[ALSA] switching rate in STAC9460 codec of Prodigy192

* support for switching rate in STAC9460 - using set_rate_val of the akm
infrastructure
* listing all STAC9460 registers in proc
* disabling mpu401 device for Prodigy192 - otherwise the currently
  flawed mpu401 code hangs kernel when opening the midi device
* removing old unused commented-out code

Signed-off-by: Pavel Hofman <dustin@seznam.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

1 files changed, 2 insertions, 0 deletions

diff --git a/sound/pci/ice1712/ice1712.h b/sound/pci/ice1712/ice1712.h
index 3c3cac3dc08b..4dc576af506f 100644
--- a/sound/pci/ice1712/ice1712.h
+++ b/sound/pci/ice1712/ice1712.h
@@ -399,6 +399,8 @@ struct snd_ice1712 {
                 } juli;
                 struct {
                         struct ak4114 *ak4114;
+                        /* rate change needs atomic mute/unmute of all dacs*/
+                        struct mutex mute_mutex;
                 } prodigy192;
                 struct {
                         struct {