diff options
| -rw-r--r-- | include/sound/soc.h | 36 | ||||
| -rw-r--r-- | sound/soc/soc-core.c | 20 |
2 files changed, 54 insertions, 2 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h index e665f111b0d2..c31b6d122ff6 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -891,6 +891,18 @@ struct snd_soc_dai_link { /* config - must be set by machine driver */ const char *name; /* Codec name */ const char *stream_name; /* Stream name */ + + /* + * cpu_name + * cpu_of_node + * cpu_dai_name + * + * These are legacy style, and will be replaced to + * modern style (= snd_soc_dai_link_component) in the future, + * but, not yet supported so far. + * If modern style was supported for CPU, all driver will switch + * to use it, and, legacy style code will be removed from ALSA SoC. + */ /* * You MAY specify the link's CPU-side device, either by device name, * or by DT/OF node, but not both. If this information is omitted, @@ -906,6 +918,19 @@ struct snd_soc_dai_link { * only, which only works well when that device exposes a single DAI. */ const char *cpu_dai_name; + + /* + * codec_name + * codec_of_node + * codec_dai_name + * + * These are legacy style, it will be converted to modern style + * (= snd_soc_dai_link_component) automatically in soc-core + * if driver is using legacy style. + * Driver shouldn't use both legacy and modern style in the same time. + * If modern style was supported for CPU, all driver will switch + * to use it, and, legacy style code will be removed from ALSA SoC. + */ /* * You MUST specify the link's codec, either by device name, or by * DT/OF node, but not both. @@ -919,6 +944,17 @@ struct snd_soc_dai_link { unsigned int num_codecs; /* + * platform_name + * platform_of_node + * + * These are legacy style, it will be converted to modern style + * (= snd_soc_dai_link_component) automatically in soc-core + * if driver is using legacy style. + * Driver shouldn't use both legacy and modern style in the same time. + * If modern style was supported for CPU, all driver will switch + * to use it, and, legacy style code will be removed from ALSA SoC. + */ + /* * You MAY specify the link's platform/PCM/DMA driver, either by * device name, or by DT/OF node, but not both. Some forms of link * do not need a platform. diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 890d6c9c2752..de2851f1b3df 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1029,9 +1029,14 @@ static int snd_soc_init_platform(struct snd_soc_card *card, struct snd_soc_dai_link_component *platform = dai_link->platform; /* - * FIXME + * REMOVE ME * - * this function should be removed in the future + * This is glue code for Legacy vs Modern dai_link. + * This function will be removed if all derivers are switched to + * modern style dai_link. + * Driver shouldn't use both legacy and modern style in the same time. + * see + * soc.h :: struct snd_soc_dai_link */ /* convert Legacy platform link */ if (!platform || dai_link->legacy_platform) { @@ -1059,6 +1064,17 @@ static int snd_soc_init_platform(struct snd_soc_card *card, static int snd_soc_init_multicodec(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { + /* + * REMOVE ME + * + * This is glue code for Legacy vs Modern dai_link. + * This function will be removed if all derivers are switched to + * modern style dai_link. + * Driver shouldn't use both legacy and modern style in the same time. + * see + * soc.h :: struct snd_soc_dai_link + */ + /* Legacy codec/codec_dai link is a single entry in multicodec */ if (dai_link->codec_name || dai_link->codec_of_node || dai_link->codec_dai_name) { |