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Commit 024783ef authored by Laxman Dewangan's avatar Laxman Dewangan Committed by Chanwoo Choi
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extcon: palams: add support for suspend/resume 



Add suspend/resume callbacks and support for wakeup from
suspend on USB HOST or USB Device cable insertion or removal.

Signed-off-by: default avatarLaxman Dewangan <ldewangan@nvidia.com>
Acked-by: default avatarGraeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: default avatarMyungjoo Ham <myungjoo.ham@samsung.com>
parent 002945f0

drivers/extcon/extcon-palmas.c

+35 −3
Original line number Diff line number Diff line
@@ -181,7 +181,8 @@ static int palmas_usb_probe(struct platform_device *pdev) 


	status = devm_request_threaded_irq(palmas_usb->dev, palmas_usb->id_irq,

			NULL, palmas_id_irq_handler,

			IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,

			IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING |

			IRQF_ONESHOT | IRQF_EARLY_RESUME,

			"palmas_usb_id", palmas_usb);

	if (status < 0) {

		dev_err(&pdev->dev, "can't get IRQ %d, err %d\n",
@@ -191,7 +192,8 @@ static int palmas_usb_probe(struct platform_device *pdev) 


	status = devm_request_threaded_irq(palmas_usb->dev,

			palmas_usb->vbus_irq, NULL, palmas_vbus_irq_handler,

			IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,

			IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING |

			IRQF_ONESHOT | IRQF_EARLY_RESUME,

			"palmas_usb_vbus", palmas_usb);

	if (status < 0) {

		dev_err(&pdev->dev, "can't get IRQ %d, err %d\n",
@@ -200,7 +202,7 @@ static int palmas_usb_probe(struct platform_device *pdev) 
	}



	palmas_enable_irq(palmas_usb);



	device_set_wakeup_capable(&pdev->dev, true);

	return 0;



fail_extcon:
@@ -218,6 +220,35 @@ static int palmas_usb_remove(struct platform_device *pdev) 
	return 0;

}



#ifdef CONFIG_PM_SLEEP

static int palmas_usb_suspend(struct device *dev)

{

	struct palmas_usb *palmas_usb = dev_get_drvdata(dev);



	if (device_may_wakeup(dev)) {

		enable_irq_wake(palmas_usb->vbus_irq);

		enable_irq_wake(palmas_usb->id_irq);

	}

	return 0;

}



static int palmas_usb_resume(struct device *dev)

{

	struct palmas_usb *palmas_usb = dev_get_drvdata(dev);



	if (device_may_wakeup(dev)) {

		disable_irq_wake(palmas_usb->vbus_irq);

		disable_irq_wake(palmas_usb->id_irq);

	}

	return 0;

};

#endif



static const struct dev_pm_ops palmas_pm_ops = {

	SET_SYSTEM_SLEEP_PM_OPS(palmas_usb_suspend,

				palmas_usb_resume)

};



static struct of_device_id of_palmas_match_tbl[] = {

	{ .compatible = "ti,palmas-usb", },

	{ .compatible = "ti,twl6035-usb", },
@@ -231,6 +262,7 @@ static struct platform_driver palmas_usb_driver = { 
		.name = "palmas-usb",

		.of_match_table = of_palmas_match_tbl,

		.owner = THIS_MODULE,

		.pm = &palmas_pm_ops,

	},

};