10 files changed, 150 insertions, 130 deletions

diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index bf4cf0c1d37..f8223fae580 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -221,7 +221,8 @@ int snd_soc_dapm_add_routes(struct snd_soc_codec *codec,
 /* dapm events */
 int snd_soc_dapm_stream_event(struct snd_soc_codec *codec, char *stream,
         int event);
-int snd_soc_dapm_device_event(struct snd_soc_device *socdev, int event);
+int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev,
+        enum snd_soc_bias_level level);
 
 /* dapm sys fs - used by the core */
 int snd_soc_dapm_sys_add(struct device *dev);
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 73accbcfbd2..bca9538d9e5 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -103,6 +103,24 @@
         .private_value = (unsigned long)&xenum }
 
 /*
+ * Bias levels
+ *
+ * @ON:      Bias is fully on for audio playback and capture operations.
+ * @PREPARE: Prepare for audio operations. Called before DAPM switching for
+ *           stream start and stop operations.
+ * @STANDBY: Low power standby state when no playback/capture operations are
+ *           in progress. NOTE: The transition time between STANDBY and ON
+ *           should be as fast as possible and no longer than 10ms.
+ * @OFF:     Power Off. No restrictions on transition times.
+ */
+enum snd_soc_bias_level {
+        SND_SOC_BIAS_ON,
+        SND_SOC_BIAS_PREPARE,
+        SND_SOC_BIAS_STANDBY,
+        SND_SOC_BIAS_OFF,
+};
+
+/*
  * Digital Audio Interface (DAI) types
  */
 #define SND_SOC_DAI_AC97        0x1
@@ -356,7 +374,8 @@ struct snd_soc_codec {
         struct mutex mutex;
 
         /* callbacks */
-        int (*dapm_event)(struct snd_soc_codec *codec, int event);
+        int (*set_bias_level)(struct snd_soc_codec *,
+                              enum snd_soc_bias_level level);
 
         /* runtime */
         struct snd_card *card;
@@ -378,8 +397,8 @@ struct snd_soc_codec {
         /* dapm */
         struct list_head dapm_widgets;
         struct list_head dapm_paths;
-        unsigned int dapm_state;
-        unsigned int suspend_dapm_state;
+        enum snd_soc_bias_level bias_level;
+        enum snd_soc_bias_level suspend_bias_level;
         struct delayed_work delayed_work;
 
         /* codec DAI's */
@@ -449,7 +468,8 @@ struct snd_soc_machine {
         int (*resume_post)(struct platform_device *pdev);
 
         /* callbacks */
-        int (*dapm_event)(struct snd_soc_machine *, int event);
+        int (*set_bias_level)(struct snd_soc_machine *,
+                              enum snd_soc_bias_level level);
 
         /* CPU <--> Codec DAI links  */
         struct snd_soc_dai_link *dai_link;
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index cb8365ac0c0..dc8a38d9e53 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -847,13 +847,14 @@ static int aic3x_set_dai_fmt(struct snd_soc_codec_dai *codec_dai,
         return 0;
 }
 
-static int aic3x_dapm_event(struct snd_soc_codec *codec, int event)
+static int aic3x_set_bias_level(struct snd_soc_codec *codec,
+                                enum snd_soc_bias_level level)
 {
         struct aic3x_priv *aic3x = codec->private_data;
         u8 reg;
 
-        switch (event) {
-        case SNDRV_CTL_POWER_D0:
+        switch (level) {
+        case SND_SOC_BIAS_ON:
                 /* all power is driven by DAPM system */
                 if (aic3x->master) {
                         /* enable pll */
@@ -862,10 +863,9 @@ static int aic3x_dapm_event(struct snd_soc_codec *codec, int event)
                                     reg | PLL_ENABLE);
                 }
                 break;
-        case SNDRV_CTL_POWER_D1:
-        case SNDRV_CTL_POWER_D2:
+        case SND_SOC_BIAS_PREPARE:
                 break;
-        case SNDRV_CTL_POWER_D3hot:
+        case SND_SOC_BIAS_STANDBY:
                 /*
                  * all power is driven by DAPM system,
                  * so output power is safe if bypass was set
@@ -877,7 +877,7 @@ static int aic3x_dapm_event(struct snd_soc_codec *codec, int event)
                                     reg & ~PLL_ENABLE);
                 }
                 break;
-        case SNDRV_CTL_POWER_D3cold:
+        case SND_SOC_BIAS_OFF:
                 /* force all power off */
                 reg = aic3x_read_reg_cache(codec, LINE1L_2_LADC_CTRL);
                 aic3x_write(codec, LINE1L_2_LADC_CTRL, reg & ~LADC_PWR_ON);
@@ -913,7 +913,7 @@ static int aic3x_dapm_event(struct snd_soc_codec *codec, int event)
                 }
                 break;
         }
-        codec->dapm_state = event;
+        codec->bias_level = level;
 
