ASoC: Warn on low WM8994 AIFCLK

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
git-mirror · Apr 26, 2010 · 5e5e2be · 5e5e2be
1 parent 759512f
commit 5e5e2be
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
@@ -1769,6 +1769,11 @@ static int configure_aif_clock(struct snd_soc_codec *codec, int aif)
 		dev_dbg(codec->dev, "Dividing AIF%d clock to %dHz\n",
 			aif + 1, rate);
 	}
+
+	if (rate && rate < 3000000)
+		dev_warn(codec->dev, "AIF%dCLK is %dHz, should be >=3MHz for optimal performance\n",
+			 aif + 1, rate);
+
 	wm8994->aifclk[aif] = rate;
 
 	snd_soc_update_bits(codec, WM8994_AIF1_CLOCKING_1 + offset,