1 files changed, 408 insertions, 91 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 21c69074aa17..f79711b9fa5b 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -37,6 +37,7 @@
 #include <linux/bitops.h>
 #include <linux/platform_device.h>
 #include <linux/jiffies.h>
+#include <linux/debugfs.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -52,19 +53,41 @@
 
 /* dapm power sequences - make this per codec in the future */
 static int dapm_up_seq[] = {
-        snd_soc_dapm_pre, snd_soc_dapm_supply, snd_soc_dapm_micbias,
-        snd_soc_dapm_mic, snd_soc_dapm_mux, snd_soc_dapm_value_mux,
-        snd_soc_dapm_dac, snd_soc_dapm_mixer, snd_soc_dapm_mixer_named_ctl,
-        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_named_ctl, snd_soc_dapm_mixer,
-        snd_soc_dapm_dac, snd_soc_dapm_mic, snd_soc_dapm_micbias,
-        snd_soc_dapm_mux, snd_soc_dapm_value_mux, snd_soc_dapm_supply,
-        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 void pop_wait(u32 pop_time)
@@ -130,8 +153,12 @@ static int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev,
 
         if (card->set_bias_level)
                 ret = card->set_bias_level(card, level);
-        if (ret == 0 && codec->set_bias_level)
-                ret = codec->set_bias_level(codec, level);
+        if (ret == 0) {
+                if (codec->set_bias_level)
+                        ret = codec->set_bias_level(codec, level);
+                else
+                        codec->bias_level = level;
+        }
 
         return ret;
 }
@@ -206,6 +233,8 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
         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 */
@@ -268,7 +297,7 @@ 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 */
@@ -479,8 +508,14 @@ static int is_connected_output_ep(struct snd_soc_dapm_widget *widget)
         if (widget->id == snd_soc_dapm_supply)
                 return 0;
 
-        if (widget->id == snd_soc_dapm_adc && widget->active)
-                return 1;
+        switch (widget->id) {
+        case snd_soc_dapm_adc:
+        case snd_soc_dapm_aif_out:
+                if (widget->active)
+                        return 1;
+        default:
+                break;
+        }
 
         if (widget->connected) {
                 /* connected pin ? */
@@ -519,8 +554,14 @@ static int is_connected_input_ep(struct snd_soc_dapm_widget *widget)
                 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 1;
+        default:
+                break;
+        }
 
         if (widget->connected) {
                 /* connected pin ? */
@@ -689,53 +730,211 @@ static int dapm_supply_check_power(struct snd_soc_dapm_widget *w)
         return power;
 }
 
-/*
- * Scan a single DAPM widget for a complete audio path and update the
- * power status appropriately.
- */
-static int dapm_power_widget(struct snd_soc_codec *codec, int event,
-                             struct snd_soc_dapm_widget *w)
+static int dapm_seq_compare(struct snd_soc_dapm_widget *a,
+                            struct snd_soc_dapm_widget *b,
+                            int sort[])
 {
-        int ret;
+        if (sort[a->id] != sort[b->id])
+                return sort[a->id] - sort[b->id];
+        if (a->reg != b->reg)
+                return a->reg - b->reg;
 
-        switch (w->id) {
-        case snd_soc_dapm_pre:
-                if (!w->event)
-                        return 0;
+        return 0;
+}
 
-                if (event == SND_SOC_DAPM_STREAM_START) {
-                        ret = w->event(w,
-                                       NULL, SND_SOC_DAPM_PRE_PMU);
+/* 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)
-                                return ret;
-                } else if (event == SND_SOC_DAPM_STREAM_STOP) {
-                        ret = w->event(w,
-                                       NULL, SND_SOC_DAPM_PRE_PMD);
+                                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)
-                                return ret;
+                                pr_err("%s: pre event failed: %d\n",
+                                       w->name, ret);
                 }
-                return 0;
 
-        case snd_soc_dapm_post:
-                if (!w->event)
-                        return 0;
+                /* Lower PGA volume to reduce pops */
+                if (w->id == snd_soc_dapm_pga && !w->power)
+                        dapm_set_pga(w, w->power);
+        }
 
-                if (event == SND_SOC_DAPM_STREAM_START) {
+        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) {
+                /* Raise PGA volume to reduce pops */
+                if (w->id == snd_soc_dapm_pga && w->power)
+                        dapm_set_pga(w, w->power);
+
+                /* 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)
-                                return ret;
-                } else if (event == SND_SOC_DAPM_STREAM_STOP) {
-                        ret = w->event(w,
-                                       NULL, SND_SOC_DAPM_POST_PMD);
+                                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)
-                                return ret;
+                                pr_err("%s: post event failed: %d\n",
+                                       w->name, ret);
                 }
-                return 0;
+        }
+}
 
-        default:
-                return dapm_generic_apply_power(w);
+/* 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);
 }
 
 /*
@@ -751,23 +950,22 @@ 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;
+        LIST_HEAD(up_list);
+        LIST_HEAD(down_list);
         int ret = 0;
-        int i, power;
+        int power;
         int sys_power = 0;
 
