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Input: bf54x-keys - add infrastructure for keypad wakeups

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Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Michael Hennerich 2008-04-18 00:25:00 -04:00 committed by Dmitry Torokhov
parent d7b5247bbc
commit d0478d0ad7
1 changed files with 32 additions and 3 deletions
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35
drivers/input/keyboard/bf54x-keys.c
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@ -312,6 +312,8 @@ static int __devinit bfin_kpad_probe(struct platform_device *pdev)
bfin_write_KPAD_CTL(bfin_read_KPAD_CTL() | KPAD_EN);
device_init_wakeup(&pdev->dev, 1);
printk(KERN_ERR DRV_NAME
": Blackfin BF54x Keypad registered IRQ %d\n", bf54x_kpad->irq);
@ -354,13 +356,40 @@ static int __devexit bfin_kpad_remove(struct platform_device *pdev)
return 0;
}
#ifdef CONFIG_PM
static int bfin_kpad_suspend(struct platform_device *pdev, pm_message_t state)
{
struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
if (device_may_wakeup(&pdev->dev))
enable_irq_wake(bf54x_kpad->irq);
return 0;
}
static int bfin_kpad_resume(struct platform_device *pdev)
{
struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
if (device_may_wakeup(&pdev->dev))
disable_irq_wake(bf54x_kpad->irq);
return 0;
}
#else
# define bfin_kpad_suspend NULL
# define bfin_kpad_resume NULL
#endif
struct platform_driver bfin_kpad_device_driver = {
.probe = bfin_kpad_probe,
.remove = __devexit_p(bfin_kpad_remove),
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
}
},
.probe = bfin_kpad_probe,
.remove = __devexit_p(bfin_kpad_remove),
.suspend = bfin_kpad_suspend,
.resume = bfin_kpad_resume,
};
static int __init bfin_kpad_init(void)