ALSA: hda/realtek - Add model=fixup not to apply fix-ups

If anyone wants to debug the driver and avoid the existing fix-ups,
pass model=nofixup option.  Then the driver will skip to pick up the
fixup list.

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

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 4ac1e38..3c6f5b5 100644 (file)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1556,6 +1556,13 @@ static void alc_pick_fixup(struct hda_codec *codec,
        int id = -1;
        const char *name = NULL;
 
+       /* when model=nofixup is given, don't pick up any fixups */
+       if (codec->modelname && !strcmp(codec->modelname, "nofixup")) {
+               spec->fixup_list = NULL;
+               spec->fixup_id = -1;
+               return;
+       }
+
        if (codec->modelname && models) {
                while (models->name) {
                        if (!strcmp(codec->modelname, models->name)) {