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path: root/drivers/usb/musb/tusb6010_omap.c
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Diffstat (limited to 'drivers/usb/musb/tusb6010_omap.c')
-rw-r--r--drivers/usb/musb/tusb6010_omap.c34
1 files changed, 1 insertions, 33 deletions
diff --git a/drivers/usb/musb/tusb6010_omap.c b/drivers/usb/musb/tusb6010_omap.c
index f8671110168b..1c4592d753bf 100644
--- a/drivers/usb/musb/tusb6010_omap.c
+++ b/drivers/usb/musb/tusb6010_omap.c
@@ -173,13 +173,7 @@ static void tusb_omap_dma_cb(int lch, u16 ch_status, void *data)
channel->status = MUSB_DMA_STATUS_FREE;
- /* Handle only RX callbacks here. TX callbacks must be handled based
- * on the TUSB DMA status interrupt.
- * REVISIT: Use both TUSB DMA status interrupt and OMAP DMA callback
- * interrupt for RX and TX.
- */
- if (!chdat->tx)
- musb_dma_completion(musb, chdat->epnum, chdat->tx);
+ musb_dma_completion(musb, chdat->epnum, chdat->tx);
/* We must terminate short tx transfers manually by setting TXPKTRDY.
* REVISIT: This same problem may occur with other MUSB dma as well.
@@ -464,22 +458,12 @@ tusb_omap_dma_allocate(struct dma_controller *c,
int ret, i;
struct tusb_omap_dma *tusb_dma;
struct musb *musb;
- void __iomem *tbase;
struct dma_channel *channel = NULL;
struct tusb_omap_dma_ch *chdat = NULL;
struct tusb_dma_data *dma_data = NULL;
- u32 reg;
tusb_dma = container_of(c, struct tusb_omap_dma, controller);
musb = tusb_dma->controller.musb;
- tbase = musb->ctrl_base;
-
- reg = musb_readl(tbase, TUSB_DMA_INT_MASK);
- if (tx)
- reg &= ~(1 << hw_ep->epnum);
- else
- reg &= ~(1 << (hw_ep->epnum + 15));
- musb_writel(tbase, TUSB_DMA_INT_MASK, reg);
/* REVISIT: Why does dmareq5 not work? */
if (hw_ep->epnum == 0) {
@@ -548,26 +532,10 @@ static void tusb_omap_dma_release(struct dma_channel *channel)
{
struct tusb_omap_dma_ch *chdat = to_chdat(channel);
struct musb *musb = chdat->musb;
- void __iomem *tbase = musb->ctrl_base;
- u32 reg;
dev_dbg(musb->controller, "ep%i ch%i\n", chdat->epnum,
chdat->dma_data->ch);
- reg = musb_readl(tbase, TUSB_DMA_INT_MASK);
- if (chdat->tx)
- reg |= (1 << chdat->epnum);
- else
- reg |= (1 << (chdat->epnum + 15));
- musb_writel(tbase, TUSB_DMA_INT_MASK, reg);
-
- reg = musb_readl(tbase, TUSB_DMA_INT_CLEAR);
- if (chdat->tx)
- reg |= (1 << chdat->epnum);
- else
- reg |= (1 << (chdat->epnum + 15));
- musb_writel(tbase, TUSB_DMA_INT_CLEAR, reg);
-
channel->status = MUSB_DMA_STATUS_UNKNOWN;
omap_stop_dma(chdat->dma_data->ch);