ALSA: hda - Allow multiple callbacks for jack

So far, hda_jack infrastructure allows only one callback per jack, and
this makes things slightly complicated when a driver wants to assign
multiple tasks to a jack, e.g. the standard auto-mute with a power
up/down sequence.  This can be simplified if the hda_jack accepts
multiple callbacks.

This patch is such an extension: the callback-specific part (the
function and private_data) is split to another struct from
hda_jack_tbl, and multiple such objects can be assigned to a single
hda_jack_tbl entry.

The new struct hda_jack_callback is passed to each callback function
now, thus the patch became bigger than expected.  But these changes
are mostly trivial.

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

1 files changed, 2 insertions, 1 deletions

diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index e0c5bc1..d5b0582 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -393,7 +393,8 @@ static void olpc_xo_update_mic_pins(struct hda_codec *codec)
 }
 
 /* mic_autoswitch hook */
-static void olpc_xo_automic(struct hda_codec *codec, struct hda_jack_tbl *jack)
+static void olpc_xo_automic(struct hda_codec *codec,
+			    struct hda_jack_callback *jack)
 {
 	struct conexant_spec *spec = codec->spec;
 	int saved_cached_write = codec->cached_write;