Merge branch 'topic/pcm' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-core

12 files changed, 143 insertions, 94 deletions

diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index 71f27c40319..8763e539c48 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -270,6 +270,7 @@ struct snd_soc_dai {
 	/* parent platform/codec */
 	struct snd_soc_platform *platform;
 	struct snd_soc_codec *codec;
+	struct snd_soc_component *component;
 
 	struct snd_soc_card *card;
 
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 9a001472b96..b14acd8228a 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -413,6 +413,10 @@ struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
 struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
 		const char *dai_link);
 
+bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd);
+void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream);
+void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream);
+
 /* Utility functions to get clock rates from various things */
 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
@@ -656,6 +660,11 @@ struct snd_soc_component {
 	const char *name;
 	int id;
 	struct device *dev;
+
+	unsigned int active;
+
+	unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */
+
 	struct list_head list;
 
 	struct snd_soc_dai_driver *dai_drv;
@@ -683,7 +692,6 @@ struct snd_soc_codec {
 
 	/* runtime */
 	struct snd_ac97 *ac97;  /* for ad-hoc ac97 devices */
-	unsigned int active;
 	unsigned int cache_bypass:1; /* Suppress access to the cache */
 	unsigned int suspended:1; /* Codec is in suspend PM state */
 	unsigned int probed:1; /* Codec has been probed */
@@ -709,7 +717,6 @@ struct snd_soc_codec {
 
 	/* dapm */
 	struct snd_soc_dapm_context dapm;
-	unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */
 
 #ifdef CONFIG_DEBUG_FS
 	struct dentry *debugfs_codec_root;
@@ -1168,6 +1175,17 @@ static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc)
 	return 1;
 }
 
+static inline bool snd_soc_component_is_active(
+	struct snd_soc_component *component)
+{
+	return component->active != 0;
+}
+
+static inline bool snd_soc_codec_is_active(struct snd_soc_codec *codec)
+{
+	return snd_soc_component_is_active(&codec->component);
+}
+
 int snd_soc_util_init(void);
 void snd_soc_util_exit(void);
 
diff --git a/sound/soc/codecs/adav80x.c b/sound/soc/codecs/adav80x.c
index f78b27a7c46..d50cf5b29a2 100644
--- a/sound/soc/codecs/adav80x.c
+++ b/sound/soc/codecs/adav80x.c
@@ -722,7 +722,7 @@ static int adav80x_dai_startup(struct snd_pcm_substream *substream,
 	struct snd_soc_codec *codec = dai->codec;
 	struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
 
-	if (!codec->active || !adav80x->rate)
+	if (!snd_soc_codec_is_active(codec) || !adav80x->rate)
 		return 0;
 
 	return snd_pcm_hw_constraint_minmax(substream->runtime,
@@ -735,7 +735,7 @@ static void adav80x_dai_shutdown(struct snd_pcm_substream *substream,
 	struct snd_soc_codec *codec = dai->codec;
 	struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
 
-	if (!codec->active)
+	if (!snd_soc_codec_is_active(codec))
 		adav80x->rate = 0;
 }
 
diff --git a/sound/soc/codecs/tlv320aic23.c b/sound/soc/codecs/tlv320aic23.c
index 5d430cc56f5..458a6aed203 100644
--- a/sound/soc/codecs/tlv320aic23.c
+++ b/sound/soc/codecs/tlv320aic23.c
@@ -400,7 +400,7 @@ static void tlv320aic23_shutdown(struct snd_pcm_substream *substream,
 	struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec);
 
