diff options
Diffstat (limited to 'sound/soc/soc-core.c')
| -rw-r--r-- | sound/soc/soc-core.c | 860 |
1 files changed, 407 insertions, 453 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 88978a3036c4..55014e7ae0d8 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -125,6 +125,9 @@ static umode_t soc_dev_attr_is_visible(struct kobject *kobj, struct device *dev = kobj_to_dev(kobj); struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); + if (!rtd) + return 0; + if (attr == &dev_attr_pmdown_time.attr) return attr->mode; /* always visible */ return rtd->num_codecs ? attr->mode : 0; /* enabled only with codec */ @@ -274,43 +277,58 @@ static inline void snd_soc_debugfs_exit(void) #endif +/* + * This is glue code between snd_pcm_lib_ioctl() and + * snd_soc_component_driver :: ioctl + */ +int snd_soc_pcm_lib_ioctl(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + unsigned int cmd, void *arg) +{ + return snd_pcm_lib_ioctl(substream, cmd, arg); +} +EXPORT_SYMBOL_GPL(snd_soc_pcm_lib_ioctl); + static int snd_soc_rtdcom_add(struct snd_soc_pcm_runtime *rtd, struct snd_soc_component *component) { struct snd_soc_rtdcom_list *rtdcom; + struct snd_soc_component *comp; - for_each_rtdcom(rtd, rtdcom) { + for_each_rtd_components(rtd, rtdcom, comp) { /* already connected */ - if (rtdcom->component == component) + if (comp == component) return 0; } - rtdcom = kmalloc(sizeof(*rtdcom), GFP_KERNEL); + /* + * created rtdcom here will be freed when rtd->dev was freed. + * see + * soc_free_pcm_runtime() :: device_unregister(rtd->dev) + */ + rtdcom = devm_kzalloc(rtd->dev, sizeof(*rtdcom), GFP_KERNEL); if (!rtdcom) return -ENOMEM; rtdcom->component = component; INIT_LIST_HEAD(&rtdcom->list); + /* + * When rtd was freed, created rtdcom here will be + * also freed. + * And we don't need to call list_del(&rtdcom->list) + * when freed, because rtd is also freed. + */ list_add_tail(&rtdcom->list, &rtd->component_list); return 0; } -static void snd_soc_rtdcom_del_all(struct snd_soc_pcm_runtime *rtd) -{ - struct snd_soc_rtdcom_list *rtdcom1, *rtdcom2; - - for_each_rtdcom_safe(rtd, rtdcom1, rtdcom2) - kfree(rtdcom1); - - INIT_LIST_HEAD(&rtd->component_list); -} - struct snd_soc_component *snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd, const char *driver_name) { struct snd_soc_rtdcom_list *rtdcom; + struct snd_soc_component *component; if (!driver_name) return NULL; @@ -323,8 +341,8 @@ struct snd_soc_component *snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd, * But, if many components which have same driver name are connected * to 1 rtd, this function will return 1st found component. */ - for_each_rtdcom(rtd, rtdcom) { - const char *component_name = rtdcom->component->driver->name; + for_each_rtd_components(rtd, rtdcom, component) { + const char *component_name = component->driver->name; if (!component_name) continue; @@ -338,6 +356,39 @@ struct snd_soc_component *snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd, } EXPORT_SYMBOL_GPL(snd_soc_rtdcom_lookup); +static struct snd_soc_component +*snd_soc_lookup_component_nolocked(struct device *dev, const char *driver_name) +{ + struct snd_soc_component *component; + struct snd_soc_component *found_component; + + found_component = NULL; + for_each_component(component) { + if ((dev == component->dev) && + (!driver_name || + (driver_name == component->driver->name) || + (strcmp(component->driver->name, driver_name) == 0))) { + found_component = component; + break; + } + } + + return found_component; +} + +struct snd_soc_component *snd_soc_lookup_component(struct device *dev, + const char *driver_name) +{ + struct snd_soc_component *component; + + mutex_lock(&client_mutex); + component = snd_soc_lookup_component_nolocked(dev, driver_name); + mutex_unlock(&client_mutex); + + return