Commit 89a22dad authored Feb 04, 2013 by Zhang Rui Committed by Rafael J. Wysocki Feb 09, 2013

ACPI: enable ACPI SCI during suspend



Enable ACPI SCI during suspend so that SCI can be used
as wake events for PM_SUSPEND_FREEZE.

For S3/S4 transition,
We disable all GPEs in suspend_ops->prepare_late() to
fix a problem that GPEs may trigger SCI  before
arch_suspend_disable_irqs() is run.
So it is safe to leave the SCI enabled until
arch_suspend_irq_disable() is run.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent 7e73c5ae

drivers/acpi/osl.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -787,7 +787,7 @@ acpi_os_install_interrupt_handler(u32 gsi, acpi_osd_handler handler,

		acpi_irq_handler = handler;
		acpi_irq_context = context;
		if (request_irq(irq, acpi_irq, IRQF_SHARED, "acpi", acpi_irq)) {
		if (request_irq(irq, acpi_irq, IRQF_SHARED \| IRQF_NO_SUSPEND, "acpi", acpi_irq)) {
		printk(KERN_ERR PREFIX "SCI (IRQ%d) allocation failed\n", irq);
		acpi_irq_handler = NULL;
		return AE_NOT_ACQUIRED;

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