Merge branch 'next' (accumulated 3.16 merge window patches) into master

Now that 3.15 is released, this merges the 'next' branch into 'master',
bringing us to the normal situation where my 'master' branch is the
merge window.

* accumulated work in next: (6809 commits)
  ufs: sb mutex merge + mutex_destroy
  powerpc: update comments for generic idle conversion
  cris: update comments for generic idle conversion
  idle: remove cpu_idle() forward declarations
  nbd: zero from and len fields in NBD_CMD_DISCONNECT.
  mm: convert some level-less printks to pr_*
  MAINTAINERS: adi-buildroot-devel is moderated
  MAINTAINERS: add linux-api for review of API/ABI changes
  mm/kmemleak-test.c: use pr_fmt for logging
  fs/dlm/debug_fs.c: replace seq_printf by seq_puts
  fs/dlm/lockspace.c: convert simple_str to kstr
  fs/dlm/config.c: convert simple_str to kstr
  mm: mark remap_file_pages() syscall as deprecated
  mm: memcontrol: remove unnecessary memcg argument from soft limit functions
  mm: memcontrol: clean up memcg zoneinfo lookup
  mm/memblock.c: call kmemleak directly from memblock_(alloc|free)
  mm/mempool.c: update the kmemleak stack trace for mempool allocations
  lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations
  mm: introduce kmemleak_update_trace()
  mm/kmemleak.c: use %u to print ->checksum
  ...

1 files changed, 69 insertions, 190 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 6d6ceee447d5..a74b9bf23d9f 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -378,86 +378,24 @@ static void dapm_reset(struct snd_soc_card *card)
 static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg,
 	unsigned int *value)
 {
-	if (w->codec) {
-		*value = snd_soc_read(w->codec, reg);
-		return 0;
-	} else if (w->platform) {
-		*value = snd_soc_platform_read(w->platform, reg);
-		return 0;
-	}
-
-	dev_err(w->dapm->dev, "ASoC: no valid widget read method\n");
-	return -1;
-}
-
-static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg,
-	unsigned int val)
-{
-	if (w->codec)
-		return snd_soc_write(w->codec, reg, val);
-	else if (w->platform)
-		return snd_soc_platform_write(w->platform, reg, val);
-
-	dev_err(w->dapm->dev, "ASoC: no valid widget write method\n");
-	return -1;
-}
-
-static inline void soc_widget_lock(struct snd_soc_dapm_widget *w)
-{
-	if (w->codec && !w->codec->using_regmap)
-		mutex_lock(&w->codec->mutex);
-	else if (w->platform)
-		mutex_lock(&w->platform->mutex);
+	if (!w->dapm->component)
+		return -EIO;
+	return snd_soc_component_read(w->dapm->component, reg, value);
 }
 
-static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w)
+static int soc_widget_update_bits(struct snd_soc_dapm_widget *w,
+	int reg, unsigned int mask, unsigned int value)
 {
-	if (w->codec && !w->codec->using_regmap)
-		mutex_unlock(&w->codec->mutex);
-	else if (w->platform)
-		mutex_unlock(&w->platform->mutex);
+	if (!w->dapm->component)
+		return -EIO;
+	return snd_soc_component_update_bits_async(w->dapm->component, reg,
+		mask, value);
 }
 
 static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm)
 {
-	if (dapm->codec && dapm->codec->using_regmap)
-		regmap_async_complete(dapm->codec->control_data);
-}
-
-static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w,
-	unsigned short reg, unsigned int mask, unsigned int value)
-{
-	bool change;
-	unsigned int old, new;
-	int ret;
-
-	if (w->codec && w->codec->using_regmap) {
-		ret = regmap_update_bits_check_async(w->codec->control_data,
-						     reg, mask, value,
-						     &change);
-		if (ret != 0)
-			return ret;
-	} else {
-		soc_widget_lock(w);
-		ret = soc_widget_read(w, reg, &old);
-		if (ret < 0) {
-			soc_widget_unlock(w);
-			return ret;
-		}
-
-		new = (old & ~mask) | (value & mask);
-		change = old != new;
-		if (change) {
-			ret = soc_widget_write(w, reg, new);
-			if (ret < 0) {
-				soc_widget_unlock(w);
-				return ret;
-			}
-		}
-		soc_widget_unlock(w);
-	}
-
-	return change;
+	if (dapm->component)
+		snd_soc_component_async_complete(dapm->component);
 }
 
 /**
@@ -1120,26 +1058,6 @@ int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream,
 }
 