         return 0;
 }
@@ -979,7 +979,7 @@ static int aic3x_suspend(struct platform_device *pdev, pm_message_t state)
         struct snd_soc_device *socdev = platform_get_drvdata(pdev);
         struct snd_soc_codec *codec = socdev->codec;
 
-        aic3x_dapm_event(codec, SNDRV_CTL_POWER_D3cold);
+        aic3x_set_bias_level(codec, SND_SOC_BIAS_OFF);
 
         return 0;
 }
@@ -999,7 +999,7 @@ static int aic3x_resume(struct platform_device *pdev)
                 codec->hw_write(codec->control_data, data, 2);
         }
 
-        aic3x_dapm_event(codec, codec->suspend_dapm_state);
+        aic3x_set_bias_level(codec, codec->suspend_bias_level);
 
         return 0;
 }
@@ -1018,7 +1018,7 @@ static int aic3x_init(struct snd_soc_device *socdev)
         codec->owner = THIS_MODULE;
         codec->read = aic3x_read_reg_cache;
         codec->write = aic3x_write;
-        codec->dapm_event = aic3x_dapm_event;
+        codec->set_bias_level = aic3x_set_bias_level;
         codec->dai = &aic3x_dai;
         codec->num_dai = 1;
         codec->reg_cache_size = sizeof(aic3x_reg);
@@ -1100,7 +1100,7 @@ static int aic3x_init(struct snd_soc_device *socdev)
         aic3x_write(codec, LINE2R_2_MONOLOPM_VOL, DEFAULT_VOL);
 
         /* off, with power on */
-        aic3x_dapm_event(codec, SNDRV_CTL_POWER_D3hot);
+        aic3x_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
         /* setup GPIO functions */
         aic3x_write(codec, AIC3X_GPIO1_REG, (setup->gpio_func[0] & 0xf) << 4);
@@ -1271,7 +1271,7 @@ static int aic3x_remove(struct platform_device *pdev)
 
         /* power down chip */
         if (codec->control_data)
-                aic3x_dapm_event(codec, SNDRV_CTL_POWER_D3);
+                aic3x_set_bias_level(codec, SND_SOC_BIAS_OFF);
 
         snd_soc_free_pcms(socdev);
         snd_soc_dapm_free(socdev);
diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index 0cf9265fca8..0f28aa4bccc 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -435,29 +435,29 @@ static int wm8731_set_dai_fmt(struct snd_soc_codec_dai *codec_dai,
         return 0;
 }
 
-static int wm8731_dapm_event(struct snd_soc_codec *codec, int event)
+static int wm8731_set_bias_level(struct snd_soc_codec *codec,
+                                 enum snd_soc_bias_level level)
 {
         u16 reg = wm8731_read_reg_cache(codec, WM8731_PWR) & 0xff7f;
 
-        switch (event) {
-        case SNDRV_CTL_POWER_D0: /* full On */
+        switch (level) {
+        case SND_SOC_BIAS_ON:
                 /* vref/mid, osc on, dac unmute */
                 wm8731_write(codec, WM8731_PWR, reg);
                 break;
-        case SNDRV_CTL_POWER_D1: /* partial On */
-        case SNDRV_CTL_POWER_D2: /* partial On */
+        case SND_SOC_BIAS_PREPARE:
                 break;
-        case SNDRV_CTL_POWER_D3hot: /* Off, with power */
+        case SND_SOC_BIAS_STANDBY:
                 /* everything off except vref/vmid, */
                 wm8731_write(codec, WM8731_PWR, reg | 0x0040);
                 break;
-        case SNDRV_CTL_POWER_D3cold: /* Off, without power */
+        case SND_SOC_BIAS_OFF:
                 /* everything off, dac mute, inactive */
                 wm8731_write(codec, WM8731_ACTIVE, 0x0);
                 wm8731_write(codec, WM8731_PWR, 0xffff);
                 break;
         }
-        codec->dapm_state = event;
+        codec->bias_level = level;
         return 0;
 }
 
