Re: [PATCH 1/2] dt: dma: Add DT binding document for jz4780-dma

Arnd Bergmann
2015-01-29T13:10:47Z

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