Commit Graph

361 Commits

Author SHA1 Message Date
Peter Ujfalusi 226e2f1b0b ASoC: davinci-mcasp: Add support for CBS_CFM mode
Support for setups where codec is bitclock slave and frame master.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-14 13:27:03 +09:00
Peter Ujfalusi caa1d794cc ASoC: davinci-mcasp: Fix DIT only McASP instance support
One of the McASP instances in DM646x line of DMSoC only supports DIT mode.
This means that the given IP does not have support for rx and all the rx
related resources are missing, like irq and DMA request.
The driver should not fail if any or all  of the RX resource is missing
when the op_mode is set to DIT mode.
Since RX is not possible in DIT mode, we can just ignore the rx resources
when the McASP is used in DIT mode.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-02 18:32:43 +00:00
Peter Ujfalusi 8f511ffb6b ASoC: davicni-mcasp: Mark the common irq line as shared
On DA830 devices McASP0,1 and 2 shares a single combined interrupt request
line.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-02 18:32:43 +00:00
Peter Ujfalusi 67d35e5bc3 ASoC: davinci-evm: Do not include davinci-pcm.h and davinci-i2s.h
There is no need for them to be included.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-02 18:26:15 +00:00
Peter Ujfalusi 2f91ab86ec ASoC: davinci-evm: Do not include edma headers
The machine driver has no business with the underlying dma.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-02 18:26:15 +00:00
Arnd Bergmann f9a7ba3269 ASoC: davinci: fix DM365_EVM codec selection
An earlier bug fix of mine made the SND_DM365_VOICE_CODEC symbol
tristate to avoid creating an undefined reference from the
davinci-vcif.c driver to the davinci_soc_platform_register
function that may be in a module.

However, this may now lead to a different error on randconfig
kernels:

"warning: SND_DM365_VOICE_CODEC creates inconsistent choice state"

This happens because we now have a choice statement with
one bool and one tristate option, and the latter might not
support being set to 'y' because of dependencies.

This new change turns the other option into 'tristate' as well,
which avoids the problem.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 19926c6de0 ("ASoC: davinci: vcif must be a module if SND_DAVINCI_SOC is")
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-29 11:51:29 +00:00
Peter Ujfalusi 5a1b8a80da ASoC: davinci-mcasp: Support for combined tx/rx interrupt line
Some SoC, like da850/OMAP-L138 uses one common interrupt request for TX/RX
events.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-30 16:44:11 +00:00
Linus Torvalds e6b5be2be4 Driver core patches for 3.19-rc1
Here's the set of driver core patches for 3.19-rc1.
 
 They are dominated by the removal of the .owner field in platform
 drivers.  They touch a lot of files, but they are "simple" changes, just
 removing a line in a structure.
 
 Other than that, a few minor driver core and debugfs changes.  There are
 some ath9k patches coming in through this tree that have been acked by
 the wireless maintainers as they relied on the debugfs changes.
 
 Everything has been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core update from Greg KH:
 "Here's the set of driver core patches for 3.19-rc1.

  They are dominated by the removal of the .owner field in platform
  drivers.  They touch a lot of files, but they are "simple" changes,
  just removing a line in a structure.

  Other than that, a few minor driver core and debugfs changes.  There
  are some ath9k patches coming in through this tree that have been
  acked by the wireless maintainers as they relied on the debugfs
  changes.

  Everything has been in linux-next for a while"

* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
  Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
  fs: debugfs: add forward declaration for struct device type
  firmware class: Deletion of an unnecessary check before the function call "vunmap"
  firmware loader: fix hung task warning dump
  devcoredump: provide a one-way disable function
  device: Add dev_<level>_once variants
  ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
  ath: use seq_file api for ath9k debugfs files
  debugfs: add helper function to create device related seq_file
  drivers/base: cacheinfo: remove noisy error boot message
  Revert "core: platform: add warning if driver has no owner"
  drivers: base: support cpu cache information interface to userspace via sysfs
  drivers: base: add cpu_device_create to support per-cpu devices
  topology: replace custom attribute macros with standard DEVICE_ATTR*
  cpumask: factor out show_cpumap into separate helper function
  driver core: Fix unbalanced device reference in drivers_probe
  driver core: fix race with userland in device_add()
  sysfs/kernfs: make read requests on pre-alloc files use the buffer.
  sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
  fs: sysfs: return EGBIG on write if offset is larger than file size
  ...
2014-12-14 16:10:09 -08:00
Mark Brown c117b4a39b Merge branch 'fix/davinci' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-davinci 2014-11-17 16:40:27 +00:00
Misael Lopez Cruz a7a3324a60 ASoC: davinci-mcasp: Add overrun/underrun event handling
An underrun (playback) event occurs when the serializer transfer
data from the XRBUF buffer to the XRSR shift register, but the
XRBUF hasn't been filled. Similarly, the overrun (capture) event
occurs when data from the XRSR shift register is transferred to
the XRBUF but it hasn't been read yet.

These events are handled as XRUN events that cause the pcm to stop.
The stream has to be explicitly restarted by the userspace which
ensures that after stopping/starting McASP the data transfer is
aligned with DMA. The other possibility was to internally stop and
start McASP without DMA even knowing about it.

Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-12 14:55:00 +00:00
Misael Lopez Cruz 18a4f55756 ASoC: davinci-mcasp: Active slots depend on active serializers
Active slots count depends on the number of channels in the stream
and the number of active serializers. Each serializer will handle
at most the number of channels specified via 'tdm-slots' parameter
in DT.

