usb: gadget: pch_udc: Fix USB suspend issue

[linux-flexiantxendom0.git] / drivers / usb / gadget / pch_udc.c

diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c
index 8080780..87ba9cb 100644 (file)
--- a/drivers/usb/gadget/pch_udc.c
+++ b/drivers/usb/gadget/pch_udc.c
@@ -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");