tree 8c326e61d18d65c502414c178d5dc49ca1a020a7
parent 447f18f1b4a3e86159353d016dcaac25414b3a42
author Sudhakar Rajashekhara <sudhakar.raj@ti.com> 1262779189 +0530
committer Kevin Hilman <khilman@deeprootsystems.com> 1265319002 -0800

davinci: build list of unused EDMA events dynamically

Currently, the edma_noevent list is passed from platform data.
But on some architectures, there will be many EDMA channels
which will not be used at all. This patch scans all the
platform devices and then builds a list of events which are
not being used. The unused event list will be used to allocate
EDMA channels in case of EDMA_CHANNEL_ANY usage instead of the
edma_noevent being used earlier for this purpose.

This patch is based on David Brownells's suggestion at
http://article.gmane.org/gmane.linux.davinci/15176.

Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>