1 files changed, 15 insertions, 1 deletions

diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index c2448950a8d..2b025200a69 100644
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -902,7 +902,7 @@ static irqreturn_t s3c2410_udc_irq(int dummy, void *_dev)
         int pwr_reg;
         int ep0csr;
         int i;
-        u32 idx;
+        u32 idx, idx2;
         unsigned long flags;
 
         spin_lock_irqsave(&dev->lock, flags);
@@ -1017,6 +1017,20 @@ static irqreturn_t s3c2410_udc_irq(int dummy, void *_dev)
                 }
         }
 
+        /* what else causes this interrupt? a receive! who is it? */
+        if (!usb_status && !usbd_status && !pwr_reg && !ep0csr) {
+                for (i = 1; i < S3C2410_ENDPOINTS; i++) {
+                        idx2 = udc_read(S3C2410_UDC_INDEX_REG);
+                        udc_write(i, S3C2410_UDC_INDEX_REG);
+
+                        if (udc_read(S3C2410_UDC_OUT_CSR1_REG) & 0x1)
+                                s3c2410_udc_handle_ep(&dev->ep[i]);
+
+                        /* restore index */
+                        udc_write(idx2, S3C2410_UDC_INDEX_REG);
+                }
+        }
+
         dprintk(DEBUG_VERBOSE, "irq: %d s3c2410_udc_done.\n", IRQ_USBD);
 
         /* Restore old index */