component; +} +EXPORT_SYMBOL_GPL(snd_soc_lookup_component); + struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, const char *dai_link, int stream) { @@ -355,58 +406,101 @@ EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream); static const struct snd_soc_ops null_snd_soc_ops; +static void soc_release_rtd_dev(struct device *dev) +{ + /* "dev" means "rtd->dev" */ + kfree(dev); +} + +static void soc_free_pcm_runtime(struct snd_soc_pcm_runtime *rtd) +{ + if (!rtd) + return; + + list_del(&rtd->list); + + /* + * we don't need to call kfree() for rtd->dev + * see + * soc_release_rtd_dev() + * + * We don't need rtd->dev NULL check, because + * it is alloced *before* rtd. + * see + * soc_new_pcm_runtime() + */ + device_unregister(rtd->dev); +} + static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { struct snd_soc_pcm_runtime *rtd; + struct device *dev; + int ret; - rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime), GFP_KERNEL); - if (!rtd) + /* + * for rtd->dev + */ + dev = kzalloc(sizeof(struct device), GFP_KERNEL); + if (!dev) return NULL; - INIT_LIST_HEAD(&rtd->component_list); - rtd->card = card; - rtd->dai_link = dai_link; - if (!rtd->dai_link->ops) - rtd->dai_link->ops = &null_snd_soc_ops; + dev->parent = card->dev; + dev->release = soc_release_rtd_dev; + dev->groups = soc_dev_attr_groups; - rtd->codec_dais = kcalloc(dai_link->num_codecs, - sizeof(struct snd_soc_dai *), - GFP_KERNEL); - if (!rtd->codec_dais) { - kfree(rtd); + dev_set_name(dev, "%s", dai_link->name); + + ret = device_register(dev); + if (ret < 0) { + put_device(dev); /* soc_release_rtd_dev */ return NULL; } - return rtd; -} + /* + * for rtd + */ + rtd = devm_kzalloc(dev, sizeof(*rtd), GFP_KERNEL); + if (!rtd) + goto free_rtd; -static void soc_free_pcm_runtime(struct snd_soc_pcm_runtime *rtd) -{ - kfree(rtd->codec_dais); - snd_soc_rtdcom_del_all(rtd); - kfree(rtd); -} + rtd->dev = dev; + dev_set_drvdata(dev, rtd); + + /* + * for rtd->codec_dais + */ + rtd->codec_dais = devm_kcalloc(dev, dai_link->num_codecs, + sizeof(struct snd_soc_dai *), + GFP_KERNEL); + if (!rtd->codec_dais) + goto free_rtd; + + /* + * rtd remaining settings + */ + INIT_LIST_HEAD(&rtd->component_list); + INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients); + INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients); + INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients); + INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients); + + rtd->card = card; + rtd->dai_link = dai_link; + if (!rtd->dai_link->ops) + rtd->dai_link->ops = &null_snd_soc_ops; -static void soc_add_pcm_runtime(struct snd_soc_card *card, - struct snd_soc_pcm_runtime *rtd) -{ /* see for_each_card_rtds */ list_add_tail(&rtd->list, &card->rtd_list); rtd->num = card->num_rtd; card->num_rtd++; -} - -static void soc_remove_pcm_runtimes(struct snd_soc_card *card) -{ - struct snd_soc_pcm_runtime *rtd, *_rtd; - for_each_card_rtds_safe(card, rtd, _rtd) { - list_del(&rtd->list); - soc_free_pcm_runtime(rtd); - } + return rtd; - card->num_rtd = 0; +free_rtd: + soc_free_pcm_runtime(rtd); + return NULL; } struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card, @@ -872,13 +966,119 @@ static bool soc_is_dai_link_bound(struct snd_soc_card *card, return false; } +static int soc_dai_link_sanity_check(struct snd_soc_card *card, + struct snd_soc_dai_link *link) +{ + int i; + struct snd_soc_dai_link_component *codec, *platform; + + for_each_link_codecs(link, i, codec) { + /* + * Codec must be specified by 1 of name or OF node, + * not both or neither. + */ + if (!!codec->name == !!codec->of_node) { + dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n", + link->name); + return -EINVAL; + } + + /* Codec DAI name must be specified */ + if (!codec->dai_name) { + dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n", + link->name); + return -EINVAL; + } + + /* + * Defer card registration if codec component is not added to + * component list. + */ + if (!soc_find_component(codec)) + return -EPROBE_DEFER; + } + + for_each_link_platforms(link, i, platform) { + /* + * Platform may be specified by either name or OF node, but it + * can be left unspecified, then no components will be inserted + * in the rtdcom list + */ + if (!!platform->name == !!platform->of_node) { + dev_err(card->dev, + "ASoC: Neither/both platform name/of_node are set for %s\n", + link->name); + return -EINVAL; + } + + /* + * Defer card registration if platform component is not added to + * component list. + */ + if (!soc_find_component(platform)) + 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->cpus->name && link->cpus->of_node) { + dev_err(card->dev, + "ASoC: Neither/both cpu name/of_node are set for %s\n", + link->name); + return -EINVAL; + } + + /* + * Defer card registration if cpu dai component is not added to + * component list. + */ + if ((link->cpus->of_node || link->cpus->name) && + !soc_find_component(link->cpus)) + return -EPROBE_DEFER; + + /* + * At least one of CPU DAI name or CPU device name/node must be + * specified + */ + 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); + return -EINVAL; + } + + return 0; +} + +static void soc_unbind_dai_link(struct snd_soc_card *card, + struct snd_soc_dai_link *dai_link) +{ + struct snd_soc_pcm_runtime *rtd; + + rtd = snd_soc_get_pcm_runtime(card, dai_link->name); + if (rtd) + soc_free_pcm_runtime(rtd); +} + static int soc_bind_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { struct snd_soc_pcm_runtime *rtd; struct snd_soc_dai_link_component *codec, *platform; struct snd_soc_component *component; - int i; + int i, ret; if (dai_link->ignore) return 0; @@ -891,6 +1091,10 @@ static int soc_bind_dai_link(struct snd_soc_card *card, return 0; } + ret = soc_dai_link_sanity_check(card, dai_link); + if (ret < 0) + return ret; + rtd = soc_new_pcm_runtime(card, dai_link); if (!rtd) return -ENOMEM; @@ -930,7 +1134,6 @@ static int soc_bind_dai_link(struct snd_soc_card *card, } } - soc_add_pcm_runtime(card, rtd); return 0; _err_defer: @@ -1126,7 +1329,6 @@ static int soc_probe_dai(struct snd_soc_dai *dai, int order) return 0; } -static void soc_rtd_free(struct snd_soc_pcm_runtime *rtd); /* remove me */ static void soc_remove_link_dais(struct snd_soc_card *card) { int i; @@ -1136,10 +1338,6 @@ static void soc_remove_link_dais(struct snd_soc_card *card) for_each_comp_order(order) { for_each_card_rtds(card, rtd) { - - /* finalize rtd device */ - soc_rtd_free(rtd); - /* remove the CODEC DAI */ for_each_rtd_codec_dai(rtd, i, codec_dai) soc_remove_dai(codec_dai, order); @@ -1187,9 +1385,7 @@ static void soc_remove_link_components(struct snd_soc_card *card) for_each_comp_order(order) { for_each_card_rtds(card, rtd) { - for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (component->driver->remove_order != order) continue; @@ -1208,9 +1404,7 @@ static int soc_probe_link_components(struct snd_soc_card *card) for_each_comp_order(order) { for_each_card_rtds(card, rtd) { - for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (component->driver->probe_order != order) continue; @@ -1224,119 +1418,6 @@ static int soc_probe_link_components(struct snd_soc_card *card) return 0; } -static void soc_remove_dai_links(struct snd_soc_card *card) -{ - struct snd_soc_dai_link *link, *_link; - - soc_remove_link_dais(card); - - soc_remove_link_components(card); - - for_each_card_links_safe(card, link, _link) { - if (link->dobj.type == SND_SOC_DOBJ_DAI_LINK) - dev_warn(card->dev, "Topology forgot to remove link %s?