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authorBenjamin Tissoires <benjamin.tissoires@redhat.com>2014-09-02 22:04:19 +0400
committerDarren Hart <dvhart@linux.intel.com>2014-09-03 02:45:36 +0400
commite7fdb762b9e1e10c3271e47723b2003330829ddf (patch)
treecf9d0c4c12967f13586c4f44dfa701f46d18234b /drivers/platform
parentb3d94d7011cd6dbfd315637e31f5d557116e76d7 (diff)
downloadlinux-e7fdb762b9e1e10c3271e47723b2003330829ddf.tar.xz
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>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/toshiba_acpi.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index b062d3d7b373..ba75701986e5 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -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;
}