@@ -503,7 +503,7 @@ static int wm8731_suspend(struct platform_device *pdev, pm_message_t state)
         struct snd_soc_codec *codec = socdev->codec;
 
         wm8731_write(codec, WM8731_ACTIVE, 0x0);
-        wm8731_dapm_event(codec, SNDRV_CTL_POWER_D3cold);
+        wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF);
         return 0;
 }
 
@@ -521,8 +521,8 @@ static int wm8731_resume(struct platform_device *pdev)
                 data[1] = cache[i] & 0x00ff;
                 codec->hw_write(codec->control_data, data, 2);
         }
-        wm8731_dapm_event(codec, SNDRV_CTL_POWER_D3hot);
-        wm8731_dapm_event(codec, codec->suspend_dapm_state);
+        wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+        wm8731_set_bias_level(codec, codec->suspend_bias_level);
         return 0;
 }
 
@@ -539,7 +539,7 @@ static int wm8731_init(struct snd_soc_device *socdev)
         codec->owner = THIS_MODULE;
         codec->read = wm8731_read_reg_cache;
         codec->write = wm8731_write;
-        codec->dapm_event = wm8731_dapm_event;
+        codec->set_bias_level = wm8731_set_bias_level;
         codec->dai = &wm8731_dai;
         codec->num_dai = 1;
         codec->reg_cache_size = sizeof(wm8731_reg);
@@ -557,7 +557,7 @@ static int wm8731_init(struct snd_soc_device *socdev)
         }
 
         /* power on device */
-        wm8731_dapm_event(codec, SNDRV_CTL_POWER_D3hot);
+        wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
         /* set the update bits */
         reg = wm8731_read_reg_cache(codec, WM8731_LOUT1V);
@@ -730,7 +730,7 @@ static int wm8731_remove(struct platform_device *pdev)
         struct snd_soc_codec *codec = socdev->codec;
 
         if (codec->control_data)
-                wm8731_dapm_event(codec, SNDRV_CTL_POWER_D3cold);
+                wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF);
 
         snd_soc_free_pcms(socdev);
         snd_soc_dapm_free(socdev);
diff --git a/sound/soc/codecs/wm8750.c b/sound/soc/codecs/wm8750.c
index 16cd5d4d5ad..62423f4493b 100644
--- a/sound/soc/codecs/wm8750.c
+++ b/sound/soc/codecs/wm8750.c
@@ -686,29 +686,29 @@ static int wm8750_mute(struct snd_soc_codec_dai *dai, int mute)
         return 0;
 }
 
-static int wm8750_dapm_event(struct snd_soc_codec *codec, int event)
+static int wm8750_set_bias_level(struct snd_soc_codec *codec,
+                                 enum snd_soc_bias_level level)
 {
         u16 pwr_reg = wm8750_read_reg_cache(codec, WM8750_PWR1) & 0xfe3e;
 
-        switch (event) {
-        case SNDRV_CTL_POWER_D0: /* full On */
+        switch (level) {
+        case SND_SOC_BIAS_ON:
                 /* set vmid to 50k and unmute dac */
                 wm8750_write(codec, WM8750_PWR1, pwr_reg | 0x00c0);
                 break;
-        case SNDRV_CTL_POWER_D1: /* partial On */
-        case SNDRV_CTL_POWER_D2: /* partial On */
+        case SND_SOC_BIAS_PREPARE:
                 /* set vmid to 5k for quick power up */
                 wm8750_write(codec, WM8750_PWR1, pwr_reg | 0x01c1);
                 break;
-        case SNDRV_CTL_POWER_D3hot: /* Off, with power */
+        case SND_SOC_BIAS_STANDBY:
                 /* mute dac and set vmid to 500k, enable VREF */
                 wm8750_write(codec, WM8750_PWR1, pwr_reg | 0x0141);
                 break;
-        case SNDRV_CTL_POWER_D3cold: /* Off, without power */
+        case SND_SOC_BIAS_OFF:
                 wm8750_write(codec, WM8750_PWR1, 0x0001);
                 break;
         }
-        codec->dapm_state = event;
+        codec->bias_level = level;
         return 0;
 }
 
