From: Kukjin Kim <kgene@kernel.org>
To: "'Vinod Koul'" <vinod.koul@intel.com>,
"'Heiko Stübner'" <heiko@sntech.de>
Cc: "'Dan Williams'" <djbw@fb.com>,
linus.walleij@linaro.org, "'Tomasz Figa'" <tomasz.figa@gmail.com>,
"'Sylwester Nawrocki'" <sylvester.nawrocki@gmail.com>,
linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org
Subject: RE: [PATCH v5 2/4] dmaengine: add driver for Samsung s3c24xx SoCs
Date: Tue, 08 Oct 2013 08:22:32 +0900 [thread overview]
Message-ID: <0f4401cec3b4$19648230$4c2d8690$@org> (raw)
In-Reply-To: <20131007143351.GK2954@intel.com>
Vinod Koul wrote:
>
> On Wed, Sep 18, 2013 at 09:19:54PM +0200, Heiko Stübner wrote:
> > This adds a new driver to support the s3c24xx dma using the dmaengine
> > and makes the old one in mach-s3c24xx obsolete in the long run.
> >
> > Conceptually the s3c24xx-dma feels like a distant relative of the pl08x
> > with numerous virtual channels being mapped to a lot less physical ones.
> > The driver therefore borrows a lot from the amba-pl08x driver in this
> > regard. Functionality-wise the driver gains a memcpy ability in addition
> > to the slave_sg one.
> >
> > The driver supports both the method for requesting the peripheral used
> > by SoCs before the S3C2443 and the different method for S3C2443 and
> later.
> >
> > On earlier SoCs the hardware channels usable for specific peripherals is
> > constrainted while on later SoCs all channels can be used for any
> peripheral.
> >
> > Tested on a s3c2416-based board, memcpy using the dmatest module and
> > slave_sg partially using the spi-s3c64xx driver.
> >
> > Signed-off-by: Heiko Stuebner <heiko@sntech.de>
> > Acked-by: Linus Walleij <linus.walleij@linaro.org>
> Acked-by: Vinod Koul <vinod.koul@intel.com>
>
Vinod, thanks for your ack :-)
Applied this whole series.
Kukjin
next prev parent reply other threads:[~2013-10-07 23:22 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-18 19:18 [PATCH v5 0/4] ARM: S3C24XX: add dmaengine based dma-driver Heiko Stübner
2013-09-18 19:19 ` [PATCH v5 1/4] ARM: S3C24XX: number the dma clocks Heiko Stübner
2013-09-18 19:19 ` [PATCH v5 2/4] dmaengine: add driver for Samsung s3c24xx SoCs Heiko Stübner
2013-10-07 9:14 ` Heiko Stübner
2013-10-07 10:51 ` Kukjin Kim
2013-10-07 14:33 ` Vinod Koul
2013-10-07 23:22 ` Kukjin Kim [this message]
2013-09-18 19:20 ` [PATCH v5 3/4] ARM: S3C24XX: add platform-devices for new dma driver for s3c2412 and s3c2443 Heiko Stübner
2013-10-08 20:29 ` Olof Johansson
2013-09-18 19:21 ` [PATCH v5 4/4] ARM: SAMSUNG: set s3c24xx_dma_filter for s3c64xx-spi0 device Heiko Stübner
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