Add the ability to configure the MFP1->MFP5 registers
as GPIOs.  In addition adding ALSA controls to get and set
the GPIO state.

Per the data sheet each MFP can be configured as a GPIO
input only, output only or either an input or output.
Signed-off-by: NDan Murphy <dmurphy@ti.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Add support for the tlv320aic32x6 family of devices.
These devices share the same register set as the tlv320aic32x4
and this driver can be re-used.

TLV320aic32x6 data sheets are here:
tlv320aic3256 - http://www.ti.com/lit/gpn/tlv320aic3256
tlv320aic3206 - http://www.ti.com/lit/gpn/tlv320aic3206Signed-off-by: NDan Murphy <dmurphy@ti.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Support regulators to power up the codec. This patch also enables the
AVDD LDO if no AV regulator was found.
Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de>
Signed-off-by: NMark Brown <broonie@linaro.org>

Add support for a master clock passed through DT. The master clock of
the codec is only active when the codec is in use.
Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de>
Signed-off-by: NMark Brown <broonie@linaro.org>

Add DT support for this codec. The bindings differ a bit from the aic3x
codec bindings, so I created a new binding documentation.
Signed-off-by: NMarkus Pargmann <mpa@pengutronix.de>
Signed-off-by: NMark Brown <broonie@linaro.org>