Rename of_match_compat_data() to of_compatible_match(). Similarly,
rename of_search_compatible() to of_compatible_lookup().

Standardize on of_compatible_match() for driver matching, and adapt
all call sites.

Merge isaki-audio2 branch, the overhaul of audio subsystem.
- Interrupt-oriented system rather than thread-oriented.
- Improve stability, quality and performance.
- Split playback and record cleanly. Improve halfduplex support.
- Many bugs are fixed including deadlocks, resource leaks, abuses, etc.
- Simplify audio filter mechanism. The encoding/channels/frequency
conversions are completely handled in the upper layer. So the hard-
ware driver only converts its hardware encoding (if necessary).
- audio_hw_if changes:
- Obsoletes query_encoding and add query_format instead.
- Obsoletes set_params and add set_format instead.
- Remove drain, setfd, mappage.
- The call sequences are changed.
- ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted.
- ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced.
- cleanup config attributes: au*conv and mulaw.
- All hardware drivers should follow it (I've done as much as possible).

Some file paths are changed:
- dev/audio.c -> dev/audio/audio.c (rewritten)
- dev/audiovar.h -> dev/audio/audiovar.h
- dev/audio_dai.h -> dev/audio/audio_dai.h
- dev/audio_if.h -> dev/audio/audio_if.h
- dev/audiobell.c -> dev/audio/audiobell.c
- dev/audiobellvar.h -> dev/audio/audiobellvar.h
- dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c

branches: 1.8.2; 1.8.4; 1.8.6;
Add mic preamp controls and unswap L/R DAC channels to ADC mixer

Rename mic1 control to mic so audiorecord can use it

Add outputs.mute control

Mixer improvements:

- outputs.master switches between line and hp volume control, depending
on jack sense
- add outputs.source to override jack sense output routing
- (playback) line and hp controls are in the input class
- (capture) line and mic controls are in the record class

Disable lineout by default. If HP is not plugged at boot, we get an
unplug event. However, no plug event when HP is plugged at boot.

Add HP jack detect support. When HP is present, mute lineout.

Enable HP PA output

Add support for Allwinner A64 audio codec.

Merge isaki-audio2 branch, the overhaul of audio subsystem.
- Interrupt-oriented system rather than thread-oriented.
- Improve stability, quality and performance.
- Split playback and record cleanly. Improve halfduplex support.
- Many bugs are fixed including deadlocks, resource leaks, abuses, etc.
- Simplify audio filter mechanism. The encoding/channels/frequency
conversions are completely handled in the upper layer. So the hard-
ware driver only converts its hardware encoding (if necessary).
- audio_hw_if changes:
- Obsoletes query_encoding and add query_format instead.
- Obsoletes set_params and add set_format instead.
- Remove drain, setfd, mappage.
- The call sequences are changed.
- ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted.
- ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced.
- cleanup config attributes: au*conv and mulaw.
- All hardware drivers should follow it (I've done as much as possible).

Some file paths are changed:
- dev/audio.c -> dev/audio/audio.c (rewritten)
- dev/audiovar.h -> dev/audio/audiovar.h
- dev/audio_dai.h -> dev/audio/audio_dai.h
- dev/audio_if.h -> dev/audio/audio_if.h
- dev/audiobell.c -> dev/audio/audiobell.c
- dev/audiobellvar.h -> dev/audio/audiobellvar.h
- dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c

branches: 1.8.2; 1.8.6;
Add mic preamp controls and unswap L/R DAC channels to ADC mixer

Rename mic1 control to mic so audiorecord can use it

Add outputs.mute control

Mixer improvements:

- outputs.master switches between line and hp volume control, depending
on jack sense
- add outputs.source to override jack sense output routing
- (playback) line and hp controls are in the input class
- (capture) line and mic controls are in the record class

Disable lineout by default. If HP is not plugged at boot, we get an
unplug event. However, no plug event when HP is plugged at boot.

Add HP jack detect support. When HP is present, mute lineout.

Enable HP PA output

Add support for Allwinner A64 audio codec.

branches: 1.8.2;
Add mic preamp controls and unswap L/R DAC channels to ADC mixer

Rename mic1 control to mic so audiorecord can use it

Add outputs.mute control

Mixer improvements:

- outputs.master switches between line and hp volume control, depending
on jack sense
- add outputs.source to override jack sense output routing
- (playback) line and hp controls are in the input class
- (capture) line and mic controls are in the record class

Disable lineout by default. If HP is not plugged at boot, we get an
unplug event. However, no plug event when HP is plugged at boot.

Add HP jack detect support. When HP is present, mute lineout.

Enable HP PA output

Add support for Allwinner A64 audio codec.