ALSA: hda - Limit codec-verb retry to limited hardwares

The reset of a BUS controller during operations is somehow risky and
shouldn't be done inevitably for devices that have apparently no such
codec-communication problems.

This patch adds the check of the hardware and limits the bus-reset
capability.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index f5fa5d1f223c..cad79efaabc9 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -624,6 +624,9 @@ struct hda_bus {
 
         /* misc op flags */
         unsigned int needs_damn_long_delay :1;
+        unsigned int allow_bus_reset:1; /* allow bus reset at fatal error */
+        unsigned int sync_write:1;      /* sync after verb write */
+        /* status for codec/controller */
         unsigned int shutdown :1;       /* being unloaded */
         unsigned int rirb_error:1;      /* error in codec communication */
         unsigned int response_reset:1;  /* controller was reset */