X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=sound%2Fsoc%2Fsoc-dapm.c;h=03cb7c05ebec2f26800fd7dc35e4798a811fcea1;hb=f3d56144c86beb25c7d206efa66d6efba908371c;hp=83fa9c47b6606aa128cdd9f39b76d1f0e0b37e0a;hpb=5817b52a298adce69e01acf2c131b3dcfda65d64;p=safe%2Fjmp%2Flinux-2.6

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 83fa9c4..03cb7c0 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2,8 +2,7 @@
  * soc-dapm.c  --  ALSA SoC Dynamic Audio Power Management
  *
  * Copyright 2005 Wolfson Microelectronics PLC.
- * Author: Liam Girdwood
- *         liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
  *
  *  This program is free software; you can redistribute  it and/or modify it
  *  under  the terms of  the GNU General  Public License as published by the
@@ -13,7 +12,7 @@
  *  Features:
  *    o Changes power status of internal codec blocks depending on the
  *      dynamic configuration of codec internal audio paths and active
- *      DAC's/ADC's.
+ *      DACs/ADCs.
  *    o Platform power domain - can support external components i.e. amps and
  *      mic/meadphone insertion events.
  *    o Automatic Mic Bias support
@@ -39,46 +38,59 @@
 #include <linux/platform_device.h>
 #include <linux/jiffies.h>
 #include <linux/debugfs.h>
+#include <linux/slab.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc-dapm.h>
 #include <sound/initval.h>
 
-/* debug */
-#ifdef DEBUG
-#define dump_dapm(codec, action) dbg_dump_dapm(codec, action)
-#else
-#define dump_dapm(codec, action)
-#endif
-
 /* dapm power sequences - make this per codec in the future */
 static int dapm_up_seq[] = {
-	snd_soc_dapm_pre, snd_soc_dapm_micbias, snd_soc_dapm_mic,
-	snd_soc_dapm_mux, snd_soc_dapm_dac, snd_soc_dapm_mixer, snd_soc_dapm_pga,
-	snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk, snd_soc_dapm_post
+	[snd_soc_dapm_pre] = 0,
+	[snd_soc_dapm_supply] = 1,
+	[snd_soc_dapm_micbias] = 2,
+	[snd_soc_dapm_aif_in] = 3,
+	[snd_soc_dapm_aif_out] = 3,
+	[snd_soc_dapm_mic] = 4,
+	[snd_soc_dapm_mux] = 5,
+	[snd_soc_dapm_value_mux] = 5,
+	[snd_soc_dapm_dac] = 6,
+	[snd_soc_dapm_mixer] = 7,
+	[snd_soc_dapm_mixer_named_ctl] = 7,
+	[snd_soc_dapm_pga] = 8,
+	[snd_soc_dapm_adc] = 9,
+	[snd_soc_dapm_hp] = 10,
+	[snd_soc_dapm_spk] = 10,
+	[snd_soc_dapm_post] = 11,
 };
+
 static int dapm_down_seq[] = {
-	snd_soc_dapm_pre, snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk,
-	snd_soc_dapm_pga, snd_soc_dapm_mixer, snd_soc_dapm_dac, snd_soc_dapm_mic,
-	snd_soc_dapm_micbias, snd_soc_dapm_mux, snd_soc_dapm_post
+	[snd_soc_dapm_pre] = 0,
+	[snd_soc_dapm_adc] = 1,
+	[snd_soc_dapm_hp] = 2,
+	[snd_soc_dapm_spk] = 2,
+	[snd_soc_dapm_pga] = 4,
+	[snd_soc_dapm_mixer_named_ctl] = 5,
+	[snd_soc_dapm_mixer] = 5,
+	[snd_soc_dapm_dac] = 6,
+	[snd_soc_dapm_mic] = 7,
+	[snd_soc_dapm_micbias] = 8,
+	[snd_soc_dapm_mux] = 9,
+	[snd_soc_dapm_value_mux] = 9,
+	[snd_soc_dapm_aif_in] = 10,
+	[snd_soc_dapm_aif_out] = 10,
+	[snd_soc_dapm_supply] = 11,
+	[snd_soc_dapm_post] = 12,
 };
 
-static int dapm_status = 1;
-module_param(dapm_status, int, 0);
-MODULE_PARM_DESC(dapm_status, "enable DPM sysfs entries");
-
-static struct dentry *asoc_debugfs;
-
-static u32 pop_time;
-
-static void pop_wait(void)
+static void pop_wait(u32 pop_time)
 {
 	if (pop_time)
 		schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time));
 }
 
-static void pop_dbg(const char *fmt, ...)
+static void pop_dbg(u32 pop_time, const char *fmt, ...)
 {
 	va_list args;
 
@@ -86,7 +98,6 @@ static void pop_dbg(const char *fmt, ...)
 
 	if (pop_time) {
 		vprintk(fmt, args);
-		pop_wait();
 	}
 
 	va_end(args);
@@ -99,13 +110,60 @@ static inline struct snd_soc_dapm_widget *dapm_cnew_widget(
 	return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL);
 }
 
+/**
+ * snd_soc_dapm_set_bias_level - set the bias level for the system
+ * @socdev: audio device
+ * @level: level to configure
+ *
+ * Configure the bias (power) levels for the SoC audio device.
+ *
+ * Returns 0 for success else error.
+ */
+static int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev,
+				       enum snd_soc_bias_level level)
+{
+	struct snd_soc_card *card = socdev->card;
+	struct snd_soc_codec *codec = socdev->card->codec;
+	int ret = 0;
+
+	switch (level) {
+	case SND_SOC_BIAS_ON:
+		dev_dbg(socdev->dev, "Setting full bias\n");
+		break;
+	case SND_SOC_BIAS_PREPARE:
+		dev_dbg(socdev->dev, "Setting bias prepare\n");
+		break;
+	case SND_SOC_BIAS_STANDBY:
+		dev_dbg(socdev->dev, "Setting standby bias\n");
+		break;
+	case SND_SOC_BIAS_OFF:
+		dev_dbg(socdev->dev, "Setting bias off\n");
+		break;
+	default:
+		dev_err(socdev->dev, "Setting invalid bias %d\n", level);
+		return -EINVAL;
+	}
+
+	if (card->set_bias_level)
+		ret = card->set_bias_level(card, level);
+	if (ret == 0) {
+		if (codec->set_bias_level)
+			ret = codec->set_bias_level(codec, level);
+		else
+			codec->bias_level = level;
+	}
+
+	return ret;
+}
+
 /* set up initial codec paths */
 static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
 	struct snd_soc_dapm_path *p, int i)
 {
 	switch (w->id) {
 	case snd_soc_dapm_switch:
-	case snd_soc_dapm_mixer: {
+	case snd_soc_dapm_mixer:
+	case snd_soc_dapm_mixer_named_ctl: {
 		int val;
 		struct soc_mixer_control *mc = (struct soc_mixer_control *)
 			w->kcontrols[i].private_value;
@@ -140,6 +198,25 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
 		}
 	}
 	break;
+	case snd_soc_dapm_value_mux: {
+		struct soc_enum *e = (struct soc_enum *)
+			w->kcontrols[i].private_value;
+		int val, item;
+
+		val = snd_soc_read(w->codec, e->reg);
+		val = (val >> e->shift_l) & e->mask;
+		for (item = 0; item < e->max; item++) {
+			if (val == e->values[item])
+				break;
+		}
+
+		p->connect = 0;
+		for (i = 0; i < e->max; i++) {
+			if (!(strcmp(p->name, e->texts[i])) && item == i)
+				p->connect = 1;
+		}
+	}
+	break;
 	/* does not effect routing - always connected */
 	case snd_soc_dapm_pga:
 	case snd_soc_dapm_output:
@@ -148,6 +225,9 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
 	case snd_soc_dapm_dac:
 	case snd_soc_dapm_micbias:
 	case snd_soc_dapm_vmid:
+	case snd_soc_dapm_supply:
+	case snd_soc_dapm_aif_in:
+	case snd_soc_dapm_aif_out:
 		p->connect = 1;
 	break;
 	/* does effect routing - dynamically connected */
@@ -162,7 +242,7 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
 	}
 }
 
-/* connect mux widget to it's interconnecting audio paths */
+/* connect mux widget to its interconnecting audio paths */
 static int dapm_connect_mux(struct snd_soc_codec *codec,
 	struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest,
 	struct snd_soc_dapm_path *path, const char *control_name,
@@ -185,7 +265,7 @@ static int dapm_connect_mux(struct snd_soc_codec *codec,
 	return -ENODEV;
 }
 
