---

yaml --- r: 354593 b: refs/heads/master c: a70b844 h: refs/heads/master i: 354591: 4e118d1 v: v3
git-mirror · Jan 17, 2013 · 57d6b3c · 57d6b3c
1 parent 606b384
commit 57d6b3c
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Showing 2 changed files with 15 additions and 7 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8df4ce75189807783c4bb4e4337e0f89283e6ca3
+refs/heads/master: a70b84421be5eebde59b0c9e15d20f316e1fbea9
diff --git a/trunk/drivers/usb/musb/musb_host.c b/trunk/drivers/usb/musb/musb_host.c
@@ -756,7 +756,13 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
 		/* general endpoint setup */
 		if (epnum) {
 			/* flush all old state, set default */
-			musb_h_tx_flush_fifo(hw_ep);
+			/*
+			 * We could be flushing valid
+			 * packets in double buffering
+			 * case
+			 */
+			if (!hw_ep->tx_double_buffered)
+				musb_h_tx_flush_fifo(hw_ep);
 
 			/*
 			 * We must not clear the DMAMODE bit before or in
@@ -773,11 +779,13 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
 					);
 			csr |= MUSB_TXCSR_MODE;
 
-			if (usb_gettoggle(urb->dev, qh->epnum, 1))
-				csr |= MUSB_TXCSR_H_WR_DATATOGGLE
-					| MUSB_TXCSR_H_DATATOGGLE;
-			else
-				csr |= MUSB_TXCSR_CLRDATATOG;
+			if (!hw_ep->tx_double_buffered) {
+				if (usb_gettoggle(urb->dev, qh->epnum, 1))
+					csr |= MUSB_TXCSR_H_WR_DATATOGGLE
+						| MUSB_TXCSR_H_DATATOGGLE;
+				else
+					csr |= MUSB_TXCSR_CLRDATATOG;
+			}
 
 			musb_writew(epio, MUSB_TXCSR, csr);
 			/* REVISIT may need to clear FLUSHFIFO ... */