-        INIT_LIST_HEAD(&codec->up_list);
-        INIT_LIST_HEAD(&codec->down_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:
-                        list_add_tail(&codec->down_list, &w->power_list);
+                        dapm_seq_insert(w, &down_list, dapm_down_seq);
                         break;
                 case snd_soc_dapm_post:
-                        list_add_tail(&codec->up_list, &w->power_list);
+                        dapm_seq_insert(w, &up_list, dapm_up_seq);
                         break;
 
                 default:
@@ -782,16 +980,31 @@ static int dapm_power_widgets(struct snd_soc_codec *codec, int event)
                                 continue;
 
                         if (power)
-                                list_add_tail(&w->power_list, &codec->up_list);
+                                dapm_seq_insert(w, &up_list, dapm_up_seq);
                         else
-                                list_add_tail(&w->power_list,
-                                              &codec->down_list);
+                                dapm_seq_insert(w, &down_list, dapm_down_seq);
 
                         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_NOP:
+                        sys_power = codec->bias_level != SND_SOC_BIAS_STANDBY;
+                default:
+                        break;
+                }
+        }
+
         /* 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)) {
@@ -802,32 +1015,10 @@ static int dapm_power_widgets(struct snd_soc_codec *codec, int event)
         }
 
         /* Power down widgets first; try to avoid amplifying pops. */
-        for (i = 0; i < ARRAY_SIZE(dapm_down_seq); i++) {
-                list_for_each_entry(w, &codec->down_list, power_list) {
-                        /* is widget in stream order */
-                        if (w->id != dapm_down_seq[i])
-                                continue;
-
-                        ret = dapm_power_widget(codec, event, w);
-                        if (ret != 0)
-                                pr_err("Failed to power down %s: %d\n",
-                                       w->name, ret);
-                }
-        }
+        dapm_seq_run(codec, &down_list, event, dapm_down_seq);
 
         /* Now power up. */
-        for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) {
-                list_for_each_entry(w, &codec->up_list, power_list) {
-                        /* is widget in stream order */
-                        if (w->id != dapm_up_seq[i])
-                                continue;
-
-                        ret = dapm_power_widget(codec, event, w);
-                        if (ret != 0)
-                                pr_err("Failed to power up %s: %d\n",
-                                       w->name, ret);
-                }
-        }
+        dapm_seq_run(codec, &up_list, event, dapm_up_seq);
 
         /* If we just powered the last thing off drop to standby bias */
         if (codec->bias_level == SND_SOC_BIAS_PREPARE && !sys_power) {
@@ -845,6 +1036,9 @@ static int dapm_power_widgets(struct snd_soc_codec *codec, int event)
                         pr_err("Failed to apply active bias: %d\n", ret);
         }
 
+        pop_dbg(codec->pop_time, "DAPM sequencing finished, waiting %dms\n",
+                codec->pop_time);
+
         return 0;
 }
 
@@ -881,6 +1075,8 @@ static void dbg_dump_dapm(struct snd_soc_codec* codec, const char *action)
                 case snd_soc_dapm_mixer:
                 case snd_soc_dapm_mixer_named_ctl:
                 case snd_soc_dapm_supply:
+                case snd_soc_dapm_aif_in:
+                case snd_soc_dapm_aif_out:
                         if (w->name) {
                                 in = is_connected_input_ep(w);
                                 dapm_clear_walk(w->codec);
@@ -906,6 +1102,93 @@ static void dbg_dump_dapm(struct snd_soc_codec* codec, const char *action)
 }
 #endif
 
+#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\n",
+                       w->name, w->power ? "On" : "Off", in, out);
+
+        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->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->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;
+}
+
+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 dentry *d;
+
+        if (!codec->debugfs_dapm)
+                return;
+
+        list_for_each_entry(w, &codec->dapm_widgets, list) {
+                if (!w->name)
+                        continue;
+
+                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,
@@ -1138,8 +1421,8 @@ 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) {
@@ -1171,6 +1454,8 @@ static int snd_soc_dapm_add_route(struct snd_soc_codec *codec,
         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);
@@ -1273,9 +1558,11 @@ int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec)
                         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:
@@ -1372,7 +1659,7 @@ 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 ret;
 
         val = (ucontrol->value.integer.value[0] & mask);
@@ -1436,7 +1723,7 @@ 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)
                 ;
@@ -1464,8 +1751,8 @@ 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;
+        unsigned int mask, bitmask;
         int ret = 0;
 
         for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
@@ -1523,7 +1810,7 @@ int snd_soc_dapm_get_value_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 reg_val, val, mux;
+        unsigned int reg_val, val, mux;
 
         reg_val = snd_soc_read(widget->codec, e->reg);
         val = (reg_val >> e->shift_l) & e->mask;
@@ -1563,8 +1850,8 @@ int snd_soc_dapm_put_value_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;
+        unsigned int val, mux;
+        unsigned int mask;
         int ret = 0;
 
         if (ucontrol->value.enumerated.item[0] > e->max - 1)
@@ -1880,6 +2167,36 @@ void snd_soc_dapm_free(struct snd_soc_device *socdev)
 }
 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, lrg@slimlogic.co.uk");
 MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC");