This initial conversion just moves the register init, regulator acquisition
and device verification out to the I2C probe(). Movement of other parts of
the driver like the GPIO and beep generation code will follow.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Disable the thermal shutdown circuits for headphone and speaker when the
relevant outputs are not enabled in order to save current in idle modes.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
They aren't needed any more. If machines need them for other purposes then
further changes will be required.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Force MICBIAS on as well as SYSCLK as the WM8962 accessory detection can't
function without both. No point in making machine drivers manually enable
it.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Since we have code to automatically manage the start and stop of the FLL
based on the SYSCLK widget if SYSCLK is already enabled and the FLL is
configured then we need to start it up.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Since there is no current software control for these they would otherwise
be left enabled, consuming power.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
The WM8962 has a separate software reset for the PLL registers. Ensure that
these are reset also on startup.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
A supply widget is generally clearer than a MICBIAS widget and a mic bias
is just a type of supply so use a supply widget for the MICBIAS. This also
avoids confusion with the routing when connected to multiple inputs.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This functionality is now subsumed within the bias management, using the
standard cache management functionality, without assuming the cache type.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
This should never happen with level triggered IRQs.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
The WM8962 features a DSP providing a number of signal processing
features including HD Bass and Virtual Surround Sound (VSS). Enable
initial support for this, allowing users to enable and disable the
algorithms using the default coefficient sets. Further patches will
add support for runtime configuration of the DSP coefficients.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
When the clocking registers are not overriden some of the registers are
not writable.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Cc: stable@kernel.org
This closes the small race between a status being read in response to an
interrupt and clearing the interrupt, meaning that if the status changes
between those periods we might not get a reassertion of the interrupt.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Don't require an audio rate SYSCLK in hw_params() in order to better
support microphone detection use cases.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
We really should be getting the interrupt - if we don't get one it's very
likely that the configuration is incorrect and audio will fail. Also
increase the timeout substantially in this case for safety.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
The chip can actually support SPI so we shouldn't assume we've got an I2C
device even though that's the most common configuration.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
When bringing up audio low power modes boards may configure SYSCLK before
they actually start the FLL as we do much of the clocking setup prior to
the power up sequence.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
DMIC support is automatically disabled when none of the GPIOs are set up
to bring out the DMICCLK and DMICDAT pins at startup.
Note that there's no support for controlling DMIC routing except the power
control so the board DAPM configuration will need to manage DMIC enable and
disable if analogue mics (eg, a headset) also exist.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Directly accessing the register cache means that we can't use anything
except a flat register cache so use snd_soc_update_bits().
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
The multi-component patch(commit f0fba2ad1) moved the allocation of the
register cache from the driver to the ASoC core. Most drivers where adjusted to
this, but the wm8962 driver still uses its own register cache for its
private functions, while functions from the ASoC core use the generic cache.
Thus we end up with two from each other incoherent caches, which can lead to
undefined behaviour.
This patch fixes the issue by changing the wm8962 driver to use the
generic register cache in its private functions.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org (for 2.6.37 only)
Add jack detection interrupt trace to Wolfson CODEC drivers.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
There is no need to include soc-dapm.h since soc.h includes it.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
We allocated memory for wm8962 in wm8962_i2c_probe,
and will free the memory in either wm8962_i2c_probe error path
or wm8962_i2c_remove.
Thus we should not call kfree(wm8962) in wm8962_probe, otherwise
we have double free of wm8962.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
