ASoC: Update WM5100 accessory detection for revision A

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/wm5100.c b/sound/soc/codecs/wm5100.c
index 02c011d..5d88c99 100644
--- a/sound/soc/codecs/wm5100.c
+++ b/sound/soc/codecs/wm5100.c
@@ -2132,6 +2132,9 @@
 			    WM5100_ACCDET_SRC,
 			    (mode->bias << WM5100_ACCDET_BIAS_SRC_SHIFT) |
 			    mode->micd_src << WM5100_ACCDET_SRC_SHIFT);
+	snd_soc_update_bits(codec, WM5100_MISC_CONTROL,
+			    WM5100_HPCOM_SRC,
+			    mode->micd_src << WM5100_HPCOM_SRC_SHIFT);
 
 	wm5100->jack_mode = the_mode;