ALSA: ctxfi - Optimize the native timer handling using wc counter

Optimize the timer update routine to look up wall clock once instead of
checking the position of each stream at each timer update.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/sound/pci/ctxfi/cthardware.h b/sound/pci/ctxfi/cthardware.h
index 35350cf9d2f2..8f11644ddc92 100644
--- a/sound/pci/ctxfi/cthardware.h
+++ b/sound/pci/ctxfi/cthardware.h
@@ -147,6 +147,7 @@ struct hw {
 
         int (*set_timer_irq)(struct hw *hw, int enable);
         int (*set_timer_tick)(struct hw *hw, unsigned int tick);
+        unsigned int (*get_wc)(struct hw *hw);
 
         void (*irq_callback)(void *data, unsigned int bit);
         void *irq_callback_data;