ALSA: hda - Move low level functions to hda_controller

Share more code from hda_intel.  This moves the link control and
initialization to hda_controller.  The code will also be used by an
hda platform driver.

Signed-off-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_controller.h

@@ -50,11 +50,14 @@ void azx_free_stream_pages(struct azx *chip);
 /*
  * CORB / RIRB interface
  */
-void azx_init_cmd_io(struct azx *chip);
-void azx_free_cmd_io(struct azx *chip);
 void azx_update_rirb(struct azx *chip);
 int azx_send_cmd(struct hda_bus *bus, unsigned int val);
 unsigned int azx_get_response(struct hda_bus *bus,
 			      unsigned int addr);
 
+/* Low level azx interface */
+void azx_init_chip(struct azx *chip, int full_reset);
+void azx_stop_chip(struct azx *chip);
+void azx_enter_link_reset(struct azx *chip);
+
 #endif /* __SOUND_HDA_CONTROLLER_H */