diff options
Diffstat (limited to 'sound/soc/soc-core.c')
| -rw-r--r-- | sound/soc/soc-core.c | 1491 |
1 files changed, 1058 insertions, 433 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 054437660678..1e94edba12eb 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -31,8 +31,8 @@ #include <linux/of.h> #include <linux/of_graph.h> #include <linux/dmi.h> +#include <linux/acpi.h> #include <sound/core.h> -#include <sound/jack.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> @@ -44,8 +44,6 @@ #define CREATE_TRACE_POINTS #include <trace/events/asoc.h> -#define NAME_SIZE 32 - static DEFINE_MUTEX(client_mutex); static LIST_HEAD(component_list); static LIST_HEAD(unbind_card_list); @@ -74,12 +72,12 @@ static ssize_t pmdown_time_show(struct device *dev, { struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); - return sprintf(buf, "%ld\n", rtd->pmdown_time); + return sysfs_emit(buf, "%ld\n", rtd->pmdown_time); } -static ssize_t pmdown_time_set(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t pmdown_time_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) { struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); int ret; @@ -91,7 +89,7 @@ static ssize_t pmdown_time_set(struct device *dev, return count; } -static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); +static DEVICE_ATTR_RW(pmdown_time); static struct attribute *soc_dev_attrs[] = { &dev_attr_pmdown_time.attr, @@ -109,7 +107,7 @@ static umode_t soc_dev_attr_is_visible(struct kobject *kobj, if (attr == &dev_attr_pmdown_time.attr) return attr->mode; /* always visible */ - return rtd->num_codecs ? attr->mode : 0; /* enabled only with codec */ + return rtd->dai_link->num_codecs ? attr->mode : 0; /* enabled only with codec */ } static const struct attribute_group soc_dapm_dev_group = { @@ -231,33 +229,89 @@ static void snd_soc_debugfs_exit(void) #else -static inline void soc_init_component_debugfs( - struct snd_soc_component *component) +static inline void soc_init_component_debugfs(struct snd_soc_component *component) { } +static inline void soc_cleanup_component_debugfs(struct snd_soc_component *component) { } +static inline void soc_init_card_debugfs(struct snd_soc_card *card) { } +static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) { } +static inline void snd_soc_debugfs_init(void) { } +static inline void snd_soc_debugfs_exit(void) { } + +#endif + +static int snd_soc_is_match_dai_args(const struct of_phandle_args *args1, + const struct of_phandle_args *args2) { + if (!args1 || !args2) + return 0; + + if (args1->np != args2->np) + return 0; + + for (int i = 0; i < args1->args_count; i++) + if (args1->args[i] != args2->args[i]) + return 0; + + return 1; } -static inline void soc_cleanup_component_debugfs( - struct snd_soc_component *component) +static inline int snd_soc_dlc_component_is_empty(struct snd_soc_dai_link_component *dlc) { + return !(dlc->dai_args || dlc->name || dlc->of_node); } -static inline void soc_init_card_debugfs(struct snd_soc_card *card) +static inline int snd_soc_dlc_component_is_invalid(struct snd_soc_dai_link_component *dlc) { + return (dlc->name && dlc->of_node); } -static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) +static inline int snd_soc_dlc_dai_is_empty(struct snd_soc_dai_link_component *dlc) { + return !(dlc->dai_args || dlc->dai_name); } -static inline void snd_soc_debugfs_init(void) +static int snd_soc_is_matching_dai(const struct snd_soc_dai_link_component *dlc, + struct snd_soc_dai *dai) { + if (!dlc) + return 0; + + if (dlc->dai_args) + return snd_soc_is_match_dai_args(dai->driver->dai_args, dlc->dai_args); + + if (!dlc->dai_name) + return 1; + + /* see snd_soc_dai_name_get() */ + + if (dai->driver->name && + strcmp(dlc->dai_name, dai->driver->name) == 0) + return 1; + + if (strcmp(dlc->dai_name, dai->name) == 0) + return 1; + + if (dai->component->name && + strcmp(dlc->dai_name, dai->component->name) == 0) + return 1; + + return 0; } -static inline void snd_soc_debugfs_exit(void) +const char *snd_soc_dai_name_get(struct snd_soc_dai *dai) { -} + /* see snd_soc_is_matching_dai() */ + if (dai->driver->name) + return dai->driver->name; -#endif + if (dai->name) + return dai->name; + + if (dai->component->name) + return dai->component->name; + + return NULL; +} +EXPORT_SYMBOL_GPL(snd_soc_dai_name_get); static int snd_soc_rtd_add_component(struct snd_soc_pcm_runtime *rtd, struct snd_soc_component *component) @@ -366,10 +420,10 @@ EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime); */ void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd) { - struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); + struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); int playback = SNDRV_PCM_STREAM_PLAYBACK; - mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd); dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", @@ -385,7 +439,7 @@ void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd) SND_SOC_DAPM_STREAM_STOP); } - mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd); } EXPORT_SYMBOL_GPL(snd_soc_close_delayed_work); @@ -415,6 +469,14 @@ static void soc_free_pcm_runtime(struct snd_soc_pcm_runtime *rtd) * it is alloced *before* rtd. * see * soc_new_pcm_runtime() + * + * We don't need to mind freeing for rtd, + * because it was created from dev (= rtd->dev) + * see + * soc_new_pcm_runtime() + * + * rtd = devm_kzalloc(dev, ...); + * rtd->dev = dev */ device_unregister(rtd->dev); } @@ -460,12 +522,14 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( */ rtd = devm_kzalloc(dev, sizeof(*rtd) + - sizeof(*component) * (dai_link->num_cpus + + sizeof(component) * (dai_link->num_cpus + dai_link->num_codecs + dai_link->num_platforms), GFP_KERNEL); - if (!rtd) - goto free_rtd; + if (!rtd) { + device_unregister(dev); + return NULL; + } rtd->dev = dev; INIT_LIST_HEAD(&rtd->list); @@ -490,14 +554,13 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( * ^cpu_dais ^codec_dais * |--- num_cpus ---|--- num_codecs --| * see - * asoc_rtd_to_cpu() - * asoc_rtd_to_codec() + * snd_soc_rtd_to_cpu() + * snd_soc_rtd_to_codec() */ - rtd->num_cpus = dai_link->num_cpus; - rtd->num_codecs = dai_link->num_codecs; rtd->card = card; rtd->dai_link = dai_link; rtd->num = card->num_rtd++; + rtd->pmdown_time = pmdown_time; /* default power off timeout */ /* see for_each_card_rtds */ list_add_tail(&rtd->list, &card->rtd_list); @@ -513,6 +576,28 @@ free_rtd: return NULL; } +static void snd_soc_fill_dummy_dai(struct snd_soc_card *card) +{ + struct snd_soc_dai_link *dai_link; + int i; + + /* + * COMP_DUMMY() creates size 0 array on dai_link. + * Fill it as dummy DAI in case of CPU/Codec here. + * Do nothing for Platform. + */ + for_each_card_prelinks(card, i, dai_link) { + if (dai_link->num_cpus == 0 && dai_link->cpus) { + dai_link->num_cpus = 1; + dai_link->cpus = &snd_soc_dummy_dlc; + } + if (dai_link->num_codecs == 0 && dai_link->codecs) { + dai_link->num_codecs = 1; + dai_link->codecs = &snd_soc_dummy_dlc; + } + } +} + static void snd_soc_flush_all_delayed_work(struct snd_soc_card *card) { struct snd_soc_pcm_runtime *rtd; @@ -522,40 +607,63 @@ static void snd_soc_flush_all_delayed_work(struct snd_soc_card *card) } #ifdef CONFIG_PM_SLEEP +static void soc_playback_digital_mute(struct snd_soc_card *card, int mute) +{ + struct snd_soc_pcm_runtime *rtd; + struct snd_soc_dai *dai; + int playback = SNDRV_PCM_STREAM_PLAYBACK; + int i; + + for_each_card_rtds(card, rtd) { + + if (rtd->dai_link->ignore_suspend) + continue; + + for_each_rtd_dais(rtd, i, dai) { + if (snd_soc_dai_stream_active(dai, playback)) + snd_soc_dai_digital_mute(dai, mute, playback); + } + } +} + +static void soc_dapm_suspend_resume(struct snd_soc_card *card, int event) +{ + struct snd_soc_pcm_runtime *rtd; + int stream; + + for_each_card_rtds(card, rtd) { + + if (rtd->dai_link->ignore_suspend) + continue; + + for_each_pcm_streams(stream) + snd_soc_dapm_stream_event(rtd, stream, event); + } +} + /* powers