tree be4461d09afc0ed1dfe30a5484e8f75099334349
parent fd009035047941fe21622b09665423f1043f0507
author Joel Fernandes <joelf@ti.com> 1379977515 -0500
committer Vinod Koul <vinod.koul@intel.com> 1382340329 +0530

dma: edma: Increase maximum SG limit to 20

davinci-pcm uses 16 as the no.of periods. With this, in EDMA we have to
allocate atleast 17 slots: 1 slot for channel, and 16 slots the periods.

Due to this, the MAX_NR_SG limitation causes problems, set it to 20 to make
cyclic DMA work when davinci-pcm is converted to use DMA Engine. Also add
a comment clarifying this.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>