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| author | Andrew Patterson <andrew.patterson@hp.com> | 2008-11-10 15:30:55 -0700 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-01-07 11:12:29 -0800 |
| commit | 3e1b16002af29758b6bc9c38939d43838d9335bc (patch) | |
| tree | 6782f844e3813355280ad3367c58d90d576901f2 /drivers/acpi | |
| parent | 0ef5f8f6159e44b4faa997be08d1a3bcbf44ad08 (diff) | |
| download | lwn-3e1b16002af29758b6bc9c38939d43838d9335bc.tar.gz lwn-3e1b16002af29758b6bc9c38939d43838d9335bc.zip | |
ACPI/PCI: PCIe ASPM _OSC support capabilities called when root bridge added
The _OSC capabilities OSC_ACTIVE_STATE_PWR_SUPPORT and
OSC_CLOCK_PWR_CAPABILITY_SUPPORT are set when the root bridge is added
with pci_acpi_osc_support(), so we no longer need to do it in the ASPM
driver. Also add the function pcie_aspm_enabled, which returns true if
pcie_aspm=off is not on the kernel command-line.
Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/pci_root.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 96e68e841539..9fe026b1c9d0 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -347,6 +347,9 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device) /* Indicate support for various _OSC capabilities. */ if (pci_ext_cfg_avail(root->bus->self)) flags |= OSC_EXT_PCI_CONFIG_SUPPORT; + if (pcie_aspm_enabled()) + flags |= OSC_ACTIVE_STATE_PWR_SUPPORT | + OSC_CLOCK_PWR_CAPABILITY_SUPPORT; if (flags != base_flags) pci_acpi_osc_support(device->handle, flags); |