Re: [PATCH] dmaengine: xgene-dma: Add ACPI support for X-Gene DMA engine driver

[Rameshwar Sahu]

Hi Arnd,

On Wed, Jul 29, 2015 at 8:04 PM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> On Tuesday 21 July 2015 18:44:39 Rameshwar Prasad Sahu wrote:
>> This patch adds ACPI support for the APM X-Gene DMA engine driver.
>>
>> Signed-off-by: Rameshwar Prasad Sahu <rsahu@xxxxxxx>
>>
>
> How does a slave driver refer to a channel in case of ACPI?

We don't support slave dma here. This driver supports only memcp, xor,
pq, scatter-gather offloading, so,
client driver can use linux dmaengine APIs like dma_request_channel()
etc to request channel.


>
>         Arnd
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