tree 71e6380eb2b6f25f3eb80b8ead4a06d3268a8efb
parent b6f7d7c8bf40800ac68e16302bb7627c59ea9168
author Stephen Warren <swarren@nvidia.com> 1306354001 -0600
committer Mark Brown <broonie@opensource.wolfsonmicro.com> 1306418768 +0800

ASoC: core: Don't schedule deferred_resume_work twice

For cards that have two or more DAIs, snd_soc_resume's loop over all
DAIs ends up calling schedule_work(deferred_resume_work) once per DAI.
Since this is the same work item each time, the 2nd and subsequent
calls return 0 (work item already queued), and trigger the dev_err
message below stating that a work item may have been lost.

Solve this by adjusting the loop to simply calculate whether to run the
resume work immediately or defer it, and then call schedule work (or not)
one time based on that.

Note: This has not been tested in mainline, but only in chromeos-2.6.38;
mainline doesn't support suspend/resume on Tegra, nor does the mainline
Tegra ASoC driver contain multiple DAIs. It has been compile-checked in
mainline.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>