-/* connect mixer widget to it's interconnecting audio paths */
+/* connect mixer widget to its interconnecting audio paths */
 static int dapm_connect_mixer(struct snd_soc_codec *codec,
 	struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest,
 	struct snd_soc_dapm_path *path, const char *control_name)
@@ -210,7 +290,7 @@ static int dapm_connect_mixer(struct snd_soc_codec *codec,
 static int dapm_update_bits(struct snd_soc_dapm_widget *widget)
 {
 	int change, power;
-	unsigned short old, new;
+	unsigned int old, new;
 	struct snd_soc_codec *codec = widget->codec;
 
 	/* check for valid widgets */
@@ -231,70 +311,23 @@ static int dapm_update_bits(struct snd_soc_dapm_widget *widget)
 
 	change = old != new;
 	if (change) {
-		pop_dbg("pop test %s : %s in %d ms\n", widget->name,
-			widget->power ? "on" : "off", pop_time);
+		pop_dbg(codec->pop_time, "pop test %s : %s in %d ms\n",
+			widget->name, widget->power ? "on" : "off",
+			codec->pop_time);
+		pop_wait(codec->pop_time);
 		snd_soc_write(codec, widget->reg, new);
-		pop_wait();
 	}
 	pr_debug("reg %x old %x new %x change %d\n", widget->reg,
 		 old, new, change);
 	return change;
 }
 
-/* ramps the volume up or down to minimise pops before or after a
- * DAPM power event */
-static int dapm_set_pga(struct snd_soc_dapm_widget *widget, int power)
-{
-	const struct snd_kcontrol_new *k = widget->kcontrols;
-
-	if (widget->muted && !power)
-		return 0;
-	if (!widget->muted && power)
-		return 0;
-
-	if (widget->num_kcontrols && k) {
-		struct soc_mixer_control *mc =
-			(struct soc_mixer_control *)k->private_value;
-		unsigned int reg = mc->reg;
-		unsigned int shift = mc->shift;
-		int max = mc->max;
-		unsigned int mask = (1 << fls(max)) - 1;
-		unsigned int invert = mc->invert;
-
-		if (power) {
-			int i;
-			/* power up has happended, increase volume to last level */
-			if (invert) {
-				for (i = max; i > widget->saved_value; i--)
-					snd_soc_update_bits(widget->codec, reg, mask, i);
-			} else {
-				for (i = 0; i < widget->saved_value; i++)
-					snd_soc_update_bits(widget->codec, reg, mask, i);
-			}
-			widget->muted = 0;
-		} else {
-			/* power down is about to occur, decrease volume to mute */
-			int val = snd_soc_read(widget->codec, reg);
-			int i = widget->saved_value = (val >> shift) & mask;
-			if (invert) {
-				for (; i < mask; i++)
-					snd_soc_update_bits(widget->codec, reg, mask, i);
-			} else {
-				for (; i > 0; i--)
-					snd_soc_update_bits(widget->codec, reg, mask, i);
-			}
-			widget->muted = 1;
-		}
-	}
-	return 0;
-}
-
 /* create new dapm mixer control */
 static int dapm_new_mixer(struct snd_soc_codec *codec,
 	struct snd_soc_dapm_widget *w)
 {
 	int i, ret = 0;
-	char name[32];
+	size_t name_len;
 	struct snd_soc_dapm_path *path;
 
 	/* add kcontrol */
@@ -307,18 +340,41 @@ static int dapm_new_mixer(struct snd_soc_codec *codec,
 			if (path->name != (char*)w->kcontrols[i].name)
 				continue;
 
-			/* add dapm control with long name */
-			snprintf(name, 32, "%s %s", w->name, w->kcontrols[i].name);
-			path->long_name = kstrdup (name, GFP_KERNEL);
+			/* add dapm control with long name.
+			 * for dapm_mixer this is the concatenation of the
+			 * mixer and kcontrol name.
+			 * for dapm_mixer_named_ctl this is simply the
+			 * kcontrol name.
+			 */
+			name_len = strlen(w->kcontrols[i].name) + 1;
+			if (w->id != snd_soc_dapm_mixer_named_ctl)
+				name_len += 1 + strlen(w->name);
+
+			path->long_name = kmalloc(name_len, GFP_KERNEL);
+
 			if (path->long_name == NULL)
 				return -ENOMEM;
 
+			switch (w->id) {
+			default:
+				snprintf(path->long_name, name_len, "%s %s",
+					 w->name, w->kcontrols[i].name);
+				break;
+			case snd_soc_dapm_mixer_named_ctl:
+				snprintf(path->long_name, name_len, "%s",
+					 w->kcontrols[i].name);
+				break;
+			}
+
+			path->long_name[name_len - 1] = '\0';
+
 			path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w,
 				path->long_name);
 			ret = snd_ctl_add(codec->card, path->kcontrol);
 			if (ret < 0) {
-				printk(KERN_ERR "asoc: failed to add dapm kcontrol %s\n",
-						path->long_name);
+				printk(KERN_ERR "asoc: failed to add dapm kcontrol %s: %d\n",
+				       path->long_name,
+				       ret);
 				kfree(path->long_name);
 				path->long_name = NULL;
 				return ret;
@@ -360,20 +416,10 @@ err:
 static int dapm_new_pga(struct snd_soc_codec *codec,
 	struct snd_soc_dapm_widget *w)
 {
-	struct snd_kcontrol *kcontrol;
-	int ret = 0;
-
-	if (!w->num_kcontrols)
-		return -EINVAL;
-
-	kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name);
-	ret = snd_ctl_add(codec->card, kcontrol);
-	if (ret < 0) {
-		printk(KERN_ERR "asoc: failed to add kcontrol %s\n", w->name);
-		return ret;
-	}
+	if (w->num_kcontrols)
+		pr_err("asoc: PGA controls not supported: '%s'\n", w->name);
 
-	return ret;
+	return 0;
 }
 
 /* reset 'walked' bit for each dapm path */
@@ -385,6 +431,25 @@ static inline void dapm_clear_walk(struct snd_soc_codec *codec)
 		p->walked = 0;
 }
 
+/* We implement power down on suspend by checking the power state of
+ * the ALSA card - when we are suspending the ALSA state for the card
+ * is set to D3.
+ */
+static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget)
+{
+	struct snd_soc_codec *codec = widget->codec;
+
+	switch (snd_power_get_state(codec->card)) {
+	case SNDRV_CTL_POWER_D3hot:
+	case SNDRV_CTL_POWER_D3cold:
+		if (widget->ignore_suspend)
+			pr_debug("%s ignoring suspend\n", widget->name);
+		return widget->ignore_suspend;
+	default:
+		return 1;
+	}
+}
+
 /*
  * Recursively check for a completed path to an active or physically connected
  * output widget. Returns number of complete paths.
@@ -394,18 +459,27 @@ static int is_connected_output_ep(struct snd_soc_dapm_widget *widget)
 	struct snd_soc_dapm_path *path;
 	int con = 0;
 
-	if (widget->id == snd_soc_dapm_adc && widget->active)
-		return 1;
+	if (widget->id == snd_soc_dapm_supply)
+		return 0;
+
+	switch (widget->id) {
+	case snd_soc_dapm_adc:
+	case snd_soc_dapm_aif_out:
+		if (widget->active)
+			return snd_soc_dapm_suspend_check(widget);
+	default:
+		break;
+	}
 
 	if (widget->connected) {
 		/* connected pin ? */
 		if (widget->id == snd_soc_dapm_output && !widget->ext)
-			return 1;
+			return snd_soc_dapm_suspend_check(widget);
 
 		/* connected jack or spk ? */
 		if (widget->id == snd_soc_dapm_hp || widget->id == snd_soc_dapm_spk ||
-			widget->id == snd_soc_dapm_line)
-			return 1;
+		    (widget->id == snd_soc_dapm_line && !list_empty(&widget->sources)))
+			return snd_soc_dapm_suspend_check(widget);
 	}
 
 	list_for_each_entry(path, &widget->sinks, list_source) {
@@ -430,22 +504,32 @@ static int is_connected_input_ep(struct snd_soc_dapm_widget *widget)
 	struct snd_soc_dapm_path *path;
 	int con = 0;
 
+	if (widget->id == snd_soc_dapm_supply)
+		return 0;
+
 	/* active stream ? */
-	if (widget->id == snd_soc_dapm_dac && widget->active)
-		return 1;
+	switch (widget->id) {
+	case snd_soc_dapm_dac:
+	case snd_soc_dapm_aif_in:
+		if (widget->active)
+			return snd_soc_dapm_suspend_check(widget);
+	default:
+		break;
+	}
 
 	if (widget->connected) {
 		/* connected pin ? */
 		if (widget->id == snd_soc_dapm_input && !widget->ext)
-			return 1;
+			return snd_soc_dapm_suspend_check(widget);
 