down audio subsystem for suspend */ int snd_soc_suspend(struct device *dev) { struct snd_soc_card *card = dev_get_drvdata(dev); struct snd_soc_component *component; struct snd_soc_pcm_runtime *rtd; - int playback = SNDRV_PCM_STREAM_PLAYBACK; int i; /* If the card is not initialized yet there is nothing to do */ - if (!card->instantiated) + if (!snd_soc_card_is_instantiated(card)) return 0; /* * Due to the resume being scheduled into a workqueue we could * suspend before that's finished - wait for it to complete. */ - snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); + snd_power_wait(card->snd_card); /* we're going to block userspace touching us until resume completes */ snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); /* mute any active DACs */ - for_each_card_rtds(card, rtd) { - struct snd_soc_dai *dai; - - if (rtd->dai_link->ignore_suspend) - continue; - - for_each_rtd_dais(rtd, i, dai) { - if (snd_soc_dai_stream_active(dai, playback)) - snd_soc_dai_digital_mute(dai, 1, playback); - } - } + soc_playback_digital_mute(card, 1); /* suspend all pcms */ for_each_card_rtds(card, rtd) { @@ -570,16 +678,7 @@ int snd_soc_suspend(struct device *dev) /* close any waiting streams */ snd_soc_flush_all_delayed_work(card); - for_each_card_rtds(card, rtd) { - int stream; - - if (rtd->dai_link->ignore_suspend) - continue; - - for_each_pcm_streams(stream) - snd_soc_dapm_stream_event(rtd, stream, - SND_SOC_DAPM_STREAM_SUSPEND); - } + soc_dapm_suspend_resume(card, SND_SOC_DAPM_STREAM_SUSPEND); /* Recheck all endpoints too, their state is affected by suspend */ dapm_mark_endpoints_dirty(card); @@ -650,9 +749,7 @@ static void soc_resume_deferred(struct work_struct *work) struct snd_soc_card *card = container_of(work, struct snd_soc_card, deferred_resume_work); - struct snd_soc_pcm_runtime *rtd; struct snd_soc_component *component; - int i; /* * our power state is still SNDRV_CTL_POWER_D3hot from suspend time, @@ -671,30 +768,10 @@ static void soc_resume_deferred(struct work_struct *work) snd_soc_component_resume(component); } - for_each_card_rtds(card, rtd) { - int stream; - - if (rtd->dai_link->ignore_suspend) - continue; - - for_each_pcm_streams(stream) - snd_soc_dapm_stream_event(rtd, stream, - SND_SOC_DAPM_STREAM_RESUME); - } + soc_dapm_suspend_resume(card, SND_SOC_DAPM_STREAM_RESUME); /* unmute any active DACs */ - for_each_card_rtds(card, rtd) { - struct snd_soc_dai *dai; - int playback = SNDRV_PCM_STREAM_PLAYBACK; - - if (rtd->dai_link->ignore_suspend) - continue; - - for_each_rtd_dais(rtd, i, dai) { - if (snd_soc_dai_stream_active(dai, playback)) - snd_soc_dai_digital_mute(dai, 0, playback); - } - } + soc_playback_digital_mute(card, 0); snd_soc_card_resume_post(card); @@ -715,7 +792,7 @@ int snd_soc_resume(struct device *dev) struct snd_soc_component *component; /* If the card is not initialized yet there is nothing to do */ - if (!card->instantiated) + if (!snd_soc_card_is_instantiated(card)) return 0; /* activate pins from sleep state */ @@ -739,9 +816,7 @@ static void soc_resume_init(struct snd_soc_card *card) #else #define snd_soc_suspend NULL #define snd_soc_resume NULL -static inline void soc_resume_init(struct snd_soc_card *card) -{ -} +static inline void soc_resume_init(struct snd_soc_card *card) { } #endif static struct device_node @@ -756,6 +831,20 @@ static struct device_node return of_node; } +struct of_phandle_args *snd_soc_copy_dai_args(struct device *dev, + const struct of_phandle_args *args) +{ + struct of_phandle_args *ret = devm_kzalloc(dev, sizeof(*ret), GFP_KERNEL); + + if (!ret) + return NULL; + + *ret = *args; + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_copy_dai_args); + static int snd_soc_is_matching_component( const struct snd_soc_dai_link_component *dlc, struct snd_soc_component *component) @@ -765,6 +854,15 @@ static int snd_soc_is_matching_component( if (!dlc) return 0; + if (dlc->dai_args) { + struct snd_soc_dai *dai; + + for_each_component_dais(component, dai) + if (snd_soc_is_matching_dai(dlc, dai)) + return 1; + return 0; + } + component_of_node = soc_component_to_node(component); if (dlc->of_node && component_of_node != dlc->of_node) @@ -817,18 +915,11 @@ struct snd_soc_dai *snd_soc_find_dai( lockdep_assert_held(&client_mutex); /* Find CPU DAI from registered DAIs */ - for_each_component(component) { - if (!snd_soc_is_matching_component(dlc, component)) - continue; - for_each_component_dais(component, dai) { - if (dlc->dai_name && strcmp(dai->name, dlc->dai_name) - && (!dai->driver->name - || strcmp(dai->driver->name, dlc->dai_name))) - continue; - - return dai; - } - } + for_each_component(component) + if (snd_soc_is_matching_component(dlc, component)) + for_each_component_dais(component, dai) + if (snd_soc_is_matching_dai(dlc, dai)) + return dai; return NULL; } @@ -851,99 +942,188 @@ 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 *cpu, *codec, *platform; + struct snd_soc_dai_link_component *dlc; - for_each_link_codecs(link, i, codec) { + /* Codec check */ + for_each_link_codecs(link, i, dlc) { /* * 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; - } + if (snd_soc_dlc_component_is_invalid(dlc)) + goto component_invalid; + + if (snd_soc_dlc_component_is_empty(dlc)) + goto component_empty; /* 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; - } + if (snd_soc_dlc_dai_is_empty(dlc)) + goto dai_empty; /* * Defer card registration if codec component is not added to * component list. */ - if (!soc_find_component(codec)) { - dev_dbg(card->dev, - "ASoC: codec component %s not found for link %s\n", - codec->name, link->name); - return -EPROBE_DEFER; - } + if (!soc_find_component(dlc)) + goto component_not_found; } - for_each_link_platforms(link, i, platform) { + /* Platform check */ + for_each_link_platforms(link, i, dlc) { /* * 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; - } + if (snd_soc_dlc_component_is_invalid(dlc)) + goto component_invalid; + + if (snd_soc_dlc_component_is_empty(dlc)) + goto component_empty; /* * Defer card registration if platform component is not added to * component list. */ - if (!soc_find_component(platform)) { - dev_dbg(card->dev, - "ASoC: platform component %s not found for link %s\n", - platform->name, link->name); - return -EPROBE_DEFER; - } + if (!soc_find_component(dlc)) + goto component_not_found; } - for_each_link_cpus(link, i, cpu) { + /* CPU check */ + for_each_link_cpus(link, i, dlc) { /* * 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 (cpu->name && cpu->of_node) { - dev_err(card->dev, - "ASoC: Neither/both cpu name/of_node are set for %s\n", - link->name); - return -EINVAL; - } + if (snd_soc_dlc_component_is_invalid(dlc)) + goto component_invalid; - /* - * Defer card registration if cpu dai component is not added to - * component list. - */ - if ((cpu->of_node || cpu->name) && - !soc_find_component(cpu)) { - dev_dbg(card->dev, - "ASoC: cpu component %s not found for link %s\n", - cpu->name, link->name); - return -EPROBE_DEFER; + + if (snd_soc_dlc_component_is_empty(dlc)) { + /* + * At least one of CPU DAI name or CPU device name/node must be specified + */ + if (snd_soc_dlc_dai_is_empty(dlc)) + goto component_dai_empty; + } else { + /* + * Defer card registration if Component is not added + */ + if (!soc_find_component(dlc)) + goto component_not_found; } + } - /* - * At least one of CPU DAI name or CPU device name/node must be - * specified - */ - if (!cpu->dai_name && - !