ASoC: add support for separate codec DAIs to the fsl_dma driver
Some codecs have separate DAIs for playback and capture, so the DMA driver should allocate a DMA buffer only for the streams that are valid when the driver is opened. Signed-off-by: NTimur Tabi <timur@freescale.com> Acked-by: NLiam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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