ALSA: hda - Add chained_before flag to the fixup entry

Sometimes we want to call a fixup after applying other existing
fixups, but currently the fixup chain mechanism allows only the call
the others after the target fixup.  This patch adds a new flag,
chained_before, to struct hda_fixup, for allowing the chained call
before the current execution.

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

diff --git a/sound/pci/hda/hda_auto_parser.c b/sound/pci/hda/hda_auto_parser.c
index 0088bb0..96a05c4 100644 (file)
--- a/sound/pci/hda/hda_auto_parser.c
+++ b/sound/pci/hda/hda_auto_parser.c
@@ -696,20 +696,18 @@ static void set_pin_targets(struct hda_codec *codec,
                snd_hda_set_pin_ctl_cache(codec, cfg->nid, cfg->val);
 }
 
-void snd_hda_apply_fixup(struct hda_codec *codec, int action)
+static void apply_fixup(struct hda_codec *codec, int id, int action, int depth)
 {
-       int id = codec->fixup_id;
 #ifdef CONFIG_SND_DEBUG_VERBOSE
        const char *modelname = codec->fixup_name;
 #endif
-       int depth = 0;
-
-       if (!codec->fixup_list)
-               return;
 
        while (id >= 0) {
                const struct hda_fixup *fix = codec->fixup_list + id;
 
+               if (fix->chained_before)
+                       apply_fixup(codec, fix->chain_id, action, depth + 1);
+
                switch (fix->type) {
                case HDA_FIXUP_PINS:
                        if (action != HDA_FIXUP_ACT_PRE_PROBE || !fix->v.pins)
@@ -749,13 +747,19 @@ void snd_hda_apply_fixup(struct hda_codec *codec, int action)
                                   codec->chip_name, fix->type);
                        break;
                }
-               if (!fix->chained)
+               if (!fix->chained || fix->chained_before)
                        break;
                if (++depth > 10)
                        break;
                id = fix->chain_id;
        }
 }
+
+void snd_hda_apply_fixup(struct hda_codec *codec, int action)
+{
+       if (codec->fixup_list)
+               apply_fixup(codec, codec->fixup_id, action, 0);
+}
 EXPORT_SYMBOL_HDA(snd_hda_apply_fixup);
 
 void snd_hda_pick_fixup(struct hda_codec *codec,

diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index f92979c..2ff62dc 100644 (file)
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -401,7 +401,8 @@ struct hda_model_fixup {
 
 struct hda_fixup {
        int type;
-       bool chained;
+       bool chained:1;         /* call the chained fixup(s) after this */
+       bool chained_before:1;  /* call the chained fixup(s) before this */
        int chain_id;
        union {
                const struct hda_pintbl *pins;