[PATCH 4.9 001/148] usb: gadget: udc: renesas_usb3: fix number of the pipes

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>

commit a58204ab91ad8cae4d8474aa0ba5d1fc504860c9 upstream.

This controller on R-Car Gen3 has 6 pipes that included PIPE 0 for
control actually. But, the datasheet has error in writing as it has
31 pipes. (However, the previous code defined 30 pipes wrongly...)

Anyway, this patch fixes it.

Fixes: 746bfe63bba3 ("usb: gadget: renesas_usb3: add support for Renesas USB3.0 peripheral controller")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/usb/gadget/udc/renesas_usb3.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/gadget/udc/renesas_usb3.c
+++ b/drivers/usb/gadget/udc/renesas_usb3.c
@@ -222,7 +222,7 @@
 #define USB3_EP0_SS_MAX_PACKET_SIZE	512
 #define USB3_EP0_HSFS_MAX_PACKET_SIZE	64
 #define USB3_EP0_BUF_SIZE		8
-#define USB3_MAX_NUM_PIPES		30
+#define USB3_MAX_NUM_PIPES		6	/* This includes PIPE 0 */
 #define USB3_WAIT_US			3
 
 struct renesas_usb3;