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ASoC: soc-pcm: add soc_pcm_clean() and call it from soc_pcm_open/close()
soc_pcm_open() does rollback when failed (A), but, it is almost same as soc_pcm_close(). static int soc_pcm_open(xxx) { ... if (ret < 0) goto xxx_err; ... return 0; ^ config_err: | ... | rtd_startup_err: (A) ... | component_err: | ... v return ret; } The difference is soc_pcm_close() is for all dai/component/substream, rollback is for succeeded part only. This kind of duplicated code can be a hotbed of bugs, thus, we want to share soc_pcm_close() and rollback. Now, soc_pcm_open/close() are handling 1) snd_soc_dai_startup/shutdown() 2) snd_soc_link_startup/shutdown() 3) snd_soc_component_module_get/put() 4) snd_soc_component_open/close() 5) pm_runtime_put/get() Now, 1) to 5) are handled. This patch adds new soc_pcm_clean() and call it from soc_pcm_open() as rollback, and from soc_pcm_close() as normal close handler. One note here is that it don't need to call snd_soc_runtime_deactivate() when rollback case, because it will be called without snd_soc_runtime_activate(). It also don't need to call snd_soc_dapm_stream_stop() when rollback case. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/r/87ft72bwn4.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
parent
939a5cfb2a
commit
140a4532cd
1 changed files with 30 additions and 39 deletions
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@ -651,12 +651,7 @@ static int soc_pcm_components_close(struct snd_pcm_substream *substream,
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return ret;
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}
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/*
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* Called by ALSA when a PCM substream is closed. Private data can be
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* freed here. The cpu DAI, codec DAI, machine and components are also
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* shutdown.
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*/
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static int soc_pcm_close(struct snd_pcm_substream *substream)
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static int soc_pcm_clean(struct snd_pcm_substream *substream, int rollback)
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{
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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struct snd_soc_component *component;
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@ -665,20 +660,22 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
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mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
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if (!rollback)
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snd_soc_runtime_deactivate(rtd, substream->stream);
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for_each_rtd_dais(rtd, i, dai)
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snd_soc_dai_shutdown(dai, substream, 0);
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snd_soc_dai_shutdown(dai, substream, rollback);
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snd_soc_link_shutdown(substream, 0);
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snd_soc_link_shutdown(substream, rollback);
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soc_pcm_components_close(substream, 0);
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soc_pcm_components_close(substream, rollback);
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if (!rollback)
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snd_soc_dapm_stream_stop(rtd, substream->stream);
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mutex_unlock(&rtd->card->pcm_mutex);
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snd_soc_pcm_component_pm_runtime_put(rtd, substream, 0);
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snd_soc_pcm_component_pm_runtime_put(rtd, substream, rollback);
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for_each_rtd_components(rtd, i, component)
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if (!snd_soc_component_active(component))
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@ -687,6 +684,16 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
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return 0;
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}
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/*
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* Called by ALSA when a PCM substream is closed. Private data can be
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* freed here. The cpu DAI, codec DAI, machine and components are also
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* shutdown.
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*/
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static int soc_pcm_close(struct snd_pcm_substream *substream)
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{
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return soc_pcm_clean(substream, 0);
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}
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/*
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* Called by ALSA when a PCM substream is opened, the runtime->hw record is
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* then initialized and any private data can be allocated. This also calls
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@ -707,17 +714,17 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
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ret = snd_soc_pcm_component_pm_runtime_get(rtd, substream);
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if (ret < 0)
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goto pm_err;
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goto err;
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mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
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ret = soc_pcm_components_open(substream);
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if (ret < 0)
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goto component_err;
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goto err;
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ret = snd_soc_link_startup(substream);
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if (ret < 0)
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goto rtd_startup_err;
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goto err;
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/* startup the audio subsystem */
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for_each_rtd_dais(rtd, i, dai) {
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@ -726,7 +733,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
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dev_err(dai->dev,
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"ASoC: can't open DAI %s: %d\n",
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dai->name, ret);
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goto config_err;
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goto err;
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}
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
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@ -755,18 +762,18 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
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if (!runtime->hw.rates) {
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printk(KERN_ERR "ASoC: %s <-> %s No matching rates\n",
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codec_dai_name, cpu_dai_name);
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goto config_err;
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goto err;
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}
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if (!runtime->hw.formats) {
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printk(KERN_ERR "ASoC: %s <-> %s No matching formats\n",
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codec_dai_name, cpu_dai_name);
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goto config_err;
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goto err;
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}
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if (!runtime->hw.channels_min || !runtime->hw.channels_max ||
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runtime->hw.channels_min > runtime->hw.channels_max) {
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printk(KERN_ERR "ASoC: %s <-> %s No matching channels\n",
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codec_dai_name, cpu_dai_name);
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goto config_err;
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goto err;
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}
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soc_pcm_apply_msb(substream);
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@ -776,7 +783,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
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if (snd_soc_dai_active(dai)) {
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ret = soc_pcm_apply_symmetry(substream, dai);
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if (ret != 0)
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goto config_err;
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goto err;
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}
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}
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@ -787,29 +794,13 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
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runtime->hw.channels_max);
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pr_debug("ASoC: min rate %d max rate %d\n", runtime->hw.rate_min,
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runtime->hw.rate_max);
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dynamic:
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snd_soc_runtime_activate(rtd, substream->stream);
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err:
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mutex_unlock(&rtd->card->pcm_mutex);
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return 0;
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config_err:
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for_each_rtd_dais_rollback(rtd, i, dai)
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snd_soc_dai_shutdown(dai, substream, 1);
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snd_soc_link_shutdown(substream, 1);
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rtd_startup_err:
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soc_pcm_components_close(substream, 1);
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component_err:
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mutex_unlock(&rtd->card->pcm_mutex);
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pm_err:
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snd_soc_pcm_component_pm_runtime_put(rtd, substream, 1);
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for_each_rtd_components(rtd, i, component)
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if (!snd_soc_component_active(component))
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pinctrl_pm_select_sleep_state(component->dev);
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if (ret < 0)
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soc_pcm_clean(substream, 1);
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return ret;
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}
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