Currently ASoC card initialisation is completed by a function called
snd_soc_register_card().  As part of the work to allow independant
registration of cards, codecs and machines in ASoC v2 a new function of
the same name has been added so rename the existing function to
facilitate the merge of v2.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

This reverts commit 9171e5e6.

I can't reproduce the compile warnings any more.  The warnings
might be some weird cross-compiling set up.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Hide annoying uninitialized warnings:
  sound/soc/codecs/wm8903.c:382: warning: ‘reg’ may be used uninitialized in this function
  sound/soc/codecs/wm8903.c:383: warning: ‘shift’ may be used uninitialized in this function
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Liam Girdwood's ASoC v2 work avoids having two different ops structures
for DAIs by merging the members of struct snd_soc_ops into struct
snd_soc_dai_ops, allowing per DAI configuration for everything.
Backport this change.

This paves the way for future work allowing any combination of DAIs to
be connected rather than having fixed purpose CODEC and CPU DAIs and
only allowing CODEC<->CPU interconnections.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Fix a few issues identified by Jean Delvare:

 - Add missing newline to error display.
 - Return an error when we fail to locate the I2C adaptor.
 - Remove the static wm8903_i2c_device Jean suggested, it's redundant.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NJean Delvare <khali@linux-fr.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>

The WM8903 is a high performance ultra-low power stereo CODEC optimised
for portable audio applications.  Features include:

    * 5mW power consumption for DAC to headphone playback
    * Stereo DAC SNR 96dB typical, THD -86dB typical
    * Stereo ADC SNR 93dB typical, THD -80dB typical
    * Up to 3 single ended inputs per stereo channel
    * Up to 2 pseudo differential inputs per stereo channel
    * Up to 1 fully differential mic input per stereo channel
    * Digital Dynamic Range Controller (compressor/limiter)
    * Digital sidetone mixing
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>