Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [PATCH 1/2] dt: dma: Add DT binding document for jz4780-dma | Date | Thu, 29 Jan 2015 14:10:36 +0100 |
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On Thursday 29 January 2015 12:19:38 Zubair Lutfullah Kakakhel wrote: > > +1. Transmit request type: The DMA request type for transfers to the device on > + the allocated channel, as defined in the SoC documentation. If set to 0, > + transfers to the device will not be allowed on the channel. > + > +2. Receive request type: The DMA request type for transfers from the device on > + the allocated channel, as defined in the SoC documentation. If set to 0, > + transfers from the device will not be allowed on the channel.
It's fairly unusual to have separate fields for these two, most other driver just use one. What would be a use-case for passing both?
Arnd
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