From adab30d73844076b6ca9cd3e6382f5db3a44ded4 Mon Sep 17 00:00:00 2001 From: Kevin Liu Date: Mon, 5 Mar 2012 22:24:54 -0800 Subject: [PATCH] Input: max8925_onkey - allow to be used as a wakeup source Implement suspend and resume methods to set up devices as wakeup source. Signed-off-by: Kevin Liu Signed-off-by: Dmitry Torokhov --- drivers/input/misc/max8925_onkey.c | 34 ++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/drivers/input/misc/max8925_onkey.c b/drivers/input/misc/max8925_onkey.c index 23cf08271049..27174770b13a 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 +159,43 @@ 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),