s3c2410_dma_enqueue makes call to kzalloc and dma_pool_alloc with GFP_KERNEL
flag set, this can be an issue for drivers, like I2S, which call
s3c2410_dma_enqueue from dma-bufferdone callback.

Change the flag GFP_KERNEL to GFP_ATOMIC to avoid any problems.
Signed-Off-by: NJassi <jassi.brar@samsung.com>
[ben-linux@fluff.org: Minor description edit and re-wrap]
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Provide actual minimum(struct pl080s_lli) size of block to
dma_pool_create call, instead of hardcoded 32 bytes.
Signed-Off-by: NJassi <jassi.brar@samsung.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

The message was missing a severity macro so pick pr_debug().
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add support for the DMA blocks in the S3C64XX series of CPUS,
which are based on the ARM PL080 PrimeCell system.

Unfortunately, these DMA controllers diverge from the PL080
design by adding another DMA controller register and
configuration for OneNAND.
Signed-off-by: NBen Dooks <ben@simtec.co.uk>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>