 		/* connected VMID/Bias for lower pops */
 		if (widget->id == snd_soc_dapm_vmid)
-			return 1;
+			return snd_soc_dapm_suspend_check(widget);
 
 		/* connected jack ? */
-		if (widget->id == snd_soc_dapm_mic || widget->id == snd_soc_dapm_line)
-			return 1;
+		if (widget->id == snd_soc_dapm_mic ||
+		    (widget->id == snd_soc_dapm_line && !list_empty(&widget->sinks)))
+			return snd_soc_dapm_suspend_check(widget);
 	}
 
 	list_for_each_entry(path, &widget->sources, list_sink) {
@@ -481,6 +565,323 @@ int dapm_reg_event(struct snd_soc_dapm_widget *w,
 }
 EXPORT_SYMBOL_GPL(dapm_reg_event);
 
+/* Standard power change method, used to apply power changes to most
+ * widgets.
+ */
+static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w)
+{
+	int ret;
+
+	/* call any power change event handlers */
+	if (w->event)
+		pr_debug("power %s event for %s flags %x\n",
+			 w->power ? "on" : "off",
+			 w->name, w->event_flags);
+
+	/* power up pre event */
+	if (w->power && w->event &&
+	    (w->event_flags & SND_SOC_DAPM_PRE_PMU)) {
+		ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU);
+		if (ret < 0)
+			return ret;
+	}
+
+	/* power down pre event */
+	if (!w->power && w->event &&
+	    (w->event_flags & SND_SOC_DAPM_PRE_PMD)) {
+		ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD);
+		if (ret < 0)
+			return ret;
+	}
+
+	dapm_update_bits(w);
+
+	/* power up post event */
+	if (w->power && w->event &&
+	    (w->event_flags & SND_SOC_DAPM_POST_PMU)) {
+		ret = w->event(w,
+			       NULL, SND_SOC_DAPM_POST_PMU);
+		if (ret < 0)
+			return ret;
+	}
+
+	/* power down post event */
+	if (!w->power && w->event &&
+	    (w->event_flags & SND_SOC_DAPM_POST_PMD)) {
+		ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+/* Generic check to see if a widget should be powered.
+ */
+static int dapm_generic_check_power(struct snd_soc_dapm_widget *w)
+{
+	int in, out;
+
+	in = is_connected_input_ep(w);
+	dapm_clear_walk(w->codec);
+	out = is_connected_output_ep(w);
+	dapm_clear_walk(w->codec);
+	return out != 0 && in != 0;
+}
+
+/* Check to see if an ADC has power */
+static int dapm_adc_check_power(struct snd_soc_dapm_widget *w)
+{
+	int in;
+
+	if (w->active) {
+		in = is_connected_input_ep(w);
+		dapm_clear_walk(w->codec);
+		return in != 0;
+	} else {
+		return dapm_generic_check_power(w);
+	}
+}
+
+/* Check to see if a DAC has power */
+static int dapm_dac_check_power(struct snd_soc_dapm_widget *w)
+{
+	int out;
+
+	if (w->active) {
+		out = is_connected_output_ep(w);
+		dapm_clear_walk(w->codec);
+		return out != 0;
+	} else {
+		return dapm_generic_check_power(w);
+	}
+}
+
+/* Check to see if a power supply is needed */
+static int dapm_supply_check_power(struct snd_soc_dapm_widget *w)
+{
+	struct snd_soc_dapm_path *path;
+	int power = 0;
+
+	/* Check if one of our outputs is connected */
+	list_for_each_entry(path, &w->sinks, list_source) {
+		if (path->connected &&
+		    !path->connected(path->source, path->sink))
+			continue;
+
+		if (path->sink && path->sink->power_check &&
+		    path->sink->power_check(path->sink)) {
+			power = 1;
+			break;
+		}
+	}
+
+	dapm_clear_walk(w->codec);
+
+	return power;
+}
+
+static int dapm_seq_compare(struct snd_soc_dapm_widget *a,
+			    struct snd_soc_dapm_widget *b,
+			    int sort[])
+{
+	if (a->codec != b->codec)
+		return (unsigned long)a - (unsigned long)b;
+	if (sort[a->id] != sort[b->id])
+		return sort[a->id] - sort[b->id];
+	if (a->reg != b->reg)
+		return a->reg - b->reg;
+
+	return 0;
+}
+
+/* Insert a widget in order into a DAPM power sequence. */
+static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget,
+			    struct list_head *list,
+			    int sort[])
+{
+	struct snd_soc_dapm_widget *w;
+
+	list_for_each_entry(w, list, power_list)
+		if (dapm_seq_compare(new_widget, w, sort) < 0) {
+			list_add_tail(&new_widget->power_list, &w->power_list);
+			return;
+		}
+
+	list_add_tail(&new_widget->power_list, list);
+}
+
+/* Apply the coalesced changes from a DAPM sequence */
+static void dapm_seq_run_coalesced(struct snd_soc_codec *codec,
+				   struct list_head *pending)
+{
+	struct snd_soc_dapm_widget *w;
+	int reg, power, ret;
+	unsigned int value = 0;
+	unsigned int mask = 0;
+	unsigned int cur_mask;
+
+	reg = list_first_entry(pending, struct snd_soc_dapm_widget,
+			       power_list)->reg;
+
+	list_for_each_entry(w, pending, power_list) {
+		cur_mask = 1 << w->shift;
+		BUG_ON(reg != w->reg);
+
+		if (w->invert)
+			power = !w->power;
+		else
+			power = w->power;
+
+		mask |= cur_mask;
+		if (power)
+			value |= cur_mask;
+
+		pop_dbg(codec->pop_time,
+			"pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n",
+			w->name, reg, value, mask);
+
+		/* power up pre event */
+		if (w->power && w->event &&
+		    (w->event_flags & SND_SOC_DAPM_PRE_PMU)) {
+			pop_dbg(codec->pop_time, "pop test : %s PRE_PMU\n",
+				w->name);
+			ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU);
+			if (ret < 0)
+				pr_err("%s: pre event failed: %d\n",
+				       w->name, ret);
+		}
+
+		/* power down pre event */
+		if (!w->power && w->event &&
+		    (w->event_flags & SND_SOC_DAPM_PRE_PMD)) {
+			pop_dbg(codec->pop_time, "pop test : %s PRE_PMD\n",
+				w->name);
+			ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD);
+			if (ret < 0)
+				pr_err("%s: pre event failed: %d\n",
+				       w->name, ret);
+		}
+	}
+
+	if (reg >= 0) {
+		pop_dbg(codec->pop_time,
+			"pop test : Applying 0x%x/0x%x to %x in %dms\n",
+			value, mask, reg, codec->pop_time);
+		pop_wait(codec->pop_time);
+		snd_soc_update_bits(codec, reg, mask, value);
+	}
+
+	list_for_each_entry(w, pending, power_list) {
+		/* power up post event */
+		if (w->power && w->event &&
+		    (w->event_flags & SND_SOC_DAPM_POST_PMU)) {
+			pop_dbg(codec->pop_time, "pop test : %s POST_PMU\n",
+				w->name);
+			ret = w->event(w,
+				       NULL, SND_SOC_DAPM_POST_PMU);
+			if (ret < 0)
+				pr_err("%s: post event failed: %d\n",
+				       w->name, ret);
+		}
+
+		/* power down post event */
+		if (!w->power && w->event &&
+		    (w->event_flags & SND_SOC_DAPM_POST_PMD)) {
+			pop_dbg(codec->pop_time, "pop test : %s POST_PMD\n",
+				w->name);
+			ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD);
+			if (ret < 0)
+				pr_err("%s: post event failed: %d\n",
+				       w->name, ret);
+		}
+	}
+}
+
+/* Apply a DAPM power sequence.
+ *
+ * We walk over a pre-sorted list of widgets to apply power to.  In
+ * order to minimise the number of writes to the device required
+ * multiple widgets will be updated in a single write where possible.
+ * Currently anything that requires more than a single write is not
+ * handled.
+ */
+static void dapm_seq_run(struct snd_soc_codec *codec, struct list_head *list,
+			 int event, int sort[])
+{
+	struct snd_soc_dapm_widget *w, *n;
+	LIST_HEAD(pending);
+	int cur_sort = -1;
+	int cur_reg = SND_SOC_NOPM;
+	int ret;
+
+	list_for_each_entry_safe(w, n, list, power_list) {
+		ret = 0;
+
+		/* Do we need to apply any queued changes? */
+		if (sort[w->id] != cur_sort || w->reg != cur_reg) {
+			if (!list_empty(&pending))
+				dapm_seq_run_coalesced(codec, &pending);
+
+			INIT_LIST_HEAD(&pending);
+			cur_sort = -1;
+			cur_reg = SND_SOC_NOPM;
+		}
+
+		switch (w->id) {
+		case snd_soc_dapm_pre:
+			if (!w->event)
+				list_for_each_entry_safe_continue(w, n, list,
+								  power_list);
+
+			if (event == SND_SOC_DAPM_STREAM_START)
+				ret = w->event(w,
+					       NULL, SND_SOC_DAPM_PRE_PMU);
+			else if (event == SND_SOC_DAPM_STREAM_STOP)
+				ret = w->event(w,
+					       NULL, SND_SOC_DAPM_PRE_PMD);
+			break;
+
+		case snd_soc_dapm_post:
+			if (!w->event)
+				list_for_each_entry_safe_continue(w, n, list,
+								  power_list);
+
+			if (event == SND_SOC_DAPM_STREAM_START)
+				ret = w->event(w,
+					       NULL, SND_SOC_DAPM_POST_PMU);
+			else if (event == SND_SOC_DAPM_STREAM_STOP)
+				ret = w->event(w,
+					       NULL, SND_SOC_DAPM_POST_PMD);
+			break;
+
+		case snd_soc_dapm_input:
+		case snd_soc_dapm_output:
+		case snd_soc_dapm_hp:
+		case snd_soc_dapm_mic:
+		case snd_soc_dapm_line:
+		case snd_soc_dapm_spk:
+			/* No register support currently */
+			ret = dapm_generic_apply_power(w);
+			break;
+
+		default:
+			/* Queue it up for application */
+			cur_sort = sort[w->id];
+			cur_reg = w->reg;
+			list_move(&w->power_list, &pending);
+			break;
+		}
+
+		if (ret < 0)
+			pr_err("Failed to apply widget power: %d\n",
+			       ret);
+	}
+
+	if (!list_empty(&pending))
+		dapm_seq_run_coalesced(codec, &pending);
+}
+
 /*
  * Scan each dapm widget for complete audio path.
  * A complete path is a route that has valid endpoints i.e.:-
@@ -492,216 +893,244 @@ EXPORT_SYMBOL_GPL(dapm_reg_event);
  */
 static int dapm_power_widgets(struct snd_soc_codec *codec, int event)
 {
+	struct snd_soc_device *socdev = codec->socdev;
 	struct snd_soc_dapm_widget *w;
-	int in, out, i, c = 1, *seq = NULL, ret = 0, power_change, power;
-
-	/* do we have a sequenced stream event */
-	if (event == SND_SOC_DAPM_STREAM_START) {
-		c = ARRAY_SIZE(dapm_up_seq);
-		seq = dapm_up_seq;
-	} else if (event == SND_SOC_DAPM_STREAM_STOP) {
-		c = ARRAY_SIZE(dapm_down_seq);
-		seq = dapm_down_seq;
-	}
+	LIST_HEAD(up_list);
+	LIST_HEAD(down_list);
+	int ret = 0;
+	int power;
+	int sys_power = 0;
 
