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

This patch caches the current SYNCCLK settings in the arizona_fll struct
and uses these to simplify the code which determines which source should
be used for the REFCLK and SYNCCLK inputs.
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 moves the
code selecting the REFCLK source based on the 32kHz clock into the FLL
initialisation function.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

For optimal performance the inputs should be kept muted until after power
up. Since there are few use cases for muting inputs during capture move
the mutes to automatic control.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Use _dbg for debug messages.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Previously arizona_calc_fll() was checking if the target frequency is
exactly divisible by reference frequency, but should have been product
of the ratio and the reference frequency.

Also scale down the Lamba and Theta coefficients be under 16-bits in
order to match the registers.
Signed-off-by: NRyo Tsutsui <ryo.tsutsui@wolfsonmicro.com>
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org

Place a cap on the number of channels clocks are generated for. This is
intended for use with systems which have the WM5102 master an I2S bus with
multiple data lines.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Some systems may wish to support switching between telephony and CD audio
clock rates but this is restricted by enforcement of constraints on the
current DAI clock. Support setting clocks to zero and don't enforce any
constraints in that case in order to facilitate this use case.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Otherwise we'll get the wrong LRCLK if we need to pick a higher BCLK than
is required.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org

We only log the result and since the interrupt triggers on loss of lock
during shutdown this may lead to spurious interrupts during shutdown
delaying the process.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

The free running mode can cause problems when attempting to bring up the
FLL running from a defined clock source. This patch disables
free-running mode.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

In preparation for more advanced sample rate managment move the existing
code out of the main hw_params() function.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Some systems use external analogue switches to connect more analogue
devices to the CODEC than are supported by the device.  In some systems
this requires changing the switched output from single ended to
differential mode dynamically at runtime. Add a new function
arizona_set_output_mode() to support this.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

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

These are not supported.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org

ARIZONA_AIF1_RATE_MASK is 0x7800 /* AIF1_RATE - [14:11] */
Thus we need left shift ARIZONA_AIF1_RATE_SHIFT when setting aif1 rate.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org

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>

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

So the code to suppress duplicate changes is effective.

Reported-by: Kyung Kwee Ryu <Kyung-Kwee.Ryu@wolfsonmicro.comyu@wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Provide robustness against low quality FLL sync clocks by increasing the
timeout for lock to an absurdly high point; we should never get anywhere
near hitting the timeout in a real system unless it is failing.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Otherwise we skip reenables.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

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

Some devices support higher clock rates, allow users to select these.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: NDimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org

Some devices support additional clock rates.
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: NHeather Lomond <hlomond@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Arizona devices support two output system clocks. Provide support for
configuring these via set_sysclk(). Once the clock API is more useful
we should migrate over to that.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Some Arizona chips have a higher frequency for the FLL VCO, support this
in the common code.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Some devices have four input structures rather than three.
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>
Acked-by: NLiam Girdwood <lrg@ti.com>

If an audio interface is configured to use ASYNCCLK then update the
asynchronous sample rate rather than one of our primary sample rates.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Allow any BCLK which can be divided down to generate LRCLK, not just the
lowest possible BCLK to clock out the samples.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Allow the user to select which of the system clocks each AIF is referenced
to and constran the DAI to the set of frequencies which can be generated
from that clock.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

They're the rates for the BCLK, not for the sample rate, so rename so that
we don't confuse ourselves.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

The Wolfson Arizona series of audio hub CODECs can share a large amount
of their driver code as the result of a common register map. This patch
adds some of this core support, providing a basis for the initial WM5102
audio driver.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>