Merge branch 'asoc-5.2' into asoc-5.3
[sfrench/cifs-2.6.git] / sound / soc / soc-core.c
index 3fecd957995e0deea5c3d71431e89fa207ad70e0..94a36ee8eb224606be62e248f105fbaa18f965bd 100644 (file)
@@ -57,6 +57,13 @@ static LIST_HEAD(unbind_card_list);
 #define for_each_component(component)                  \
        list_for_each_entry(component, &component_list, list)
 
+/*
+ * This is used if driver don't need to have CPU/Codec/Platform
+ * dai_link. see soc.h
+ */
+struct snd_soc_dai_link_component null_dailink_component[0];
+EXPORT_SYMBOL_GPL(null_dailink_component);
+
 /*
  * This is a timeout to do a DAPM powerdown after a stream is closed().
  * It can be used to eliminate pops between different playback streams, e.g.
@@ -690,6 +697,8 @@ int snd_soc_resume(struct device *dev)
        struct snd_soc_card *card = dev_get_drvdata(dev);
        bool bus_control = false;
        struct snd_soc_pcm_runtime *rtd;
+       struct snd_soc_dai *codec_dai;
+       int i;
 
        /* If the card is not initialized yet there is nothing to do */
        if (!card->instantiated)
@@ -697,14 +706,12 @@ int snd_soc_resume(struct device *dev)
 
        /* activate pins from sleep state */
        for_each_card_rtds(card, rtd) {
-               struct snd_soc_dai *codec_dai;
                struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-               int j;
 
                if (cpu_dai->active)
                        pinctrl_pm_select_default_state(cpu_dai->dev);
 
-               for_each_rtd_codec_dai(rtd, j, codec_dai) {
+               for_each_rtd_codec_dai(rtd, i, codec_dai) {
                        if (codec_dai->active)
                                pinctrl_pm_select_default_state(codec_dai->dev);
                }
@@ -741,6 +748,18 @@ EXPORT_SYMBOL_GPL(snd_soc_resume);
 static const struct snd_soc_dai_ops null_dai_ops = {
 };
 
+static struct device_node
+*soc_component_to_node(struct snd_soc_component *component)
+{
+       struct device_node *of_node;
+
+       of_node = component->dev->of_node;
+       if (!of_node && component->dev->parent)
+               of_node = component->dev->parent->of_node;
+
+       return of_node;
+}
+
 static struct snd_soc_component *soc_find_component(
        const struct device_node *of_node, const char *name)
 {
@@ -751,9 +770,7 @@ static struct snd_soc_component *soc_find_component(
 
        for_each_component(component) {
                if (of_node) {
-                       component_of_node = component->dev->of_node;
-                       if (!component_of_node && component->dev->parent)
-                               component_of_node = component->dev->parent->of_node;
+                       component_of_node = soc_component_to_node(component);
 
                        if (component_of_node == of_node)
                                return component;
@@ -771,9 +788,7 @@ static int snd_soc_is_matching_component(
 {
        struct device_node *component_of_node;
 
-       component_of_node = component->dev->of_node;
-       if (!component_of_node && component->dev->parent)
-               component_of_node = component->dev->parent->of_node;
+       component_of_node = soc_component_to_node(component);
 
        if (dlc->of_node && component_of_node != dlc->of_node)
                return 0;
@@ -879,9 +894,7 @@ 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;
-       struct snd_soc_dai **codec_dais;
        int i;
 
        if (dai_link->ignore)
@@ -899,35 +912,31 @@ 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);
 
-       rtd->num_codecs = dai_link->num_codecs;
-
        /* Find CODEC from registered CODECs */
-       codec_dais = rtd->codec_dais;
+       rtd->num_codecs = dai_link->num_codecs;
        for_each_link_codecs(dai_link, i, codecs) {
-               codec_dais[i] = snd_soc_find_dai(codecs);
-               if (!codec_dais[i]) {
+               rtd->codec_dais[i] = snd_soc_find_dai(codecs);
+               if (!rtd->codec_dais[i]) {
                        dev_info(card->dev, "ASoC: CODEC DAI %s not registered\n",
                                 codecs->dai_name);
                        goto _err_defer;
                }
-               snd_soc_rtdcom_add(rtd, codec_dais[i]->component);
+               snd_soc_rtdcom_add(rtd, rtd->codec_dais[i]->component);
        }
 
