On Fri, May 15, 2015 at 03:38:42PM +0800, leilk liu wrote: > On Tue, 2015-05-12 at 17:05 +0100, Mark Brown wrote: > > Implement can_dma() - look for drivers providing that for examples. > MTK spi hardware uses the dmaengine in spi controller. According to > datasheet, spi driver just need to enable dma register bit and write a > physical address to relevant dma address register, so I think it may be > complex while the driver supports can_dma. That's how a very large proportion of devices that work with DMA are done - why would this be complicated? All can_dma() does is report if DMA is possible.
Attachment:
signature.asc
Description: Digital signature
