Commit 9c945530 authored by Hans de Goede's avatar Hans de Goede Committed by Chanwoo Choi
Browse files

extcon: axp288: Add wakeup support 



On devices with an AXP288, we need to wakeup from suspend when a charger
is plugged in, so that we can do charger-type detection and so that the
axp288-charger driver, which listens for our extcon events, can configure
the input-current-limit accordingly.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
parent 995bb109

drivers/extcon/extcon-axp288.c

+32 −0
Original line number Diff line number Diff line
@@ -443,9 +443,40 @@ static int axp288_extcon_probe(struct platform_device *pdev) 
	/* Start charger cable type detection */

	axp288_extcon_enable(info);



	device_init_wakeup(dev, true);

	platform_set_drvdata(pdev, info);



	return 0;

}



static int __maybe_unused axp288_extcon_suspend(struct device *dev)

{

	struct axp288_extcon_info *info = dev_get_drvdata(dev);



	if (device_may_wakeup(dev))

		enable_irq_wake(info->irq[VBUS_RISING_IRQ]);



	return 0;

}



static int __maybe_unused axp288_extcon_resume(struct device *dev)

{

	struct axp288_extcon_info *info = dev_get_drvdata(dev);



	/*

	 * Wakeup when a charger is connected to do charger-type

	 * connection and generate an extcon event which makes the

	 * axp288 charger driver set the input current limit.

	 */

	if (device_may_wakeup(dev))

		disable_irq_wake(info->irq[VBUS_RISING_IRQ]);



	return 0;

}



static SIMPLE_DEV_PM_OPS(axp288_extcon_pm_ops, axp288_extcon_suspend,

			 axp288_extcon_resume);



static const struct platform_device_id axp288_extcon_table[] = {

	{ .name = "axp288_extcon" },

	{},
@@ -457,6 +488,7 @@ static struct platform_driver axp288_extcon_driver = { 
	.id_table = axp288_extcon_table,

	.driver = {

		.name = "axp288_extcon",

		.pm = &axp288_extcon_pm_ops,

	},

};

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