Messages in this thread |  | | Date | Fri, 15 May 2015 10:25:43 +0100 | From | Mark Brown <> | Subject | Re: [PATCH 2/3] spi: mediatek: Add spi bus for Mediatek MT8173 |
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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. [unhandled content-type:application/pgp-signature] |  |