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Commit 208c4343 authored by Sundar Iyer's avatar Sundar Iyer Committed by Samuel Ortiz
Browse files

mfd: Add PM support to STMPE devices 



Add PM helpers to STMPE and add support to enable wakeup from low power
states

Acked-by: default avatarRabin VINCENT <rabin.vincent@stericsson.com>
Acked-by: default avatarLinus WALLEIJ <linus.walleij@stericsson.com>
Signed-off-by: default avatarSundar Iyer <sundar.iyer@stericsson.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 02bf0749

drivers/mfd/stmpe.c

+32 −0
Original line number Diff line number Diff line
@@ -873,6 +873,28 @@ static int __devinit stmpe_devices_init(struct stmpe *stmpe) 
	return ret;

}



#ifdef CONFIG_PM

static int stmpe_suspend(struct device *dev)

{

	struct i2c_client *i2c = to_i2c_client(dev);



	if (device_may_wakeup(&i2c->dev))

		enable_irq_wake(i2c->irq);



	return 0;

}



static int stmpe_resume(struct device *dev)

{

	struct i2c_client *i2c = to_i2c_client(dev);



	if (device_may_wakeup(&i2c->dev))

		disable_irq_wake(i2c->irq);



	return 0;

}

#endif



static int __devinit stmpe_probe(struct i2c_client *i2c,

				 const struct i2c_device_id *id)

{
@@ -960,9 +982,19 @@ static const struct i2c_device_id stmpe_id[] = { 
};

MODULE_DEVICE_TABLE(i2c, stmpe_id);



#ifdef CONFIG_PM

static const struct dev_pm_ops stmpe_dev_pm_ops = {

	.suspend	= stmpe_suspend,

	.resume		= stmpe_resume,

};

#endif



static struct i2c_driver stmpe_driver = {

	.driver.name	= "stmpe",

	.driver.owner	= THIS_MODULE,

#ifdef CONFIG_PM

	.driver.pm	= &stmpe_dev_pm_ops,

#endif

	.probe		= stmpe_probe,

	.remove		= __devexit_p(stmpe_remove),

	.id_table	= stmpe_id,