 	/* deactivate */
-	if (!codec->active) {
+	if (!snd_soc_codec_is_active(codec)) {
 		udelay(50);
 		snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0);
 	}
diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c
index 4f358393d6d..35b2d244e42 100644
--- a/sound/soc/codecs/tlv320dac33.c
+++ b/sound/soc/codecs/tlv320dac33.c
@@ -461,7 +461,7 @@ static int dac33_set_fifo_mode(struct snd_kcontrol *kcontrol,
 	if (dac33->fifo_mode == ucontrol->value.integer.value[0])
 		return 0;
 	/* Do not allow changes while stream is running*/
-	if (codec->active)
+	if (snd_soc_codec_is_active(codec))
 		return -EPERM;
 
 	if (ucontrol->value.integer.value[0] < 0 ||
diff --git a/sound/soc/codecs/uda1380.c b/sound/soc/codecs/uda1380.c
index 726df6d43c2..8e3940dcff2 100644
--- a/sound/soc/codecs/uda1380.c
+++ b/sound/soc/codecs/uda1380.c
@@ -108,7 +108,7 @@ static int uda1380_write(struct snd_soc_codec *codec, unsigned int reg,
 	/* the interpolator & decimator regs must only be written when the
 	 * codec DAI is active.
 	 */
-	if (!codec->active && (reg >= UDA1380_MVOL))
+	if (!snd_soc_codec_is_active(codec) && (reg >= UDA1380_MVOL))
 		return 0;
 	pr_debug("uda1380: hw write %x val %x\n", reg, value);
 	if (codec->hw_write(codec->control_data, data, 3) == 3) {
diff --git a/sound/soc/codecs/wl1273.c b/sound/soc/codecs/wl1273.c
index b7ab2ef567c..47e96ff3006 100644
--- a/sound/soc/codecs/wl1273.c
+++ b/sound/soc/codecs/wl1273.c
@@ -197,7 +197,7 @@ static int snd_wl1273_set_audio_route(struct snd_kcontrol *kcontrol,
 		return 0;
 
 	/* Do not allow changes while stream is running */
-	if (codec->active)
+	if (snd_soc_codec_is_active(codec))
 		return -EPERM;
 
 	if (ucontrol->value.integer.value[0] < 0 ||
diff --git a/sound/soc/codecs/wm8711.c b/sound/soc/codecs/wm8711.c
index d99f948c513..6efcc40a7cb 100644
--- a/sound/soc/codecs/wm8711.c
+++ b/sound/soc/codecs/wm8711.c
@@ -201,7 +201,7 @@ static void wm8711_shutdown(struct snd_pcm_substream *substream,
 	struct snd_soc_codec *codec = dai->codec;
 
 	/* deactivate */
-	if (!codec->active) {
+	if (!snd_soc_codec_is_active(codec)) {
 		udelay(50);
 		snd_soc_write(codec, WM8711_ACTIVE, 0x0);
 	}
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index be85da93a26..5cf4bebc5d8 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -251,7 +251,7 @@ static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
 	if (wm8753->dai_func == ucontrol->value.integer.value[0])
 		return 0;
 
-	if (codec->active)
+	if (snd_soc_codec_is_active(codec))
 		return -EBUSY;
 
 	ioctl = snd_soc_read(codec, WM8753_IOCTL);
@@ -1314,7 +1314,7 @@ static int wm8753_mute(struct snd_soc_dai *dai, int mute)
 	/* the digital mute covers the HiFi and Voice DAC's on the WM8753.
 	 * make sure we check if they are not both active when we mute */
 	if (mute && wm8753->dai_func == 1) {
-		if (!codec->active)
+		if (!snd_soc_codec_is_active(codec))
 			snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
 	} else {
 		if (mute)
diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
index 5e9690c85d8..91083e6a6b3 100644
--- a/sound/soc/soc-compress.c
+++ b/sound/soc/soc-compress.c
@@ -30,8 +30,6 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
 	struct snd_soc_platform *platform = rtd->platform;
-	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	int ret = 0;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
@@ -52,17 +50,7 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
 		}
 	}
 