-	for(i = 0; i < c; i++) {
-		list_for_each_entry(w, &codec->dapm_widgets, list) {
+	/* Check which widgets we need to power and store them in
+	 * lists indicating if they should be powered up or down.
+	 */
+	list_for_each_entry(w, &codec->dapm_widgets, list) {
+		switch (w->id) {
+		case snd_soc_dapm_pre:
+			dapm_seq_insert(w, &down_list, dapm_down_seq);
+			break;
+		case snd_soc_dapm_post:
+			dapm_seq_insert(w, &up_list, dapm_up_seq);
+			break;
 
-			/* is widget in stream order */
-			if (seq && seq[i] && w->id != seq[i])
+		default:
+			if (!w->power_check)
 				continue;
 
-			/* vmid - no action */
-			if (w->id == snd_soc_dapm_vmid)
-				continue;
+			if (!w->force)
+				power = w->power_check(w);
+			else
+				power = 1;
+			if (power)
+				sys_power = 1;
 
-			/* active ADC */
-			if (w->id == snd_soc_dapm_adc && w->active) {
-				in = is_connected_input_ep(w);
-				dapm_clear_walk(w->codec);
-				w->power = (in != 0) ? 1 : 0;
-				dapm_update_bits(w);
+			if (w->power == power)
 				continue;
-			}
 
-			/* active DAC */
-			if (w->id == snd_soc_dapm_dac && w->active) {
-				out = is_connected_output_ep(w);
-				dapm_clear_walk(w->codec);
-				w->power = (out != 0) ? 1 : 0;
-				dapm_update_bits(w);
-				continue;
-			}
+			if (power)
+				dapm_seq_insert(w, &up_list, dapm_up_seq);
+			else
+				dapm_seq_insert(w, &down_list, dapm_down_seq);
 
-			/* pre and post event widgets */
-			if (w->id == snd_soc_dapm_pre) {
-				if (!w->event)
-					continue;
-
-				if (event == SND_SOC_DAPM_STREAM_START) {
-					ret = w->event(w,
-						NULL, SND_SOC_DAPM_PRE_PMU);
-					if (ret < 0)
-						return ret;
-				} else if (event == SND_SOC_DAPM_STREAM_STOP) {
-					ret = w->event(w,
-						NULL, SND_SOC_DAPM_PRE_PMD);
-					if (ret < 0)
-						return ret;
-				}
-				continue;
-			}
-			if (w->id == snd_soc_dapm_post) {
-				if (!w->event)
-					continue;
-
-				if (event == SND_SOC_DAPM_STREAM_START) {
-					ret = w->event(w,
-						NULL, SND_SOC_DAPM_POST_PMU);
-					if (ret < 0)
-						return ret;
-				} else if (event == SND_SOC_DAPM_STREAM_STOP) {
-					ret = w->event(w,
-						NULL, SND_SOC_DAPM_POST_PMD);
-					if (ret < 0)
-						return ret;
-				}
-				continue;
+			w->power = power;
+			break;
+		}
+	}
+
+	/* If there are no DAPM widgets then try to figure out power from the
+	 * event type.
+	 */
+	if (list_empty(&codec->dapm_widgets)) {
+		switch (event) {
+		case SND_SOC_DAPM_STREAM_START:
+		case SND_SOC_DAPM_STREAM_RESUME:
+			sys_power = 1;
+			break;
+		case SND_SOC_DAPM_STREAM_SUSPEND:
+			sys_power = 0;
+			break;
+		case SND_SOC_DAPM_STREAM_NOP:
+			switch (codec->bias_level) {
+				case SND_SOC_BIAS_STANDBY:
+				case SND_SOC_BIAS_OFF:
+					sys_power = 0;
+					break;
+				default:
+					sys_power = 1;
+					break;
 			}
+			break;
+		default:
+			break;
+		}
+	}
 
-			/* all other widgets */
-			in = is_connected_input_ep(w);
-			dapm_clear_walk(w->codec);
-			out = is_connected_output_ep(w);
-			dapm_clear_walk(w->codec);
-			power = (out != 0 && in != 0) ? 1 : 0;
-			power_change = (w->power == power) ? 0: 1;
-			w->power = power;
+	if (sys_power && codec->bias_level == SND_SOC_BIAS_OFF) {
+		ret = snd_soc_dapm_set_bias_level(socdev,
+						  SND_SOC_BIAS_STANDBY);
+		if (ret != 0)
+			pr_err("Failed to turn on bias: %d\n", ret);
+	}
 
-			if (!power_change)
-				continue;
+	/* If we're changing to all on or all off then prepare */
+	if ((sys_power && codec->bias_level == SND_SOC_BIAS_STANDBY) ||
+	    (!sys_power && codec->bias_level == SND_SOC_BIAS_ON)) {
+		ret = snd_soc_dapm_set_bias_level(socdev,
+						  SND_SOC_BIAS_PREPARE);
+		if (ret != 0)
+			pr_err("Failed to prepare bias: %d\n", ret);
+	}
 
-			/* call any power change event handlers */
-			if (w->event)
-				pr_debug("power %s event for %s flags %x\n",
-					 w->power ? "on" : "off",
-					 w->name, w->event_flags);
-
-			/* power up pre event */
-			if (power && w->event &&
-			    (w->event_flags & SND_SOC_DAPM_PRE_PMU)) {
-				ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU);
-				if (ret < 0)
-					return ret;
-			}
+	/* Power down widgets first; try to avoid amplifying pops. */
+	dapm_seq_run(codec, &down_list, event, dapm_down_seq);
 
-			/* power down pre event */
-			if (!power && w->event &&
-			    (w->event_flags & SND_SOC_DAPM_PRE_PMD)) {
-				ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD);
-				if (ret < 0)
-					return ret;
-			}
+	/* Now power up. */
+	dapm_seq_run(codec, &up_list, event, dapm_up_seq);
 
