Currently, ASoC supports dailinks with the following mappings:
1 cpu DAI to N codec DAIs
N cpu DAIs to N codec DAIs
But the mapping between N cpu DAIs and M codec DAIs is not supported.
The reason is that we didn't have a mechanism to map cpu and codec DAIs
This series suggests a new snd_soc_dai_link_codec_ch_map struct in
struct snd_soc_dai_link{} which provides codec DAI to cpu DAI mapping
information used to implement N cpu DAIs to M codec DAIs support.
And add the codec_ch_maps to SOF SoundWire machine driver.
Bard Liao (2):
ASoC: add N cpus to M codecs dai link support
ASoC: Intel: sof_sdw: add dai_link_codec_ch_map
include/sound/soc.h | 6 +++
sound/soc/intel/boards/sof_sdw.c | 69 +++++++++++++++++++++++++
sound/soc/intel/boards/sof_sdw_common.h | 2 +
sound/soc/intel/boards/sof_sdw_maxim.c | 1 +
sound/soc/soc-dapm.c | 24 ++++++++-
sound/soc/soc-pcm.c | 44 ++++++++++++++--
6 files changed, 141 insertions(+), 5 deletions(-)
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2.25.1
