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Commit 84566abb authored by Tomoya MORINAGA's avatar Tomoya MORINAGA Committed by Felipe Balbi
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usb: gadget: pch_udc: Fix USB suspend issue 



ISSUE:
After USB Suspend, a system rarely freezes.

CAUSE:
When USB Suspend occurred, the driver is not notifying
a gadget of the event.

Signed-off-by: default avatarTomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent c802672c

drivers/usb/gadget/pch_udc.c

+8 −1
Original line number Diff line number Diff line
@@ -2475,8 +2475,15 @@ static void pch_udc_dev_isr(struct pch_udc_dev *dev, u32 dev_intr) 
	if (dev_intr & UDC_DEVINT_SC)

		pch_udc_svc_cfg_interrupt(dev);

	/* USB Suspend interrupt */

	if (dev_intr & UDC_DEVINT_US)

	if (dev_intr & UDC_DEVINT_US) {

		if (dev->driver

			&& dev->driver->suspend) {

			spin_unlock(&dev->lock);

			dev->driver->suspend(&dev->gadget);

			spin_lock(&dev->lock);

		}

		dev_dbg(&dev->pdev->dev, "USB_SUSPEND\n");

	}

	/* Clear the SOF interrupt, if enabled */

	if (dev_intr & UDC_DEVINT_SOF)

		dev_dbg(&dev->pdev->dev, "SOF\n");