(cpu->name || cpu->of_node)) { + return 0; + +component_invalid: + dev_err(card->dev, "ASoC: Both Component name/of_node are set for %s\n", link->name); + return -EINVAL; + +component_empty: + dev_err(card->dev, "ASoC: Neither Component name/of_node are set for %s\n", link->name); + return -EINVAL; + +component_not_found: + dev_dbg(card->dev, "ASoC: Component %s not found for link %s\n", dlc->name, link->name); + return -EPROBE_DEFER; + +dai_empty: + dev_err(card->dev, "ASoC: DAI name is not set for %s\n", link->name); + return -EINVAL; + +component_dai_empty: + dev_err(card->dev, "ASoC: Neither DAI/Component name/of_node are set for %s\n", link->name); + return -EINVAL; +} + +#define MAX_DEFAULT_CH_MAP_SIZE 8 +static struct snd_soc_dai_link_ch_map default_ch_map_sync[MAX_DEFAULT_CH_MAP_SIZE] = { + { .cpu = 0, .codec = 0 }, + { .cpu = 1, .codec = 1 }, + { .cpu = 2, .codec = 2 }, + { .cpu = 3, .codec = 3 }, + { .cpu = 4, .codec = 4 }, + { .cpu = 5, .codec = 5 }, + { .cpu = 6, .codec = 6 }, + { .cpu = 7, .codec = 7 }, +}; +static struct snd_soc_dai_link_ch_map default_ch_map_1cpu[MAX_DEFAULT_CH_MAP_SIZE] = { + { .cpu = 0, .codec = 0 }, + { .cpu = 0, .codec = 1 }, + { .cpu = 0, .codec = 2 }, + { .cpu = 0, .codec = 3 }, + { .cpu = 0, .codec = 4 }, + { .cpu = 0, .codec = 5 }, + { .cpu = 0, .codec = 6 }, + { .cpu = 0, .codec = 7 }, +}; +static struct snd_soc_dai_link_ch_map default_ch_map_1codec[MAX_DEFAULT_CH_MAP_SIZE] = { + { .cpu = 0, .codec = 0 }, + { .cpu = 1, .codec = 0 }, + { .cpu = 2, .codec = 0 }, + { .cpu = 3, .codec = 0 }, + { .cpu = 4, .codec = 0 }, + { .cpu = 5, .codec = 0 }, + { .cpu = 6, .codec = 0 }, + { .cpu = 7, .codec = 0 }, +}; +static int snd_soc_compensate_channel_connection_map(struct snd_soc_card *card, + struct snd_soc_dai_link *dai_link) +{ + struct snd_soc_dai_link_ch_map *ch_maps; + int i; + + /* + * dai_link->ch_maps indicates how CPU/Codec are connected. + * It will be a map seen from a larger number of DAI. + * see + * soc.h :: [dai_link->ch_maps Image sample] + */ + + /* it should have ch_maps if connection was N:M */ + if (dai_link->num_cpus > 1 && dai_link->num_codecs > 1 && + dai_link->num_cpus != dai_link->num_codecs && !dai_link->ch_maps) { + dev_err(card->dev, "need to have ch_maps when N:M connection (%s)", + dai_link->name); + return -EINVAL; + } + + /* do nothing if it has own maps */ + if (dai_link->ch_maps) + goto sanity_check; + + /* check default map size */ + if (dai_link->num_cpus > MAX_DEFAULT_CH_MAP_SIZE || + dai_link->num_codecs > MAX_DEFAULT_CH_MAP_SIZE) { + dev_err(card->dev, "soc-core.c needs update default_connection_maps"); + return -EINVAL; + } + + /* Compensate missing map for ... */ + if (dai_link->num_cpus == dai_link->num_codecs) + dai_link->ch_maps = default_ch_map_sync; /* for 1:1 or N:N */ + else if (dai_link->num_cpus < dai_link->num_codecs) + dai_link->ch_maps = default_ch_map_1cpu; /* for 1:N */ + else + dai_link->ch_maps = default_ch_map_1codec; /* for N:1 */ + +sanity_check: + dev_dbg(card->dev, "dai_link %s\n", dai_link->stream_name); + for_each_link_ch_maps(dai_link, i, ch_maps) { + if ((ch_maps->cpu >= dai_link->num_cpus) || + (ch_maps->codec >= dai_link->num_codecs)) { dev_err(card->dev, - "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", - link->name); + "unexpected dai_link->ch_maps[%d] index (cpu(%d/%d) codec(%d/%d))", + i, + ch_maps->cpu, dai_link->num_cpus, + ch_maps->codec, dai_link->num_codecs); return -EINVAL; } + + dev_dbg(card->dev, " [%d] cpu%d <-> codec%d\n", + i, ch_maps->cpu, ch_maps->codec); } return 0; @@ -961,9 +1141,6 @@ void snd_soc_remove_pcm_runtime(struct snd_soc_card *card, { lockdep_assert_held(&client_mutex); - /* release machine specific resources */ - snd_soc_link_exit(rtd); - /* * Notify the machine driver for extra destruction */ @@ -984,8 +1161,8 @@ EXPORT_SYMBOL_GPL(snd_soc_remove_pcm_runtime); * topology component. And machine drivers can still define static * DAI links in dai_link array. */ -int snd_soc_add_pcm_runtime(struct snd_soc_card *card, - struct snd_soc_dai_link *dai_link) +static int snd_soc_add_pcm_runtime(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, *cpu; @@ -1015,25 +1192,25 @@ int snd_soc_add_pcm_runtime(struct snd_soc_card *card, return -ENOMEM; for_each_link_cpus(dai_link, i, cpu) { - asoc_rtd_to_cpu(rtd, i) = snd_soc_find_dai(cpu); - if (!asoc_rtd_to_cpu(rtd, i)) { + snd_soc_rtd_to_cpu(rtd, i) = snd_soc_find_dai(cpu); + if (!snd_soc_rtd_to_cpu(rtd, i)) { dev_info(card->dev, "ASoC: CPU DAI %s not registered\n", cpu->dai_name); goto _err_defer; } - snd_soc_rtd_add_component(rtd, asoc_rtd_to_cpu(rtd, i)->component); + snd_soc_rtd_add_component(rtd, snd_soc_rtd_to_cpu(rtd, i)->component); } /* Find CODEC from registered CODECs */ for_each_link_codecs(dai_link, i, codec) { - asoc_rtd_to_codec(rtd, i) = snd_soc_find_dai(codec); - if (!asoc_rtd_to_codec(rtd, i)) { + snd_soc_rtd_to_codec(rtd, i) = snd_soc_find_dai(codec); + if (!snd_soc_rtd_to_codec(rtd, i)) { dev_info(card->dev, "ASoC: CODEC DAI %s not registered\n", codec->dai_name); goto _err_defer; } - snd_soc_rtd_add_component(rtd, asoc_rtd_to_codec(rtd, i)->component); + snd_soc_rtd_add_component(rtd, snd_soc_rtd_to_codec(rtd, i)->component); } /* Find PLATFORM from registered PLATFORMs */ @@ -1052,29 +1229,244 @@ _err_defer: snd_soc_remove_pcm_runtime(card, rtd); return -EPROBE_DEFER; } -EXPORT_SYMBOL_GPL(snd_soc_add_pcm_runtime); + +int snd_soc_add_pcm_runtimes(struct snd_soc_card *card, + struct snd_soc_dai_link *dai_link, + int num_dai_link) +{ + for (int i = 0; i < num_dai_link; i++) { + int ret; + + ret = snd_soc_compensate_channel_connection_map(card, dai_link + i); + if (ret < 0) + return ret; + + ret = snd_soc_add_pcm_runtime(card, dai_link + i); + if (ret < 0) + return ret; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_add_pcm_runtimes); + +static void snd_soc_runtime_get_dai_fmt(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai_link *dai_link = rtd->dai_link; + struct snd_soc_dai *dai, *not_used; + u64 pos, possible_fmt; + unsigned int mask = 0, dai_fmt = 0; + int i, j, priority, pri, until; + + /* + * Get selectable format from each DAIs. + * + **************************** + * NOTE + * Using .auto_selectable_formats is not mandatory, + * we can select format manually from Sound Card. + * When use it, driver should list well tested format only. + **************************** + * + * ex) + * auto_selectable_formats (= SND_SOC_POSSIBLE_xxx) + * (A) (B) (C) + * DAI0_: { 0x000F, 0x00F0, 0x0F00 }; + * DAI1 : { 0xF000, 0x0F00 }; + * (X) (Y) + * + * "until" will be 3 in this case (MAX array size from DAI0 and DAI1) + * Here is dev_dbg() message and comments + * + * priority = 1 + * DAI0: (pri, fmt) = (1, 000000000000000F) // 1st check (A) DAI1 is not selected + * DAI1: (pri, fmt) = (0, 0000000000000000) // Necessary Waste + * DAI0: (pri, fmt) = (1, 000000000000000F) // 2nd check (A) + * DAI1: (pri, fmt) = (1, 000000000000F000) // (X) + * priority = 2 + * DAI0: (pri, fmt) = (2, 00000000000000FF) // 3rd check (A) + (B) + * DAI1: (pri, fmt) = (1, 000000000000F000) // (X) + * DAI0: (pri, fmt) = (2, 00000000000000FF) // 4th check (A) + (B) + * DAI1: (pri, fmt) = (2, 000000000000FF00) // (X) + (Y) + * priority = 3 + * DAI0: (pri, fmt) = (3, 0000000000000FFF) // 5th check (A) + (B) + (C) + * DAI1: (pri, fmt) = (2, 000000000000FF00) // (X) + (Y) + * found auto selected format: 0000000000000F00 + */ + until = snd_soc_dai_get_fmt_max_priority(rtd); + for (priority = 1; priority <= until; priority++) { + for_each_rtd_dais(rtd, j, not_used) { + + possible_fmt = ULLONG_MAX; + for_each_rtd_dais(rtd, i, dai) { + u64 fmt = 0; + + pri = (j >= i) ? priority : priority - 1; + fmt = snd_soc_dai_get_fmt(dai, pri); + possible_fmt &= fmt; + } + if (possible_fmt) + goto found; + } + } + /* Not Found */ + return; +found: + /* + * convert POSSIBLE_DAIFMT to DAIFMT + * + * Some basic/default settings on each is defined as 0. + * see + * SND_SOC_DAIFMT_NB_NF + * SND_SOC_DAIFMT_GATED + * + * SND_SOC_DAIFMT_xxx_MASK can't notice it if Sound Card specify + * these value, and will be overwrite to auto selected value. + * + * To avoid such issue, loop from 63 to 0 here. + * Small number of SND_SOC_POSSIBLE_xxx will be Hi priority. + * Basic/Default settings of each part