@@ -748,7 +748,7 @@ static void wm8750_work(struct work_struct *work)
 {
         struct snd_soc_codec *codec =
                 container_of(work, struct snd_soc_codec, delayed_work.work);
-        wm8750_dapm_event(codec, codec->dapm_state);
+        wm8750_set_bias_level(codec, codec->bias_level);
 }
 
 static int wm8750_suspend(struct platform_device *pdev, pm_message_t state)
@@ -756,7 +756,7 @@ static int wm8750_suspend(struct platform_device *pdev, pm_message_t state)
         struct snd_soc_device *socdev = platform_get_drvdata(pdev);
         struct snd_soc_codec *codec = socdev->codec;
 
-        wm8750_dapm_event(codec, SNDRV_CTL_POWER_D3cold);
+        wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF);
         return 0;
 }
 
@@ -777,12 +777,12 @@ static int wm8750_resume(struct platform_device *pdev)
                 codec->hw_write(codec->control_data, data, 2);
         }
 
-        wm8750_dapm_event(codec, SNDRV_CTL_POWER_D3hot);
+        wm8750_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
         /* charge wm8750 caps */
-        if (codec->suspend_dapm_state == SNDRV_CTL_POWER_D0) {
-                wm8750_dapm_event(codec, SNDRV_CTL_POWER_D2);
-                codec->dapm_state = SNDRV_CTL_POWER_D0;
+        if (codec->suspend_bias_level == SND_SOC_BIAS_ON) {
+                wm8750_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
+                codec->bias_level = SND_SOC_BIAS_ON;
                 schedule_delayed_work(&codec->delayed_work,
                                         msecs_to_jiffies(1000));
         }
@@ -803,7 +803,7 @@ static int wm8750_init(struct snd_soc_device *socdev)
         codec->owner = THIS_MODULE;
         codec->read = wm8750_read_reg_cache;
         codec->write = wm8750_write;
-        codec->dapm_event = wm8750_dapm_event;
+        codec->set_bias_level = wm8750_set_bias_level;
         codec->dai = &wm8750_dai;
         codec->num_dai = 1;
         codec->reg_cache_size = sizeof(wm8750_reg);
@@ -821,8 +821,8 @@ static int wm8750_init(struct snd_soc_device *socdev)
         }
 
         /* charge output caps */
-        wm8750_dapm_event(codec, SNDRV_CTL_POWER_D2);
-        codec->dapm_state = SNDRV_CTL_POWER_D3hot;
+        wm8750_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
+        codec->bias_level = SND_SOC_BIAS_STANDBY;
         schedule_delayed_work(&codec->delayed_work, msecs_to_jiffies(1000));
 
         /* set the update bits */
@@ -1021,7 +1021,7 @@ static int wm8750_remove(struct platform_device *pdev)
         struct snd_soc_codec *codec = socdev->codec;
 
         if (codec->control_data)
-                wm8750_dapm_event(codec, SNDRV_CTL_POWER_D3cold);
+                wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF);
         run_delayed_work(&codec->delayed_work);
         snd_soc_free_pcms(socdev);
         snd_soc_dapm_free(socdev);
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index fb41826c4c4..9032b0c07c8 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -1274,29 +1274,29 @@ static int wm8753_mute(struct snd_soc_codec_dai *dai, int mute)
         return 0;
 }
 
-static int wm8753_dapm_event(struct snd_soc_codec *codec, int event)
+static int wm8753_set_bias_level(struct snd_soc_codec *codec,
+                                 enum snd_soc_bias_level level)
 {
         u16 pwr_reg = wm8753_read_reg_cache(codec, WM8753_PWR1) & 0xfe3e;
 
