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")
Cc: <stable@xxxxxxxxxxxxxxx> # v4.5+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
---
drivers/usb/gadget/udc/renesas_usb3.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c
index 63a2061..6b3e8ad 100644
--- a/drivers/usb/gadget/udc/renesas_usb3.c
+++ b/drivers/usb/gadget/udc/renesas_usb3.c
@@ -254,7 +254,7 @@
#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
#define USB3_DMA_NUM_SETTING_AREA 4
/*
--
1.9.1
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