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Commit 6fc6f4b8 authored by Pascal Huerst's avatar Pascal Huerst Committed by Felipe Balbi
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usb: musb: Disable interrupts on suspend, enable them on resume 



In certain situations, an interrupt triggers on resume, before musb_start()
has been called. This has been observed to cause enumeration issues after
suspend/resume cycles with AM335x.

Signed-off-by: default avatarPascal Huerst <pascal.huerst@gmail.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 6527cc27

drivers/usb/musb/musb_core.c

+6 −0
Original line number Diff line number Diff line
@@ -2449,6 +2449,9 @@ static int musb_suspend(struct device *dev) 
	struct musb	*musb = dev_to_musb(dev);

	unsigned long	flags;



	musb_platform_disable(musb);

	musb_generic_disable(musb);



	spin_lock_irqsave(&musb->lock, flags);



	if (is_peripheral_active(musb)) {
@@ -2502,6 +2505,9 @@ static int musb_resume(struct device *dev) 
	pm_runtime_disable(dev);

	pm_runtime_set_active(dev);

	pm_runtime_enable(dev);



	musb_start(musb);



	return 0;

}