ALSA: hda - Move hda_i915.c from sound/pci/hda to sound/hda
authorMengdong Lin <mengdong.lin@intel.com>
Tue, 19 May 2015 14:29:30 +0000 (22:29 +0800)
committerTakashi Iwai <tiwai@suse.de>
Wed, 20 May 2015 04:16:36 +0000 (06:16 +0200)
commit98d8fc6c5d3652e91c61d78941e0fa6f94771d67
tree31f5d9ce478f828686fb848b66bebc664c51898f
parent4214c5349c20005b7a83916801394eb7270896b2
ALSA: hda - Move hda_i915.c from sound/pci/hda to sound/hda

The file is moved to hda core and renamed to hdac_i915.c, so can be used
by both legacy HDA driver and new Skylake audio driver.

- Add snd_hdac_ prefix to the public APIs.
- The i915 audio component is moved to core bus and dynamically allocated.
- A static pointer hdac_acomp is used to help bind/unbind callbacks to get
  this component, because the sound card's private_data is used by the azx
  chip pointer, which is a legacy structure. It could be removed if private
  _data changes to some core structure which can be extended to find the
  bus.
- snd_hdac_get_display_clk() is added to get the display core clock for
  HSW/BDW.
- haswell_set_bclk() is moved to hda_intel.c because it needs to write the
  controller registers EM4/EM5, and only legacy HD-A needs it for HSW/BDW.
- Move definition of HSW/BDW-specific registers EM4/EM5 to hda_register.h
  and rename them to HSW_EM4/HSW_EM5, because other HD-A controllers have
  different layout for the extended mode registers.

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
include/sound/hda_i915.h [new file with mode: 0644]
include/sound/hda_register.h
include/sound/hdaudio.h
sound/hda/Kconfig
sound/hda/Makefile
sound/hda/hdac_i915.c [new file with mode: 0644]
sound/pci/hda/Kconfig
sound/pci/hda/Makefile
sound/pci/hda/hda_i915.c [deleted file]
sound/pci/hda/hda_intel.c
sound/pci/hda/hda_intel.h