From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
ALSA SoC need to care pinctrl_pm_select_xxx(). It is called at soc-core and soc-pcm. soc-pcm is controlling it for activate DAI. soc-core is controlling it for whole system (= suspend/resume/probe/poweroff).
If we focus to soc-core side, it need to care about BIAS level. Then, snd_soc_suspend() only is controlling it by Component base (a). Other functions are DAI base (b).
(a) pinctrl_pm_select_xxx(component->dev, xxx); (b) pinctrl_pm_select_xxx(dai->dev, xxx);
Because of these unbalance, the code is confusable. Here, dai->dev and component->dev are same pointer. Thus, we can replace it component base.
One note here is that it cared DAI (= CPU/Codec) pin before this patch, after this patch, it cares Component (= CPU/Codec/Platform) pin.
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- sound/soc/soc-core.c | 46 +++++++++++----------------------------------- sound/soc/soc-pcm.c | 23 ++++++++--------------- 2 files changed, 19 insertions(+), 50 deletions(-)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 9b94a5a..b86d5c5 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -727,25 +727,16 @@ int snd_soc_resume(struct device *dev) struct snd_soc_card *card = dev_get_drvdata(dev); bool bus_control = false; struct snd_soc_pcm_runtime *rtd; - struct snd_soc_dai *codec_dai; - int i; + struct snd_soc_component *component;
/* If the card is not initialized yet there is nothing to do */ if (!card->instantiated) return 0;
/* activate pins from sleep state */ - for_each_card_rtds(card, rtd) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - - if (cpu_dai->active) - pinctrl_pm_select_default_state(cpu_dai->dev); - - for_each_rtd_codec_dai(rtd, i, codec_dai) { - if (codec_dai->active) - pinctrl_pm_select_default_state(codec_dai->dev); - } - } + for_each_card_components(card, component) + if (component->active) + pinctrl_pm_select_default_state(component->dev);
/* * DAIs that also act as the control bus master might have other drivers @@ -1883,6 +1874,7 @@ static void snd_soc_unbind_card(struct snd_soc_card *card, bool unregister) 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, card_probed = 0;
@@ -2034,17 +2026,9 @@ static int snd_soc_bind_card(struct snd_soc_card *card) snd_soc_dapm_sync(&card->dapm);
/* deactivate pins to sleep state */ - for_each_card_rtds(card, rtd) { - struct snd_soc_dai *dai; - - for_each_rtd_codec_dai(rtd, i, dai) { - if (!dai->active) - pinctrl_pm_select_sleep_state(dai->dev); - } - - if (!rtd->cpu_dai->active) - pinctrl_pm_select_sleep_state(rtd->cpu_dai->dev); - } + for_each_card_components(card, component) + if (!component->active) + pinctrl_pm_select_sleep_state(component->dev);
probe_end: if (ret < 0) @@ -2090,7 +2074,7 @@ static int soc_remove(struct platform_device *pdev) int snd_soc_poweroff(struct device *dev) { struct snd_soc_card *card = dev_get_drvdata(dev); - struct snd_soc_pcm_runtime *rtd; + struct snd_soc_component *component;
if (!card->instantiated) return 0; @@ -2104,16 +2088,8 @@ int snd_soc_poweroff(struct device *dev) snd_soc_dapm_shutdown(card);
/* deactivate pins to sleep state */ - for_each_card_rtds(card, rtd) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct snd_soc_dai *codec_dai; - int i; - - pinctrl_pm_select_sleep_state(cpu_dai->dev); - for_each_rtd_codec_dai(rtd, i, codec_dai) { - pinctrl_pm_select_sleep_state(codec_dai->dev); - } - } + for_each_card_components(card, component) + pinctrl_pm_select_sleep_state(component->dev);
return 0; } diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 9c6c753..68f7205 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -487,9 +487,8 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) const char *codec_dai_name = "multicodec"; int i, ret = 0;
- pinctrl_pm_select_default_state(cpu_dai->dev); - for_each_rtd_codec_dai(rtd, i, codec_dai) - pinctrl_pm_select_default_state(codec_dai->dev); + for_each_rtd_components(rtd, i, component) + pinctrl_pm_select_default_state(component->dev);
for_each_rtd_components(rtd, i, component) pm_runtime_get_sync(component->dev); @@ -618,12 +617,9 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) pm_runtime_put_autosuspend(component->dev); }
- for_each_rtd_codec_dai(rtd, i, codec_dai) { - if (!codec_dai->active) - pinctrl_pm_select_sleep_state(codec_dai->dev); - } - if (!cpu_dai->active) - pinctrl_pm_select_sleep_state(cpu_dai->dev); + for_each_rtd_components(rtd, i, component) + if (!component->active) + pinctrl_pm_select_sleep_state(component->dev);
return ret; } @@ -728,12 +724,9 @@ static int soc_pcm_close(struct snd_pcm_substream *substream) pm_runtime_put_autosuspend(component->dev); }
- for_each_rtd_codec_dai(rtd, i, codec_dai) { - if (!codec_dai->active) - pinctrl_pm_select_sleep_state(codec_dai->dev); - } - if (!cpu_dai->active) - pinctrl_pm_select_sleep_state(cpu_dai->dev); + for_each_rtd_components(rtd, i, component) + if (!component->active) + pinctrl_pm_select_sleep_state(component->dev);
return 0; }