and above are defined + * as Hi priority (= small number) of SND_SOC_POSSIBLE_xxx. + */ + for (i = 63; i >= 0; i--) { + pos = 1ULL << i; + switch (possible_fmt & pos) { + /* + * for format + */ + case SND_SOC_POSSIBLE_DAIFMT_I2S: + case SND_SOC_POSSIBLE_DAIFMT_RIGHT_J: + case SND_SOC_POSSIBLE_DAIFMT_LEFT_J: + case SND_SOC_POSSIBLE_DAIFMT_DSP_A: + case SND_SOC_POSSIBLE_DAIFMT_DSP_B: + case SND_SOC_POSSIBLE_DAIFMT_AC97: + case SND_SOC_POSSIBLE_DAIFMT_PDM: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_FORMAT_MASK) | i; + break; + /* + * for clock + */ + case SND_SOC_POSSIBLE_DAIFMT_CONT: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_CLOCK_MASK) | SND_SOC_DAIFMT_CONT; + break; + case SND_SOC_POSSIBLE_DAIFMT_GATED: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_CLOCK_MASK) | SND_SOC_DAIFMT_GATED; + break; + /* + * for clock invert + */ + case SND_SOC_POSSIBLE_DAIFMT_NB_NF: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_INV_MASK) | SND_SOC_DAIFMT_NB_NF; + break; + case SND_SOC_POSSIBLE_DAIFMT_NB_IF: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_INV_MASK) | SND_SOC_DAIFMT_NB_IF; + break; + case SND_SOC_POSSIBLE_DAIFMT_IB_NF: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_INV_MASK) | SND_SOC_DAIFMT_IB_NF; + break; + case SND_SOC_POSSIBLE_DAIFMT_IB_IF: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_INV_MASK) | SND_SOC_DAIFMT_IB_IF; + break; + /* + * for clock provider / consumer + */ + case SND_SOC_POSSIBLE_DAIFMT_CBP_CFP: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) | SND_SOC_DAIFMT_CBP_CFP; + break; + case SND_SOC_POSSIBLE_DAIFMT_CBC_CFP: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) | SND_SOC_DAIFMT_CBC_CFP; + break; + case SND_SOC_POSSIBLE_DAIFMT_CBP_CFC: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) | SND_SOC_DAIFMT_CBP_CFC; + break; + case SND_SOC_POSSIBLE_DAIFMT_CBC_CFC: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) | SND_SOC_DAIFMT_CBC_CFC; + break; + } + } + + /* + * Some driver might have very complex limitation. + * In such case, user want to auto-select non-limitation part, + * and want to manually specify complex part. + * + * Or for example, if both CPU and Codec can be clock provider, + * but because of its quality, user want to specify it manually. + * + * Use manually specified settings if sound card did. + */ + if (!(dai_link->dai_fmt & SND_SOC_DAIFMT_FORMAT_MASK)) + mask |= SND_SOC_DAIFMT_FORMAT_MASK; + if (!(dai_link->dai_fmt & SND_SOC_DAIFMT_CLOCK_MASK)) + mask |= SND_SOC_DAIFMT_CLOCK_MASK; + if (!(dai_link->dai_fmt & SND_SOC_DAIFMT_INV_MASK)) + mask |= SND_SOC_DAIFMT_INV_MASK; + if (!(dai_link->dai_fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK)) + mask |= SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK; + + dai_link->dai_fmt |= (dai_fmt & mask); +} + +/** + * snd_soc_runtime_set_dai_fmt() - Change DAI link format for a ASoC runtime + * @rtd: The runtime for which the DAI link format should be changed + * @dai_fmt: The new DAI link format + * + * This function updates the DAI link format for all DAIs connected to the DAI + * link for the specified runtime. + * + * Note: For setups with a static format set the dai_fmt field in the + * corresponding snd_dai_link struct instead of using this function. + * + * Returns 0 on success, otherwise a negative error code. + */ +int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, + unsigned int dai_fmt) +{ + struct snd_soc_dai *cpu_dai; + struct snd_soc_dai *codec_dai; + unsigned int i; + int ret; + + if (!dai_fmt) + return 0; + + for_each_rtd_codec_dais(rtd, i, codec_dai) { + ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt); + if (ret != 0 && ret != -ENOTSUPP) + return ret; + } + + /* Flip the polarity for the "CPU" end of link */ + dai_fmt = snd_soc_daifmt_clock_provider_flipped(dai_fmt); + + for_each_rtd_cpu_dais(rtd, i, cpu_dai) { + ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); + if (ret != 0 && ret != -ENOTSUPP) + return ret; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt); static int soc_init_pcm_runtime(struct snd_soc_card *card, struct snd_soc_pcm_runtime *rtd) { struct snd_soc_dai_link *dai_link = rtd->dai_link; - struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); struct snd_soc_component *component; int ret, num, i; - /* set default power off timeout */ - rtd->pmdown_time = pmdown_time; - /* do machine specific initialization */ ret = snd_soc_link_init(rtd); if (ret < 0) return ret; - if (dai_link->dai_fmt) { - ret = snd_soc_runtime_set_dai_fmt(rtd, dai_link->dai_fmt); - if (ret) - return ret; - } + snd_soc_runtime_get_dai_fmt(rtd); + ret = snd_soc_runtime_set_dai_fmt(rtd, dai_link->dai_fmt); + if (ret) + goto err; /* add DPCM sysfs entries */ soc_dpcm_debugfs_add(rtd); @@ -1098,22 +1490,27 @@ static int soc_init_pcm_runtime(struct snd_soc_card *card, /* create compress_device if possible */ ret = snd_soc_dai_compress_new(cpu_dai, rtd, num); - if (ret != -ENOTSUPP) { - if (ret < 0) - dev_err(card->dev, "ASoC: can't create compress %s\n", - dai_link->stream_name); - return ret; - } + if (ret != -ENOTSUPP) + goto err; /* create the pcm */ ret = soc_new_pcm(rtd, num); if (ret < 0) { dev_err(card->dev, "ASoC: can't create pcm %s :%d\n", dai_link->stream_name, ret); - return ret; + goto err; } - return snd_soc_pcm_dai_new(rtd); + ret = snd_soc_pcm_dai_new(rtd); + if (ret < 0) + goto err; + + rtd->initialized = true; + + return 0; +err: + snd_soc_link_exit(rtd); + return ret; } static void soc_set_name_prefix(struct snd_soc_card *card, @@ -1126,7 +1523,8 @@ static void soc_set_name_prefix(struct snd_soc_card *card, for (i = 0; i < card->num_configs; i++) { struct snd_soc_codec_conf *map = &card->codec_conf[i]; - if (snd_soc_is_matching_component(&map->dlc, component)) { + if (snd_soc_is_matching_component(&map->dlc, component) && + map->name_prefix) { component->name_prefix = map->name_prefix; return; } @@ -1153,9 +1551,6 @@ static void soc_remove_component(struct snd_soc_component *component, if (probed) snd_soc_component_remove(component); - /* For framework level robustness */ - snd_soc_component_set_jack(component, NULL, NULL); - list_del_init(&component->card_list); snd_soc_dapm_free(snd_soc_component_get_dapm(component)); soc_cleanup_component_debugfs(component); @@ -1172,14 +1567,14 @@ static int soc_probe_component(struct snd_soc_card *card, int probed = 0; int ret; - if (!strcmp(component->name, "snd-soc-dummy")) + if (snd_soc_component_is_dummy(component)) return 0; if (component->card) { if (component->card != card) { dev_err(component->dev, - "Trying to bind component to card \"%s\" but is already bound to card \"%s\"\n", - card->name, component->card->name); + "Trying to bind component \"%s\" to card \"%s\" but is already bound to card \"%s\"\n", + component->name, card->name, component->card->name); return -ENODEV; } return 0; @@ -1216,11 +1611,9 @@ static int soc_probe_component(struct snd_soc_card *card, } ret = snd_soc_component_probe(component); - if (ret < 0) { - dev_err(component->dev, - "ASoC: failed to probe component %d\n", ret); + if (ret < 0) 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", @@ -1288,11 +1681,6 @@ static int soc_probe_link_dais(struct snd_soc_card *card) for_each_comp_order(order) { for_each_card_rtds(card, rtd) { - - dev_dbg(card->dev, - "ASoC: probe %s dai link %d late %d\n", - card->name, rtd->num, order); - /* probe all rtd connected DAIs in good order */ ret = snd_soc_pcm_dai_probe(rtd, order); if (ret) @@ -1407,74 +1795,6 @@ static void soc_remove_aux_devices(struct snd_soc_card *card) } } -/** - * snd_soc_runtime_set_dai_fmt() - Change DAI link format for a ASoC runtime - * @rtd: The runtime for which the DAI link format should be changed - * @dai_fmt: The new DAI link format - * - * This function updates the DAI link format for all DAIs connected to the DAI - * link for the specified