Merge branch 'master' into fixes

1 files changed, 88 insertions, 2 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index f42e8b9..3ad1f59 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -39,6 +39,7 @@
 #include <linux/platform_device.h>
 #include <linux/jiffies.h>
 #include <linux/debugfs.h>
+#include <linux/pm_runtime.h>
 #include <linux/slab.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
@@ -339,6 +340,7 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
 	case snd_soc_dapm_output:
 	case snd_soc_dapm_adc:
 	case snd_soc_dapm_input:
+	case snd_soc_dapm_siggen:
 	case snd_soc_dapm_dac:
 	case snd_soc_dapm_micbias:
 	case snd_soc_dapm_vmid:
@@ -772,6 +774,11 @@ static int is_connected_input_ep(struct snd_soc_dapm_widget *widget)
 			return widget->inputs;
 		}
 
+		/* signal generator */
+		if (widget->id == snd_soc_dapm_siggen) {
+			widget->inputs = snd_soc_dapm_suspend_check(widget);
+			return widget->inputs;
+		}
 	}
 
 	list_for_each_entry(path, &widget->sources, list_sink) {
@@ -1200,6 +1207,9 @@ static void dapm_pre_sequence_async(void *data, async_cookie_t cookie)
 	/* If we're off and we're not supposed to be go into STANDBY */
 	if (d->bias_level == SND_SOC_BIAS_OFF &&
 	    d->target_bias_level != SND_SOC_BIAS_OFF) {
+		if (d->dev)
+			pm_runtime_get_sync(d->dev);
+
 		ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY);
 		if (ret != 0)
 			dev_err(d->dev,
@@ -1239,6 +1249,9 @@ static void dapm_post_sequence_async(void *data, async_cookie_t cookie)
 		ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF);
 		if (ret != 0)
 			dev_err(d->dev, "Failed to turn off bias: %d\n", ret);
+
+		if (d->dev)
+			pm_runtime_put_sync(d->dev);
 	}
 
 	/* If we just powered up then move to active bias */
@@ -1725,8 +1738,7 @@ static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
 static ssize_t dapm_widget_show(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
-	struct snd_soc_pcm_runtime *rtd =
-			container_of(dev, struct snd_soc_pcm_runtime, dev);
+	struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
 	struct snd_soc_codec *codec =rtd->codec;
 	struct snd_soc_dapm_widget *w;
 	int count = 0;
@@ -1982,6 +1994,7 @@ static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm,
 	case snd_soc_dapm_out_drv:
 	case snd_soc_dapm_input:
 	case snd_soc_dapm_output:
+	case snd_soc_dapm_siggen:
 	case snd_soc_dapm_micbias:
 	case snd_soc_dapm_vmid:
 	case snd_soc_dapm_pre:
@@ -2947,6 +2960,79 @@ int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm,
 }
 EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend);
 
+static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card,
+					      struct snd_soc_dapm_widget *w)
+{
+	struct snd_soc_dapm_path *p;
+
+	list_for_each_entry(p, &card->paths, list) {
+		if ((p->source == w) || (p->sink == w)) {
+			dev_dbg(card->dev,
+			    "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n",
+			    p->source->name, p->source->id, p->source->dapm,
+			    p->sink->name, p->sink->id, p->sink->dapm);
+
+			/* Connected to something other than the codec */
+			if (p->source->dapm != p->sink->dapm)
+				return true;
+			/*
+			 * Loopback connection from codec external pin to
+			 * codec external pin
+			 */
+			if (p->sink->id == snd_soc_dapm_input) {
+				switch (p->source->id) {
+				case snd_soc_dapm_output:
+				case snd_soc_dapm_micbias:
+					return true;
+				default:
+					break;
+				}
+			}
+		}
+	}
+
+	return false;
+}
+
+/**
+ * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins
+ * @codec: The codec whose pins should be processed
+ *
+ * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec
+ * which are unused. Pins are used if they are connected externally to the
+ * codec, whether that be to some other device, or a loop-back connection to
+ * the codec itself.
+ */
+void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec)
+{
+	struct snd_soc_card *card = codec->card;
+	struct snd_soc_dapm_context *dapm = &codec->dapm;
+	struct snd_soc_dapm_widget *w;
+
+	dev_dbg(codec->dev, "Auto NC: DAPMs: card:%p codec:%p\n",
+		&card->dapm, &codec->dapm);
+
+	list_for_each_entry(w, &card->widgets, list) {
+		if (w->dapm != dapm)
+			continue;
+		switch (w->id) {
+		case snd_soc_dapm_input:
+		case snd_soc_dapm_output:
+		case snd_soc_dapm_micbias:
+			dev_dbg(codec->dev, "Auto NC: Checking widget %s\n",
+				w->name);
+			if (!snd_soc_dapm_widget_in_card_paths(card, w)) {
+				dev_dbg(codec->dev,
+					"... Not in map; disabling\n");
+				snd_soc_dapm_nc_pin(dapm, w->name);
+			}
+			break;
+		default:
+			break;
+		}
+	}
+}
+
 /**
  * snd_soc_dapm_free - free dapm resources
  * @dapm: DAPM context