ALSA: Reduce boilerplate for new jack types

Use a lookup table rather than explicit code to map input subsystem jack
types into ASoC ones, implemented as suggested by Takashi Iwai.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/sound/jack.h b/include/sound/jack.h
index 2e0315cdd0d6..85266a2f5c6f 100644
--- a/include/sound/jack.h
+++ b/include/sound/jack.h
@@ -30,6 +30,9 @@ struct input_dev;
 /**
  * Jack types which can be reported.  These values are used as a
  * bitmask.
+ *
+ * Note that this must be kept in sync with the lookup table in
+ * sound/core/jack.c.
  */
 enum snd_jack_types {
         SND_JACK_HEADPHONE      = 0x0001,