\n", - link->name); - - list_del(&link->list); - } -} - -static int soc_init_dai_link(struct snd_soc_card *card, - struct snd_soc_dai_link *link) -{ - int i; - struct snd_soc_dai_link_component *codec, *platform; - - for_each_link_codecs(link, i, codec) { - /* - * Codec must be specified by 1 of name or OF node, - * not both or neither. - */ - if (!!codec->name == !!codec->of_node) { - dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n", - link->name); - return -EINVAL; - } - - /* Codec DAI name must be specified */ - if (!codec->dai_name) { - dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n", - link->name); - return -EINVAL; - } - - /* - * Defer card registration if codec component is not added to - * component list. - */ - if (!soc_find_component(codec)) - return -EPROBE_DEFER; - } - - for_each_link_platforms(link, i, platform) { - /* - * Platform may be specified by either name or OF node, but it - * can be left unspecified, then no components will be inserted - * in the rtdcom list - */ - if (!!platform->name == !!platform->of_node) { - dev_err(card->dev, - "ASoC: Neither/both platform name/of_node are set for %s\n", - link->name); - return -EINVAL; - } - - /* - * Defer card registration if platform component is not added to - * component list. - */ - if (!soc_find_component(platform)) - 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->cpus->name && link->cpus->of_node) { - dev_err(card->dev, - "ASoC: Neither/both cpu name/of_node are set for %s\n", - link->name); - return -EINVAL; - } - - /* - * Defer card registartion if cpu dai component is not added to - * component list. - */ - if ((link->cpus->of_node || link->cpus->name) && - !soc_find_component(link->cpus)) - return -EPROBE_DEFER; - - /* - * At least one of CPU DAI name or CPU device name/node must be - * specified - */ - 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); - return -EINVAL; - } - - return 0; -} - void snd_soc_disconnect_sync(struct device *dev) { struct snd_soc_component *component = @@ -1363,21 +1444,20 @@ EXPORT_SYMBOL_GPL(snd_soc_disconnect_sync); int snd_soc_add_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { - if (dai_link->dobj.type - && dai_link->dobj.type != SND_SOC_DOBJ_DAI_LINK) { - dev_err(card->dev, "Invalid dai link type %d\n", - dai_link->dobj.type); - return -EINVAL; - } + int ret; lockdep_assert_held(&client_mutex); + /* * Notify the machine driver for extra initialization - * on the link created by topology. */ - if (dai_link->dobj.type && card->add_dai_link) + if (card->add_dai_link) card->add_dai_link(card, dai_link); + ret = soc_bind_dai_link(card, dai_link); + if (ret < 0) + return ret; + /* see for_each_card_links */ list_add_tail(&dai_link->list, &card->dai_link_list); @@ -1398,67 +1478,19 @@ EXPORT_SYMBOL_GPL(snd_soc_add_dai_link); void snd_soc_remove_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { - if (dai_link->dobj.type - && dai_link->dobj.type != SND_SOC_DOBJ_DAI_LINK) { - dev_err(card->dev, "Invalid dai link type %d\n", - dai_link->dobj.type); - return; - } - lockdep_assert_held(&client_mutex); + /* * Notify the machine driver for extra destruction - * on the link created by topology. */ - if (dai_link->dobj.type && card->remove_dai_link) + if (card->remove_dai_link) card->remove_dai_link(card, dai_link); list_del(&dai_link->list); -} -EXPORT_SYMBOL_GPL(snd_soc_remove_dai_link); - -static void soc_rtd_free(struct snd_soc_pcm_runtime *rtd) -{ - if (rtd->dev_registered) { - /* we don't need to call kfree() for rtd->dev */ - device_unregister(rtd->dev); - rtd->dev_registered = 0; - } -} -static void soc_rtd_release(struct device *dev) -{ - kfree(dev); -} - -static int soc_rtd_init(struct snd_soc_pcm_runtime *rtd, const char *name) -{ - int ret = 0; - - /* register the rtd device */ - rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); - if (!rtd->dev) - return -ENOMEM; - rtd->dev->parent = rtd->card->dev; - rtd->dev->release = soc_rtd_release; - rtd->dev->groups = soc_dev_attr_groups; - dev_set_name(rtd->dev, "%s", name); - dev_set_drvdata(rtd->dev, rtd); - INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients); - INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients); - INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients); - INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients); - ret = device_register(rtd->dev); - if (ret < 0) { - /* calling put_device() here to free the rtd->dev */ - put_device(rtd->dev); - dev_err(rtd->card->dev, - "ASoC: failed to register runtime device: %d\n", ret); - return ret; - } - rtd->dev_registered = 1; - return 0; + soc_unbind_dai_link(card, dai_link); } +EXPORT_SYMBOL_GPL(snd_soc_remove_dai_link); static int soc_link_dai_pcm_new(struct snd_soc_dai **dais, int num_dais, struct snd_soc_pcm_runtime *rtd) @@ -1509,10 +1541,6 @@ static int soc_link_init(struct snd_soc_card *card, return ret; } - ret = soc_rtd_init(rtd, dai_link->name); - if (ret) - return ret; - /* add DPCM sysfs entries */ soc_dpcm_debugfs_add(rtd); @@ -1523,9 +1551,7 @@ static int soc_link_init(struct snd_soc_card *card, * topology based drivers can use the DAI link id field to set PCM * device number and then use rtd + a base offset of the BEs. */ - for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (!component->driver->use_dai_pcm_id) continue; @@ -1853,7 +1879,7 @@ static void soc_check_tplg_fes(struct snd_soc_card *card) for_each_component(component) { - /* does this component override FEs ? */ + /* does this component override BEs ? */ if (!component->driver->ignore_machine) continue; @@ -1874,7 +1900,7 @@ match: continue; } - dev_info(card->dev, "info: override FE DAI link %s\n", + dev_info(card->dev, "info: override BE DAI link %s\n", card->dai_link[i].name); /* override platform component */ @@ -1918,8 +1944,49 @@ match: } } +#define soc_setup_card_name(name, name1, name2, norm) \ + __soc_setup_card_name(name, sizeof(name), name1, name2, norm) +static void __soc_setup_card_name(char *name, int len, + const char *name1, const char *name2, + int normalization) +{ + int i; + + snprintf(name, len, "%s", name1 ? name1 : name2); + + if (!normalization) + return; + + /* + * Name normalization + * + * The driver name is somewhat special, as it's used as a key for + * searches in the user-space. + * + * ex) + * "abcd??efg" -> "abcd__efg" + */ + for (i = 0; i < len; i++) { + switch (name[i]) { + case '_': + case '-': + case '\0': + break; + default: + if (!isalnum(name[i])) + name[i] = '_'; + break; + } + } +} + static void soc_cleanup_card_resources(struct snd_soc_card *card) { + struct snd_soc_dai_link *link, *_link; + + /* This should be called before snd_card_free() */ + soc_remove_link_components(card); + /* free the ALSA card at first; this syncs with pending operations */ if (card->snd_card) { snd_card_free(card->snd_card); @@ -1927,8 +1994,10 @@ static void 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_remove_link_dais(card); + + for_each_card_links_safe(card, link, _link) + snd_soc_remove_dai_link(card, link); /* remove auxiliary devices */ soc_remove_aux_devices(card); @@ -1949,15 +2018,6 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) int ret, i; mutex_lock(&client_mutex); - for_each_card_prelinks(card, i, dai_link) { - ret = soc_init_dai_link(card, dai_link); - if (ret) { - dev_err(card->dev, "ASoC: failed to init link %s: %d\n", - dai_link->name, ret); - mutex_unlock(&client_mutex); - return ret; - } - } mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); snd_soc_dapm_init(&card->dapm, card, NULL); @@ -1965,19 +2025,13 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) /* check whether any platform is ignore machine FE and using topology */ soc_check_tplg_fes(card); - /* bind DAIs */ - for_each_card_prelinks(card, i, dai_link) { - ret = soc_bind_dai_link(card, dai_link); - if (ret != 0) - goto probe_end; - } - /* bind