From 88bd870f02dff5c9445286e185f21873f25a977f Mon Sep 17 00:00:00 2001 From: Benoit Cousson Date: Tue, 8 Jul 2014 23:19:34 +0200 Subject: ASoC: core: Add initial support for DAI multicodec DAI link assumes a one to one mapping between CPU DAI and CODEC. In some cases, the same CPU DAI can be connected to several codecs. This is the case for example, if you connect two mono codecs to the same I2S link in order to have a stereo card. The current ASoC implementation does not allow such setup. Add support for DAI links composed of a single CPU DAI and multiple CODECs. Sound cards have to pass the CODECs array in the corresponding DAI link through a new 'snd_soc_dai_link_component' struct. Each CODEC in this array is described in the same manner single CODEC DAIs are (either DT/OF node or codec_name). Multi-codec links are not supported in the case of CODEC to CODEC links. Just print a warning if it happens. Based on an original code done by Misael. Signed-off-by: Benoit Cousson Signed-off-by: Misael Lopez Cruz Signed-off-by: Fabien Parent Tested-by: Lars-Peter Clausen Reviewed-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc-dai.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/sound/soc-dai.h') diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h index 031be2ab75d0..e8b3080d196a 100644 --- a/include/sound/soc-dai.h +++ b/include/sound/soc-dai.h @@ -272,6 +272,10 @@ struct snd_soc_dai { struct snd_soc_codec *codec; struct snd_soc_component *component; + /* CODEC TDM slot masks and params (for fixup) */ + unsigned int tx_mask; + unsigned int rx_mask; + struct snd_soc_card *card; struct list_head list; -- cgit v1.2.3