        /* Single codec links expect codec and codec_dai in runtime data */
-       rtd->codec_dai = codec_dais[0];
+       rtd->codec_dai = rtd->codec_dais[0];
 
-       /* find one from the set of registered platforms */
+       /* Find PLATFORM from registered PLATFORMs */
        for_each_component(component) {
                if (!snd_soc_is_matching_component(dai_link->platforms,
                                                   component))
@@ -946,6 +955,7 @@ _err_defer:
 
 static void soc_cleanup_component(struct snd_soc_component *component)
 {
+       snd_soc_component_set_jack(component, NULL, NULL);
        list_del(&component->card_list);
        snd_soc_dapm_free(snd_soc_component_get_dapm(component));
        soc_cleanup_component_debugfs(component);
@@ -1043,117 +1053,18 @@ static void soc_remove_dai_links(struct snd_soc_card *card)
        }
 }
 
-static int snd_soc_init_platform(struct snd_soc_card *card,
-                                struct snd_soc_dai_link *dai_link)
-{
-       struct snd_soc_dai_link_component *platform = dai_link->platforms;
-
-       /*
-        * 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 (!platform) {
-               platform = devm_kzalloc(card->dev,
-                               sizeof(struct snd_soc_dai_link_component),
-                               GFP_KERNEL);
-               if (!platform)
-                       return -ENOMEM;
-
-               dai_link->platforms       = platform;
-               dai_link->num_platforms   = 1;
-               dai_link->legacy_platform = 1;
-               platform->name            = dai_link->platform_name;
-               platform->of_node         = dai_link->platform_of_node;
-               platform->dai_name        = NULL;
-       }
-
-       /* if there's no platform we match on the empty platform */
-       if (!platform->name &&
-           !platform->of_node)
-               platform->name = "snd-soc-dummy";
-
-       return 0;
-}
-
-static void soc_cleanup_platform(struct snd_soc_card *card)
-{
-       struct snd_soc_dai_link *link;
-       int i;
-       /*
-        * FIXME
-        *
-        * this function should be removed with snd_soc_init_platform
-        */
-
-       for_each_card_prelinks(card, i, link) {
-               if (link->legacy_platform) {
-                       link->legacy_platform = 0;
-                       link->platforms       = NULL;
-               }
-       }
-}
-
-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) {
-               dai_link->num_codecs = 1;
-
-               dai_link->codecs = devm_kzalloc(card->dev,
-                               sizeof(struct snd_soc_dai_link_component),
-                               GFP_KERNEL);
-               if (!dai_link->codecs)
-                       return -ENOMEM;
-
-               dai_link->codecs[0].name = dai_link->codec_name;
-               dai_link->codecs[0].of_node = dai_link->codec_of_node;
-               dai_link->codecs[0].dai_name = dai_link->codec_dai_name;
-       }
-
-       if (!dai_link->codecs) {
-               dev_err(card->dev, "ASoC: DAI link has no CODECs\n");
-               return -EINVAL;
-       }
-
-       return 0;
-}
+static struct snd_soc_dai_link_component dummy_link = COMP_DUMMY();
 
 static int soc_init_dai_link(struct snd_soc_card *card,
                             struct snd_soc_dai_link *link)
 {
-       int i, ret;
+       int i;
        struct snd_soc_dai_link_component *codec;
 
-       ret = snd_soc_init_platform(card, link);
-       if (ret) {
-               dev_err(card->dev, "ASoC: failed to init multiplatform\n");
-               return ret;
-       }
-
-       ret = snd_soc_init_multicodec(card, link);
-       if (ret) {
-               dev_err(card->dev, "ASoC: failed to init multicodec\n");
-               return ret;
+       /* default Platform */
+       if (!link->platforms || !link->num_platforms) {
+               link->platforms = &dummy_link;
+               link->num_platforms = 1;
        }
 
        for_each_link_codecs(link, i, codec) {
@@ -1202,12 +1113,20 @@ 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);
@@ -1218,16 +1137,16 @@ 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);
@@ -1325,13 +1244,10 @@ EXPORT_SYMBOL_GPL(snd_soc_remove_dai_link);
 
 static void soc_set_of_name_prefix(struct snd_soc_component *component)
 {
-       struct device_node *component_of_node = component->dev->of_node;
+       struct device_node *component_of_node = soc_component_to_node(component);
        const char *str;
        int ret;
 