-        switch (event) {
-        case SNDRV_CTL_POWER_D0: /* full On */
+        switch (level) {
+        case SND_SOC_BIAS_ON:
                 /* set vmid to 50k and unmute dac */
                 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
                 break;
-        case SNDRV_CTL_POWER_D1: /* partial On */
-        case SNDRV_CTL_POWER_D2: /* partial On */
+        case SND_SOC_BIAS_PREPARE:
                 /* set vmid to 5k for quick power up */
                 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
                 break;
-        case SNDRV_CTL_POWER_D3hot: /* Off, with power */
+        case SND_SOC_BIAS_STANDBY:
                 /* mute dac and set vmid to 500k, enable VREF */
                 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
                 break;
-        case SNDRV_CTL_POWER_D3cold: /* Off, without power */
+        case SND_SOC_BIAS_OFF:
                 wm8753_write(codec, WM8753_PWR1, 0x0001);
                 break;
         }
-        codec->dapm_state = event;
+        codec->bias_level = level;
         return 0;
 }
 
@@ -1500,7 +1500,7 @@ static void wm8753_work(struct work_struct *work)
 {
         struct snd_soc_codec *codec =
                 container_of(work, struct snd_soc_codec, delayed_work.work);
-        wm8753_dapm_event(codec, codec->dapm_state);
+        wm8753_set_bias_level(codec, codec->bias_level);
 }
 
 static int wm8753_suspend(struct platform_device *pdev, pm_message_t state)
@@ -1512,7 +1512,7 @@ static int wm8753_suspend(struct platform_device *pdev, pm_message_t state)
         if (!codec->card)
                 return 0;
 
-        wm8753_dapm_event(codec, SNDRV_CTL_POWER_D3cold);
+        wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
         return 0;
 }
 
@@ -1537,12 +1537,12 @@ static int wm8753_resume(struct platform_device *pdev)
                 codec->hw_write(codec->control_data, data, 2);
         }
 
-        wm8753_dapm_event(codec, SNDRV_CTL_POWER_D3hot);
+        wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
         /* charge wm8753 caps */
-        if (codec->suspend_dapm_state == SNDRV_CTL_POWER_D0) {
-                wm8753_dapm_event(codec, SNDRV_CTL_POWER_D2);
-                codec->dapm_state = SNDRV_CTL_POWER_D0;
+        if (codec->suspend_bias_level == SND_SOC_BIAS_ON) {
+                wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
+                codec->bias_level = SND_SOC_BIAS_ON;
                 schedule_delayed_work(&codec->delayed_work,
                         msecs_to_jiffies(caps_charge));
         }
@@ -1563,7 +1563,7 @@ static int wm8753_init(struct snd_soc_device *socdev)
         codec->owner = THIS_MODULE;
         codec->read = wm8753_read_reg_cache;
         codec->write = wm8753_write;
-        codec->dapm_event = wm8753_dapm_event;
+        codec->set_bias_level = wm8753_set_bias_level;
         codec->dai = wm8753_dai;
         codec->num_dai = 2;
         codec->reg_cache_size = sizeof(wm8753_reg);
@@ -1584,8 +1584,8 @@ static int wm8753_init(struct snd_soc_device *socdev)
         }
 
         /* charge output caps */
-        wm8753_dapm_event(codec, SNDRV_CTL_POWER_D2);
-        codec->dapm_state = SNDRV_CTL_POWER_D3hot;
+        wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
+        codec->bias_level = SND_SOC_BIAS_STANDBY;
         schedule_delayed_work(&codec->delayed_work,
                 msecs_to_jiffies(caps_charge));
 
@@ -1792,7 +1792,7 @@ static int wm8753_remove(struct platform_device *pdev)
         struct snd_soc_codec *codec = socdev->codec;
 
         if (codec->control_data)
-                wm8753_dapm_event(codec, SNDRV_CTL_POWER_D3cold);
+                wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
         run_delayed_work(&codec->delayed_work);
         snd_soc_free_pcms(socdev);
         snd_soc_dapm_free(socdev);
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index 89efe40c7c3..e26cfcf0b4f 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -571,23 +571,23 @@ struct snd_soc_codec_dai wm9712_dai[] = {
 };
 EXPORT_SYMBOL_GPL(wm9712_dai);
 
