1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index 07bc6dfe662b..8920e8c6e246 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -812,6 +812,9 @@ static int irqrouter_resume(struct sys_device *dev)
 
         ACPI_FUNCTION_TRACE("irqrouter_resume");
 
+        /* Make sure SCI is enabled again (Apple firmware bug?) */
+        acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1, ACPI_MTX_DO_NOT_LOCK);
+
         acpi_in_resume = 1;
         list_for_each(node, &acpi_link.entries) {
                 link = list_entry(node, struct acpi_pci_link, node);