From 5603509137940f4cbc577281cee62110d4097b1b Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 19 Jun 2006 18:05:09 -0700 Subject: [PATCH] Make sure to re-enable SCI after an ACPI suspend 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 --- drivers/acpi/pci_link.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index 07bc6dfe66..8920e8c6e2 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); -- 2.39.5