-			/* Lower PGA volume to reduce pops */
-			if (w->id == snd_soc_dapm_pga && !power)
-				dapm_set_pga(w, power);
+	/* If we just powered the last thing off drop to standby bias */
+	if (codec->bias_level == SND_SOC_BIAS_PREPARE && !sys_power) {
+		ret = snd_soc_dapm_set_bias_level(socdev,
+						  SND_SOC_BIAS_STANDBY);
+		if (ret != 0)
+			pr_err("Failed to apply standby bias: %d\n", ret);
+	}
 
-			dapm_update_bits(w);
+	/* If we're in standby and can support bias off then do that */
+	if (codec->bias_level == SND_SOC_BIAS_STANDBY &&
+	    codec->idle_bias_off) {
+		ret = snd_soc_dapm_set_bias_level(socdev, SND_SOC_BIAS_OFF);
+		if (ret != 0)
+			pr_err("Failed to turn off bias: %d\n", ret);
+	}
 
-			/* Raise PGA volume to reduce pops */
-			if (w->id == snd_soc_dapm_pga && power)
-				dapm_set_pga(w, power);
+	/* If we just powered up then move to active bias */
+	if (codec->bias_level == SND_SOC_BIAS_PREPARE && sys_power) {
+		ret = snd_soc_dapm_set_bias_level(socdev,
+						  SND_SOC_BIAS_ON);
+		if (ret != 0)
+			pr_err("Failed to apply active bias: %d\n", ret);
+	}
 
-			/* power up post event */
-			if (power && w->event &&
-			    (w->event_flags & SND_SOC_DAPM_POST_PMU)) {
-				ret = w->event(w,
-					       NULL, SND_SOC_DAPM_POST_PMU);
-				if (ret < 0)
-					return ret;
-			}
+	pop_dbg(codec->pop_time, "DAPM sequencing finished, waiting %dms\n",
+		codec->pop_time);
+	pop_wait(codec->pop_time);
 
-			/* power down post event */
-			if (!power && w->event &&
-			    (w->event_flags & SND_SOC_DAPM_POST_PMD)) {
-				ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD);
-				if (ret < 0)
-					return ret;
-			}
-		}
+	return 0;
+}
+
+#ifdef CONFIG_DEBUG_FS
+static int dapm_widget_power_open_file(struct inode *inode, struct file *file)
+{
+	file->private_data = inode->i_private;
+	return 0;
+}
+
+static ssize_t dapm_widget_power_read_file(struct file *file,
+					   char __user *user_buf,
+					   size_t count, loff_t *ppos)
+{
+	struct snd_soc_dapm_widget *w = file->private_data;
+	char *buf;
+	int in, out;
+	ssize_t ret;
+	struct snd_soc_dapm_path *p = NULL;
+
+	buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	in = is_connected_input_ep(w);
+	dapm_clear_walk(w->codec);
+	out = is_connected_output_ep(w);
+	dapm_clear_walk(w->codec);
+
+	ret = snprintf(buf, PAGE_SIZE, "%s: %s  in %d out %d",
+		       w->name, w->power ? "On" : "Off", in, out);
+
+	if (w->reg >= 0)
+		ret += snprintf(buf + ret, PAGE_SIZE - ret,
+				" - R%d(0x%x) bit %d",
+				w->reg, w->reg, w->shift);
+
+	ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n");
+
+	if (w->sname)
+		ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n",
+				w->sname,
+				w->active ? "active" : "inactive");
+
+	list_for_each_entry(p, &w->sources, list_sink) {
+		if (p->connected && !p->connected(w, p->sink))
+			continue;
+
+		if (p->connect)
+			ret += snprintf(buf + ret, PAGE_SIZE - ret,
+					" in  %s %s\n",
+					p->name ? p->name : "static",
+					p->source->name);
+	}
+	list_for_each_entry(p, &w->sinks, list_source) {
+		if (p->connected && !p->connected(w, p->sink))
+			continue;
+
+		if (p->connect)
+			ret += snprintf(buf + ret, PAGE_SIZE - ret,
+					" out %s %s\n",
+					p->name ? p->name : "static",
+					p->sink->name);
 	}
 
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
+
+	kfree(buf);
 	return ret;
 }
 
-#ifdef DEBUG
-static void dbg_dump_dapm(struct snd_soc_codec* codec, const char *action)
+static const struct file_operations dapm_widget_power_fops = {
+	.open = dapm_widget_power_open_file,
+	.read = dapm_widget_power_read_file,
+};
+
+void snd_soc_dapm_debugfs_init(struct snd_soc_codec *codec)
 {
 	struct snd_soc_dapm_widget *w;
-	struct snd_soc_dapm_path *p = NULL;
-	int in, out;
+	struct dentry *d;
 
-	printk("DAPM %s %s\n", codec->name, action);
+	if (!codec->debugfs_dapm)
+		return;
 
 	list_for_each_entry(w, &codec->dapm_widgets, list) {
-
-		/* only display widgets that effect routing */
-		switch (w->id) {
-		case snd_soc_dapm_pre:
-		case snd_soc_dapm_post:
-		case snd_soc_dapm_vmid:
+		if (!w->name)
 			continue;
-		case snd_soc_dapm_mux:
-		case snd_soc_dapm_output:
-		case snd_soc_dapm_input:
-		case snd_soc_dapm_switch:
-		case snd_soc_dapm_hp:
-		case snd_soc_dapm_mic:
-		case snd_soc_dapm_spk:
-		case snd_soc_dapm_line:
-		case snd_soc_dapm_micbias:
-		case snd_soc_dapm_dac:
-		case snd_soc_dapm_adc:
-		case snd_soc_dapm_pga:
-		case snd_soc_dapm_mixer:
-			if (w->name) {
-				in = is_connected_input_ep(w);
-				dapm_clear_walk(w->codec);
-				out = is_connected_output_ep(w);
-				dapm_clear_walk(w->codec);
-				printk("%s: %s  in %d out %d\n", w->name,
-					w->power ? "On":"Off",in, out);
-
-				list_for_each_entry(p, &w->sources, list_sink) {
-					if (p->connect)
-						printk(" in  %s %s\n", p->name ? p->name : "static",
-							p->source->name);
-				}
-				list_for_each_entry(p, &w->sinks, list_source) {
-					if (p->connect)
-						printk(" out %s %s\n", p->name ? p->name : "static",
-							p->sink->name);
-				}
-			}
-		break;
-		}
+
+		d = debugfs_create_file(w->name, 0444,
+					codec->debugfs_dapm, w,
+					&dapm_widget_power_fops);
+		if (!d)
+			printk(KERN_WARNING
+			       "ASoC: Failed to create %s debugfs file\n",
+			       w->name);
 	}
 }
+#else
+void snd_soc_dapm_debugfs_init(struct snd_soc_codec *codec)
+{
+}
 #endif
 
 /* test and update the power status of a mux widget */
 static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
-				 struct snd_kcontrol *kcontrol, int mask,
-				 int mux, int val, struct soc_enum *e)
+				 struct snd_kcontrol *kcontrol, int change,
+				 int mux, struct soc_enum *e)
 {
 	struct snd_soc_dapm_path *path;
 	int found = 0;
 
-	if (widget->id != snd_soc_dapm_mux)
+	if (widget->id != snd_soc_dapm_mux &&
+	    widget->id != snd_soc_dapm_value_mux)
 		return -ENODEV;
 
-	if (!snd_soc_test_bits(widget->codec, e->reg, mask, val))
+	if (!change)
 		return 0;
 
 	/* find dapm widget path assoc with kcontrol */
@@ -720,29 +1149,24 @@ static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
 			path->connect = 0; /* old connection must be powered down */
 	}
 
-	if (found) {
+	if (found)
 		dapm_power_widgets(widget->codec, SND_SOC_DAPM_STREAM_NOP);
-		dump_dapm(widget->codec, "mux power update");
-	}
 
 	return 0;
 }
 
 /* test and update the power status of a mixer or switch widget */
 static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
-				   struct snd_kcontrol *kcontrol, int reg,
-				   int val_mask, int val, int invert)
+				   struct snd_kcontrol *kcontrol, int connect)
 {
 	struct snd_soc_dapm_path *path;
 	int found = 0;
 
 	if (widget->id != snd_soc_dapm_mixer &&
+	    widget->id != snd_soc_dapm_mixer_named_ctl &&
 	    widget->id != snd_soc_dapm_switch)
 		return -ENODEV;
 
-	if (!snd_soc_test_bits(widget->codec, reg, val_mask, val))
-		return 0;
-
 	/* find dapm widget path assoc with kcontrol */
 	list_for_each_entry(path, &widget->codec->dapm_paths, list) {
 		if (path->kcontrol != kcontrol)
@@ -750,19 +1174,12 @@ static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
 
