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

Vinod Koul
2015-07-28T08:43:47Z

On Mon, Jul 27, 2015 at 06:04:02PM +0300, 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.
Acked-by: Vinod Koul <vinod.koul@intel.com>

--
~Vinod