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authorLars-Peter Clausen <lars@metafoo.de>2013-04-15 19:19:51 +0200
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-04-17 15:21:36 +0200
commitc999836d37c6c1125e856f68877ae13952baa61a (patch)
tree77ca9109474b59a6a811e36784f3fed5b3458a2e /fs/nfs/nfs4proc.c
parentASoC: Add a generic dmaengine_pcm driver (diff)
downloadlinux-c999836d37c6c1125e856f68877ae13952baa61a.tar.xz
linux-c999836d37c6c1125e856f68877ae13952baa61a.zip
ASoC: dmaengine_pcm: Add support for compat platforms
Add support for platforms which don't use devicetree yet or have to optionally support a non-devicetree way to request the DMA channel. The patch adds the compat_request_channel and compat_filter_fn callbacks to the snd_dmaengine_pcm_config struct. If the compat_request_channel is implemented it will be used to request the DMA channel. If not dma_request_channel with compat_filter_fn as the filter function will be used to request the channel. The patch also exports the snd_dmaengine_pcm_request_chan() function, since compat platforms will want to use it to request their DMA channel. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Stephen Warren <swarren@nvidia.com> Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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