Make sure to re-enable SCI after an ACPI suspend
authorLinus Torvalds <torvalds@g5.osdl.org>
Tue, 20 Jun 2006 01:05:09 +0000 (18:05 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Tue, 20 Jun 2006 01:05:09 +0000 (18:05 -0700)
According to the ACPI spec, it should be enabled on return from suspend,
but bugs happen.  Apparently especially on the Apple Intel Macs.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
drivers/acpi/pci_link.c

index 07bc6dfe662b34aeb4c83d7476d6cee31c10c70a..8920e8c6e246dba49a30da6c2539dae11ec69316 100644 (file)
@@ -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);