-static int wm9712_dapm_event(struct snd_soc_codec *codec, int event)
+static int wm9712_set_bias_level(struct snd_soc_codec *codec,
+                                 enum snd_soc_bias_level level)
 {
-        switch (event) {
-        case SNDRV_CTL_POWER_D0: /* full On */
-        case SNDRV_CTL_POWER_D1: /* partial On */
-        case SNDRV_CTL_POWER_D2: /* partial On */
+        switch (level) {
+        case SND_SOC_BIAS_ON:
+        case SND_SOC_BIAS_PREPARE:
                 break;
-        case SNDRV_CTL_POWER_D3hot: /* Off, with power */
+        case SND_SOC_BIAS_STANDBY:
                 ac97_write(codec, AC97_POWERDOWN, 0x0000);
                 break;
-        case SNDRV_CTL_POWER_D3cold: /* Off, without power */
+        case SND_SOC_BIAS_OFF:
                 /* disable everything including AC link */
                 ac97_write(codec, AC97_EXTENDED_MSTATUS, 0xffff);
                 ac97_write(codec, AC97_POWERDOWN, 0xffff);
                 break;
         }
-        codec->dapm_state = event;
+        codec->bias_level = level;
         return 0;
 }
 
@@ -615,7 +615,7 @@ static int wm9712_soc_suspend(struct platform_device *pdev,
         struct snd_soc_device *socdev = platform_get_drvdata(pdev);
         struct snd_soc_codec *codec = socdev->codec;
 
-        wm9712_dapm_event(codec, SNDRV_CTL_POWER_D3cold);
+        wm9712_set_bias_level(codec, SND_SOC_BIAS_OFF);
         return 0;
 }
 
@@ -632,7 +632,7 @@ static int wm9712_soc_resume(struct platform_device *pdev)
                 return ret;
         }
 
-        wm9712_dapm_event(codec, SNDRV_CTL_POWER_D3hot);
+        wm9712_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
         if (ret == 0) {
                 /* Sync reg_cache with the hardware after cold reset */
@@ -644,8 +644,8 @@ static int wm9712_soc_resume(struct platform_device *pdev)
                 }
         }
 
-        if (codec->suspend_dapm_state == SNDRV_CTL_POWER_D0)
-                wm9712_dapm_event(codec, SNDRV_CTL_POWER_D0);
+        if (codec->suspend_bias_level == SND_SOC_BIAS_ON)
+                wm9712_set_bias_level(codec, SND_SOC_BIAS_ON);
 
         return ret;
 }
@@ -679,7 +679,7 @@ static int wm9712_soc_probe(struct platform_device *pdev)
         codec->num_dai = ARRAY_SIZE(wm9712_dai);
         codec->write = ac97_write;
         codec->read = ac97_read;
-        codec->dapm_event = wm9712_dapm_event;
+        codec->set_bias_level = wm9712_set_bias_level;
         INIT_LIST_HEAD(&codec->dapm_widgets);
         INIT_LIST_HEAD(&codec->dapm_paths);
 
@@ -703,7 +703,7 @@ static int wm9712_soc_probe(struct platform_device *pdev)
         /* set alc mux to none */
         ac97_write(codec, AC97_VIDEO, ac97_read(codec, AC97_VIDEO) | 0x3000);
 
-        wm9712_dapm_event(codec, SNDRV_CTL_POWER_D3hot);
+        wm9712_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
         wm9712_add_controls(codec);
         wm9712_add_widgets(codec);
         ret = snd_soc_register_card(socdev);
diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index 9e6b2fd7262..4863636e9d5 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -1094,33 +1094,33 @@ int wm9713_reset(struct snd_soc_codec *codec, int try_warm)
 }
 EXPORT_SYMBOL_GPL(wm9713_reset);
 
-static int wm9713_dapm_event(struct snd_soc_codec *codec, int event)
+static int wm9713_set_bias_level(struct snd_soc_codec *codec,
+                                 enum snd_soc_bias_level level)
 {
         u16 reg;
 
