usb: s3c-hsotg: Fix big buffers transfer in DMA mode

DMA address register shouldn't be updated manually if transfer size
requires multiple packets.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 8db23660b5e2d42dab04c85efa7eda2f3f804a8c..105b206cd8443dbe01bfd32b14555a51b22438b6 100644 (file)
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -741,7 +741,7 @@ static void s3c_hsotg_start_req(struct s3c_hsotg *hsotg,
        /* write size / packets */
        writel(epsize, hsotg->regs + epsize_reg);
 
-       if (using_dma(hsotg)) {
+       if (using_dma(hsotg) && !continuing) {
                unsigned int dma_reg;
 
                /* write DMA address to control register, buffer already