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Commit f8efa766 authored by Peter Chen's avatar Peter Chen Committed by Greg Kroah-Hartman
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usb: chipidea: add usb as system wakeup source 



The USB signal can be system wakeup source, this patch add the
support, for how to enable it, see Documentation/usb/chipidea.txt.
Since USB wakeup enable logic is vendor/platform specific, the
glue layer needs to implement it to support this feature.

Signed-off-by: default avatarPeter Chen <peter.chen@freescale.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e14db48d

drivers/usb/chipidea/core.c

+10 −0
Original line number Diff line number Diff line
@@ -808,6 +808,8 @@ static int ci_hdrc_probe(struct platform_device *pdev) 
	if (ci_otg_is_fsm_mode(ci))

		ci_hdrc_otg_fsm_start(ci);



	device_set_wakeup_capable(&pdev->dev, true);



	ret = dbg_create_files(ci);

	if (!ret)

		return 0;
@@ -898,6 +900,11 @@ static int ci_suspend(struct device *dev) 
		return 0;

	}



	if (device_may_wakeup(dev)) {

		usb_phy_set_wakeup(ci->usb_phy, true);

		enable_irq_wake(ci->irq);

	}



	ci_controller_suspend(ci);



	return 0;
@@ -908,6 +915,9 @@ static int ci_resume(struct device *dev) 
	struct ci_hdrc *ci = dev_get_drvdata(dev);

	int ret;



	if (device_may_wakeup(dev))

		disable_irq_wake(ci->irq);



	ret = ci_controller_resume(dev);

	if (ret)

		return ret;