Documentation/DMA-API.txt: remove deprecated function descriptions

Note: <nents> must be the number you passed in, *not* the number of

Note: <nents> must be the number you passed in, *not* the number of

physical entries returned.

physical entries returned.

void

dma_sync_single(struct device *dev, dma_addr_t dma_handle, size_t size,

		enum dma_data_direction direction)

void

pci_dma_sync_single(struct pci_dev *hwdev, dma_addr_t dma_handle,

			   size_t size, int direction)

void

dma_sync_sg(struct device *dev, struct scatterlist *sg, int nelems,

			  enum dma_data_direction direction)

void

pci_dma_sync_sg(struct pci_dev *hwdev, struct scatterlist *sg,

		       int nelems, int direction)

Synchronise a single contiguous or scatter/gather mapping.  All the

parameters must be the same as those passed into the single mapping

API.

Notes:  You must do this:

- Before reading values that have been written by DMA from the device

  (use the DMA_FROM_DEVICE direction)

- After writing values that will be written to the device using DMA

  (use the DMA_TO_DEVICE) direction

- before *and* after handing memory to the device if the memory is

  DMA_BIDIRECTIONAL

See also dma_map_single().

dma_addr_t

dma_addr_t

dma_map_single_attrs(struct device *dev, void *cpu_addr, size_t size,

dma_map_single_attrs(struct device *dev, void *cpu_addr, size_t size,

		     enum dma_data_direction dir,

		     enum dma_data_direction dir,