runtime. - * - * Note: For setups with a static format set the dai_fmt field in the - * corresponding snd_dai_link struct instead of using this function. - * - * Returns 0 on success, otherwise a negative error code. - */ -int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, - unsigned int dai_fmt) -{ - struct snd_soc_dai *cpu_dai; - struct snd_soc_dai *codec_dai; - unsigned int inv_dai_fmt; - unsigned int i; - int ret; - - for_each_rtd_codec_dais(rtd, i, codec_dai) { - ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt); - if (ret != 0 && ret != -ENOTSUPP) { - dev_warn(codec_dai->dev, - "ASoC: Failed to set DAI format: %d\n", ret); - return ret; - } - } - - /* - * Flip the polarity for the "CPU" end of a CODEC<->CODEC link - * the component which has non_legacy_dai_naming is Codec - */ - inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; - switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBM_CFM: - inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; - break; - case SND_SOC_DAIFMT_CBM_CFS: - inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; - break; - case SND_SOC_DAIFMT_CBS_CFM: - inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; - break; - case SND_SOC_DAIFMT_CBS_CFS: - inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; - break; - } - for_each_rtd_cpu_dais(rtd, i, cpu_dai) { - unsigned int fmt = dai_fmt; - - if (cpu_dai->component->driver->non_legacy_dai_naming) - fmt = inv_dai_fmt; - - ret = snd_soc_dai_set_fmt(cpu_dai, fmt); - if (ret != 0 && ret != -ENOTSUPP) { - dev_warn(cpu_dai->dev, - "ASoC: Failed to set DAI format: %d\n", ret); - return ret; - } - } - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt); - #ifdef CONFIG_DMI /* * If a DMI filed contain strings in this blacklist (e.g. @@ -1551,7 +1871,7 @@ static void append_dmi_string(struct snd_soc_card *card, const char *str) * @flavour: The flavour "differentiator" for the card amongst its peers. * * An Intel machine driver may be used by many different devices but are - * difficult for userspace to differentiate, since machine drivers ususally + * difficult for userspace to differentiate, since machine drivers usually * use their own name as the card short name and leave the card long name * blank. To differentiate such devices and fix bugs due to lack of * device-specific configurations, this function allows DMI info to be used @@ -1572,17 +1892,20 @@ static void append_dmi_string(struct snd_soc_card *card, const char *str) * We only keep number and alphabet characters and a few separator characters * in the card long name since UCM in the user space uses the card long names * as card configuration directory names and AudoConf cannot support special - * charactors like SPACE. + * characters like SPACE. * * Returns 0 on success, otherwise a negative error code. */ int snd_soc_set_dmi_name(struct snd_soc_card *card, const char *flavour) { - const char *vendor, *product, *product_version, *board; + const char *vendor, *product, *board; if (card->long_name) return 0; /* long name already set by driver or from DMI */ + if (!dmi_available) + return 0; + /* make up dmi long name as: vendor-product-version-board */ vendor = dmi_get_system_info(DMI_BOARD_VENDOR); if (!vendor || !is_dmi_valid(vendor)) { @@ -1595,13 +1918,14 @@ int snd_soc_set_dmi_name(struct snd_soc_card *card, const char *flavour) product = dmi_get_system_info(DMI_PRODUCT_NAME); if (product && is_dmi_valid(product)) { + const char *product_version = dmi_get_system_info(DMI_PRODUCT_VERSION); + append_dmi_string(card, product); /* * some vendors like Lenovo may only put a self-explanatory * name in the product version field */ - product_version = dmi_get_system_info(DMI_PRODUCT_VERSION); if (product_version && is_dmi_valid(product_version)) append_dmi_string(card, product_version); } @@ -1666,7 +1990,11 @@ match: dev_err(card->dev, "init platform error"); continue; } - dai_link->platforms->name = component->name; + + if (component->dev->of_node) + dai_link->platforms->of_node = component->dev->of_node; + else + dai_link->platforms->name = component->name; /* convert non BE into BE */ if (!dai_link->no_pcm) { @@ -1724,21 +2052,22 @@ 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) +#define soc_setup_card_name(card, name, name1, name2) \ + __soc_setup_card_name(card, name, sizeof(name), name1, name2) +static void __soc_setup_card_name(struct snd_soc_card *card, + char *name, int len, + const char *name1, const char *name2) { + const char *src = name1 ? name1 : name2; int i; - snprintf(name, len, "%s", name1 ? name1 : name2); + snprintf(name, len, "%s", src); - if (!normalization) + if (name != card->snd_card->driver) return; /* - * Name normalization + * Name normalization (driver field) * * The driver name is somewhat special, as it's used as a key for * searches in the user-space. @@ -1758,6 +2087,14 @@ static void __soc_setup_card_name(char *name, int len, break; } } + + /* + * The driver field should contain a valid string from the user view. + * The wrapping usually does not work so well here. Set a smaller string + * in the specific ASoC driver. + */ + if (strlen(src) > len - 1) + dev_err(card->dev, "ASoC: driver name too long '%s' -> '%s'\n", src, name); } static void soc_cleanup_card_resources(struct snd_soc_card *card) @@ -1769,6 +2106,10 @@ static void soc_cleanup_card_resources(struct snd_soc_card *card) snd_soc_dapm_shutdown(card); + /* release machine specific resources */ + for_each_card_rtds(card, rtd) + if (rtd->initialized) + snd_soc_link_exit(rtd); /* remove and free each DAI */ soc_remove_link_dais(card); soc_remove_link_components(card); @@ -1794,7 +2135,7 @@ static void soc_cleanup_card_resources(struct snd_soc_card *card) static void snd_soc_unbind_card(struct snd_soc_card *card, bool unregister) { - if (card->instantiated) { + if (snd_soc_card_is_instantiated(card)) { card->instantiated = false; snd_soc_flush_all_delayed_work(card); @@ -1811,11 +2152,12 @@ static int snd_soc_bind_card(struct snd_soc_card *card) { struct snd_soc_pcm_runtime *rtd; struct snd_soc_component *component; - struct snd_soc_dai_link *dai_link; - int ret, i; + int ret; mutex_lock(&client_mutex); - mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); + snd_soc_card_mutex_lock_root(card); + + snd_soc_fill_dummy_dai(card); snd_soc_dapm_init(&card->dapm, card, NULL); @@ -1829,11 +2171,9 @@ static int snd_soc_bind_card(struct snd_soc_card *card) /* add predefined DAI links to the list */ card->num_rtd = 0; - for_each_card_prelinks(card, i, dai_link) { - ret = snd_soc_add_pcm_runtime(card, dai_link); - if (ret < 0) - goto probe_end; - } + ret = snd_soc_add_pcm_runtimes(card, card->dai_link, card->num_links); + if (ret < 0) + goto probe_end; /* card bind complete so register a sound card */ ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, @@ -1867,8 +2207,10 @@ static int snd_soc_bind_card(struct snd_soc_card *card) /* probe all components used by DAI links on this card */ ret = soc_probe_link_components(card); if (ret < 0) { - dev_err(card->dev, - "ASoC: failed to instantiate card %d\n", ret); + if (ret != -EPROBE_DEFER) { + dev_err(card->dev, + "ASoC: failed to instantiate card %d\n", ret); + } goto probe_end; } @@ -1925,12 +2267,12 @@ static int snd_soc_bind_card(struct snd_soc_card *card) /* try to set some sane longname if DMI is available */ snd_soc_set_dmi_name(card, NULL); - 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); + soc_setup_card_name(card, card->snd_card->shortname, + card->name, NULL); + soc_setup_card_name(card, card->snd_card->longname, + card->long_name, card->name); + soc_setup_card_name(card, card->snd_card->driver, + card->driver_name, card->name); if (card->components) { /* the current implementation of snd_component_add() accepts */ @@ -1950,6 +2292,7 @@ static int snd_soc_bind_card(struct snd_soc_card *card) goto