-        switch (event) {
-        case SNDRV_CTL_POWER_D0: /* full On */
+        switch (level) {
+        case SND_SOC_BIAS_ON:
                 /* enable thermal shutdown */
                 reg = ac97_read(codec, AC97_EXTENDED_MID) & 0x1bff;
                 ac97_write(codec, AC97_EXTENDED_MID, reg);
                 break;
-        case SNDRV_CTL_POWER_D1: /* partial On */
-        case SNDRV_CTL_POWER_D2: /* partial On */
+        case SND_SOC_BIAS_PREPARE:
                 break;
-        case SNDRV_CTL_POWER_D3hot: /* Off, with power */
+        case SND_SOC_BIAS_STANDBY:
                 /* enable master bias and vmid */
                 reg = ac97_read(codec, AC97_EXTENDED_MID) & 0x3bff;
                 ac97_write(codec, AC97_EXTENDED_MID, reg);
                 ac97_write(codec, AC97_POWERDOWN, 0x0000);
                 break;
-        case SNDRV_CTL_POWER_D3cold: /* Off, without power */
+        case SND_SOC_BIAS_OFF:
                 /* disable everything including AC link */
                 ac97_write(codec, AC97_EXTENDED_MID, 0xffff);
                 ac97_write(codec, AC97_EXTENDED_MSTATUS, 0xffff);
                 ac97_write(codec, AC97_POWERDOWN, 0xffff);
                 break;
         }
-        codec->dapm_state = event;
+        codec->bias_level = level;
         return 0;
 }
 
@@ -1157,7 +1157,7 @@ static int wm9713_soc_resume(struct platform_device *pdev)
                 return ret;
         }
 
-        wm9713_dapm_event(codec, SNDRV_CTL_POWER_D3hot);
+        wm9713_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
         /* do we need to re-start the PLL ? */
         if (wm9713->pll_out)
@@ -1173,8 +1173,8 @@ static int wm9713_soc_resume(struct platform_device *pdev)
                 }
         }
 
-        if (codec->suspend_dapm_state == SNDRV_CTL_POWER_D0)
-                wm9713_dapm_event(codec, SNDRV_CTL_POWER_D0);
+        if (codec->suspend_bias_level == SND_SOC_BIAS_ON)
+                wm9713_set_bias_level(codec, SND_SOC_BIAS_ON);
 
         return ret;
 }
@@ -1213,7 +1213,7 @@ static int wm9713_soc_probe(struct platform_device *pdev)
         codec->num_dai = ARRAY_SIZE(wm9713_dai);
         codec->write = ac97_write;
         codec->read = ac97_read;
-        codec->dapm_event = wm9713_dapm_event;
+        codec->set_bias_level = wm9713_set_bias_level;
         INIT_LIST_HEAD(&codec->dapm_widgets);
         INIT_LIST_HEAD(&codec->dapm_paths);
 
@@ -1235,7 +1235,7 @@ static int wm9713_soc_probe(struct platform_device *pdev)
                 goto reset_err;
         }
 
-        wm9713_dapm_event(codec, SNDRV_CTL_POWER_D3hot);
+        wm9713_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
         /* unmute the adc - move to kcontrol */
         reg = ac97_read(codec, AC97_CD) & 0x7fff;
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 0318d8abe3e..a05b3450aee 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -283,12 +283,12 @@ static void close_delayed_work(struct work_struct *work)
                 /* are we waiting on this codec DAI stream */
                 if (codec_dai->pop_wait == 1) {
 
-                        /* power down the codec to D1 if no longer active */
+                        /* Reduce power if no longer active */
                         if (codec->active == 0) {
                                 dbg("pop wq D1 %s %s\n", codec->name,
                                         codec_dai->playback.stream_name);
-                                snd_soc_dapm_device_event(socdev,
-                                        SNDRV_CTL_POWER_D1);
+                                snd_soc_dapm_set_bias_level(socdev,
+                                        SND_SOC_BIAS_PREPARE);
                         }
 
                         codec_dai->pop_wait = 0;
@@ -296,12 +296,12 @@ static void close_delayed_work(struct work_struct *work)
                                 codec_dai->playback.stream_name,
                                 SND_SOC_DAPM_STREAM_STOP);
 
