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ASoC: soc-core: add snd_soc_dapm_init() 

It is easy to read code if it is cleanly using paired function/naming,
like start <-> stop, register <-> unregister, etc, etc.
But, current ALSA SoC code is very random, unbalance, not paired, etc.
It is easy to create bug at the such code, and it will be difficult to
debug.

soc-dapm has snd_soc_dapm_free() which cleanups debugfs, widgets, list.
But, there is no paired initialize function.
This patch adds snd_soc_dapm_init() and initilaizing dapm

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87pnkw7lbj.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2019-08-23 09:58:52 +09:00 committed by Mark Brown
parent b614beafa4
commit 95c267dd20
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
3 changed files with 26 additions and 12 deletions
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3
include/sound/soc-dapm.h
View File

@ -416,6 +416,9 @@ int snd_soc_dapm_update_dai(struct snd_pcm_substream *substream,
/* dapm path setup */
int snd_soc_dapm_new_widgets(struct snd_soc_card *card);
void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm);
void snd_soc_dapm_init(struct snd_soc_dapm_context *dapm,
struct snd_soc_card *card,
struct snd_soc_component *component);
int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
const struct snd_soc_dapm_route *route, int num);
int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm,

14
sound/soc/soc-core.c
View File

@ -1023,14 +1023,7 @@ static int soc_probe_component(struct snd_soc_card *card,
soc_init_component_debugfs(component);
INIT_LIST_HEAD(&dapm->list);
dapm->card = card;
dapm->dev = component->dev;
dapm->component = component;
dapm->bias_level = SND_SOC_BIAS_OFF;
dapm->idle_bias_off = !component->driver->idle_bias_on;
dapm->suspend_bias_off = component->driver->suspend_bias_off;
list_add(&dapm->list, &card->dapm_list);
snd_soc_dapm_init(dapm, card, component);
ret = snd_soc_dapm_new_controls(dapm,
component->driver->dapm_widgets,
@ -1937,10 +1930,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
}
mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
card->dapm.bias_level = SND_SOC_BIAS_OFF;
card->dapm.dev = card->dev;
card->dapm.card = card;
list_add(&card->dapm.list, &card->dapm_list);
snd_soc_dapm_init(&card->dapm, card, NULL);
/* check whether any platform is ignore machine FE and using topology */
soc_check_tplg_fes(card);

21
sound/soc/soc-dapm.c
View File

@ -4717,6 +4717,27 @@ void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm)
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_free);
void snd_soc_dapm_init(struct snd_soc_dapm_context *dapm,
struct snd_soc_card *card,
struct snd_soc_component *component)
{
dapm->card = card;
dapm->component = component;
dapm->bias_level = SND_SOC_BIAS_OFF;
if (component) {
dapm->dev = component->dev;
dapm->idle_bias_off = !component->driver->idle_bias_on,
dapm->suspend_bias_off = component->driver->suspend_bias_off;
} else {
dapm->dev = card->dev;
}
INIT_LIST_HEAD(&dapm->list);
list_add(&dapm->list, &card->dapm_list);
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_init);
static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm)
{
struct snd_soc_card *card = dapm->card;