probe_end; snd_soc_dapm_new_widgets(card); + snd_soc_card_fixup_controls(card); ret = snd_card_register(card->snd_card); if (ret < 0) { @@ -1971,7 +2314,7 @@ probe_end: if (ret < 0) soc_cleanup_card_resources(card); - mutex_unlock(&card->mutex); + snd_soc_card_mutex_unlock(card); mutex_unlock(&client_mutex); return ret; @@ -1996,16 +2339,7 @@ static int soc_probe(struct platform_device *pdev) /* Bodge while we unpick instantiation */ card->dev = &pdev->dev; - return snd_soc_register_card(card); -} - -/* removes a socdev */ -static int soc_remove(struct platform_device *pdev) -{ - struct snd_soc_card *card = platform_get_drvdata(pdev); - - snd_soc_unregister_card(card); - return 0; + return devm_snd_soc_register_card(&pdev->dev, card); } int snd_soc_poweroff(struct device *dev) @@ -2013,7 +2347,7 @@ int snd_soc_poweroff(struct device *dev) struct snd_soc_card *card = dev_get_drvdata(dev); struct snd_soc_component *component; - if (!card->instantiated) + if (!snd_soc_card_is_instantiated(card)) return 0; /* @@ -2049,7 +2383,6 @@ static struct platform_driver soc_driver = { .pm = &snd_soc_pm_ops, }, .probe = soc_probe, - .remove = soc_remove, }; /** @@ -2099,13 +2432,12 @@ static int snd_soc_add_controls(struct snd_card *card, struct device *dev, const struct snd_kcontrol_new *controls, int num_controls, const char *prefix, void *data) { - int err, i; + int i; for (i = 0; i < num_controls; i++) { const struct snd_kcontrol_new *control = &controls[i]; - - err = snd_ctl_add(card, snd_soc_cnew(control, data, - control->name, prefix)); + int err = snd_ctl_add(card, snd_soc_cnew(control, data, + control->name, prefix)); if (err < 0) { dev_err(dev, "ASoC: Failed to add %s: %d\n", control->name, err); @@ -2157,7 +2489,7 @@ EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); /** * snd_soc_add_dai_controls - add an array of controls to a DAI. - * Convienience function to add a list of controls. + * Convenience function to add a list of controls. * * @dai: DAI to add controls to * @controls: array of controls to add @@ -2202,7 +2534,6 @@ int snd_soc_register_card(struct snd_soc_card *card) mutex_init(&card->mutex); mutex_init(&card->dapm_mutex); mutex_init(&card->pcm_mutex); - spin_lock_init(&card->dpcm_lock); return snd_soc_bind_card(card); } @@ -2214,14 +2545,12 @@ EXPORT_SYMBOL_GPL(snd_soc_register_card); * @card: Card to unregister * */ -int snd_soc_unregister_card(struct snd_soc_card *card) +void snd_soc_unregister_card(struct snd_soc_card *card) { mutex_lock(&client_mutex); snd_soc_unbind_card(card, true); mutex_unlock(&client_mutex); dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); - - return 0; } EXPORT_SYMBOL_GPL(snd_soc_unregister_card); @@ -2231,13 +2560,16 @@ EXPORT_SYMBOL_GPL(snd_soc_unregister_card); */ static char *fmt_single_name(struct device *dev, int *id) { - char *found, name[NAME_SIZE]; - int id1, id2; + const char *devname = dev_name(dev); + char *found, *name; + unsigned int id1, id2; - if (dev_name(dev) == NULL) + if (devname == NULL) return NULL; - strlcpy(name, dev_name(dev), NAME_SIZE); + name = devm_kstrdup(dev, devname, GFP_KERNEL); + if (!name) + return NULL; /* are we a "%s.%d" name (platform and SPI components) */ found = strstr(name, dev->driver->name); @@ -2250,23 +2582,21 @@ static char *fmt_single_name(struct device *dev, int *id) found[strlen(dev->driver->name)] = '\0'; } - } else { - /* I2C component devices are named "bus-addr" */ - if (sscanf(name, "%x-%x", &id1, &id2) == 2) { - char tmp[NAME_SIZE]; + /* I2C component devices are named "bus-addr" */ + } else if (sscanf(name, "%x-%x", &id1, &id2) == 2) { - /* create unique ID number from I2C addr and bus */ - *id = ((id1 & 0xffff) << 16) + id2; + /* create unique ID number from I2C addr and bus */ + *id = ((id1 & 0xffff) << 16) + id2; - /* sanitize component name for DAI link creation */ - snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, - name); - strlcpy(name, tmp, NAME_SIZE); - } else - *id = 0; + devm_kfree(dev, name); + + /* sanitize component name for DAI link creation */ + name = devm_kasprintf(dev, GFP_KERNEL, "%s.%s", dev->driver->name, devname); + } else { + *id = 0; } - return devm_kstrdup(dev, name, GFP_KERNEL); + return name; } /* @@ -2312,8 +2642,6 @@ struct snd_soc_dai *snd_soc_register_dai(struct snd_soc_component *component, struct device *dev = component->dev; struct snd_soc_dai *dai; - dev_dbg(dev, "ASoC: dynamically register DAI %s\n", dev_name(dev)); - lockdep_assert_held(&client_mutex); dai = devm_kzalloc(dev, sizeof(*dai), GFP_KERNEL); @@ -2352,9 +2680,10 @@ struct snd_soc_dai *snd_soc_register_dai(struct snd_soc_component *component, dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name); return dai; } +EXPORT_SYMBOL_GPL(snd_soc_register_dai); /** - * snd_soc_unregister_dai - Unregister DAIs from the ASoC core + * snd_soc_unregister_dais - Unregister DAIs from the ASoC core * * @component: The component for which the DAIs should be unregistered */ @@ -2383,7 +2712,7 @@ static int snd_soc_register_dais(struct snd_soc_component *component, for (i = 0; i < count; i++) { dai = snd_soc_register_dai(component, dai_drv + i, count == 1 && - !component->driver->non_legacy_dai_naming); + component->driver->legacy_dai_naming); if (dai == NULL) { ret = -ENOMEM; goto err; @@ -2461,6 +2790,7 @@ int snd_soc_component_initialize(struct snd_soc_component *component, INIT_LIST_HEAD(&component->dai_list); INIT_LIST_HEAD(&component->dobj_list); INIT_LIST_HEAD(&component->card_list); + INIT_LIST_HEAD(&component->list); mutex_init(&component->io_mutex); component->name = fmt_single_name(dev, &component->id); @@ -2472,6 +2802,11 @@ int snd_soc_component_initialize(struct snd_soc_component *component, component->dev = dev; component->driver = driver; +#ifdef CONFIG_DEBUG_FS + if (!component->debugfs_prefix) + component->debugfs_prefix = driver->debugfs_prefix; +#endif + return 0; } EXPORT_SYMBOL_GPL(snd_soc_component_initialize); @@ -2578,11 +2913,10 @@ EXPORT_SYMBOL_GPL(snd_soc_unregister_component_by_driver); */ void snd_soc_unregister_component(struct device *dev) { - struct snd_soc_component *component; - mutex_lock(&client_mutex); while (1) { - component = snd_soc_lookup_component_nolocked(dev, NULL); + struct snd_soc_component *component = snd_soc_lookup_component_nolocked(dev, NULL); + if (!component) break; @@ -2636,7 +2970,7 @@ int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, struct device_node *np = card->dev->of_node; struct snd_soc_dapm_widget *widgets; const char *template, *wname; - int i, j, num_widgets, ret; + int i, j, num_widgets; num_widgets = of_property_count_strings(np, propname); if (num_widgets < 0) { @@ -2644,6 +2978,11 @@ int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, "ASoC: Property '%s' does not exist\n", propname); return -EINVAL; } + if (!num_widgets) { + dev_err(card->dev, "ASoC: Property '%s's length is zero\n", + propname); + return -EINVAL; + } if (num_widgets & 1) { dev_err(card->dev, "ASoC: Property '%s' length is not even\n", propname); @@ -2651,11 +2990,6 @@ int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, } num_widgets /= 2; - if (!num_widgets) { - dev_err(card->dev, "ASoC: Property '%s's length is zero\n", - propname); - return -EINVAL; - } widgets = devm_kcalloc(card->dev, num_widgets, sizeof(*widgets), GFP_KERNEL); @@ -2666,8 +3000,8 @@ int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, } for (i = 0; i < num_widgets; i++) { - ret = of_property_read_string_index(np, propname, - 2 * i, &template); + int ret = of_property_read_string_index(np, propname, + 2 * i, &template); if (ret) { dev_err(card->dev, "ASoC: Property '%s' index %d read error:%d\n", @@ -2710,6 +3044,56 @@ int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, } EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets); +int snd_soc_of_parse_pin_switches(struct snd_soc_card *card, const char *prop) +{ + const unsigned