diff --git a/include/sound/soc.h b/include/sound/soc.h index f20785aa7b4a..ae7ca828e167 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -927,6 +927,9 @@ struct snd_soc_dai_link { */ const char *cpu_dai_name; + struct snd_soc_dai_link_component *cpus; + unsigned int num_cpus; + /* * codec_name * codec_of_node @@ -1035,6 +1038,7 @@ struct snd_soc_dai_link { * drivers should not modify this value. */ unsigned int legacy_platform:1; + unsigned int legacy_cpu:1; struct list_head list; /* DAI link list of the soc card */ struct snd_soc_dobj dobj; /* For topology */ diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index ace5fb01d9a0..f86ee4f48f06 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -887,7 +887,6 @@ static int soc_bind_dai_link(struct snd_soc_card *card, { struct snd_soc_pcm_runtime *rtd; struct snd_soc_dai_link_component *codecs; - struct snd_soc_dai_link_component cpu_dai_component; struct snd_soc_component *component; int i; @@ -906,13 +905,11 @@ static int soc_bind_dai_link(struct snd_soc_card *card, if (!rtd) return -ENOMEM; - cpu_dai_component.name = dai_link->cpu_name; - cpu_dai_component.of_node = dai_link->cpu_of_node; - cpu_dai_component.dai_name = dai_link->cpu_dai_name; - rtd->cpu_dai = snd_soc_find_dai(&cpu_dai_component); + /* FIXME: we need multi CPU support in the future */ + rtd->cpu_dai = snd_soc_find_dai(dai_link->cpus); if (!rtd->cpu_dai) { dev_info(card->dev, "ASoC: CPU DAI %s not registered\n", - dai_link->cpu_dai_name); + dai_link->cpus->dai_name); goto _err_defer; } snd_soc_rtdcom_add(rtd, rtd->cpu_dai->component); @@ -1049,6 +1046,46 @@ static void soc_remove_dai_links(struct snd_soc_card *card) } } +static int snd_soc_init_cpu(struct snd_soc_card *card, + struct snd_soc_dai_link *dai_link) +{ + struct snd_soc_dai_link_component *cpu = dai_link->cpus; + + /* + * 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 + */ + /* convert Legacy platform link */ + if (!cpu) { + cpu = devm_kzalloc(card->dev, + sizeof(struct snd_soc_dai_link_component), + GFP_KERNEL); + if (!cpu) + return -ENOMEM; + + dai_link->cpus = cpu; + dai_link->num_cpus = 1; + dai_link->legacy_cpu = 1; + + cpu->name = dai_link->cpu_name; + cpu->of_node = dai_link->cpu_of_node; + cpu->dai_name = dai_link->cpu_dai_name; + } + + if (!dai_link->cpus) { + dev_err(card->dev, "ASoC: DAI link has no CPUs\n"); + return -EINVAL; + } + + return 0; +} + static int snd_soc_init_platform(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { @@ -1088,7 +1125,7 @@ static int snd_soc_init_platform(struct snd_soc_card *card, return 0; } -static void soc_cleanup_platform(struct snd_soc_card *card) +static void soc_cleanup_legacy(struct snd_soc_card *card) { struct snd_soc_dai_link *link; int i; @@ -1103,6 +1140,10 @@ static void soc_cleanup_platform(struct snd_soc_card *card) link->legacy_platform = 0; link->platforms = NULL; } + if (link->legacy_cpu) { + link->legacy_cpu = 0; + link->cpus = NULL; + } } } @@ -1150,6 +1191,12 @@ static int soc_init_dai_link(struct snd_soc_card *card, int i, ret; struct snd_soc_dai_link_component *codec; + ret = snd_soc_init_cpu(card, link); + if (ret) { + dev_err(card->dev, "ASoC: failed to init cpu\n"); + return ret; + } + ret = snd_soc_init_platform(card, link); if (ret) { dev_err(card->dev, "ASoC: failed to init multiplatform\n"); @@ -1208,12 +1255,20 @@ static int soc_init_dai_link(struct snd_soc_card *card, !soc_find_component(link->platforms->of_node, link->platforms->name)) return -EPROBE_DEFER; + /* FIXME */ + if (link->num_cpus > 1) { + dev_err(card->dev, + "ASoC: multi cpu is not yet supported %s\n", + link->name); + return -EINVAL; + } + /* * CPU device may be specified by either name or OF node, but * can be left unspecified, and will be matched based on DAI * name alone.. */ - if (link->cpu_name && link->cpu_of_node) { + if (link->cpus->name && link->cpus->of_node) { dev_err(card->dev, "ASoC: Neither/both cpu name/of_node are set for %s\n", link->name); @@ -1224,16 +1279,16 @@ static int soc_init_dai_link(struct snd_soc_card *card, * Defer card registartion if cpu dai component is not added to * component list. */ - if ((link->cpu_of_node || link->cpu_name) && - !soc_find_component(link->cpu_of_node, link->cpu_name)) + if ((link->cpus->of_node || link->cpus->name) && + !soc_find_component(link->cpus->of_node, link->cpus->name)) return -EPROBE_DEFER; /* * At least one of CPU DAI name or CPU device name/node must be * specified */ - if (!link->cpu_dai_name && - !(link->cpu_name || link->cpu_of_node)) { + if (!link->cpus->dai_name && + !(link->cpus->name || link->cpus->of_node)) { dev_err(card->dev, "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", link->name); @@ -2049,7 +2104,7 @@ static int soc_cleanup_card_resources(struct snd_soc_card *card) /* remove and free each DAI */ soc_remove_dai_links(card); soc_remove_pcm_runtimes(card); - soc_cleanup_platform(card); + soc_cleanup_legacy(card); /* remove auxiliary devices */ soc_remove_aux_devices(card); @@ -2806,7 +2861,7 @@ int snd_soc_register_card(struct snd_soc_card *card) ret = soc_init_dai_link(card, link); if (ret) { - soc_cleanup_platform(card); + soc_cleanup_legacy(card); dev_err(card->dev, "ASoC: failed to init link %s\n", link->name); mutex_unlock(&client_mutex);