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Commit 4ea81266 authored by Dmitry Eremin-Solenikov's avatar Dmitry Eremin-Solenikov Committed by Anton Vorontsov
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gpio-charger: Support wakeup events 



Add support for using gpio-charger IRQ as a wakeup event.

Signed-off-by: default avatarDmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: default avatarAnton Vorontsov <anton@enomsg.org>
parent 55e64701

drivers/power/gpio-charger.c

+18 −1
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ 
struct gpio_charger {

	const struct gpio_charger_platform_data *pdata;

	unsigned int irq;

	bool wakeup_enabled;



	struct power_supply charger;

};
@@ -136,6 +137,8 @@ static int gpio_charger_probe(struct platform_device *pdev) 


	platform_set_drvdata(pdev, gpio_charger);



	device_init_wakeup(&pdev->dev, 1);



	return 0;



err_gpio_free:
@@ -159,18 +162,32 @@ static int gpio_charger_remove(struct platform_device *pdev) 
}



#ifdef CONFIG_PM_SLEEP

static int gpio_charger_suspend(struct device *dev)

{

	struct gpio_charger *gpio_charger = dev_get_drvdata(dev);



	if (device_may_wakeup(dev))

		gpio_charger->wakeup_enabled =

			enable_irq_wake(gpio_charger->irq);



	return 0;

}



static int gpio_charger_resume(struct device *dev)

{

	struct platform_device *pdev = to_platform_device(dev);

	struct gpio_charger *gpio_charger = platform_get_drvdata(pdev);



	if (gpio_charger->wakeup_enabled)

		disable_irq_wake(gpio_charger->irq);

	power_supply_changed(&gpio_charger->charger);



	return 0;

}

#endif



static SIMPLE_DEV_PM_OPS(gpio_charger_pm_ops, NULL, gpio_charger_resume);

static SIMPLE_DEV_PM_OPS(gpio_charger_pm_ops,

		gpio_charger_suspend, gpio_charger_resume);



static struct platform_driver gpio_charger_driver = {

	.probe = gpio_charger_probe,