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Commit 7e82d6ff authored by Rabin Vincent's avatar Rabin Vincent Committed by Samuel Ortiz
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mfd: Handle the ab8500 irq for suspend/resume 



Ensure that the AB interrupt is only handled at a time when
all core drivers are resumed. Ensure that the AB interrupt
is marked as a wakeup interrupt.

Signed-off-by: default avatarRabin Vincent <rabin.vincent@stericsson.com>
Reviewed-by: default avatarJonas Aberg <jonas.aberg@stericsson.com>
Reviewed-by: default avatarMattias Wallin <mattias.wallin@stericsson.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 44f72e53

drivers/mfd/ab8500-i2c.c

+32 −0
Original line number Diff line number Diff line
@@ -101,10 +101,42 @@ static const struct platform_device_id ab8500_id[] = { 
	{ }

};



#ifdef CONFIG_PM

static int ab8500_i2c_suspend(struct device *dev)

{

	struct ab8500 *ab = dev_get_drvdata(dev);



	disable_irq(ab->irq);

	enable_irq_wake(ab->irq);



	return 0;

}



static int ab8500_i2c_resume(struct device *dev)

{

	struct ab8500 *ab = dev_get_drvdata(dev);



	disable_irq_wake(ab->irq);

	enable_irq(ab->irq);



	return 0;

}



static const struct dev_pm_ops ab8500_i2c_pm_ops = {

	.suspend	= ab8500_i2c_suspend,

	.resume		= ab8500_i2c_resume,

};



#define AB8500_I2C_PM_OPS	(&ab8500_i2c_pm_ops)

#else

#define AB8500_I2C_PM_OPS	NULL

#endif



static struct platform_driver ab8500_i2c_driver = {

	.driver = {

		.name = "ab8500-i2c",

		.owner = THIS_MODULE,

		.pm	= AB8500_I2C_PM_OPS,

	},

	.probe	= ab8500_i2c_probe,

	.remove	= __devexit_p(ab8500_i2c_remove),