-                        /* power down the codec power domain if no longer active */
+                        /* Fall into standby if no longer active */
                         if (codec->active == 0) {
                                 dbg("pop wq D3 %s %s\n", codec->name,
                                         codec_dai->playback.stream_name);
-                                snd_soc_dapm_device_event(socdev,
-                                        SNDRV_CTL_POWER_D3hot);
+                                snd_soc_dapm_set_bias_level(socdev,
+                                        SND_SOC_BIAS_STANDBY);
                         }
                 }
         }
@@ -361,8 +361,8 @@ static int soc_codec_close(struct snd_pcm_substream *substream)
                         SND_SOC_DAPM_STREAM_STOP);
 
                 if (codec->active == 0 && codec_dai->pop_wait == 0)
-                        snd_soc_dapm_device_event(socdev,
-                                                SNDRV_CTL_POWER_D3hot);
+                        snd_soc_dapm_set_bias_level(socdev,
+                                                SND_SOC_BIAS_STANDBY);
         }
 
         mutex_unlock(&pcm_mutex);
@@ -435,9 +435,10 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
                 }
         } else {
                 /* no delayed work - do we need to power up codec */
-                if (codec->dapm_state != SNDRV_CTL_POWER_D0) {
+                if (codec->bias_level != SND_SOC_BIAS_ON) {
 
-                        snd_soc_dapm_device_event(socdev,  SNDRV_CTL_POWER_D1);
+                        snd_soc_dapm_set_bias_level(socdev,
+                                                    SND_SOC_BIAS_PREPARE);
 
                         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
                                 snd_soc_dapm_stream_event(codec,
@@ -448,7 +449,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
                                         codec_dai->capture.stream_name,
                                         SND_SOC_DAPM_STREAM_START);
 
-                        snd_soc_dapm_device_event(socdev, SNDRV_CTL_POWER_D0);
+                        snd_soc_dapm_set_bias_level(socdev, SND_SOC_BIAS_ON);
                         if (codec_dai->dai_ops.digital_mute)
                                 codec_dai->dai_ops.digital_mute(codec_dai, 0);
 
@@ -658,7 +659,7 @@ static int soc_suspend(struct platform_device *pdev, pm_message_t state)
 
         /* close any waiting streams and save state */
         run_delayed_work(&socdev->delayed_work);
-        codec->suspend_dapm_state = codec->dapm_state;
+        codec->suspend_bias_level = codec->bias_level;
 
         for(i = 0; i < codec->num_dai; i++) {
                 char *stream = codec->dai[i].playback.stream_name;
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 8a3192bcee7..728f3ac2f30 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -763,21 +763,18 @@ static ssize_t dapm_widget_show(struct device *dev,
                 }
         }
 
-        switch(codec->dapm_state){
-        case SNDRV_CTL_POWER_D0:
-                state = "D0";
+        switch (codec->bias_level) {
+        case SND_SOC_BIAS_ON:
+                state = "On";
                 break;
-        case SNDRV_CTL_POWER_D1:
-                state = "D1";
+        case SND_SOC_BIAS_PREPARE:
+                state = "Prepare";
                 break;
-        case SNDRV_CTL_POWER_D2:
-                state = "D2";
+        case SND_SOC_BIAS_STANDBY:
+                state = "Standby";
                 break;
-        case SNDRV_CTL_POWER_D3hot:
-                state = "D3hot";
-                break;
-        case SNDRV_CTL_POWER_D3cold:
-                state = "D3cold";
+        case SND_SOC_BIAS_OFF:
+                state = "Off";
                 break;
         }
         count += sprintf(buf + count, "PM State: %s\n", state);
@@ -1358,27 +1355,28 @@ int snd_soc_dapm_stream_event(struct snd_soc_codec *codec,
 EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event);
 
 /**
- * snd_soc_dapm_device_event - send a device event to the dapm core
+ * snd_soc_dapm_set_bias_level - set the bias level for the system
  * @socdev: audio device
- * @event: device event
+ * @level: level to configure
  *
- * Sends a device event to the dapm core. The core then makes any
- * necessary machine or codec power changes..
+ * Configure the bias (power) levels for the SoC audio device.
  *
  * Returns 0 for success else error.
  */
-int snd_soc_dapm_device_event(struct snd_soc_device *socdev, int event)
+int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev,
+                                enum snd_soc_bias_level level)
 {
         struct snd_soc_codec *codec = socdev->codec;
         struct snd_soc_machine *machine = socdev->machine;
+        int ret = 0;
 
-        if (machine->dapm_event)
-                machine->dapm_event(machine, event);
-        if (codec->dapm_event)
-                codec->dapm_event(codec, event);
-        return 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;
 }
-EXPORT_SYMBOL_GPL(snd_soc_dapm_device_event);
 
 /**
  * snd_soc_dapm_set_endpoint - set audio endpoint status