ASoC: Factor out DAPM sequence execution

Lump the list walk into a single function, and pull in the power
application too so we can do some further refactoring. Pure code
motion.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 61 insertions, 61 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 1b38e2195596..257d4f15e00e 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -707,55 +707,6 @@ 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)
-{
-        int ret;
-
-        switch (w->id) {
-        case snd_soc_dapm_pre:
-                if (!w->event)
-                        return 0;
-
-                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;
-                }
-                return 0;
-
-        case snd_soc_dapm_post:
-                if (!w->event)
-                        return 0;
-
-                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;
-                }
-                return 0;
-
-        default:
-                return dapm_generic_apply_power(w);
-        }
-}
-
 static int dapm_seq_compare(struct snd_soc_dapm_widget *a,
                             struct snd_soc_dapm_widget *b,
                             int sort[])
@@ -782,6 +733,65 @@ static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget,
         list_add_tail(&new_widget->power_list, list);
 }
 
+/* Apply a DAPM power sequence */
+static void dapm_seq_run(struct snd_soc_codec *codec, struct list_head *list,
+                         int event)
+{
+        struct snd_soc_dapm_widget *w;
+        int ret;
+
+        list_for_each_entry(w, list, power_list) {
+                switch (w->id) {
+                case snd_soc_dapm_pre:
+                        if (!w->event)
+                                list_for_each_entry_continue(w, list,
+                                                             power_list);
+
+                        if (event == SND_SOC_DAPM_STREAM_START) {
+                                ret = w->event(w,
+                                               NULL, SND_SOC_DAPM_PRE_PMU);
+                                if (ret < 0)
+                                        pr_err("PRE widget failed: %d\n",
+                                               ret);
+                        } else if (event == SND_SOC_DAPM_STREAM_STOP) {
+                                ret = w->event(w,
+                                               NULL, SND_SOC_DAPM_PRE_PMD);
+                                if (ret < 0)
+                                        pr_err("PRE widget failed: %d\n",
+                                               ret);
+                        }
+                        break;
+
+                case snd_soc_dapm_post:
+                        if (!w->event)
+                                list_for_each_entry_continue(w, list,
+                                                             power_list);
+
+                        if (event == SND_SOC_DAPM_STREAM_START) {
+                                ret = w->event(w,
+                                               NULL, SND_SOC_DAPM_POST_PMU);
+                                if (ret < 0)
+                                        pr_err("POST widget failed: %d\n",
+                                               ret);
+                        } else if (event == SND_SOC_DAPM_STREAM_STOP) {
+                                ret = w->event(w,
+                                               NULL, SND_SOC_DAPM_POST_PMD);
+                                if (ret < 0)
+                                        pr_err("POST widget failed: %d\n",
+                                               ret);
+                        }
+                        break;
+
+                default:
+                        ret = dapm_generic_apply_power(w);
+                        if (ret < 0)
+                                pr_err("Failed to apply widget power: %d\n",
+                                       ret);
+                        break;
+                }
+        }
+}
+
 /*
  * Scan each dapm widget for complete audio path.
  * A complete path is a route that has valid endpoints i.e.:-
@@ -847,20 +857,10 @@ static int dapm_power_widgets(struct snd_soc_codec *codec, int event)
         }
 
         /* Power down widgets first; try to avoid amplifying pops. */
-        list_for_each_entry(w, &codec->down_list, power_list) {
-                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, &codec->down_list, event);
 
         /* Now power up. */
-        list_for_each_entry(w, &codec->up_list, power_list) {
-                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, &codec->up_list, event);
 
         /* If we just powered the last thing off drop to standby bias */
         if (codec->bias_level == SND_SOC_BIAS_PREPARE && !sys_power) {