ASoC: wm8994: Fix AIF2ADC power down

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 6c1fe3a..2de12eb 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -1144,7 +1144,7 @@
 		snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5,
 				    WM8994_AIF2DACL_ENA |
 				    WM8994_AIF2DACR_ENA, 0);
-		snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5,
+		snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_4,
 				    WM8994_AIF2ADCL_ENA |
 				    WM8994_AIF2ADCR_ENA, 0);