The reference clock path on newer IP FLLs requires a different
configuration, and should avoid integer mode operation. This patch adds
support for both the new encoding and updates the calculation.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

No part of the FLL calculation depends on the value determined for the
gain but the gain does depend on other values. In preparation for future
updates this patch moves the gain to be the last thing calculated.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

OUTDIV will remain unchanged whilst the rest of the FLL configuration is
calculated so do this first.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

As we now calculate the FLL configuration at a later stage in the
process the fout member of the FLL structure will contain the desired
Fout frequency so no need to pass this in seperately.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Currently the FLL configuration is calculated before it is known which
FLL path the configuration will be applied to. Newer versions of the IP
have differences in the configuration required for each FLL path, which
makes it complicated to calculate the FLL configuration in advance.

This patch simply checks the validity of a requested input and output
frequency before we know which FLL path they will be applied to and
saves the actual calculation of the configuration until we know where
the settings will be applied.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Since we know in arizona_apply_fll if we are setting the sync or ref
path there is no need to set the outdiv seperately anymore. This patch
moves this from arizona_enable_fll to arizona_apply_fll.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Improve readability by adding defines for some of the constants
associated with FLL configuration.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

One is not a valid value for the OUTDIV start searching at 2 instead.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Add support for configuring the sample rate on the SYSCLK side of the
ASRC.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Currently, the driver only supports configuration of the lower sample
rate (FSL) on the ISRCs. With the higher rate being fixed a SYSCLK, this
patch adds support for configuring the higher sample rate (FSH).
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Where possible write to the device asynchronously, allowing better
performance when used with a bus like SPI which supports this by
minimising the need to context switch back to the driver to get the
next bit of data.
Signed-off-by: NMark Brown <broonie@linaro.org>
Tested-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Reviewed-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>

Acked-by: NMark Brown <broonie@kernel.org>
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The FLL must be placed into free-run mode before disabling
to allow it to entirely shut down.
Signed-off-by: NRichard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org

Signed-off-by: ND.J. Barrow <dbarrow@wolfsonmicro.com>
Signed-off-by: NRichard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

This patch suppresses calculation of REFCLK parameters when the REFCLK
source frequency is set to zero, additionally it will consider a source
frequency of zero as the REFCLK being disabled and switch to using the
SYNCCLK.
Reported-by: NKyung Kwee Ryu <Kyung-Kwee.Ryu@wolfsonmicro.com>
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

The wm8997 is a compact, high-performance audio hub CODEC with SLIMbus
interfacing, for smartphones, tablets and other portable audio devices
based on the Arizona platform.

This patch adds the wm8997 CODEC driver.

[Fixed some interface churn from bitrot due to the patch not going via
the MFD tree as expected -- broonie]
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

The input OSR bits are specified differently for wm5110 than for current
revs of wm5102. This patch corrects support for this on wm5110.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Reported-by: NFengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

When doing signal activity detection, the only output from the DRC will
often be a GPIO pin. This patch adds a signal activity output that is
activated when a GPIO is configured to output the DRC signal activity
detection.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

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

Ensure that the outputs are fully enabled before we begin passing audio
through them.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Running HPDET while the headphone outputs are enabled can disrupt the
operation of HPDET. In order to avoid this HPDET needs to disable the
headphone outputs and ASoC needs to not enable them while HPDET is
running.

Do the ASoC side of this by storing the enable state in the core driver
structure and only writing to the device if a flag indicating that the
accessory detection side is in a state where it can have the headphone
output stage enabled.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Remove duplicated include.
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Since ASoC does not yet really have the framework features needed to
support propagating sample rates through the device well yet implement
basic support for the ISRCs equivalent to that we currently have for the
ASRCs. The user can opt for 8kHz or 16kHz as the rate for the DSP blocks
in addition to the main audio rate, these being the primary use cases.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Ensure that the device state does not diverge from the state we have set
in the register map in order to make the behaviour clearer.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

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

Some system designs have been identified which repurpose portions of the
speaker driver circuits for other functions which will require that they
not be managed using DAPM. Prepare for this by factoring out the creation
of the speaker widgets into the core driver, the widgets will be replaced
by dummy ones when the additional functions are enabled.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

I2S requires stereo clocking even for mono data.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

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

Allow users to keep on specifying their output frequency when disabling
the reference clock.
Reported-by: NKyung Kwee Ryu <Kyung-Kwee.Ryu@wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

When live configuring a FLL configuration with no synchroniser disable the
synchroniser in case the previous configuration used one.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

For optimal performance the FLL loop gain should be adjusted depending on
the frequency of the input clock for the loop.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

If we are using a high freqency SYNCCLK then increasing the bandwidth of
the synchroniser improves performance.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

If there is only one clock active the FLL should use REFCLK rather than
SYNCCLK as the clock to synchronise with since REFCLK is always required.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Enabling the FLL when REFCLK is being configured is not what the user
would expect and can cause issues if SYNCCLK has no specified frequency.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Since we are automatically managing the mutes we may as well also manage
the volume update bits, disabling volume updates while none of the inputs
are active. Since we are doing this we may as well allow the volumes to
ramp together so only enable volume updates once at the end of power up.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

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

This patch allows the REFCLK to be set directly allowing much greater
flexibility in how the FLLs are configured.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Previously updates that only changes FLL source would be missed, this
patch corrects this. We also ensures that both REFCLK and SYNCCLK
frequency changes are considered, in preparation for future updates.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

In preparation for additional features on the FLL this patch factors out
the code for enabling an FLL into a seperate function.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>