Re: [PATCH v6 7/8] dmaengine: add a driver for Intel integrated DMA 64-bit

Lee Jones
2015-07-28T07:53:29Z

FAO Vinod,

On Tue, 28 Jul 2015, Lee Jones wrote:
> On Mon, 27 Jul 2015, Andy Shevchenko wrote:
>
> > Intel integrated DMA (iDMA) 64-bit is a specific IP that is used as a part of
> > LPSS devices such as HSUART or SPI. The iDMA IP is attached for private
> > usage on each host controller independently.
> >
> > While it has similarities with Synopsys DesignWare DMA, the following
> > distinctions doesn't allow to use the existing driver:
> > - 64-bit mode with corresponding changes in Hardware Linked List data structure
> > - many slight differences in the channel registers
> >
> > Moreover this driver is based on the DMA virtual channels framework that helps
> > to make the driver cleaner and easy to understand.
> >
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> > ---
> > drivers/dma/Kconfig | 8 +
> > drivers/dma/Makefile | 1 +
> > drivers/dma/idma64.c | 710 +++++++++++++++++++++++++++++++++++++++++++++++++++
> > drivers/dma/idma64.h | 233 +++++++++++++++++
> > 4 files changed, 952 insertions(+)
> > create mode 100644 drivers/dma/idma64.c
> > create mode 100644 drivers/dma/idma64.h
>
> Applied, thanks. Pull request to follow.

Will send out a pull request when I have Vinod's Ack.

[...]

Patches will still be applied to -next for soak testing though.

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
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