Commit e7fdb762 authored Sep 02, 2014 by Benjamin Tissoires Committed by Darren Hart Sep 02, 2014

platform/x86: toshiba: re-enable acpi hotkeys after suspend to disk



On the Toshiba Tecra Z40, after a suspend-to-disk, some FN hotkeys
driven by toshiba_acpi are not functional.

Calling the ACPI object ENAB on resume makes them back alive.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>

parent b3d94d70

drivers/platform/x86/toshiba_acpi.c

+8 −1

Original line number	Diff line number	Diff line
		@@ -1857,9 +1857,16 @@ static int toshiba_acpi_resume(struct device *device)
		{
		struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
		u32 result;
		acpi_status status;

		if (dev->hotkey_dev) {
		status = acpi_evaluate_object(dev->acpi_dev->handle, "ENAB",
		NULL, NULL);
		if (ACPI_FAILURE(status))
		pr_info("Unable to re-enable hotkeys\n");

		if (dev->hotkey_dev)
		hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &result);
		}

		return 0;
		}