 		/* found, now check type */
 		found = 1;
-		if (val)
-			/* new connection */
-			path->connect = invert ? 0:1;
-		else
-			/* old connection must be powered down */
-			path->connect = invert ? 1:0;
+		path->connect = connect;
 		break;
 	}
 
-	if (found) {
+	if (found)
 		dapm_power_widgets(widget->codec, SND_SOC_DAPM_STREAM_NOP);
-		dump_dapm(widget->codec, "mixer power update");
-	}
 
 	return 0;
 }
@@ -772,7 +1189,7 @@ static ssize_t dapm_widget_show(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	struct snd_soc_device *devdata = dev_get_drvdata(dev);
-	struct snd_soc_codec *codec = devdata->codec;
+	struct snd_soc_codec *codec = devdata->card->codec;
 	struct snd_soc_dapm_widget *w;
 	int count = 0;
 	char *state = "not set";
@@ -790,6 +1207,8 @@ static ssize_t dapm_widget_show(struct device *dev,
 		case snd_soc_dapm_adc:
 		case snd_soc_dapm_pga:
 		case snd_soc_dapm_mixer:
+		case snd_soc_dapm_mixer_named_ctl:
+		case snd_soc_dapm_supply:
 			if (w->name)
 				count += sprintf(buf + count, "%s: %s\n",
 					w->name, w->power ? "On":"Off");
@@ -822,33 +1241,12 @@ static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL);
 
 int snd_soc_dapm_sys_add(struct device *dev)
 {
-	int ret = 0;
-
-	if (!dapm_status)
-		return 0;
-
-	ret = device_create_file(dev, &dev_attr_dapm_widget);
-	if (ret != 0)
-		return ret;
-
-	asoc_debugfs = debugfs_create_dir("asoc", NULL);
-	if (!IS_ERR(asoc_debugfs))
-		debugfs_create_u32("dapm_pop_time", 0744, asoc_debugfs,
-				   &pop_time);
-	else
-		asoc_debugfs = NULL;
-
-	return 0;
+	return device_create_file(dev, &dev_attr_dapm_widget);
 }
 
 static void snd_soc_dapm_sys_remove(struct device *dev)
 {
-	if (dapm_status) {
-		device_remove_file(dev, &dev_attr_dapm_widget);
-	}
-
-	if (asoc_debugfs)
-		debugfs_remove_recursive(asoc_debugfs);
+	device_remove_file(dev, &dev_attr_dapm_widget);
 }
 
 /* free all dapm widgets and resources */
@@ -870,7 +1268,7 @@ static void dapm_free_widgets(struct snd_soc_codec *codec)
 }
 
 static int snd_soc_dapm_set_pin(struct snd_soc_codec *codec,
-	char *pin, int status)
+				const char *pin, int status)
 {
 	struct snd_soc_dapm_widget *w;
 
@@ -878,6 +1276,9 @@ static int snd_soc_dapm_set_pin(struct snd_soc_codec *codec,
 		if (!strcmp(w->name, pin)) {
 			pr_debug("dapm: %s: pin %s\n", codec->name, pin);
 			w->connected = status;
+			/* Allow disabling of forced pins */
+			if (status == 0)
+				w->force = 0;
 			return 0;
 		}
 	}
@@ -897,17 +1298,18 @@ static int snd_soc_dapm_set_pin(struct snd_soc_codec *codec,
  */
 int snd_soc_dapm_sync(struct snd_soc_codec *codec)
 {
-	int ret = dapm_power_widgets(codec, SND_SOC_DAPM_STREAM_NOP);
-	dump_dapm(codec, "sync");
-	return ret;
+	return dapm_power_widgets(codec, SND_SOC_DAPM_STREAM_NOP);
 }
 EXPORT_SYMBOL_GPL(snd_soc_dapm_sync);
 
 static int snd_soc_dapm_add_route(struct snd_soc_codec *codec,
-	const char *sink, const char *control, const char *source)
+				  const struct snd_soc_dapm_route *route)
 {
 	struct snd_soc_dapm_path *path;
 	struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w;
+	const char *sink = route->sink;
+	const char *control = route->control;
+	const char *source = route->source;
 	int ret = 0;
 
 	/* find src and dest widgets */
@@ -931,6 +1333,7 @@ static int snd_soc_dapm_add_route(struct snd_soc_codec *codec,
 
 	path->source = wsource;
 	path->sink = wsink;
+	path->connected = route->connected;
 	INIT_LIST_HEAD(&path->list);
 	INIT_LIST_HEAD(&path->list_source);
 	INIT_LIST_HEAD(&path->list_sink);
@@ -939,8 +1342,8 @@ static int snd_soc_dapm_add_route(struct snd_soc_codec *codec,
 	if (wsink->id == snd_soc_dapm_input) {
 		if (wsource->id == snd_soc_dapm_micbias ||
 			wsource->id == snd_soc_dapm_mic ||
-			wsink->id == snd_soc_dapm_line ||
-			wsink->id == snd_soc_dapm_output)
+			wsource->id == snd_soc_dapm_line ||
+			wsource->id == snd_soc_dapm_output)
 			wsink->ext = 1;
 	}
 	if (wsource->id == snd_soc_dapm_output) {
@@ -971,12 +1374,16 @@ static int snd_soc_dapm_add_route(struct snd_soc_codec *codec,
 	case snd_soc_dapm_vmid:
 	case snd_soc_dapm_pre:
 	case snd_soc_dapm_post:
+	case snd_soc_dapm_supply:
+	case snd_soc_dapm_aif_in:
+	case snd_soc_dapm_aif_out:
 		list_add(&path->list, &codec->dapm_paths);
 		list_add(&path->list_sink, &wsink->sources);
 		list_add(&path->list_source, &wsource->sinks);
 		path->connect = 1;
 		return 0;
 	case snd_soc_dapm_mux:
+	case snd_soc_dapm_value_mux:
 		ret = dapm_connect_mux(codec, wsource, wsink, path, control,
 			&wsink->kcontrols[0]);
 		if (ret != 0)
@@ -984,6 +1391,7 @@ static int snd_soc_dapm_add_route(struct snd_soc_codec *codec,
 		break;
 	case snd_soc_dapm_switch:
 	case snd_soc_dapm_mixer:
+	case snd_soc_dapm_mixer_named_ctl:
 		ret = dapm_connect_mixer(codec, wsource, wsink, path, control);
 		if (ret != 0)
 			goto err;
@@ -1008,28 +1416,6 @@ err:
 }
 
 /**
- * snd_soc_dapm_connect_input - connect dapm widgets
- * @codec: audio codec
- * @sink: name of target widget
- * @control: mixer control name
- * @source: name of source name
- *
- * Connects 2 dapm widgets together via a named audio path. The sink is
- * the widget receiving the audio signal, whilst the source is the sender
- * of the audio signal.
- *
- * This function has been deprecated in favour of snd_soc_dapm_add_routes().
- *
- * Returns 0 for success else error.
- */
-int snd_soc_dapm_connect_input(struct snd_soc_codec *codec, const char *sink,
-	const char *control, const char *source)
-{
-	return snd_soc_dapm_add_route(codec, sink, control, source);
-}
-EXPORT_SYMBOL_GPL(snd_soc_dapm_connect_input);
-
-/**
  * snd_soc_dapm_add_routes - Add routes between DAPM widgets
  * @codec: codec
  * @route: audio routes
@@ -1048,8 +1434,7 @@ int snd_soc_dapm_add_routes(struct snd_soc_codec *codec,
 	int i, ret;
 
 	for (i = 0; i < num; i++) {
-		ret = snd_soc_dapm_add_route(codec, route->sink,
-					     route->control, route->source);
+		ret = snd_soc_dapm_add_route(codec, route);
 		if (ret < 0) {
 			printk(KERN_ERR "Failed to add route %s->%s\n",
 			       route->source,
@@ -1083,14 +1468,25 @@ int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec)
 		switch(w->id) {
 		case snd_soc_dapm_switch:
 		case snd_soc_dapm_mixer:
+		case snd_soc_dapm_mixer_named_ctl:
+			w->power_check = dapm_generic_check_power;
 			dapm_new_mixer(codec, w);
 			break;
 		case snd_soc_dapm_mux:
+		case snd_soc_dapm_value_mux:
+			w->power_check = dapm_generic_check_power;
 			dapm_new_mux(codec, w);
 			break;
 		case snd_soc_dapm_adc:
+		case snd_soc_dapm_aif_out:
+			w->power_check = dapm_adc_check_power;
+			break;
 		case snd_soc_dapm_dac:
+		case snd_soc_dapm_aif_in:
+			w->power_check = dapm_dac_check_power;
+			break;
 		case snd_soc_dapm_pga:
+			w->power_check = dapm_generic_check_power;
 			dapm_new_pga(codec, w);
 			break;
 		case snd_soc_dapm_input:
@@ -1100,6 +1496,10 @@ int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec)
 		case snd_soc_dapm_hp:
 		case snd_soc_dapm_mic:
 		case snd_soc_dapm_line:
+			w->power_check = dapm_generic_check_power;
+			break;
+		case snd_soc_dapm_supply:
+			w->power_check = dapm_supply_check_power;
 		case snd_soc_dapm_vmid:
 		case snd_soc_dapm_pre:
 		case snd_soc_dapm_post:
@@ -1116,7 +1516,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets);
 /**
  * snd_soc_dapm_get_volsw - dapm mixer get callback
  * @kcontrol: mixer control
- * @uinfo: control element information
+ * @ucontrol: control element information
  *
  * Callback to get the value of a dapm mixer control.
  *
@@ -1135,12 +1535,6 @@ int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol,
 	unsigned int invert = mc->invert;
 	unsigned int mask = (1 << fls(max)) - 1;
 
