ASoC: tegra: call pm_runtime APIs around register accesses

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Call pm_runtime_get_sync() before all register accesses; the HW requires
clocks to be running when accessing registers.

This hasn't been needed to date, since all register IO was performed
while playback was active, and hence the ASoC core had already called
pm_runtime_get(). However, an imminent future commit will allocate and
set up the FIFOs and routing during probe(), when that "protection"
won't be in place.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Mark Brown <broonie@linaro.org>

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Stephen Warren 2013-11-15 11:29:45 -07:00

parent 5185e0acc8

commit 768db0b93d

1 changed files with 32 additions and 0 deletions

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sound/soc/tegra/tegra30_ahub.c

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