-       if (!component_of_node && component->dev->parent)
-               component_of_node = component->dev->parent->of_node;
-
        ret = of_property_read_string(component_of_node, "sound-name-prefix",
                                      &str);
        if (!ret)
@@ -1345,10 +1261,7 @@ static void soc_set_name_prefix(struct snd_soc_card *card,
 
        for (i = 0; i < card->num_configs && card->codec_conf; i++) {
                struct snd_soc_codec_conf *map = &card->codec_conf[i];
-               struct device_node *component_of_node = component->dev->of_node;
-
-               if (!component_of_node && component->dev->parent)
-                       component_of_node = component->dev->parent->of_node;
+               struct device_node *component_of_node = soc_component_to_node(component);
 
                if (map->of_node && component_of_node != map->of_node)
                        continue;
@@ -1426,12 +1339,11 @@ static int soc_probe_component(struct snd_soc_card *card,
                                "ASoC: failed to probe component %d\n", ret);
                        goto err_probe;
                }
-
-               WARN(dapm->idle_bias_off &&
-                       dapm->bias_level != SND_SOC_BIAS_OFF,
-                       "codec %s can not start from non-off bias with idle_bias_off==1\n",
-                       component->name);
        }
+       WARN(dapm->idle_bias_off &&
+            dapm->bias_level != SND_SOC_BIAS_OFF,
+            "codec %s can not start from non-off bias with idle_bias_off==1\n",
+            component->name);
 
        /* machine specific init */
        if (component->init) {
@@ -1999,7 +1911,7 @@ match:
                                 card->dai_link[i].name);
 
                        /* override platform component */
-                       if (snd_soc_init_platform(card, dai_link) < 0) {
+                       if (!dai_link->platforms) {
                                dev_err(card->dev, "init platform error");
                                continue;
                        }
@@ -2050,7 +1962,6 @@ 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);
 
        /* remove auxiliary devices */
        soc_remove_aux_devices(card);
@@ -2075,7 +1986,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
        for_each_card_prelinks(card, i, dai_link) {
                ret = soc_init_dai_link(card, dai_link);
                if (ret) {
-                       soc_cleanup_platform(card);
+                       soc_cleanup_card_resources(card);
                        dev_err(card->dev, "ASoC: failed to init link %s: %d\n",
                                dai_link->name, ret);
                        mutex_unlock(&client_mutex);
@@ -3752,7 +3663,7 @@ EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt);
 
 int snd_soc_get_dai_id(struct device_node *ep)
 {
-       struct snd_soc_component *pos;
+       struct snd_soc_component *component;
        struct device_node *node;
        int ret;
 
@@ -3766,20 +3677,10 @@ int snd_soc_get_dai_id(struct device_node *ep)
         */
        ret = -ENOTSUPP;
        mutex_lock(&client_mutex);
-       for_each_component(pos) {
-               struct device_node *component_of_node = pos->dev->of_node;
-
-               if (!component_of_node && pos->dev->parent)
-                       component_of_node = pos->dev->parent->of_node;
-
-               if (component_of_node != node)
-                       continue;
-
-               if (pos->driver->of_xlate_dai_id)
-                       ret = pos->driver->of_xlate_dai_id(pos, ep);
-
-               break;
-       }
+       component = soc_find_component(node, NULL);
+       if (component &&
+           component->driver->of_xlate_dai_id)
+               ret = component->driver->of_xlate_dai_id(component, ep);
        mutex_unlock(&client_mutex);
 
        of_node_put(node);
@@ -3797,9 +3698,7 @@ int snd_soc_get_dai_name(struct of_phandle_args *args,
 
        mutex_lock(&client_mutex);
        for_each_component(pos) {
-               component_of_node = pos->dev->of_node;
-               if (!component_of_node && pos->dev->parent)
-                       component_of_node = pos->dev->parent->of_node;
+               component_of_node = soc_component_to_node(pos);
 
                if (component_of_node != args->np)
                        continue;