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authorRussell King <rmk+kernel@arm.linux.org.uk>2012-01-13 15:00:22 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-01-13 15:00:22 +0000
commit4de3a8e101150feaefa1139611a50ff37467f33e (patch)
treedaada742542518b02d7db7c5d32e715eaa5f166d /drivers/acpi/pci_root.c
parent294064f58953f9964e5945424b09c51800330a83 (diff)
parent099469502f62fbe0d7e4f0b83a2f22538367f734 (diff)
Merge branch 'master' into fixes
Diffstat (limited to 'drivers/acpi/pci_root.c')
-rw-r--r--drivers/acpi/pci_root.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 2672c798272..7aff6312ce7 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -596,6 +596,13 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
if (ACPI_SUCCESS(status)) {
dev_info(root->bus->bridge,
"ACPI _OSC control (0x%02x) granted\n", flags);
+ if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM) {
+ /*
+ * We have ASPM control, but the FADT indicates
+ * that it's unsupported. Clear it.
+ */
+ pcie_clear_aspm(root->bus);
+ }
} else {
dev_info(root->bus->bridge,
"ACPI _OSC request failed (%s), "