From: Linus Torvalds Date: Tue, 20 Jun 2006 01:05:09 +0000 (-0700) Subject: Make sure to re-enable SCI after an ACPI suspend X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5603509137940f4cbc577281cee62110d4097b1b;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git 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 --- 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);