[PATCH 2/3] misc: max8925_onkey: add function to work as wakeup source

Haojian Zhuang
2012-01-10T10:22:24Z

From: Kevin Liu <kliu5@marvell.com>

Signed-off-by: Kevin Liu <kliu5@marvell.com>
---
drivers/input/misc/max8925_onkey.c | 32 ++++++++++++++++++++++++++++++++
1 files changed, 32 insertions(+), 0 deletions(-)

diff --git a/drivers/input/misc/max8925_onkey.c b/drivers/input/misc/max8925_onkey.c
index 7de0ded..b0fe395 100644
--- a/drivers/input/misc/max8925_onkey.c
+++ b/drivers/input/misc/max8925_onkey.c
@@ -122,6 +122,7 @@ static int __devinit max8925_onkey_probe(struct platform_device *pdev)
info->idev->evbit[0] = BIT_MASK(EV_KEY);
info->idev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);

+ device_init_wakeup(&pdev->dev, 1);

error = input_register_device(info->idev);
if (error) {
@@ -158,10 +159,41 @@ static int __devexit max8925_onkey_remove(struct platform_device *pdev)
return 0;
}

+#ifdef CONFIG_PM_SLEEP
+static int max8925_onkey_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct max8925_onkey_info *info = platform_get_drvdata(pdev);
+ struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
+
+ if (device_may_wakeup(dev)) {
+ chip->wakeup_flag |= 1 << (info->irq[0] - chip->irq_base);
+ chip->wakeup_flag |= 1 << (info->irq[1] - chip->irq_base);
+ }
+ return 0;
+}
+
+static int max8925_onkey_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct max8925_onkey_info *info = platform_get_drvdata(pdev);
+ struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
+
+ if (device_may_wakeup(dev)) {
+ chip->wakeup_flag &= ~(1 << (info->irq[0] - chip->irq_base));
+ chip->wakeup_flag &= ~(1 << (info->irq[1] - chip->irq_base));
+ }
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(max8925_onkey_pm_ops, max8925_onkey_suspend, max8925_onkey_resume);
+
static struct platform_driver max8925_onkey_driver = {
.driver = {
.name = "max8925-onkey",
.owner = THIS_MODULE,
+ .pm = &max8925_onkey_pm_ops,
},
.probe = max8925_onkey_probe,
.remove = __devexit_p(max8925_onkey_remove),
--
1.7.0.4