-	if (cstream->direction == SND_COMPRESS_PLAYBACK) {
-		cpu_dai->playback_active++;
-		codec_dai->playback_active++;
-	} else {
-		cpu_dai->capture_active++;
-		codec_dai->capture_active++;
-	}
-
-	cpu_dai->active++;
-	codec_dai->active++;
-	rtd->codec->active++;
+	snd_soc_runtime_activate(rtd, cstream->direction);
 
 	mutex_unlock(&rtd->pcm_mutex);
 
@@ -81,8 +69,6 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 	struct snd_soc_pcm_runtime *fe = cstream->private_data;
 	struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream;
 	struct snd_soc_platform *platform = fe->platform;
-	struct snd_soc_dai *cpu_dai = fe->cpu_dai;
-	struct snd_soc_dai *codec_dai = fe->codec_dai;
 	struct snd_soc_dpcm *dpcm;
 	struct snd_soc_dapm_widget_list *list;
 	int stream;
@@ -140,17 +126,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 	fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN;
 	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
 
-	if (cstream->direction == SND_COMPRESS_PLAYBACK) {
-		cpu_dai->playback_active++;
-		codec_dai->playback_active++;
-	} else {
-		cpu_dai->capture_active++;
-		codec_dai->capture_active++;
-	}
-
-	cpu_dai->active++;
-	codec_dai->active++;
-	fe->codec->active++;
+	snd_soc_runtime_activate(fe, stream);
 
 	mutex_unlock(&fe->card->mutex);
 
@@ -202,23 +178,18 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
 	struct snd_soc_platform *platform = rtd->platform;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
-	struct snd_soc_codec *codec = rtd->codec;
+	int stream;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
-	if (cstream->direction == SND_COMPRESS_PLAYBACK) {
-		cpu_dai->playback_active--;
-		codec_dai->playback_active--;
-	} else {
-		cpu_dai->capture_active--;
-		codec_dai->capture_active--;
-	}
+	if (cstream->direction == SND_COMPRESS_PLAYBACK)
+		stream = SNDRV_PCM_STREAM_PLAYBACK;
+	else
+		stream = SNDRV_PCM_STREAM_CAPTURE;
 
-	snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction);
+	snd_soc_runtime_deactivate(rtd, stream);
 
-	cpu_dai->active--;
-	codec_dai->active--;
-	codec->active--;
+	snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction);
 
 	if (!cpu_dai->active)
 		cpu_dai->rate = 0;
@@ -235,8 +206,7 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
 	cpu_dai->runtime = NULL;
 
 	if (cstream->direction == SND_COMPRESS_PLAYBACK) {
-		if (!rtd->pmdown_time || codec->ignore_pmdown_time ||
-		    rtd->dai_link->ignore_pmdown_time) {
+		if (snd_soc_runtime_ignore_pmdown_time(rtd)) {
 			snd_soc_dapm_stream_event(rtd,
 					SNDRV_PCM_STREAM_PLAYBACK,
 					SND_SOC_DAPM_STREAM_STOP);
@@ -261,26 +231,17 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)
 {
 	struct snd_soc_pcm_runtime *fe = cstream->private_data;
 	struct snd_soc_platform *platform = fe->platform;
-	struct snd_soc_dai *cpu_dai = fe->cpu_dai;
-	struct snd_soc_dai *codec_dai = fe->codec_dai;
 	struct snd_soc_dpcm *dpcm;
 	int stream, ret;
 
 	mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);
 
-	if (cstream->direction == SND_COMPRESS_PLAYBACK) {
+	if (cstream->direction == SND_COMPRESS_PLAYBACK)
 		stream = SNDRV_PCM_STREAM_PLAYBACK;
-		cpu_dai->playback_active--;
-		codec_dai->playback_active--;
-	} else {
+	else
 		stream = SNDRV_PCM_STREAM_CAPTURE;
-		cpu_dai->capture_active--;
-		codec_dai->capture_active--;
-	}
 
-	cpu_dai->active--;
-	codec_dai->active--;
-	fe->codec->active--;
+	snd_soc_runtime_deactivate(fe, stream);
 
