This patch changes the way DMA is done in omap-pcm.c
in order to reduce power consumption. There is no need
to have so much SW control in order to have DMA in idle
state during audio streaming. Configuring McBSP threshold value
and DMA to FRAME_SYNC are sufficient.
Signed-off-by: NEduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: NJarkko Nikula <jhnikula@gmail.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

All these steps are required for ASoC to behave correctly.
rccr and xccr are format dependent, for example TDM audio
has different values than I2S or DSP_A. Also the
omap_mcbsp_xmit_enable and/or omap_mcbsp_recv_enable must
be called right after the DMA has started.
This provides no longer L and R channels switching at random.
Signed-off-by: NEero Nurkkala <ext-eero.nurkkala@nokia.com>
Acked-by: NJarkko Nikula <jhnikula@gmail.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

This is, no RFIG or XFIG (Not defined in 34xx), correct
initiliazation of rccr and xccr.
Signed-off-by: NEero Nurkkala <ext-eero.nurkkala@nokia.com>
Acked-by: NJarkko Nikula <jhnikula@gmail.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Align DMA address to DMA burst transaction sizes.
Signed-off-by: NEduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: NJarkko Nikula <jhnikula@gmail.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Improve DMA transfers by enabling Burst transaction.
Signed-off-by: NEduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: NJarkko Nikula <jhnikula@gmail.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

The device no longer hits retention if element DMA
mode is taken for at least the duration of the
serial console timeout. Force element DMA mode to
shut down through smartidle.
Signed-off-by: NEero Nurkkala <ext-eero.nurkkala@nokia.com>
Acked-by: NEduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

When no-idle mode is taken, wakeups need not to be enabled.
Moreover, CLOCKACTIVITY bits are unnecessary with this mode
also.
Signed-off-by: NEero Nurkkala <ext-eero.nurkkala@nokia.com>
Acked-by: NEduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Use dma mode property to configure NO IDLE or SMART IDLE of McBSPs.
Signed-off-by: NEduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

FCLK may get autogated so that it prevents the McBSP
to work properly. It is the bit 9 that must be set
for maintaining the McBSP FCLK.
Signed-off-by: NEero Nurkkala <ext-eero.nurkkala@nokia.com>
Signed-off-by: NEduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: NJarkko Nikula <jarkko.nikula@nokia.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Configure only XRDYEN and RRDYEN wakeup signals
in order to get better power consumption.
Signed-off-by: NEduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

This patch enables the smart idle mode while
McBPS is being utilized. Once it's done,
force idle mode is taken instead. Apart of it,
it also configures what signals will wake mcbsp up.
Signed-off-by: NEero Nurkkala <ext-eero.nurkkala@nokia.com>
Signed-off-by: NEduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

It adds a new sysfs file, where the user can configure the mcbsp mode to use.
If the mcbsp channel is in use, it does not allow the change.
Than in omap_pcm_open we can call the omap_mcbsp_get_opmode to get the mode,
store it, than use it to implement the different modes.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: NEduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

This patch renames the symbols that handles threshold
sysfs properties. This way we can add more sysfs properties
to them.
Signed-off-by: NEduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Do not allow applications to use the full buffer found on
McBSP1,3,4,5. Using the full buffer in threshold mode causes
the McBSP buffer to run dry, which can be observed as channels
are switching (in reality the channels are shifting).
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

This patch export through sysfs two properties to configure
maximum threshold for transmission and reception on each
mcbsp instance. Also, it exports two helper functions to
allow mcbsp users to read this values.
Signed-off-by: NEduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

This patch adds a way to handle transmit/receive threshold.
It export to mcbsp users a callback registration procedure.
Signed-off-by: NEduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Increasing startup delay value as worst case:
 CLKSRG*2 = 8000khz: (1/8000) * 2 * 2 usec

Although, 100us may give enough time for two CLKSRG,
due to some unknown PM related, clock gating etc. reason,
this patch increases it to 500us.
Signed-off-by: NEduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Adding McBSP register definition for IRQEN, IRQSTATUS, THRESHOLD2 and THRESHOLD1 registers.
Signed-off-by: NEduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

ASoC has an annoying bug letting either L or R channel to be
played on L channel. In other words, L and R channels can
switch at random. This provides McBSP funtionality that may
be used to fix this feature.
Signed-off-by: NEero Nurkkala <ext-eero.nurkkala@nokia.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

This driver is very simple.
It support playback only now.
This patch is tested by ms7724se board.
Signed-off-by: NKuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

> Then it's a driver bug.  If unaligned period size is allowed, it means
> that the irq is really generated in that period, not at the buffer
> boundary.  Otherwise, it must have a proper hw-constraint to align the
> period size to the buffer size.

This patch will fix the bug metioned in the above mail. Force the peroid
size to be aligned with the buffer size.

Based and tested on linux-2.6.31-rc6.
Signed-off-by: NShine Liu <shinel@foxmail.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Used for applications such as direct bluetooth connections on
smartphones which don't go via the CPU. This used to be supported
before the refactoring to share code but this check was removed
during that move.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

If the CODEC does not provide a set_bias_level() then update the
bias_level variable for it since other parts of the system expect
that to be maintained.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

These need to be in the CODEC since the DAIs supported by the CODECs
aren't static.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Joonyoung Shim reports that S3C64xx I2S is working on the NCP boards so
allow it to be selected in Kconfig.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmciro.com>

The data format configuration for S3C64xx IISv2 was hardcoded for IISMOD
register. This patch changes to the defined values it.

And instead of bits 9 and 10 of IISMOD we should clear bits 13 and 14.
Signed-off-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Note that the number of slots used internally is specified in terms
of stereo slots while the external API works with mono slots.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

When used without the PLL we were accidentally clearing the MCLK/2
divider, resulting in a double rate SYSCLK when the divider should
have been used.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Speaker and headphone outputs do not need to be handled separately
since they can't be part of the same path.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

If the system doesn't have any DAPM widgets then we can't use their
state to check if the bias level for the codec should be up.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

There is a mistake in current uda134x_mute function: mute_reg has been
changed in line 162 or line 164, so uda134x_write should write
"mute_reg" but not "mute_reg & ~(1<<2)" to
UDA134X_DATA010.
Signed-off-by: NShine Liu <shinel@foxmail.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Enhance period_index accuracy, particularly just before buffer rewind, by
making use of DMA interrupt status flags in addition to simply counting up
interrupts.

Created against linux-2.6.31-rc5.

Tested on Amstrad Delta.
Signed-off-by: NJanusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Acked-by: NJarkko Nikula <jhnikula@gmail.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Use newly implemented DMA channel self linking on OMAP1510 like on other OMAP
models. Remove unnecessary DMA transfer restart from interrupt handler
routine.

The interrupt routine used to maintain a period index, originally needed for
counting up periods up to a full buffer in order to restart the DMA transfer.
For some time, this counter is also used as a replacement for hardware DMA
progress counter that has been found unusable on OMAP1510 in case of playback.
Thus, the period index calculation cannot be omitted completely. However, the
accuracy of this counter can still suffer from missing DMA interrupts.

In order to work correctly, it requires patch 1 from this series also applied:
[RFC][PATCH 1/3] ARM: OMAP: DMA: Add support for DMA channel self linking on OMAP1510

Created against linux-2.6.31-rc5.

Tested on Amstrad Delta.
Signed-off-by: NJanusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Acked-by: NJarkko Nikula <jhnikula@gmail.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>

Conflicts:
	sound/soc/Makefile

Signed-off-by: NBarry Song <21cnbao@gmail.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>