On 12/22/2011 04:55 PM, Haojian Zhuang wrote:
> From: Kevin Liu <kliu5@xxxxxxxxxxx>
>
> Signed-off-by: Kevin Liu <kliu5@xxxxxxxxxxx>
> ---
> drivers/input/misc/max8925_onkey.c | 35 +++++++++++++++++++++++++++++++++++
> 1 files changed, 35 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/input/misc/max8925_onkey.c b/drivers/input/misc/max8925_onkey.c
> index 7de0ded..ce07ae2 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 +159,44 @@ static int __devexit max8925_onkey_remove(struct platform_device *pdev)
> return 0;
> }
>
> +#ifdef CONFIG_PM
> +static int max8925_onkey_suspend(struct device *dev)
> +{
> + struct platform_device *pdev = to_platform_device(dev);
> + struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
> +
> + if (device_may_wakeup(dev)) {
> + chip->wakeup_flag |= 1 << (onkey_irq[0] - chip->irq_base);
> + chip->wakeup_flag |= 1 << (onkey_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_chip *chip = dev_get_drvdata(pdev->dev.parent);
> +
> + if (device_may_wakeup(dev)) {
> + chip->wakeup_flag &= ~(1 << (onkey_irq[0] - chip->irq_base));
> + chip->wakeup_flag &= ~(1 << (onkey_irq[1] - chip->irq_base));
> + }
> + return 0;
> +}
> +
> +static struct dev_pm_ops max8925_onkey_pm_ops = {
> + .suspend = max8925_onkey_suspend,
> + .resume = max8925_onkey_resume,
> +}
You can use SIMPLE_DEV_PM_OPS here.
Thanks
-Wanlong Gao
> +#endif
> +
> static struct platform_driver max8925_onkey_driver = {
> .driver = {
> .name = "max8925-onkey",
> .owner = THIS_MODULE,
> +#ifdef CONFIG_PM
> + .pm = &max8925_onkey_pm_ops,
> +#endif
> },
> .probe = max8925_onkey_probe,
> .remove = __devexit_p(max8925_onkey_remove),
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