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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: Rabin Vincent <rabin.vincent@stericsson.com>
Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com>
Reviewed-by: Mattias Wallin <mattias.wallin@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Rabin Vincent 2012-04-17 09:30:24 +02:00 committed by Samuel Ortiz
parent 44f72e5338
commit 7e82d6ff5d
1 changed files with 32 additions and 0 deletions
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32
drivers/mfd/ab8500-i2c.c
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@ -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),