From mboxrd@z Thu Jan  1 00:00:00 1970
From: arnd@arndb.de (Arnd Bergmann)
Date: Sat, 01 Aug 2015 23:28:19 +0200
Subject: [PATCH] dmaengine: xgene-dma: Add ACPI support for X-Gene DMA
 engine driver
In-Reply-To: <CAFd313xntHx7JhfTWSsJo+bTm-DuEcbAzqXt9in1s0irL3g7sw@mail.gmail.com>
References: <1437484479-2822-1-git-send-email-rsahu@apm.com>
 <2384915.JHlOHWBXHy@wuerfel>
 <CAFd313xntHx7JhfTWSsJo+bTm-DuEcbAzqXt9in1s0irL3g7sw@mail.gmail.com>
Message-ID: <2216844.XmXxxWVjii@wuerfel>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Thursday 30 July 2015 14:21:07 Rameshwar Sahu wrote:
> Hi Arnd,
> 
> On Wed, Jul 29, 2015 at 8:04 PM, Arnd Bergmann <arnd@arndb.de> 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@apm.com>
> >>
> >
> > 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.

Ok, makes sense. Thanks!

	Arnd