ALSA: hda - Disable tigger at pin-sensing on AD codecs

Analog Device codecs seem to have problems with the triggering of
pin-sensing although their pincaps give the trigger requirements.
Some reported that constant CPU load on HP laptops with AD codecs.

For avoiding this regression, add a flag to codec struct to notify
explicitly that the codec doesn't suppot the trigger at pin-sensing.

Tested-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 6 insertions, 4 deletions

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 950ee5cfcacf..f98b47cd6cfb 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1327,11 +1327,13 @@ EXPORT_SYMBOL_HDA(snd_hda_query_pin_caps);
  */
 u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid)
 {
-        u32 pincap = snd_hda_query_pin_caps(codec, nid);
-
-        if (pincap & AC_PINCAP_TRIG_REQ) /* need trigger? */
-                snd_hda_codec_read(codec, nid, 0, AC_VERB_SET_PIN_SENSE, 0);
+        u32 pincap;
 
+        if (!codec->no_trigger_sense) {
+                pincap = snd_hda_query_pin_caps(codec, nid);
+                if (pincap & AC_PINCAP_TRIG_REQ) /* need trigger? */
+                        snd_hda_codec_read(codec, nid, 0, AC_VERB_SET_PIN_SENSE, 0);
+        }
         return snd_hda_codec_read(codec, nid, 0,
                                   AC_VERB_GET_PIN_SENSE, 0);
 }