Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

The driver only supports I2C as the control interface.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Devices that aren't MFDs don't need to distinguish this.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

When no platform data is supplied, point pdata at a default platform
structure. This enables two future changes:

a) Defines the default platform data values in a single place.
b) There is always a valid pdata pointer, so some conditional code can
   be simplified by a later patch.

Based on work by John Bonesio, but significantly reworked since then.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Get control of the device earlier and avoid trying to do an ASoC probe
on a card that won't work.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: NStephen Warren <swarren@nvidia.com>

Converting to an rbtree cache as regcache doesn't have a flat cache.
Since the top of the register map is fairly sparse this should be an
overall win.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: NStephen Warren <swarren@nvidia.com>

We only do this on initial power on so it's at best a waste of time as
the core will have already defaulted to the same values.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: NStephen Warren <swarren@nvidia.com>

The driver used to use a complicated method to sync the register cache
after having brought the bias level up to standby in resume due to the
use of the write sequencer to manage the initial power up. Now that we
don't use the write sequencer there is no need for this and we can just
use snd_soc_cache_sync() directly.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: NStephen Warren <swarren@nvidia.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: NStephen Warren <swarren@nvidia.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: NStephen Warren <swarren@nvidia.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: NStephen Warren <swarren@nvidia.com>

Since they don't actually have power bits but do have events associated
with them it's important that we bootstrap their state properly which
making them virtual does.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

There are some in tree systems using the driver but none use the MICBIAS
widgets.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

The GPIO registers are 15 bits wide. Hence values, higher than 0x7fff are
not legal GPIO register values. Modify the pdata.gpio_cfg handling code
to reject all illegal values, not just WM8903_GPIO_NO_CONFIG (0x8000). This
will allow the later use of 0xffffffff as an invalid value in future device
tree bindings, meaning "don't touch this GPIO's configuration".
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

The existence of this parameter is purely historical. None of the CODEC drivers
uses it and we always pass in the same value anyway, so it should be safe to
remove it.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Acked-by: NLiam Girdwood <lrg@ti.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NLiam Girdwood <lrg@ti.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NLiam Girdwood <lrg@ti.com>

Still have a manual free in there for some realloc()ed memory as there's
no devm version of that.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Allow systems to override the default microphone detection rates using
platform data in case the settings are not suitable (eg, due to an
unusually noisy jack).
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

We don't need to rerun DAPM if the clock source is the same but we do
need to adjust the microphone detection rate in case we are moving from
an audio to a non-audio rate.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

The WM1811A features an advanced low power accessory detection subsystem
which allows the device to be maintained in a very low power state while
the system is idle without sacrificing any accessory detection features.

Implement software support for this, automatically managing the power
configuration of the device depending on the detected accessory.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

More specific and avoids confusion with a following change.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

The WM8958 and WM1811 support detecting a range of buttons. Allow the
user to provide platform data enabling more of these levels without
having to write a custom detection handler.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Saves a little power.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

This will support refactoring to make use of the regmap API more directly
in the core.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Actively manage the detection rate for microphones with WM8958, providing
improved power consumption and maximising the benefit from the hardware
debounce.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

When we don't have any active audio we can put the microphone biases into
bypass mode to save power at the expense of performance.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Ensure SYSCLK is enabled while running accessory detection on WM8958.
It is always required so there is no sense in requiring machine drivers
to individually do this.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Add support for loading the SigmaDSP firmware using regmap. This allows us
to transparently use SPI or I2C as the transport protocol on devices which
support them.

For now we keep the old I2C support since we have one user of this which is not
straight forward to convert to regmap, due to variable length registers.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Acked-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Move the structs and functions only used by SigmaDSP firmware loader itself
from the header to the C file.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Acked-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Provide some error messages when loading the firmware fails, so it is possible
to diagnose the reason for the failure.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Acked-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>