 /*
- * Handler for generic register modifier widget.
- */
-int dapm_reg_event(struct snd_soc_dapm_widget *w,
-		   struct snd_kcontrol *kcontrol, int event)
-{
-	unsigned int val;
-
-	if (SND_SOC_DAPM_EVENT_ON(event))
-		val = w->on_val;
-	else
-		val = w->off_val;
-
-	soc_widget_update_bits_locked(w, -(w->reg + 1),
-			    w->mask << w->shift, val << w->shift);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(dapm_reg_event);
-
-/*
  * Handler for regulator supply widget.
  */
 int dapm_regulator_event(struct snd_soc_dapm_widget *w,
@@ -1428,7 +1346,7 @@ static void dapm_seq_run_coalesced(struct snd_soc_card *card,
 			"pop test : Applying 0x%x/0x%x to %x in %dms\n",
 			value, mask, reg, card->pop_time);
 		pop_wait(card->pop_time);
-		soc_widget_update_bits_locked(w, reg, mask, value);
+		soc_widget_update_bits(w, reg, mask, value);
 	}
 
 	list_for_each_entry(w, pending, power_list) {
@@ -1574,8 +1492,7 @@ static void dapm_widget_update(struct snd_soc_card *card)
 	if (!w)
 		return;
 
-	ret = soc_widget_update_bits_locked(w, update->reg, update->mask,
-				  update->val);
+	ret = soc_widget_update_bits(w, update->reg, update->mask, update->val);
 	if (ret < 0)
 		dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n",
 			w->name, ret);
@@ -2446,8 +2363,7 @@ err:
 }
 
 static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm,
-				  const struct snd_soc_dapm_route *route,
-				  unsigned int is_prefixed)
+				  const struct snd_soc_dapm_route *route)
 {
 	struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w;
 	struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL;
@@ -2457,7 +2373,7 @@ static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm,
 	char prefixed_source[80];
 	int ret;
 
-	if (dapm->codec && dapm->codec->name_prefix && !is_prefixed) {
+	if (dapm->codec && dapm->codec->name_prefix) {
 		snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s",
 			 dapm->codec->name_prefix, route->sink);
 		sink = prefixed_sink;
@@ -2585,7 +2501,7 @@ int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
 
 	mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
 	for (i = 0; i < num; i++) {
-		r = snd_soc_dapm_add_route(dapm, route, false);
+		r = snd_soc_dapm_add_route(dapm, route);
 		if (r < 0) {
 			dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n",
 				route->source,
@@ -2857,22 +2773,19 @@ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
 	mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
 
 	change = dapm_kcontrol_set_value(kcontrol, val);
-
-	if (reg != SND_SOC_NOPM) {
-		mask = mask << shift;
-		val = val << shift;
-
-		change = snd_soc_test_bits(codec, reg, mask, val);
-	}
-
 	if (change) {
 		if (reg != SND_SOC_NOPM) {
-			update.kcontrol = kcontrol;
-			update.reg = reg;
-			update.mask = mask;
-			update.val = val;
+			mask = mask << shift;
+			val = val << shift;
+
+			if (snd_soc_test_bits(codec, reg, mask, val)) {
+				update.kcontrol = kcontrol;
+				update.reg = reg;
+				update.mask = mask;
+				update.val = val;
+				card->update = &update;
+			}
 
-			card->update = &update;
 		}
 
 		ret = soc_dapm_mixer_update_power(card, kcontrol, connect);
@@ -3311,11 +3224,11 @@ int snd_soc_dapm_new_pcm(struct snd_soc_card *card,
 			 struct snd_soc_dapm_widget *source,
 			 struct snd_soc_dapm_widget *sink)
 {
-	struct snd_soc_dapm_route routes[2];
 	struct snd_soc_dapm_widget template;
 	struct snd_soc_dapm_widget *w;
 	size_t len;
 	char *link_name;
+	int ret;
 
 	len = strlen(source->name) + strlen(sink->name) + 2;
 	link_name = devm_kzalloc(card->dev, len, GFP_KERNEL);
@@ -3342,15 +3255,10 @@ int snd_soc_dapm_new_pcm(struct snd_soc_card *card,
 
 	w->params = params;
 
-	memset(&routes, 0, sizeof(routes));
-
-	routes[0].source = source->name;
-	routes[0].sink = link_name;
-	routes[1].source = link_name;
-	routes[1].sink = sink->name;
-
-	return snd_soc_dapm_add_routes(&card->dapm, routes,
-				       ARRAY_SIZE(routes));
+	ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL);
+	if (ret)
+		return ret;
+	return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL);
 }
 
 int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm,
@@ -3408,6 +3316,7 @@ int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm,
 int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card)
 {
 	struct snd_soc_dapm_widget *dai_w, *w;
+	struct snd_soc_dapm_widget *src, *sink;
 	struct snd_soc_dai *dai;
 
 	/* For each DAI widget... */
@@ -3438,25 +3347,15 @@ int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card)
 			if (!w->sname || !strstr(w->sname, dai_w->name))
 				continue;
 