aux_devs too */ ret = soc_bind_aux_dev(card); if (ret < 0) goto probe_end; /* add predefined DAI links to the list */ + card->num_rtd = 0; for_each_card_prelinks(card, i, dai_link) { ret = snd_soc_add_dai_link(card, dai_link); if (ret < 0) @@ -2028,22 +2082,6 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) if (ret < 0) goto probe_end; - /* - * Find new DAI links added during probing components and bind them. - * Components with topology may bring new DAIs and DAI links. - */ - for_each_card_links(card, dai_link) { - if (soc_is_dai_link_bound(card, dai_link)) - continue; - - ret = soc_init_dai_link(card, dai_link); - if (ret) - goto probe_end; - ret = soc_bind_dai_link(card, dai_link); - if (ret) - goto probe_end; - } - /* probe all DAI links on this card */ ret = soc_probe_link_dais(card); if (ret < 0) { @@ -2076,24 +2114,12 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) /* try to set some sane longname if DMI is available */ snd_soc_set_dmi_name(card, NULL); - snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), - "%s", card->name); - snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), - "%s", card->long_name ? card->long_name : card->name); - snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), - "%s", card->driver_name ? card->driver_name : card->name); - for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { - switch (card->snd_card->driver[i]) { - case '_': - case '-': - case '\0': - break; - default: - if (!isalnum(card->snd_card->driver[i])) - card->snd_card->driver[i] = '_'; - break; - } - } + soc_setup_card_name(card->snd_card->shortname, + card->name, NULL, 0); + soc_setup_card_name(card->snd_card->longname, + card->long_name, card->name, 0); + soc_setup_card_name(card->snd_card->driver, + card->driver_name, card->name, 1); if (card->late_probe) { ret = card->late_probe(card); @@ -2400,7 +2426,6 @@ int snd_soc_register_card(struct snd_soc_card *card) INIT_LIST_HEAD(&card->dapm_dirty); INIT_LIST_HEAD(&card->dobj_list); - card->num_rtd = 0; card->instantiated = 0; mutex_init(&card->mutex); mutex_init(&card->dapm_mutex); @@ -2418,9 +2443,6 @@ static void snd_soc_unbind_card(struct snd_soc_card *card, bool unregister) snd_soc_dapm_shutdown(card); snd_soc_flush_all_delayed_work(card); - /* remove all components used by DAI links on this card */ - soc_remove_link_components(card); - soc_cleanup_card_resources(card); if (!unregister) list_add(&card->list, &unbind_card_list); @@ -2488,7 +2510,7 @@ static char *fmt_single_name(struct device *dev, int *id) *id = 0; } - return kstrdup(name, GFP_KERNEL); + return devm_kstrdup(dev, name, GFP_KERNEL); } /* @@ -2505,25 +2527,13 @@ static inline char *fmt_multiple_name(struct device *dev, return NULL; } - return kstrdup(dai_drv->name, GFP_KERNEL); + return devm_kstrdup(dev, dai_drv->name, GFP_KERNEL); } -/** - * snd_soc_unregister_dai - Unregister DAIs from the ASoC core - * - * @component: The component for which the DAIs should be unregistered - */ -static void snd_soc_unregister_dais(struct snd_soc_component *component) +static void soc_del_dai(struct snd_soc_dai *dai) { - struct snd_soc_dai *dai, *_dai; - - for_each_component_dais_safe(component, dai, _dai) { - dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n", - dai->name); - list_del(&dai->list); - kfree(dai->name); - kfree(dai); - } + dev_dbg(dai->dev, "ASoC: Unregistered DAI '%s'\n", dai->name); + list_del(&dai->list); } /* Create a DAI and add it to the component's DAI list */ @@ -2536,7 +2546,7 @@ static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component, dev_dbg(dev, "ASoC: dynamically register DAI %s\n", dev_name(dev)); - dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); + dai = devm_kzalloc(dev, sizeof(*dai), GFP_KERNEL); if (dai == NULL) return NULL; @@ -2558,10 +2568,8 @@ static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component, else dai->id = component->num_dai; } - if (dai->name == NULL) { - kfree(dai); + if (!dai->name) return NULL; - } dai->component = component; dai->dev = dev; @@ -2577,6 +2585,48 @@ static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component, return dai; } +void snd_soc_unregister_dai(struct snd_soc_dai *dai) +{ + soc_del_dai(dai); +} +EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); + +/** + * snd_soc_register_dai - Register a DAI dynamically & create its widgets + * + * @component: The component the DAIs are registered for + * @dai_drv: DAI driver to use for the DAI + * + * Topology can use this API to register DAIs when probing a component. + * These DAIs's widgets will be freed in the card cleanup and the DAIs + * will be freed in the component cleanup. + */ +struct snd_soc_dai *snd_soc_register_dai(struct snd_soc_component *component, + struct snd_soc_dai_driver *dai_drv, + bool legacy_dai_naming) +{ + struct device *dev = component->dev; + + dev_dbg(dev, "ASoC: dai register %s\n", dai_drv->name); + + lockdep_assert_held(&client_mutex); + return soc_add_dai(component, dai_drv, legacy_dai_naming); +} +EXPORT_SYMBOL_GPL(snd_soc_register_dai); + +/** + * snd_soc_unregister_dai - Unregister DAIs from the ASoC core + * + * @component: The component for which the DAIs should be unregistered + */ +static void snd_soc_unregister_dais(struct snd_soc_component *component) +{ + struct snd_soc_dai *dai, *_dai; + + for_each_component_dais_safe(component, dai, _dai) + snd_soc_unregister_dai(dai); +} + /** * snd_soc_register_dais - Register a DAI with the ASoC core * @@ -2588,16 +2638,12 @@ static int snd_soc_register_dais(struct snd_soc_component *component, struct snd_soc_dai_driver *dai_drv, size_t count) { - struct device *dev = component->dev; struct snd_soc_dai *dai; unsigned int i; int ret; - dev_dbg(dev, "ASoC: dai register %s #%zu\n", dev_name(dev), count); - for (i = 0; i < count; i++) { - - dai = soc_add_dai(component, dai_drv + i, count == 1 && + dai = snd_soc_register_dai(component, dai_drv + i, count == 1 && !component->driver->non_legacy_dai_naming); if (dai == NULL) { ret = -ENOMEM; @@ -2613,49 +2659,6 @@ err: return ret; } -/** - * snd_soc_register_dai - Register a DAI dynamically & create its widgets - * - * @component: The component the DAIs are registered for - * @dai_drv: DAI driver to use for the DAI - * - * Topology can use this API to register DAIs when probing a component. - * These DAIs's widgets will be freed in the card cleanup and the DAIs - * will be freed in the component cleanup. - */ -int snd_soc_register_dai(struct snd_soc_component *component, - struct snd_soc_dai_driver *dai_drv) -{ - struct snd_soc_dapm_context *dapm = - snd_soc_component_get_dapm(component); - struct snd_soc_dai *dai; - int ret; - - if (dai_drv->dobj.type != SND_SOC_DOBJ_PCM) { - dev_err(component->dev, "Invalid dai type %d\n", - dai_drv->dobj.type); - return -EINVAL; - } - - lockdep_assert_held(&client_mutex); - dai = soc_add_dai(component, dai_drv, false); - if (!dai) - return -ENOMEM; - - /* - * Create the DAI widgets here. After adding DAIs, topology may - * also add routes that need these widgets as source or sink. - */ - ret = snd_soc_dapm_new_dai_widgets(dapm, dai); - if (ret != 0) { - dev_err(component->dev, - "Failed to create DAI widgets %d\n", ret); - } - - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_register_dai); - static int snd_soc_component_initialize(struct snd_soc_component *component, const struct snd_soc_component_driver *driver, struct device *dev) { @@ -2726,40 +2729,6 @@ EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap); #endif -static void snd_soc_component_add(struct snd_soc_component *component) -{ - mutex_lock(&client_mutex); - - if (!component->driver->write && !component->driver->read) { - if (!component->regmap) - component->regmap = dev_get_regmap(component->dev, - NULL); - if (component->regmap) - snd_soc_component_setup_regmap(component); - } - - /* see for_each_component */ - list_add(&component->list, &component_list); - - mutex_unlock(&client_mutex); -} - -static void snd_soc_component_cleanup(struct snd_soc_component *component) -{ - snd_soc_unregister_dais(component); - kfree(component->name); -} - -static void snd_soc_component_del_unlocked(struct snd_soc_component *component) -{ - struct snd_soc_card *card = component->card; - - if (card) - snd_soc_unbind_card(card, false); - - list_del(&component->list); -} - #define ENDIANNESS_MAP(name) \ (SNDRV_PCM_FMTBIT_##name##LE | SNDRV_PCM_FMTBIT_##name##BE) static u64 endianness_format_map[] = { @@ -2804,6 +2773,18 @@ static void snd_soc_try_rebind_card(void) list_del(&card->list); } +static void snd_soc_del_component_unlocked(struct snd_soc_component *component) +{ + struct snd_soc_card *card = component->card; + + snd_soc_unregister_dais(component); + + if (card) + snd_soc_unbind_card(card, false); + + list_del(&component->list); +} + int snd_soc_add_component(struct device *dev, struct snd_soc_component *component, const struct snd_soc_component_driver *component_driver, @@ -2813,6 +2794,8 @@ int snd_soc_add_component(struct device *dev, int ret; int i; + mutex_lock(&client_mutex); + ret = snd_soc_component_initialize(component, component_driver, dev); if (ret) goto err_free; @@ -2830,14 +2813,26 @@ int snd_soc_add_component(struct device *dev, goto err_cleanup; } - snd_soc_component_add(component); - snd_soc_try_rebind_card(); + if (!component->driver->write && !component->driver->read) { + if (!component->regmap) + component->regmap = dev_get_regmap(component->dev, + NULL); + if (component->regmap) + snd_soc_component_setup_regmap(component); + } - return 0; + /* see for_each_component */ + list_add(&component->list, &component_list); err_cleanup: - snd_soc_component_cleanup(component); + if (ret < 0) + snd_soc_del_component_unlocked(component); err_free: + mutex_unlock(&client_mutex); + + if (ret == 0) + snd_soc_try_rebind_card(); + return ret; } EXPORT_SYMBOL_GPL(snd_soc_add_component); @@ -2864,62 +2859,21 @@ EXPORT_SYMBOL_GPL(snd_soc_register_component); * * @dev: The device to unregister */ -static int __snd_soc_unregister_component(struct device *dev) -{ - struct snd_soc_component *component; - int found = 0; - - mutex_lock(&client_mutex); - for_each_component(component) { - if (dev != component->dev) - continue; - - snd_soc_tplg_component_remove(component, - SND_SOC_TPLG_INDEX_ALL); - snd_soc_component_del_unlocked(component); - found = 1; - break; - } - mutex_unlock(&client_mutex); - - if (found) - snd_soc_component_cleanup(component); - - return found; -} - void snd_soc_unregister_component(struct device *dev) { - while (__snd_soc_unregister_component(dev)) - ; -} -EXPORT_SYMBOL_GPL(snd_soc_unregister_component); - -struct snd_soc_component *snd_soc_lookup_component(struct device *dev, - const char *driver_name) -{ struct snd_soc_component *component; - struct snd_soc_component *ret; - ret = NULL; mutex_lock(&client_mutex); - for_each_component(component) { - if (dev != component->dev) - continue; - - if (driver_name && - (driver_name != component->driver->name) && - (strcmp(component->driver->name, driver_name) != 0)) - continue; + while (1) { + component = snd_soc_lookup_component_nolocked(dev, NULL); + if (!component) + break; - ret = component; - break; + snd_soc_del_component_unlocked(component); } mutex_unlock(&client_mutex); - - return ret; } -EXPORT_SYMBOL_GPL(snd_soc_lookup_component); +EXPORT_SYMBOL_GPL(snd_soc_unregister_component); /* Retrieve a card's name from device tree */ int snd_soc_of_parse_card_name(struct snd_soc_card *card, |