ALSA: hda - Modularize HD-audio driver

Split the monolithc HD-audio driver into several pieces:
 - snd-hda-intel   HD-audio PCI controller driver; loaded via udev
 - snd-hda-codec   HD-audio codec bus driver
 - snd-hda-codec-* Specific HD-audio codec drivers

When built as modules, snd-hda-codec (that is invoked by snd-hda-intel)
looks up the codec vendor ID and loads the corresponding codec module
automatically via request_module().

When built in a kernel, each codec drivers are statically hooked up
before probing the PCI.

This patch adds appropriate EXPORT_SYMBOL_GPL()'s and the module
information for each driver, and driver-linking codes between
codec-bus and codec drivers.

TODO:
  - Avoid EXPORT_SYMBOL*() when built-in kernel
  - Restore __devinit appropriately depending on the condition

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

1 files changed, 0 insertions, 24 deletions

diff --git a/sound/pci/hda/hda_patch.h b/sound/pci/hda/hda_patch.h
deleted file mode 100644
index 38212c1020a6..000000000000
--- a/sound/pci/hda/hda_patch.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * HDA Patches - included by hda_codec.c
- */
-
-/* Realtek codecs */
-extern struct hda_codec_preset snd_hda_preset_realtek[];
-/* C-Media codecs */
-extern struct hda_codec_preset snd_hda_preset_cmedia[];
-/* Analog Devices codecs */
-extern struct hda_codec_preset snd_hda_preset_analog[];
-/* SigmaTel codecs */
-extern struct hda_codec_preset snd_hda_preset_sigmatel[];
-/* SiLabs 3054/3055 modem codecs */
-extern struct hda_codec_preset snd_hda_preset_si3054[];
-/* ATI HDMI codecs */
-extern struct hda_codec_preset snd_hda_preset_atihdmi[];
-/* Conexant audio codec */
-extern struct hda_codec_preset snd_hda_preset_conexant[];
-/* VIA codecs */
-extern struct hda_codec_preset snd_hda_preset_via[];
-/* NVIDIA HDMI codecs */
-extern struct hda_codec_preset snd_hda_preset_nvhdmi[];
-/* INTEL HDMI codecs */
-extern struct hda_codec_preset snd_hda_preset_intelhdmi[];