Input: qt1070 - add power management ops

Add power management ops for qt1070, it may be a wakeup source.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/drivers/input/keyboard/qt1070.c b/drivers/input/keyboard/qt1070.c
index 42b773b3125a..6c561ec3cc09 100644
--- a/drivers/input/keyboard/qt1070.c
+++ b/drivers/input/keyboard/qt1070.c
@@ -243,6 +243,32 @@ static int qt1070_remove(struct i2c_client *client)
         return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int qt1070_suspend(struct device *dev)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        struct qt1070_data *data = i2c_get_clientdata(client);
+
+        if (device_may_wakeup(dev))
+                enable_irq_wake(data->irq);
+
+        return 0;
+}
+
+static int qt1070_resume(struct device *dev)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        struct qt1070_data *data = i2c_get_clientdata(client);
+
+        if (device_may_wakeup(dev))
+                disable_irq_wake(data->irq);
+
+        return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(qt1070_pm_ops, qt1070_suspend, qt1070_resume);
+
 static const struct i2c_device_id qt1070_id[] = {
         { "qt1070", 0 },
         { },
@@ -253,6 +279,7 @@ static struct i2c_driver qt1070_driver = {
         .driver = {
                 .name   = "qt1070",
                 .owner  = THIS_MODULE,
+                .pm     = &qt1070_pm_ops,
         },
         .id_table       = qt1070_id,
         .probe          = qt1070_probe,