tree 1f98979430da6498536d935e52a763bdcd1262fa
parent 717d818169e5d5672fb81bc7357e9bb265d1e228
author Guennadi Liakhovetski <g.liakhovetski@gmx.de> 1379489588 +0200
committer Vinod Koul <vinod.koul@intel.com> 1381111899 +0530

DMA: ste_dma40: use a power of 2 check

dst_addr_width and src_addr_width should be a power of 2. Currently the
driver checks, that they both lie between 1 and 8 and that they are equal
to 1 or even. This however leaves an invalid value of 6 uncaught. Use an
explicit power of 2 check instead.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
[typo fix on changelog]
Signed-off-by: Vinod Koul <vinod.koul@intel.com>