diff options
| author | Felipe Balbi <balbi@ti.com> | 2011-09-08 18:16:21 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2011-09-09 13:05:26 +0300 |
| commit | bb7ea2841e9c8669ac31e4262f585729bf779bff (patch) | |
| tree | 16e8eab49bf4c834c587b40f7bfbef5986e2f021 /drivers/usb/dwc3 | |
| parent | 771f184ecebf34929a849eaa707aa463234254f7 (diff) | |
| download | op-kernel-dev-bb7ea2841e9c8669ac31e4262f585729bf779bff.zip op-kernel-dev-bb7ea2841e9c8669ac31e4262f585729bf779bff.tar.gz | |
usb: dwc3: gadget: drop the useless dma_sync_single* calls
if req->dma isn't DMA_ADDR_INVALID it means gadget driver
mapped the request or allocated from coherent, so it's
unnecessary to do anything.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 6c64c73..2ea2fc8 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -71,11 +71,6 @@ void dwc3_map_buffer_to_dma(struct dwc3_request *req) req->request.length, req->direction ? DMA_TO_DEVICE : DMA_FROM_DEVICE); req->mapped = true; - } else { - dma_sync_single_for_device(dwc->dev, req->request.dma, - req->request.length, req->direction - ? DMA_TO_DEVICE : DMA_FROM_DEVICE); - req->mapped = false; } } @@ -94,10 +89,6 @@ void dwc3_unmap_buffer_from_dma(struct dwc3_request *req) ? DMA_TO_DEVICE : DMA_FROM_DEVICE); req->mapped = 0; req->request.dma = DMA_ADDR_INVALID; - } else { - dma_sync_single_for_cpu(dwc->dev, req->request.dma, - req->request.length, req->direction - ? DMA_TO_DEVICE : DMA_FROM_DEVICE); } } |
