tree 2046fa2ec4259e32b02ef29107fa6ace142e8f8f
parent 964fe080d94db82a3268443e9b9ece4c60246414
author Ben Dooks <ben-linux@fluff.org> 1253634536 +0100
committer Ben Dooks <ben-linux@fluff.org> 1256754177 +0000

ARM: S3C: Add info for supporting circular DMA buffers

The S3C64XX DMA implementation will work a lot better with the ability
to enqueue circular buffers as the hardware can do it's own linked-list
management.

Add a function s3c_dma_has_circular() to show that the system can do this
and a flag for the channel.

Update the s3c24xx/s3c64xx I2S DMA code to deal with this.

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Acked-by: Mark Brown <broonie@@opensource.wolfsonmicro.com>