From: Anton Tikhomirov <av.tikhomirov@samsung.com>
Date: Tue, 6 Mar 2012 05:09:19 +0000 (+0900)
Subject: usb: s3c-hsotg: Fix big buffers transfer in DMA mode
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=db1d8ba36551bf55222c7961d9e9a1195a612fde;p=~shefty%2Frdma-dev.git

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 8db23660b5e..105b206cd84 100644
--- 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