This will help support future enhancements in the way we negotiate
parameters in the core.
Signed-off-by: NMark Brown <broonie@linaro.org>

'of_match_ptr' is defined in linux/of.h. Include it explicitly.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NMark Brown <broonie@linaro.org>

According to the datasheet, the max_register is 13h.
ARRAY_SIZE(pcm1681_reg_defaults) + 1 is 18 which is wrong.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

According to the datasheet, the max_register is 13h.
ARRAY_SIZE(pcm1681_reg_defaults) + 1 is 18 which is wrong.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Provide DAPM for the device, ensuring operation with DAPM required by the
core and making it easier to hook up external hardware to it.
Signed-off-by: NMark Brown <broonie@linaro.org>

It is not exported so doesn't need to be in the global namespace and
sparse warns on this.
Signed-off-by: NMark Brown <broonie@linaro.org>

PCM1681 can be controlled via I2C, SPI or in bootstrap mode (no control mode). This code add
support only for I2C mode.
Signed-off-by: NMarek Belisko <marek.belisko@streamunlimited.com>
Signed-off-by: NMark Brown <broonie@linaro.org>