Lines Matching refs:DMA

8 - SSP PIO and SSP DMA data transfers.
32 The "pxa2xx_spi_master.enable_dma" field informs the driver that SSP DMA should
33 be used.  This caused the driver to acquire two DMA channels: rx_channel and
34 tx_channel.  The rx_channel has a higher DMA service priority the tx_channel.
35 See the "PXA2xx Developer Manual" section "DMA Controller".
56 	.enable_dma = 1, /* Enables NSSP DMA */
109 The "pxa2xx_spi_chip.dma_burst_size" field is used to configure PXA2xx DMA
111 the PXA2xx "Developer Manual" sections on the DMA controller and SSP Controllers
205 DMA and PIO I/O Support
207 The pxa2xx_spi driver supports both DMA and interrupt driven PIO message
208 transfers.  The driver defaults to PIO mode and DMA transfers must be enabled
209 by setting the "enable_dma" flag in the "pxa2xx_spi_master" structure.  The DMA
210 mode supports both coherent and stream based DMA mappings.
223 	use coherent DMA mode
226 	use streaming DMA mode