From mboxrd@z Thu Jan 1 00:00:00 1970 From: dzu@denx.de (Detlev Zundel) Date: Tue, 10 Aug 2010 16:19:24 +0200 Subject: [PATCH 4/8] ARM i.MX: add SDMA driver In-Reply-To: (Tabi Timur-B's message of "Tue, 10 Aug 2010 10:08:46 -0400") References: <1281344743-2029-1-git-send-email-s.hauer@pengutronix.de> <1281344743-2029-5-git-send-email-s.hauer@pengutronix.de> <19553.23611.216618.916355@ipc1.ka-ro> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Timur, > On Aug 10, 2010, at 10:04 AM, Lothar Wa?mann wrote: > >> Hi, >> >> Timur Tabi writes: >>> On Tuesday, August 10, 2010, Detlev Zundel >>>> Apart from this I would also welcome if the whole driver could be >>>> adapted to the drivers/dma dmaengine API as pointed out by Linus >>>> Walleij. The dma controller support for the Power Architecture chips of >>>> Freescale do implement this API, so this would also be a great step >>>> towards code unification of drivers here. >>> >>> The Freescale PowerPC and ARM DMA controllers are completely >>> different, so I don't see how the drivers could be unified. >>> >> The DMA API should abstract away the differences in the hardware >> so that device drivers could use DMA without having to know on what >> hardware they are running. > > I thought you were talking about unifying the PowerPC DMA driver with > the I.MX SDMA driver. No, I was talking about the device drivers using DMA as a functional block. I dare not think about unifying the BestComm with the SDMA driver :) Cheers Detlev -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: dzu at denx.de