Commit 9772b47a authored Apr 12, 2016 by Roger Quadros Committed by Felipe Balbi Apr 18, 2016

usb: dwc3: gadget: Fix suspend/resume during device mode



Gadget controller might not be always active during system
suspend/resume as gadget driver might not have yet been loaded or
might have been unloaded prior to system suspend.

Check if we're active and only then perform
necessary actions during suspend/resume.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

parent e6bdf819

drivers/usb/dwc3/gadget.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -2936,6 +2936,9 @@ void dwc3_gadget_exit(struct dwc3 *dwc)

		int dwc3_gadget_suspend(struct dwc3 *dwc)
		{
		if (!dwc->gadget_driver)
		return 0;

		if (dwc->pullups_connected) {
		dwc3_gadget_disable_irq(dwc);
		dwc3_gadget_run_stop(dwc, true, true);
		@@ -2954,6 +2957,9 @@ int dwc3_gadget_resume(struct dwc3 *dwc)
		struct dwc3_ep *dep;
		int ret;

		if (!dwc->gadget_driver)
		return 0;

		/* Start with SuperSpeed Default */
		dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512);