int nb_controls_max = 16; + const char **strings, *control_name; + struct snd_kcontrol_new *controls; + struct device *dev = card->dev; + unsigned int i, nb_controls; + int ret; + + if (!of_property_read_bool(dev->of_node, prop)) + return 0; + + strings = devm_kcalloc(dev, nb_controls_max, + sizeof(*strings), GFP_KERNEL); + if (!strings) + return -ENOMEM; + + ret = of_property_read_string_array(dev->of_node, prop, + strings, nb_controls_max); + if (ret < 0) + return ret; + + nb_controls = (unsigned int)ret; + + controls = devm_kcalloc(dev, nb_controls, + sizeof(*controls), GFP_KERNEL); + if (!controls) + return -ENOMEM; + + for (i = 0; i < nb_controls; i++) { + control_name = devm_kasprintf(dev, GFP_KERNEL, + "%s Switch", strings[i]); + if (!control_name) + return -ENOMEM; + + controls[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; + controls[i].name = control_name; + controls[i].info = snd_soc_dapm_info_pin_switch; + controls[i].get = snd_soc_dapm_get_pin_switch; + controls[i].put = snd_soc_dapm_put_pin_switch; + controls[i].private_value = (unsigned long)strings[i]; + } + + card->controls = controls; + card->num_controls = nb_controls; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_of_parse_pin_switches); + int snd_soc_of_get_slot_mask(struct device_node *np, const char *prop_name, unsigned int *mask) @@ -2765,6 +3149,14 @@ int snd_soc_of_parse_tdm_slot(struct device_node *np, } EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot); +void snd_soc_dlc_use_cpu_as_platform(struct snd_soc_dai_link_component *platforms, + struct snd_soc_dai_link_component *cpus) +{ + platforms->of_node = cpus->of_node; + platforms->dai_args = cpus->dai_args; +} +EXPORT_SYMBOL_GPL(snd_soc_dlc_use_cpu_as_platform); + void snd_soc_of_parse_node_prefix(struct device_node *np, struct snd_soc_codec_conf *codec_conf, struct device_node *of_node, @@ -2790,7 +3182,7 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, struct device_node *np = card->dev->of_node; int num_routes; struct snd_soc_dapm_route *routes; - int i, ret; + int i; num_routes = of_property_count_strings(np, propname); if (num_routes < 0 || num_routes & 1) { @@ -2800,23 +3192,18 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, return -EINVAL; } num_routes /= 2; - if (!num_routes) { - dev_err(card->dev, "ASoC: Property '%s's length is zero\n", - propname); - return -EINVAL; - } routes = devm_kcalloc(card->dev, num_routes, sizeof(*routes), GFP_KERNEL); if (!routes) { dev_err(card->dev, "ASoC: Could not allocate DAPM route table\n"); - return -EINVAL; + return -ENOMEM; } for (i = 0; i < num_routes; i++) { - ret = of_property_read_string_index(np, propname, - 2 * i, &routes[i].sink); + int ret = of_property_read_string_index(np, propname, + 2 * i, &routes[i].sink); if (ret) { dev_err(card->dev, "ASoC: Property '%s' index %d could not be read: %d\n", @@ -2840,12 +3227,87 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, } EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); -unsigned int snd_soc_of_parse_daifmt(struct device_node *np, - const char *prefix, - struct device_node **bitclkmaster, - struct device_node **framemaster) +int snd_soc_of_parse_aux_devs(struct snd_soc_card *card, const char *propname) { - int ret, i; + struct device_node *node = card->dev->of_node; + struct snd_soc_aux_dev *aux; + int num, i; + + num = of_count_phandle_with_args(node, propname, NULL); + if (num == -ENOENT) { + return 0; + } else if (num < 0) { + dev_err(card->dev, "ASOC: Property '%s' could not be read: %d\n", + propname, num); + return num; + } + + aux = devm_kcalloc(card->dev, num, sizeof(*aux), GFP_KERNEL); + if (!aux) + return -ENOMEM; + card->aux_dev = aux; + card->num_aux_devs = num; + + for_each_card_pre_auxs(card, i, aux) { + aux->dlc.of_node = of_parse_phandle(node, propname, i); + if (!aux->dlc.of_node) + return -EINVAL; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_of_parse_aux_devs); + +unsigned int snd_soc_daifmt_clock_provider_flipped(unsigned int dai_fmt) +{ + unsigned int inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK; + + switch (dai_fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { + case SND_SOC_DAIFMT_CBP_CFP: + inv_dai_fmt |= SND_SOC_DAIFMT_CBC_CFC; + break; + case SND_SOC_DAIFMT_CBP_CFC: + inv_dai_fmt |= SND_SOC_DAIFMT_CBC_CFP; + break; + case SND_SOC_DAIFMT_CBC_CFP: + inv_dai_fmt |= SND_SOC_DAIFMT_CBP_CFC; + break; + case SND_SOC_DAIFMT_CBC_CFC: + inv_dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; + break; + } + + return inv_dai_fmt; +} +EXPORT_SYMBOL_GPL(snd_soc_daifmt_clock_provider_flipped); + +unsigned int snd_soc_daifmt_clock_provider_from_bitmap(unsigned int bit_frame) +{ + /* + * bit_frame is return value from + * snd_soc_daifmt_parse_clock_provider_raw() + */ + + /* Codec base */ + switch (bit_frame) { + case 0x11: + return SND_SOC_DAIFMT_CBP_CFP; + case 0x10: + return SND_SOC_DAIFMT_CBP_CFC; + case 0x01: + return SND_SOC_DAIFMT_CBC_CFP; + default: + return SND_SOC_DAIFMT_CBC_CFC; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_daifmt_clock_provider_from_bitmap); + +unsigned int snd_soc_daifmt_parse_format(struct device_node *np, + const char *prefix) +{ + int ret; char prop[128]; unsigned int format = 0; int bit, frame; @@ -2879,6 +3341,8 @@ unsigned int snd_soc_of_parse_daifmt(struct device_node *np, ret = of_property_read_string(np, prop, &str); } if (ret == 0) { + int i; + for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) { if (strcmp(str, of_fmt_table[i].name) == 0) { format |= of_fmt_table[i].val; @@ -2923,10 +3387,24 @@ unsigned int snd_soc_of_parse_daifmt(struct device_node *np, break; } + return format; +} +EXPORT_SYMBOL_GPL(snd_soc_daifmt_parse_format); + +unsigned int snd_soc_daifmt_parse_clock_provider_raw(struct device_node *np, + const char *prefix, + struct device_node **bitclkmaster, + struct device_node **framemaster) +{ + char prop[128]; + unsigned int bit, frame; + + if (!prefix) + prefix = ""; + /* * check "[prefix]bitclock-master" * check "[prefix]frame-master" - * SND_SOC_DAIFMT_MASTER_MASK area */ snprintf(prop, sizeof(prop), "%sbitclock-master", prefix); bit = !!of_get_property(np, prop, NULL); @@ -2938,33 +3416,58 @@ unsigned int snd_soc_of_parse_daifmt(struct device_node *np, if (frame && framemaster) *framemaster = of_parse_phandle(np, prop, 0); - switch ((bit << 4) + frame) { - case 0x11: - format |= SND_SOC_DAIFMT_CBM_CFM; - break; - case 0x10: - format |= SND_SOC_DAIFMT_CBM_CFS; - break; - case 0x01: - format |= SND_SOC_DAIFMT_CBS_CFM; - break; - default: - format |= SND_SOC_DAIFMT_CBS_CFS; - break; - } + /* + * return bitmap. + * It will be parameter of + * snd_soc_daifmt_clock_provider_from_bitmap() + */ + return (bit << 4) + frame; +} +EXPORT_SYMBOL_GPL(snd_soc_daifmt_parse_clock_provider_raw); - return format; +int snd_soc_get_stream_cpu(struct snd_soc_dai_link *dai_link, int stream) +{ + /* + * [Normal] + * + * Playback + * CPU : SNDRV_PCM_STREAM_PLAYBACK + * Codec: SNDRV_PCM_STREAM_PLAYBACK + * + * Capture + * CPU : SNDRV_PCM_STREAM_CAPTURE + * Codec: SNDRV_PCM_STREAM_CAPTURE + */ + if (!dai_link->c2c_params) + return stream; + + /* + * [Codec2Codec] + * + * Playback + * CPU : SNDRV_PCM_STREAM_CAPTURE + * Codec: SNDRV_PCM_STREAM_PLAYBACK + * + * Capture + * CPU : SNDRV_PCM_STREAM_PLAYBACK + * Codec: SNDRV_PCM_STREAM_CAPTURE + */ + if (stream == SNDRV_PCM_STREAM_CAPTURE) + return SNDRV_PCM_STREAM_PLAYBACK; + + return SNDRV_PCM_STREAM_CAPTURE; } -EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt); +EXPORT_SYMBOL_GPL(snd_soc_get_stream_cpu); int snd_soc_get_dai_id(struct device_node *ep) { struct snd_soc_component *component; - struct snd_soc_dai_link_component dlc; + struct snd_soc_dai_link_component dlc = { + .of_node = of_graph_get_port_parent(ep), + }; int ret; - dlc.of_node = of_graph_get_port_parent(ep); - dlc.name = NULL; + /* * For example HDMI case, HDMI has video/sound port, * but ALSA SoC needs sound port number only. @@ -2984,21 +3487,19 @@ int snd_soc_get_dai_id(struct device_node *ep) } EXPORT_SYMBOL_GPL(snd_soc_get_dai_id); -int snd_soc_get_dai_name(struct of_phandle_args *args, - const char **dai_name) +int snd_soc_get_dlc(const struct of_phandle_args *args, struct snd_soc_dai_link_component *dlc) { struct snd_soc_component *pos; - struct device_node *component_of_node; int ret = -EPROBE_DEFER; mutex_lock(&client_mutex); for_each_component(pos) { - component_of_node = soc_component_to_node(pos); + struct device_node *component_of_node = soc_component_to_node(pos); - if (component_of_node != args->np) + if (component_of_node != args->np || !pos->num_dai) continue; - ret = snd_soc_component_of_xlate_dai_name(pos, args, dai_name); + ret = snd_soc_component_of_xlate_dai_name(pos, args, &dlc->dai_name); if (ret == -ENOTSUPP) { struct snd_soc_dai *dai; int id = -1; @@ -3029,9 +3530,7 @@ int snd_soc_get_dai_name(struct of_phandle_args *args, id--; } - *dai_name = dai->driver->name; - if (!