi_pci_osc_control_set(root->device->handle, + OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL); + + if (ACPI_FAILURE(status)) { + printk(KERN_INFO "Unable to assume PCIe control: Disabling ASPM\n"); + pcie_no_aspm(); + } + pci_acpi_add_bus_pm_notifier(device, root->bus); if (device->wakeup.flags.run_wake) device_set_run_wake(root->bus->bridge, true); |