ALSA: hda - Add a generic fixup callback for Realtek codecs

Add a generic callback function for fixup elements.  This can be used
to do some unusual things like overriding the AMP cache, etc.

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

1 files changed, 9 insertions, 0 deletions

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 564e6c136ddd..f10c613c530f 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1681,6 +1681,8 @@ struct alc_fixup {
         unsigned int sku;
         const struct alc_pincfg *pins;
         const struct hda_verb *verbs;
+        void (*func)(struct hda_codec *codec, const struct alc_fixup *fix,
+                     int pre_init);
 };
 
 static void alc_pick_fixup(struct hda_codec *codec,
@@ -1720,6 +1722,13 @@ static void alc_pick_fixup(struct hda_codec *codec,
 #endif
                 add_verb(codec->spec, fix->verbs);
         }
+        if (fix->func) {
+#ifdef CONFIG_SND_DEBUG_VERBOSE
+                snd_printdd(KERN_INFO "hda_codec: %s: Apply fix-func for %s\n",
+                            codec->chip_name, quirk->name);
+#endif
+                fix->func(codec, fix, pre_init);
+        }
 }
 
 static int alc_read_coef_idx(struct hda_codec *codec,