*dai_name) - *dai_name = pos->name; + dlc->dai_name = snd_soc_dai_name_get(dai); } else if (ret) { /* * if another error than ENOTSUPP is returned go on and @@ -3044,30 +3543,114 @@ int snd_soc_get_dai_name(struct of_phandle_args *args, break; } + + if (ret == 0) + dlc->of_node = args->np; + mutex_unlock(&client_mutex); return ret; } -EXPORT_SYMBOL_GPL(snd_soc_get_dai_name); +EXPORT_SYMBOL_GPL(snd_soc_get_dlc); -int snd_soc_of_get_dai_name(struct device_node *of_node, - const char **dai_name) +int snd_soc_of_get_dlc(struct device_node *of_node, + struct of_phandle_args *args, + struct snd_soc_dai_link_component *dlc, + int index) { - struct of_phandle_args args; + struct of_phandle_args __args; int ret; + if (!args) + args = &__args; + ret = of_parse_phandle_with_args(of_node, "sound-dai", - "#sound-dai-cells", 0, &args); + "#sound-dai-cells", index, args); if (ret) return ret; - ret = snd_soc_get_dai_name(&args, dai_name); + return snd_soc_get_dlc(args, dlc); +} +EXPORT_SYMBOL_GPL(snd_soc_of_get_dlc); + +int snd_soc_get_dai_name(const struct of_phandle_args *args, + const char **dai_name) +{ + struct snd_soc_dai_link_component dlc; + int ret = snd_soc_get_dlc(args, &dlc); + + if (ret == 0) + *dai_name = dlc.dai_name; + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_get_dai_name); - of_node_put(args.np); +int snd_soc_of_get_dai_name(struct device_node *of_node, + const char **dai_name, int index) +{ + struct snd_soc_dai_link_component dlc; + int ret = snd_soc_of_get_dlc(of_node, NULL, &dlc, index); + + if (ret == 0) + *dai_name = dlc.dai_name; return ret; } EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); +struct snd_soc_dai *snd_soc_get_dai_via_args(const struct of_phandle_args *dai_args) +{ + struct snd_soc_dai *dai; + struct snd_soc_component *component; + + mutex_lock(&client_mutex); + for_each_component(component) { + for_each_component_dais(component, dai) + if (snd_soc_is_match_dai_args(dai->driver->dai_args, dai_args)) + goto found; + } + dai = NULL; +found: + mutex_unlock(&client_mutex); + return dai; +} +EXPORT_SYMBOL_GPL(snd_soc_get_dai_via_args); + +static void __snd_soc_of_put_component(struct snd_soc_dai_link_component *component) +{ + if (component->of_node) { + of_node_put(component->of_node); + component->of_node = NULL; + } +} + +static int __snd_soc_of_get_dai_link_component_alloc( + struct device *dev, struct device_node *of_node, + struct snd_soc_dai_link_component **ret_component, + int *ret_num) +{ + struct snd_soc_dai_link_component *component; + int num; + + /* Count the number of CPUs/CODECs */ + num = of_count_phandle_with_args(of_node, "sound-dai", "#sound-dai-cells"); + if (num <= 0) { + if (num == -ENOENT) + dev_err(dev, "No 'sound-dai' property\n"); + else + dev_err(dev, "Bad phandle in 'sound-dai'\n"); + return num; + } + component = devm_kcalloc(dev, num, sizeof(*component), GFP_KERNEL); + if (!component) + return -ENOMEM; + + *ret_component = component; + *ret_num = num; + + return 0; +} + /* * snd_soc_of_put_dai_link_codecs - Dereference device nodes in the codecs array * @dai_link: DAI link @@ -3079,12 +3662,8 @@ void snd_soc_of_put_dai_link_codecs(struct snd_soc_dai_link *dai_link) struct snd_soc_dai_link_component *component; int index; - for_each_link_codecs(dai_link, index, component) { - if (!component->of_node) - break; - of_node_put(component->of_node); - component->of_node = NULL; - } + for_each_link_codecs(dai_link, index, component) + __snd_soc_of_put_component(component); } EXPORT_SYMBOL_GPL(snd_soc_of_put_dai_link_codecs); @@ -3106,41 +3685,19 @@ int snd_soc_of_get_dai_link_codecs(struct device *dev, struct device_node *of_node, struct snd_soc_dai_link *dai_link) { - struct of_phandle_args args; struct snd_soc_dai_link_component *component; - char *name; - int index, num_codecs, ret; - - /* Count the number of CODECs */ - name = "sound-dai"; - num_codecs = of_count_phandle_with_args(of_node, name, - "#sound-dai-cells"); - if (num_codecs <= 0) { - if (num_codecs == -ENOENT) - dev_err(dev, "No 'sound-dai' property\n"); - else - dev_err(dev, "Bad phandle in 'sound-dai'\n"); - return num_codecs; - } - component = devm_kcalloc(dev, - num_codecs, sizeof(*component), - GFP_KERNEL); - if (!component) - return -ENOMEM; - dai_link->codecs = component; - dai_link->num_codecs = num_codecs; + int index, ret; + + ret = __snd_soc_of_get_dai_link_component_alloc(dev, of_node, + &dai_link->codecs, &dai_link->num_codecs); + if (ret < 0) + return ret; /* Parse the list */ for_each_link_codecs(dai_link, index, component) { - ret = of_parse_phandle_with_args(of_node, name, - "#sound-dai-cells", - index, &args); + ret = snd_soc_of_get_dlc(of_node, NULL, component, index); if (ret) goto err; - component->of_node = args.np; - ret = snd_soc_get_dai_name(&args, &component->dai_name); - if (ret < 0) - goto err; } return 0; err: @@ -3151,12 +3708,80 @@ err: } EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_codecs); +/* + * snd_soc_of_put_dai_link_cpus - Dereference device nodes in the codecs array + * @dai_link: DAI link + * + * Dereference device nodes acquired by snd_soc_of_get_dai_link_cpus(). + */ +void snd_soc_of_put_dai_link_cpus(struct snd_soc_dai_link *dai_link) +{ + struct snd_soc_dai_link_component *component; + int index; + + for_each_link_cpus(dai_link, index, component) + __snd_soc_of_put_component(component); +} +EXPORT_SYMBOL_GPL(snd_soc_of_put_dai_link_cpus); + +/* + * snd_soc_of_get_dai_link_cpus - Parse a list of CPU DAIs in the devicetree + * @dev: Card device + * @of_node: Device node + * @dai_link: DAI link + * + * Is analogous to snd_soc_of_get_dai_link_codecs but parses a list of CPU DAIs + * instead. + * + * Returns 0 for success + */ +int snd_soc_of_get_dai_link_cpus(struct device *dev, + struct device_node *of_node, + struct snd_soc_dai_link *dai_link) +{ + struct snd_soc_dai_link_component *component; + int index, ret; + + /* Count the number of CPUs */ + ret = __snd_soc_of_get_dai_link_component_alloc(dev, of_node, + &dai_link->cpus, &dai_link->num_cpus); + if (ret < 0) + return ret; + + /* Parse the list */ + for_each_link_cpus(dai_link, index, component) { + ret = snd_soc_of_get_dlc(of_node, NULL, component, index); + if (ret) + goto err; + } + return 0; +err: + snd_soc_of_put_dai_link_cpus(dai_link); + dai_link->cpus = NULL; + dai_link->num_cpus = 0; + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_cpus); + static int __init snd_soc_init(void) { + int ret; + snd_soc_debugfs_init(); - snd_soc_util_init(); + ret = snd_soc_util_init(); + if (ret) + goto err_util_init; + + ret = platform_driver_register(&soc_driver); + if (ret) + goto err_register; + return 0; - return platform_driver_register(&soc_driver); +err_register: + snd_soc_util_exit(); +err_util_init: + snd_soc_debugfs_exit(); + return ret; } module_init(snd_soc_init); |