 	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
 
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 9d25c2e0fb9..255eca9afc9 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3908,11 +3908,13 @@ static inline char *fmt_multiple_name(struct device *dev,
 /**
  * snd_soc_register_dai - Register a DAI with the ASoC core
  *
- * @dai: DAI to register
+ * @component: The component the DAIs are registered for
+ * @dai_drv: DAI driver to use for the DAIs
  */
-static int snd_soc_register_dai(struct device *dev,
+static int snd_soc_register_dai(struct snd_soc_component *component,
 		struct snd_soc_dai_driver *dai_drv)
 {
+	struct device *dev = component->dev;
 	struct snd_soc_codec *codec;
 	struct snd_soc_dai *dai;
 
@@ -3929,6 +3931,7 @@ static int snd_soc_register_dai(struct device *dev,
 		return -ENOMEM;
 	}
 
+	dai->component = component;
 	dai->dev = dev;
 	dai->driver = dai_drv;
 	dai->dapm.dev = dev;
@@ -3986,12 +3989,14 @@ found:
 /**
  * snd_soc_register_dais - Register multiple DAIs with the ASoC core
  *
- * @dai: Array of DAIs to register
+ * @component: The component the DAIs are registered for
+ * @dai_drv: DAI driver to use for the DAIs
  * @count: Number of DAIs
  */
-static int snd_soc_register_dais(struct device *dev,
+static int snd_soc_register_dais(struct snd_soc_component *component,
 		struct snd_soc_dai_driver *dai_drv, size_t count)
 {
+	struct device *dev = component->dev;
 	struct snd_soc_codec *codec;
 	struct snd_soc_dai *dai;
 	int i, ret = 0;
@@ -4014,6 +4019,7 @@ static int snd_soc_register_dais(struct device *dev,
 			goto err;
 		}
 
+		dai->component = component;
 		dai->dev = dev;
 		dai->driver = &dai_drv[i];
 		if (dai->driver->id)
@@ -4110,9 +4116,9 @@ __snd_soc_register_component(struct device *dev,
 	 * since it had been used snd_soc_register_dais(),
 	 */
 	if ((1 == num_dai) && allow_single_dai)
-		ret = snd_soc_register_dai(dev, dai_drv);
+		ret = snd_soc_register_dai(cmpnt, dai_drv);
 	else
-		ret = snd_soc_register_dais(dev, dai_drv, num_dai);
+		ret = snd_soc_register_dais(cmpnt, dai_drv, num_dai);
 	if (ret < 0) {
 		dev_err(dev, "ASoC: Failed to regster DAIs: %d\n", ret);
 		goto error_component_name;
@@ -4145,6 +4151,8 @@ int snd_soc_register_component(struct device *dev,
 		return -ENOMEM;
 	}
 
+	cmpnt->ignore_pmdown_time = true;
+
 	return __snd_soc_register_component(dev, cmpnt, cmpnt_drv,
 					    dai_drv, num_dai, true);
 }
@@ -4343,7 +4351,7 @@ int snd_soc_register_codec(struct device *dev,
 	codec->volatile_register = codec_drv->volatile_register;
 	codec->readable_register = codec_drv->readable_register;
 	codec->writable_register = codec_drv->writable_register;
-	codec->ignore_pmdown_time = codec_drv->ignore_pmdown_time;
+	codec->component.ignore_pmdown_time = codec_drv->ignore_pmdown_time;
 	codec->dapm.bias_level = SND_SOC_BIAS_OFF;
 	codec->dapm.dev = dev;
 	codec->dapm.codec = codec;
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 47e1ce771e6..2cedf09f6d9 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -35,6 +35,86 @@
 #define DPCM_MAX_BE_USERS	8
 
