1 files changed, 30 insertions, 1 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 8c8b291320a8..fefb6c44fc81 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -441,7 +441,9 @@ static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget)
         switch (snd_power_get_state(codec->card)) {
         case SNDRV_CTL_POWER_D3hot:
         case SNDRV_CTL_POWER_D3cold:
-                return 0;
+                if (widget->ignore_suspend)
+                        pr_debug("%s ignoring suspend\n", widget->name);
+                return widget->ignore_suspend;
         default:
                 return 1;
         }
@@ -2137,6 +2139,33 @@ int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, const 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
  *