Tearing down DMA transfer setup after DMA client has finished

[Mason]

On 25/11/2016 16:12, Måns Rullgård wrote:

> Mason writes:
> 
>> I've had several talks with the HW dev, and I don't think they
>> anticipated the need to mux the 3 channels. In their minds,
>> customers would choose at most 3 devices to support, and
>> assign one channel to each device statically.
>>
>> In fact, in tango4, supported devices are:
>> A) NAND Flash controllers 0 and 1
>> NB: the upstream driver only uses controller 0
>> B) IDE or SATA controllers 0 and 1
>> C) a few crypto HW blocks which do not work as expected (unused)
>>
>> Customers typically use 1 channel for NAND, maybe 1 for SATA,
>> and 1 channel remains unused.
> 
> The hardware has two sata controllers, and I have a board that uses both.

I don't have the tango3 client devices in mind, but
1 NAND + 2 SATA works out alright for 3 channels, right?

Regards.