 /**
+ * snd_soc_runtime_activate() - Increment active count for PCM runtime components
+ * @rtd: ASoC PCM runtime that is activated
+ * @stream: Direction of the PCM stream
+ *
+ * Increments the active count for all the DAIs and components attached to a PCM
+ * runtime. Should typically be called when a stream is opened.
+ *
+ * Must be called with the rtd->pcm_mutex being held
+ */
+void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream)
+{
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+
+	lockdep_assert_held(&rtd->pcm_mutex);
+
+	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		cpu_dai->playback_active++;
+		codec_dai->playback_active++;
+	} else {
+		cpu_dai->capture_active++;
+		codec_dai->capture_active++;
+	}
+
+	cpu_dai->active++;
+	codec_dai->active++;
+	cpu_dai->component->active++;
+	codec_dai->component->active++;
+}
+
+/**
+ * snd_soc_runtime_deactivate() - Decrement active count for PCM runtime components
+ * @rtd: ASoC PCM runtime that is deactivated
+ * @stream: Direction of the PCM stream
+ *
+ * Decrements the active count for all the DAIs and components attached to a PCM
+ * runtime. Should typically be called when a stream is closed.
+ *
+ * Must be called with the rtd->pcm_mutex being held
+ */
+void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream)
+{
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+
+	lockdep_assert_held(&rtd->pcm_mutex);
+
+	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		cpu_dai->playback_active--;
+		codec_dai->playback_active--;
+	} else {
+		cpu_dai->capture_active--;
+		codec_dai->capture_active--;
+	}
+
+	cpu_dai->active--;
+	codec_dai->active--;
+	cpu_dai->component->active--;
+	codec_dai->component->active--;
+}
+
+/**
+ * snd_soc_runtime_ignore_pmdown_time() - Check whether to ignore the power down delay
+ * @rtd: The ASoC PCM runtime that should be checked.
+ *
+ * This function checks whether the power down delay should be ignored for a
+ * specific PCM runtime. Returns true if the delay is 0, if it the DAI link has
+ * been configured to ignore the delay, or if none of the components benefits
+ * from having the delay.
+ */
+bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd)
+{
+	if (!rtd->pmdown_time || rtd->dai_link->ignore_pmdown_time)
+		return true;
+
+	return rtd->cpu_dai->component->ignore_pmdown_time &&
+			rtd->codec_dai->component->ignore_pmdown_time;
+}
+
+/**
  * snd_soc_set_runtime_hwparams - set the runtime hardware parameters
  * @substream: the pcm substream
  * @hw: the hardware parameters
@@ -378,16 +458,9 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 		 runtime->hw.rate_max);
 
 dynamic:
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		cpu_dai->playback_active++;
-		codec_dai->playback_active++;
-	} else {
-		cpu_dai->capture_active++;
-		codec_dai->capture_active++;
-	}
-	cpu_dai->active++;
-	codec_dai->active++;
-	rtd->codec->active++;
+
+	snd_soc_runtime_activate(rtd, substream->stream);
+
 	mutex_unlock(&rtd->pcm_mutex);
 	return 0;
 
@@ -459,21 +532,10 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
 	struct snd_soc_platform *platform = rtd->platform;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
-	struct snd_soc_codec *codec = rtd->codec;
 
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		cpu_dai->playback_active--;
-		codec_dai->playback_active--;
-	} else {
-		cpu_dai->capture_active--;
-		codec_dai->capture_active--;
-	}
-
-	cpu_dai->active--;
-	codec_dai->active--;
-	codec->active--;
+	snd_soc_runtime_deactivate(rtd, substream->stream);
 
 	/* clear the corresponding DAIs rate when inactive */
 	if (!cpu_dai->active)
@@ -496,8 +558,7 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
 	cpu_dai->runtime = NULL;
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		if (!rtd->pmdown_time || codec->ignore_pmdown_time ||
-		    rtd->dai_link->ignore_pmdown_time) {
+		if (snd_soc_runtime_ignore_pmdown_time(rtd)) {
 			/* powered down playback stream now */
 			snd_soc_dapm_stream_event(rtd,
 						  SNDRV_PCM_STREAM_PLAYBACK,