[Meego-kernel] [PATCH 6/9] intel_mid_keypad: add basic power management

[Kristen Carlson Accardi]

Signed-off-by: Kristen Carlson Accardi <kristen at linux.intel.com>
---
 drivers/input/keyboard/intel_mid_keypad.c |   22 ++++++++++++++++++++--
 1 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/drivers/input/keyboard/intel_mid_keypad.c b/drivers/input/keyboard/intel_mid_keypad.c
index 3c5b5cd..33c6300 100644
--- a/drivers/input/keyboard/intel_mid_keypad.c
+++ b/drivers/input/keyboard/intel_mid_keypad.c
@@ -426,14 +426,32 @@ static const struct pci_device_id keypad_pci_tbl[] = {
 };
 MODULE_DEVICE_TABLE(pci, keypad_pci_tbl);
 
+#ifdef CONFIG_PM
+static int mrst_keypad_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	if (device_may_wakeup(&pdev->dev))
+		enable_irq_wake(pdev->irq);
+
+	return 0;
+}
+
+static int mrst_keypad_resume(struct pci_dev *pdev)
+{
+	if (device_may_wakeup(&pdev->dev))
+		disable_irq_wake(pdev->irq);
+
+	return 0;
+}
+#endif
+
 static struct pci_driver mrst_keypad_driver = {
 	.name		= DRV_NAME,
 	.id_table	= keypad_pci_tbl,
 	.probe		= mrst_keypad_probe,
 	.remove		= __devexit_p(mrst_keypad_remove),
 #ifdef CONFIG_PM
-	.suspend	= NULL,
-	.resume	= NULL,
+	.suspend	= mrst_keypad_suspend,
+	.resume		= mrst_keypad_resume,
 #endif /* CONFIG_PM */
 };
 
-- 
1.7.3.1