-	/* return the saved value if we are powered down */
-	if (widget->id == snd_soc_dapm_pga && !widget->power) {
-		ucontrol->value.integer.value[0] = widget->saved_value;
-		return 0;
-	}
-
 	ucontrol->value.integer.value[0] =
 		(snd_soc_read(widget->codec, reg) >> shift) & mask;
 	if (shift != rshift)
@@ -1161,7 +1555,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw);
 /**
  * snd_soc_dapm_put_volsw - dapm mixer set callback
  * @kcontrol: mixer control
- * @uinfo: control element information
+ * @ucontrol: control element information
  *
  * Callback to set the value of a dapm mixer control.
  *
@@ -1179,7 +1573,8 @@ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
 	int max = mc->max;
 	unsigned int mask = (1 << fls(max)) - 1;
 	unsigned int invert = mc->invert;
-	unsigned short val, val2, val_mask;
+	unsigned int val, val2, val_mask;
+	int connect;
 	int ret;
 
 	val = (ucontrol->value.integer.value[0] & mask);
@@ -1199,14 +1594,17 @@ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
 	mutex_lock(&widget->codec->mutex);
 	widget->value = val;
 
-	/* save volume value if the widget is powered down */
-	if (widget->id == snd_soc_dapm_pga && !widget->power) {
-		widget->saved_value = val;
-		mutex_unlock(&widget->codec->mutex);
-		return 1;
+	if (snd_soc_test_bits(widget->codec, reg, val_mask, val)) {
+		if (val)
+			/* new connection */
+			connect = invert ? 0:1;
+		else
+			/* old connection must be powered down */
+			connect = invert ? 1:0;
+
+		dapm_mixer_update_power(widget, kcontrol, connect);
 	}
 
-	dapm_mixer_update_power(widget, kcontrol, reg, val_mask, val, invert);
 	if (widget->event) {
 		if (widget->event_flags & SND_SOC_DAPM_PRE_REG) {
 			ret = widget->event(widget, kcontrol,
@@ -1232,7 +1630,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw);
 /**
  * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback
  * @kcontrol: mixer control
- * @uinfo: control element information
+ * @ucontrol: control element information
  *
  * Callback to get the value of a dapm enumerated double mixer control.
  *
@@ -1243,7 +1641,7 @@ int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
 	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
-	unsigned short val, bitmask;
+	unsigned int val, bitmask;
 
 	for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
 		;
@@ -1260,7 +1658,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double);
 /**
  * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback
  * @kcontrol: mixer control
- * @uinfo: control element information
+ * @ucontrol: control element information
  *
  * Callback to set the value of a dapm enumerated double mixer control.
  *
@@ -1271,8 +1669,8 @@ int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
 	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
-	unsigned short val, mux;
-	unsigned short mask, bitmask;
+	unsigned int val, mux, change;
+	unsigned int mask, bitmask;
 	int ret = 0;
 
 	for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
@@ -1291,20 +1689,21 @@ int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol,
 
 	mutex_lock(&widget->codec->mutex);
 	widget->value = val;
-	dapm_mux_update_power(widget, kcontrol, mask, mux, val, e);
-	if (widget->event) {
-		if (widget->event_flags & SND_SOC_DAPM_PRE_REG) {
-			ret = widget->event(widget,
-				kcontrol, SND_SOC_DAPM_PRE_REG);
-			if (ret < 0)
-				goto out;
-		}
-		ret = snd_soc_update_bits(widget->codec, e->reg, mask, val);
-		if (widget->event_flags & SND_SOC_DAPM_POST_REG)
-			ret = widget->event(widget,
-				kcontrol, SND_SOC_DAPM_POST_REG);
-	} else
-		ret = snd_soc_update_bits(widget->codec, e->reg, mask, val);
+	change = snd_soc_test_bits(widget->codec, e->reg, mask, val);
+	dapm_mux_update_power(widget, kcontrol, change, mux, e);
+
+	if (widget->event_flags & SND_SOC_DAPM_PRE_REG) {
+		ret = widget->event(widget,
+				    kcontrol, SND_SOC_DAPM_PRE_REG);
+		if (ret < 0)
+			goto out;
+	}
+
+	ret = snd_soc_update_bits(widget->codec, e->reg, mask, val);
+
+	if (widget->event_flags & SND_SOC_DAPM_POST_REG)
+		ret = widget->event(widget,
+				    kcontrol, SND_SOC_DAPM_POST_REG);
 
 out:
 	mutex_unlock(&widget->codec->mutex);
@@ -1313,6 +1712,222 @@ out:
 EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double);
 
 /**
+ * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
+
+	ucontrol->value.enumerated.item[0] = widget->value;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt);
+
+/**
+ * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
+	struct soc_enum *e =
+		(struct soc_enum *)kcontrol->private_value;
+	int change;
+	int ret = 0;
+
+	if (ucontrol->value.enumerated.item[0] >= e->max)
+		return -EINVAL;
+
+	mutex_lock(&widget->codec->mutex);
+
+	change = widget->value != ucontrol->value.enumerated.item[0];
+	widget->value = ucontrol->value.enumerated.item[0];
+	dapm_mux_update_power(widget, kcontrol, change, widget->value, e);
+
+	mutex_unlock(&widget->codec->mutex);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt);
+
+/**
+ * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get
+ *					callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to get the value of a dapm semi enumerated double mixer control.
+ *
+ * Semi enumerated mixer: the enumerated items are referred as values. Can be
+ * used for handling bitfield coded enumeration for example.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+	unsigned int reg_val, val, mux;
+
+	reg_val = snd_soc_read(widget->codec, e->reg);
+	val = (reg_val >> e->shift_l) & e->mask;
+	for (mux = 0; mux < e->max; mux++) {
+		if (val == e->values[mux])
+			break;
+	}
+	ucontrol->value.enumerated.item[0] = mux;
+	if (e->shift_l != e->shift_r) {
+		val = (reg_val >> e->shift_r) & e->mask;
+		for (mux = 0; mux < e->max; mux++) {
+			if (val == e->values[mux])
+				break;
+		}
+		ucontrol->value.enumerated.item[1] = mux;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double);
+
+/**
+ * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set
+ *					callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to set the value of a dapm semi enumerated double mixer control.
+ *
+ * Semi enumerated mixer: the enumerated items are referred as values. Can be
+ * used for handling bitfield coded enumeration for example.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+	unsigned int val, mux, change;
+	unsigned int mask;
+	int ret = 0;
+
+	if (ucontrol->value.enumerated.item[0] > e->max - 1)
+		return -EINVAL;
+	mux = ucontrol->value.enumerated.item[0];
+	val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l;
+	mask = e->mask << e->shift_l;
+	if (e->shift_l != e->shift_r) {
+		if (ucontrol->value.enumerated.item[1] > e->max - 1)
+			return -EINVAL;
+		val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r;
+		mask |= e->mask << e->shift_r;
+	}
+
+	mutex_lock(&widget->codec->mutex);
+	widget->value = val;
+	change = snd_soc_test_bits(widget->codec, e->reg, mask, val);
+	dapm_mux_update_power(widget, kcontrol, change, mux, e);
+
+	if (widget->event_flags & SND_SOC_DAPM_PRE_REG) {
+		ret = widget->event(widget,
+				    kcontrol, SND_SOC_DAPM_PRE_REG);
+		if (ret < 0)
+			goto out;
+	}
+
+	ret = snd_soc_update_bits(widget->codec, e->reg, mask, val);
+
+	if (widget->event_flags & SND_SOC_DAPM_POST_REG)
+		ret = widget->event(widget,
+				    kcontrol, SND_SOC_DAPM_POST_REG);
+
+out:
+	mutex_unlock(&widget->codec->mutex);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double);
+
+/**
+ * snd_soc_dapm_info_pin_switch - Info for a pin switch
+ *
+ * @kcontrol: mixer control
+ * @uinfo: control element information
+ *
+ * Callback to provide information about a pin switch control.
+ */
+int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch);
+
+/**
+ * snd_soc_dapm_get_pin_switch - Get information for a pin switch
+ *
+ * @kcontrol: mixer control
+ * @ucontrol: Value
+ */
+int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+	const char *pin = (const char *)kcontrol->private_value;
+
+	mutex_lock(&codec->mutex);
+
+	ucontrol->value.integer.value[0] =
+		snd_soc_dapm_get_pin_status(codec, pin);
+
+	mutex_unlock(&codec->mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch);
+
+/**
+ * snd_soc_dapm_put_pin_switch - Set information for a pin switch
+ *
+ * @kcontrol: mixer control
+ * @ucontrol: Value
+ */
+int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+	const char *pin = (const char *)kcontrol->private_value;
+
+	mutex_lock(&codec->mutex);
+
+	if (ucontrol->value.integer.value[0])
+		snd_soc_dapm_enable_pin(codec, pin);
+	else
+		snd_soc_dapm_disable_pin(codec, pin);
+
+	snd_soc_dapm_sync(codec);
+
+	mutex_unlock(&codec->mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch);
+
+/**
  * snd_soc_dapm_new_control - create new dapm control
  * @codec: audio codec
  * @widget: widget template
@@ -1359,8 +1974,12 @@ int snd_soc_dapm_new_controls(struct snd_soc_codec *codec,
 
