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>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/sound/wm8903.h b/include/sound/wm8903.h
index 49bb1a844bf..b4a0db2307e 100644
--- a/include/sound/wm8903.h
+++ b/include/sound/wm8903.h
@@ -241,6 +241,8 @@ struct wm8903_platform_data {
          */
         u16 micdet_cfg;
 
+        int micdet_delay;      /* Delay after microphone detection (ms) */
+
         u32 gpio_cfg[5];       /* Default register values for GPIO pin mux */
 };