ASoC: Implement interrupt driven microphone detection for WM8903
Support use of the WM8903 IRQ for reporting of microphone presence
and short detection.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/sound/soc/codecs/wm8903.h b/sound/soc/codecs/wm8903.h
index 8f19a24..ce384a2 100644
--- a/sound/soc/codecs/wm8903.h
+++ b/sound/soc/codecs/wm8903.h
@@ -18,6 +18,10 @@
extern struct snd_soc_dai wm8903_dai;
extern struct snd_soc_codec_device soc_codec_dev_wm8903;
+extern int wm8903_mic_detect(struct snd_soc_codec *codec,
+ struct snd_soc_jack *jack,
+ int det, int shrt);
+
#define WM8903_MCLK_DIV_2 1
#define WM8903_CLK_SYS 2
#define WM8903_BCLK 3