 	for (i = 0; i < num; i++) {
 		ret = snd_soc_dapm_new_control(codec, widget);
-		if (ret < 0)
+		if (ret < 0) {
+			printk(KERN_ERR
+			       "ASoC: Failed to create DAPM control %s: %d\n",
+			       widget->name, ret);
 			return ret;
+		}
 		widget++;
 	}
 	return 0;
@@ -1403,81 +2022,76 @@ int snd_soc_dapm_stream_event(struct snd_soc_codec *codec,
 				w->active = 0;
 				break;
 			case SND_SOC_DAPM_STREAM_SUSPEND:
-				if (w->active)
-					w->suspend = 1;
-				w->active = 0;
-				break;
 			case SND_SOC_DAPM_STREAM_RESUME:
-				if (w->suspend) {
-					w->active = 1;
-					w->suspend = 0;
-				}
-				break;
 			case SND_SOC_DAPM_STREAM_PAUSE_PUSH:
-				break;
 			case SND_SOC_DAPM_STREAM_PAUSE_RELEASE:
 				break;
 			}
 		}
 	}
-	mutex_unlock(&codec->mutex);
 
 	dapm_power_widgets(codec, event);
-	dump_dapm(codec, __func__);
+	mutex_unlock(&codec->mutex);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event);
 
 /**
- * snd_soc_dapm_set_bias_level - set the bias level for the system
- * @socdev: audio device
- * @level: level to configure
- *
- * Configure the bias (power) levels for the SoC audio device.
+ * snd_soc_dapm_enable_pin - enable pin.
+ * @codec: SoC codec
+ * @pin: pin name
  *
- * Returns 0 for success else error.
+ * Enables input/output pin and its parents or children widgets iff there is
+ * a valid audio route and active audio stream.
+ * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
+ * do any widget power switching.
  */
-int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev,
-				enum snd_soc_bias_level level)
+int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, const char *pin)
 {
-	struct snd_soc_codec *codec = socdev->codec;
-	struct snd_soc_machine *machine = socdev->machine;
-	int ret = 0;
-
-	if (machine->set_bias_level)
-		ret = machine->set_bias_level(machine, level);
-	if (ret == 0 && codec->set_bias_level)
-		ret = codec->set_bias_level(codec, level);
-
-	return ret;
+	return snd_soc_dapm_set_pin(codec, pin, 1);
 }
+EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin);
 
 /**
- * snd_soc_dapm_enable_pin - enable pin.
- * @snd_soc_codec: SoC codec
+ * snd_soc_dapm_force_enable_pin - force a pin to be enabled
+ * @codec: SoC codec
  * @pin: pin name
  *
- * Enables input/output pin and it's parents or children widgets iff there is
- * a valid audio route and active audio stream.
+ * Enables input/output pin regardless of any other state.  This is
+ * intended for use with microphone bias supplies used in microphone
+ * jack detection.
+ *
  * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
  * do any widget power switching.
  */
-int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, char *pin)
+int snd_soc_dapm_force_enable_pin(struct snd_soc_codec *codec, const char *pin)
 {
-	return snd_soc_dapm_set_pin(codec, pin, 1);
+	struct snd_soc_dapm_widget *w;
+
+	list_for_each_entry(w, &codec->dapm_widgets, list) {
+		if (!strcmp(w->name, pin)) {
+			pr_debug("dapm: %s: pin %s\n", codec->name, pin);
+			w->connected = 1;
+			w->force = 1;
+			return 0;
+		}
+	}
+
+	pr_err("dapm: %s: configuring unknown pin %s\n", codec->name, pin);
+	return -EINVAL;
 }
-EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin);
+EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin);
 
 /**
  * snd_soc_dapm_disable_pin - disable pin.
  * @codec: SoC codec
  * @pin: pin name
  *
- * Disables input/output pin and it's parents or children widgets.
+ * Disables input/output pin and its parents or children widgets.
  * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
  * do any widget power switching.
  */
-int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, char *pin)
+int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, const char *pin)
 {
 	return snd_soc_dapm_set_pin(codec, pin, 0);
 }
@@ -1497,7 +2111,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin);
  * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
  * do any widget power switching.
  */
-int snd_soc_dapm_nc_pin(struct snd_soc_codec *codec, char *pin)
+int snd_soc_dapm_nc_pin(struct snd_soc_codec *codec, const char *pin)
 {
 	return snd_soc_dapm_set_pin(codec, pin, 0);
 }
@@ -1512,7 +2126,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin);
  *
  * Returns 1 for connected otherwise 0.
  */
-int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, char *pin)
+int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, const char *pin)
 {
 	struct snd_soc_dapm_widget *w;
 
@@ -1526,6 +2140,33 @@ int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, char *pin)
 EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status);
 
 /**
+ * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint
+ * @codec: audio codec
+ * @pin: audio signal pin endpoint (or start point)
+ *
+ * Mark the given endpoint or pin as ignoring suspend.  When the
+ * system is disabled a path between two endpoints flagged as ignoring
+ * suspend will not be disabled.  The path must already be enabled via
+ * normal means at suspend time, it will not be turned on if it was not
+ * already enabled.
+ */
+int snd_soc_dapm_ignore_suspend(struct snd_soc_codec *codec, const char *pin)
+{
+	struct snd_soc_dapm_widget *w;
+
+	list_for_each_entry(w, &codec->dapm_widgets, list) {
+		if (!strcmp(w->name, pin)) {
+			w->ignore_suspend = 1;
+			return 0;
+		}
+	}
+
+	pr_err("Unknown DAPM pin: %s\n", pin);
+	return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend);
+
+/**
  * snd_soc_dapm_free - free dapm resources
  * @socdev: SoC device
  *
@@ -1533,14 +2174,44 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status);
  */
 void snd_soc_dapm_free(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	snd_soc_dapm_sys_remove(socdev->dev);
 	dapm_free_widgets(codec);
 }
 EXPORT_SYMBOL_GPL(snd_soc_dapm_free);
 
+/*
+ * snd_soc_dapm_shutdown - callback for system shutdown
+ */
+void snd_soc_dapm_shutdown(struct snd_soc_device *socdev)
+{
+	struct snd_soc_codec *codec = socdev->card->codec;
+	struct snd_soc_dapm_widget *w;
+	LIST_HEAD(down_list);
+	int powerdown = 0;
+
+	list_for_each_entry(w, &codec->dapm_widgets, list) {
+		if (w->power) {
+			dapm_seq_insert(w, &down_list, dapm_down_seq);
+			w->power = 0;
+			powerdown = 1;
+		}
+	}
+
+	/* If there were no widgets to power down we're already in
+	 * standby.
+	 */
+	if (powerdown) {
+		snd_soc_dapm_set_bias_level(socdev, SND_SOC_BIAS_PREPARE);
+		dapm_seq_run(codec, &down_list, 0, dapm_down_seq);
+		snd_soc_dapm_set_bias_level(socdev, SND_SOC_BIAS_STANDBY);
+	}
+
+	snd_soc_dapm_set_bias_level(socdev, SND_SOC_BIAS_OFF);
+}
+
 /* Module information */
-MODULE_AUTHOR("Liam Girdwood, liam.girdwood@wolfsonmicro.com, www.wolfsonmicro.com");
+MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
 MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC");
 MODULE_LICENSE("GPL");