diff --git a/sound/soc/codecs/wm8915.c b/sound/soc/codecs/wm8915.c
index eecd2c116122..a1d8618f7e2e 100644
--- a/sound/soc/codecs/wm8915.c
+++ b/sound/soc/codecs/wm8915.c
@@ -2009,6 +2009,7 @@ static int wm8915_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
 			  unsigned int Fref, unsigned int Fout)
 {
 	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
+	struct i2c_client *i2c = to_i2c_client(codec->dev);
 	struct _fll_div fll_div;
 	unsigned long timeout;
 	int ret, reg;
@@ -2095,7 +2096,18 @@ static int wm8915_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
 	else
 		timeout = msecs_to_jiffies(2);
 
-	wait_for_completion_timeout(&wm8915->fll_lock, timeout);
+	/* Allow substantially longer if we've actually got the IRQ */
+	if (i2c->irq)
+		timeout *= 1000;
+
+	ret = wait_for_completion_timeout(&wm8915->fll_lock, timeout);
+
+	if (ret == 0 && i2c->irq) {
+		dev_err(codec->dev, "Timed out waiting for FLL\n");
+		ret = -ETIMEDOUT;
+	} else {
+		ret = 0;
+	}
 
 	dev_dbg(codec->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout);
 
@@ -2103,7 +2115,7 @@ static int wm8915_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
 	wm8915->fll_fout = Fout;
 	wm8915->fll_src = source;
 
-	return 0;
+	return ret;
 }
 
 #ifdef CONFIG_GPIOLIB