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path: root/drivers/usb/gadget/s3c-hsotg.c
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Diffstat (limited to 'drivers/usb/gadget/s3c-hsotg.c')
-rw-r--r--drivers/usb/gadget/s3c-hsotg.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 69295ba9d99a..105b206cd844 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -340,7 +340,7 @@ static void s3c_hsotg_init_fifo(struct s3c_hsotg *hsotg)
/* currently we allocate TX FIFOs for all possible endpoints,
* and assume that they are all the same size. */
- for (ep = 0; ep <= 15; ep++) {
+ for (ep = 1; ep <= 15; ep++) {
val = addr;
val |= size << S3C_DPTXFSIZn_DPTxFSize_SHIFT;
addr += size;
@@ -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
@@ -1696,10 +1696,12 @@ static void s3c_hsotg_set_ep_maxpacket(struct s3c_hsotg *hsotg,
reg |= mpsval;
writel(reg, regs + S3C_DIEPCTL(ep));
- reg = readl(regs + S3C_DOEPCTL(ep));
- reg &= ~S3C_DxEPCTL_MPS_MASK;
- reg |= mpsval;
- writel(reg, regs + S3C_DOEPCTL(ep));
+ if (ep) {
+ reg = readl(regs + S3C_DOEPCTL(ep));
+ reg &= ~S3C_DxEPCTL_MPS_MASK;
+ reg |= mpsval;
+ writel(reg, regs + S3C_DOEPCTL(ep));
+ }
return;
@@ -1919,7 +1921,8 @@ static void s3c_hsotg_epint(struct s3c_hsotg *hsotg, unsigned int idx,
ints & S3C_DIEPMSK_TxFIFOEmpty) {
dev_dbg(hsotg->dev, "%s: ep%d: TxFIFOEmpty\n",
__func__, idx);
- s3c_hsotg_trytx(hsotg, hs_ep);
+ if (!using_dma(hsotg))
+ s3c_hsotg_trytx(hsotg, hs_ep);
}
}
}
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