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fotg210-udc: pass struct device to DMA API functions 

The DMA API generally relies on a struct device to work properly, and
only barely works without one for legacy reasons.  Pass the easily
available struct device from the platform_device to remedy this.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Christoph Hellwig 2019-02-01 09:47:56 +01:00 committed by Felipe Balbi
parent 8c7ffa5ebd
commit e26bdb0131
1 changed files with 4 additions and 3 deletions
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7
drivers/usb/gadget/udc/fotg210-udc.c
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@ -326,6 +326,7 @@ static void fotg210_wait_dma_done(struct fotg210_ep *ep)
static void fotg210_start_dma(struct fotg210_ep *ep,
struct fotg210_request *req)
{
struct device *dev = &ep->fotg210->gadget.dev;
dma_addr_t d;
u8 *buffer;
u32 length;
@ -348,10 +349,10 @@ static void fotg210_start_dma(struct fotg210_ep *ep,
length = req->req.length;
}
d = dma_map_single(NULL, buffer, length,
d = dma_map_single(dev, buffer, length,
ep->dir_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
if (dma_mapping_error(NULL, d)) {
if (dma_mapping_error(dev, d)) {
pr_err("dma_mapping_error\n");
return;
}
@ -366,7 +367,7 @@ static void fotg210_start_dma(struct fotg210_ep *ep,
/* update actual transfer length */
req->req.actual += length;
dma_unmap_single(NULL, d, length, DMA_TO_DEVICE);
dma_unmap_single(dev, d, length, DMA_TO_DEVICE);
}
static void fotg210_ep0_queue(struct fotg210_ep *ep,