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usb: gadget: udc: atmel: change setting for DMA

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According to the datasheet, when transfer using DMA, the control
setting for IN packet only need END_BUF_EN, END_BUF_IE, CH_EN,
while for OUT packet, need more two bits END_TR_EN and END_TR_IE
to be configured.

Fixes: 914a3f3b37 (USB: add atmel_usba_udc driver)
Cc: <stable@vger.kernel.org> # 2.6.24+
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Bo Shen 2014-12-17 17:18:48 +08:00 committed by Felipe Balbi
parent 84a2b61b6e
commit f40afdddeb
1 changed files with 3 additions and 3 deletions
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6
drivers/usb/gadget/udc/atmel_usba_udc.c
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@ -716,10 +716,10 @@ static int queue_dma(struct usba_udc *udc, struct usba_ep *ep,
req->using_dma = 1;
req->ctrl = USBA_BF(DMA_BUF_LEN, req->req.length)
| USBA_DMA_CH_EN | USBA_DMA_END_BUF_IE
| USBA_DMA_END_TR_EN | USBA_DMA_END_TR_IE;
| USBA_DMA_END_BUF_EN;
if (ep->is_in)
req->ctrl |= USBA_DMA_END_BUF_EN;
if (!ep->is_in)
req->ctrl |= USBA_DMA_END_TR_EN | USBA_DMA_END_TR_IE;
/*
* Add this request to the queue and submit for DMA if