[PATCH] mxs/dma: Enlarge the CCW descriptor area to 4 pages

[Shawn Guo]

On Tue, Sep 04, 2012 at 06:04:25AM +0200, Marek Vasut wrote:
> In case of a large SPI flash, the amount of DMA descriptors
> available to the DMA driver is not large enough anymore. For
> example 8MB SPI flash now needs 129 descriptors to be transfered
> in one long read. There are currently 53 descriptors available in
> one PAGE_SIZE-big block. Enlarge the allocated descriptor area to
> four PAGE_SIZE blocks to fulfill such requirements.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Dan Williams <djbw at fb.com>
> Cc: Fabio Estevam <fabio.estevam at freescale.com>
> Cc: Shawn Guo <shawn.guo at linaro.org>

Acked-by: Shawn Guo <shawn.guo at linaro.org>

Vinod (copied) is the primary maintainer and collecting dma patches now.