[PATCH 3/3] ASoC: add snd_soc_card_mutex_lock/unlock()

ASoC need to use card->mutex with _INIT or _RUNTIME, but there is no helper function for it.

This patch adds its helper function and use it.

Because people might misunderstand that _init() is mutex initialization, this patch renames _INIT to _ROOT and adds new snd_soc_card_mutex_lock_root() for it.

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- include/sound/soc-card.h | 17 ++++++++++++++++- sound/soc/soc-compress.c | 18 +++++++++--------- sound/soc/soc-core.c | 4 ++-- 3 files changed, 27 insertions(+), 12 deletions(-)

diff --git a/include/sound/soc-card.h b/include/sound/soc-card.h index 9d31a5c0db33..fc94dfb0021f 100644 --- a/include/sound/soc-card.h +++ b/include/sound/soc-card.h @@ -9,10 +9,25 @@ #define __SOC_CARD_H

enum snd_soc_card_subclass { - SND_SOC_CARD_CLASS_INIT = 0, + SND_SOC_CARD_CLASS_ROOT = 0, SND_SOC_CARD_CLASS_RUNTIME = 1, };

+static inline void snd_soc_card_mutex_lock_root(struct snd_soc_card *card) +{ + mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_ROOT); +} + +static inline void snd_soc_card_mutex_lock(struct snd_soc_card *card) +{ + mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_RUNTIME); +} + +static inline void snd_soc_card_mutex_unlock(struct snd_soc_card *card) +{ + mutex_unlock(&card->mutex); +} + struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, const char *name); int snd_soc_card_jack_new(struct snd_soc_card *card, const char *id, int type, diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index 661e9d70994f..d8715db5e415 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -140,7 +140,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */ int ret;

- mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); + snd_soc_card_mutex_lock(fe->card);

ret = dpcm_path_get(fe, stream, &list); if (ret < 0) @@ -184,7 +184,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) snd_soc_runtime_activate(fe, stream); snd_soc_dpcm_mutex_unlock(fe);

- mutex_unlock(&fe->card->mutex); + snd_soc_card_mutex_unlock(fe->card);

return 0;

@@ -196,7 +196,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) dpcm_path_put(&list); be_err: fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; - mutex_unlock(&fe->card->mutex); + snd_soc_card_mutex_unlock(fe->card); return ret; }

@@ -207,7 +207,7 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream) struct snd_soc_dpcm *dpcm; int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */

- mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); + snd_soc_card_mutex_lock(fe->card);

snd_soc_dpcm_mutex_lock(fe); snd_soc_runtime_deactivate(fe, stream); @@ -237,7 +237,7 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)

snd_soc_dai_compr_shutdown(cpu_dai, cstream, 0);

- mutex_unlock(&fe->card->mutex); + snd_soc_card_mutex_unlock(fe->card); return 0; }

@@ -284,7 +284,7 @@ static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd) cmd == SND_COMPR_TRIGGER_DRAIN) return snd_soc_component_compr_trigger(cstream, cmd);

- mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); + snd_soc_card_mutex_lock(fe->card);

ret = snd_soc_dai_compr_trigger(cpu_dai, cstream, cmd); if (ret < 0) @@ -315,7 +315,7 @@ static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd)

out: fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; - mutex_unlock(&fe->card->mutex); + snd_soc_card_mutex_unlock(fe->card); return ret; }

@@ -373,7 +373,7 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */ int ret;

- mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); + snd_soc_card_mutex_lock(fe->card);

/* * Create an empty hw_params for the BE as the machine driver must @@ -411,7 +411,7 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream,

out: fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; - mutex_unlock(&fe->card->mutex); + snd_soc_card_mutex_unlock(fe->card); return ret; }

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 4594505cdae2..b48efc3a08d2 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1938,7 +1938,7 @@ static int snd_soc_bind_card(struct snd_soc_card *card) 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_dapm_init(&card->dapm, card, NULL);

@@ -2093,7 +2093,7 @@ static int snd_soc_bind_card(struct snd_soc_card *card) if (ret < 0) soc_cleanup_card_resources(card);

- mutex_unlock(&card->mutex); + snd_soc_card_mutex_unlock(card); mutex_unlock(&client_mutex);

return ret;