-			if (dai->driver->playback.stream_name &&
-			    strstr(w->sname,
-				   dai->driver->playback.stream_name)) {
-				dev_dbg(dai->dev, "%s -> %s\n",
-					 dai->playback_widget->name, w->name);
-
-				snd_soc_dapm_add_path(w->dapm,
-					dai->playback_widget, w, NULL, NULL);
-			}
-
-			if (dai->driver->capture.stream_name &&
-			    strstr(w->sname,
-				   dai->driver->capture.stream_name)) {
-				dev_dbg(dai->dev, "%s -> %s\n",
-					w->name, dai->capture_widget->name);
-
-				snd_soc_dapm_add_path(w->dapm, w,
-					dai->capture_widget, NULL, NULL);
+			if (dai_w->id == snd_soc_dapm_dai_in) {
+				src = dai_w;
+				sink = w;
+			} else {
+				src = w;
+				sink = dai_w;
 			}
+			dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name);
+			snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL);
 		}
 	}
 
@@ -3466,12 +3365,10 @@ int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card)
 void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card)
 {
 	struct snd_soc_pcm_runtime *rtd = card->rtd;
+	struct snd_soc_dapm_widget *sink, *source;
 	struct snd_soc_dai *cpu_dai, *codec_dai;
-	struct snd_soc_dapm_route r;
 	int i;
 
-	memset(&r, 0, sizeof(r));
-
 	/* for each BE DAI link... */
 	for (i = 0; i < card->num_rtd; i++) {
 		rtd = &card->rtd[i];
@@ -3492,55 +3389,49 @@ void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card)
 
 		/* connect BE DAI playback if widgets are valid */
 		if (codec_dai->playback_widget && cpu_dai->playback_widget) {
-			r.source = cpu_dai->playback_widget->name;
-			r.sink = codec_dai->playback_widget->name;
+			source = cpu_dai->playback_widget;
+			sink = codec_dai->playback_widget;
 			dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n",
-				cpu_dai->codec->name, r.source,
-				codec_dai->platform->name, r.sink);
+				cpu_dai->codec->name, source->name,
+				codec_dai->platform->name, sink->name);
 
-			snd_soc_dapm_add_route(&card->dapm, &r, true);
+			snd_soc_dapm_add_path(&card->dapm, source, sink,
+				NULL, NULL);
 		}
 
 		/* connect BE DAI capture if widgets are valid */
 		if (codec_dai->capture_widget && cpu_dai->capture_widget) {
-			r.source = codec_dai->capture_widget->name;
-			r.sink = cpu_dai->capture_widget->name;
+			source = codec_dai->capture_widget;
+			sink = cpu_dai->capture_widget;
 			dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n",
-				codec_dai->codec->name, r.source,
-				cpu_dai->platform->name, r.sink);
+				codec_dai->codec->name, source->name,
+				cpu_dai->platform->name, sink->name);
 
-			snd_soc_dapm_add_route(&card->dapm, &r, true);
+			snd_soc_dapm_add_path(&card->dapm, source, sink,
+				NULL, NULL);
 		}
-
 	}
 }
 
-static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
+static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream,
 	int event)
 {
+	struct snd_soc_dapm_widget *w;
 
-	struct snd_soc_dapm_widget *w_cpu, *w_codec;
-	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-	struct snd_soc_dai *codec_dai = rtd->codec_dai;
-
-	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		w_cpu = cpu_dai->playback_widget;
-		w_codec = codec_dai->playback_widget;
-	} else {
-		w_cpu = cpu_dai->capture_widget;
-		w_codec = codec_dai->capture_widget;
-	}
-
-	if (w_cpu) {
+	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+		w = dai->playback_widget;
+	else
+		w = dai->capture_widget;
 
-		dapm_mark_dirty(w_cpu, "stream event");
+	if (w) {
+		dapm_mark_dirty(w, "stream event");
 
 		switch (event) {
 		case SND_SOC_DAPM_STREAM_START:
-			w_cpu->active = 1;
+			w->active = 1;
 			break;
 		case SND_SOC_DAPM_STREAM_STOP:
-			w_cpu->active = 0;
+			w->active = 0;
 			break;
 		case SND_SOC_DAPM_STREAM_SUSPEND:
 		case SND_SOC_DAPM_STREAM_RESUME:
@@ -3549,25 +3440,13 @@ static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
 			break;
 		}
 	}
+}
 
-	if (w_codec) {
-
-		dapm_mark_dirty(w_codec, "stream event");
-
-		switch (event) {
-		case SND_SOC_DAPM_STREAM_START:
-			w_codec->active = 1;
-			break;
-		case SND_SOC_DAPM_STREAM_STOP:
-			w_codec->active = 0;
-			break;
-		case SND_SOC_DAPM_STREAM_SUSPEND:
-		case SND_SOC_DAPM_STREAM_RESUME:
-		case SND_SOC_DAPM_STREAM_PAUSE_PUSH:
-		case SND_SOC_DAPM_STREAM_PAUSE_RELEASE:
-			break;
-		}
-	}
+static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
+	int event)
+{
+	soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event);
+	soc_dapm_dai_stream_event(rtd->codec_dai, stream, event);
 
 	dapm_power_widgets(rtd->card, event);
 }