There are two possible scenarios:

- Single serializer: channel count fits in the max slots supported by
  McASP serializers, active slots is same as channel count

- Multiple serializers: channel count is bigger than max slots supported
  by a serializer. Channel count determines how many serializers are
  needed at their max slot count configuration

Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-10 15:00:01 +00:00
Peter Ujfalusi 11277833ce ASoC: davinci-mcasp: Place constraint on number of channels
In IIS (I2S, TDM, etc) mode the maximum number of allowed channels for
either direction can be:
number of serializers for the direction * tdm_slots.
This constraint applicable for the first stream, while consequent stream
should not have more channels then the first stream.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-10 15:00:01 +00:00
Peter Ujfalusi 1a5923da4e ASoC: davinci-mcasp: Validate tdm_slots parameter at probe time
Instead of validating the tdm_slots parameter every time at hw_params we
can do it once during probe. If the parameter is not valid (<2 or >32)
print an error and fix it up.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-10 15:00:01 +00:00
Peter Ujfalusi d742b92524 ASoC: davinci-mcasp: Fix rx format when more bclk is used on the bus
When the bus is configured to have more BCLK then the data type demands we
need to use the rotation to move the data to correct place.

Reported-by: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-10 14:55:54 +00:00
Peter Ujfalusi d75249f545 ASoC: davinci-mcasp: Symmetric sample bits for IIS mode
In IIS mode the tx and rx configuration is symmetric, the BCLK and FSYNC is
shared.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-10 14:55:26 +00:00
Anil Kumar 7771ef3286 ASoC: davinvi-mcasp: Balance pm_runtime_enable() on probe failure
If probe fails then we need to call pm_runtime_disable() to balance
out the previous pm_runtime_enable() call.

Signed-off-by: Anil Kumar <anilk4.v@gmail.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-10 13:45:38 +00:00
Peter Ujfalusi bb372af0f7 ASoC: davinci-mcasp: Move the AFIFO related code under start_tx/rx functions
In this way the start code for tx/rx going to be located at the same place.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-29 12:32:14 +00:00
Peter Ujfalusi 0380866a91 ASoC: davinci-mcasp: When stopping TX/RX stop the AFIFO as the last step
The AFIFO should not be stopped (or started for that matter) when McASP is
running since it can cause unpredictable issues because we are switching off
AFIFO for the direction which was handling the requests from McASP and was
generating DMA request toward the system DMA.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-29 12:31:38 +00:00
Peter Ujfalusi 4498273551 ASoC: davinci-mcasp: Correct RX start sequence
Follow the sequence described in the TRMs when starting RX.
Write to RXBUF register was not correct and there is no need to release the
RX state machine/Receive frame sync generator twice.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-29 12:31:38 +00:00
Peter Ujfalusi 36bcecd0a7 ASoC: davinci-mcasp: Correct TX start sequence
Follow the sequence described in the TRMs when starting TX. This sequence
will make sure that we are not facing with initial channel swap caused by
no data available in McASP for transmit.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-29 12:31:38 +00:00
Wolfram Sang a17b87a5b0 ASoC: davinci: drop owner assignment from platform_drivers
A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-20 16:22:07 +02:00
Mark Brown 565fefdf31 Merge remote-tracking branches 'asoc/topic/davinci', 'asoc/topic/dmic', 'asoc/topic/drivers', 'asoc/topic/es8328' and 'asoc/topic/fsl' into asoc-next 2014-10-06 12:48:57 +01:00
Mark Brown 832a94143c Merge remote-tracking branches 'asoc/fix/davinci' and 'asoc/fix/max98090' into asoc-linus 2014-10-06 12:48:50 +01:00
Peter Ujfalusi f114ce605d ASoC: davinvi-mcasp: Proper suspend/resume support while audio is active
If the board is sent to suspend (deep sleep) the McASP context will be lost.
In case when suspend happens during active audio we need to save and restore
more registers, which was configured during hw_param times as well.
We need to add more config registers, AFIFO control registers and we also
need to save and restore the serializer configuration as well.
Since the number of serializers depends on the SoC we need to allocate the
memory for it based on the num_serializer for the given McASP instance.

With this patch the ongoing stream will resume after resuming from deep
sleep.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-01 17:02:09 +01:00
Peter Ujfalusi 1cc0c054f3 ASoC: davinci-mcasp: Convert the context save/restore to use array
Instead of individual values use an array to store the registers need to be
saved on suspend and restored on resume.
It is going to be easier to add more registers to save and restore.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-01 17:02:07 +01:00
Arnd Bergmann 19926c6de0 ASoC: davinci: vcif must be a module if SND_DAVINCI_SOC is
It is possible to configure a kernel with SND_DAVINCI_SOC=m and
SND_DM365_VOICE_CODEC=y, which results in a link error:

sound/built-in.o: In function `davinci_vcif_probe':
sound/soc/davinci/davinci-vcif.c:223: undefined reference to `davinci_soc_platform_register'

The best way to avoid this is to make SND_DM365_VOICE_CODEC
a tristate option that depends on SND_DAVINCI_SOC, so it
can only be a module or disabled when the base driver is
a loadable module

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-29 17:12:05 +01:00
Mark Brown f7667af217 Merge remote-tracking branches 'asoc/fix/cs4265', 'asoc/fix/davinci', 'asoc/fix/rockchip', 'asoc/fix/samsung' and 'asoc/fix/tlv320aic31xx' into asoc-linus 2014-09-15 15:05:34 -07:00
Peter Ujfalusi fe0a29e163 ASoC: davinci-mcasp: Correct rx format unit configuration
In case of capture we should not use rotation. The reverse and mask is
enough to get the data align correctly from the bus to MCU:
Format	  data from bus    after reverse (XRBUF)
S16_LE:  |LSB|MSB|xxx|xxx|  |xxx|xxx|MSB|LSB|
S24_3LE: |LSB|DAT|MSB|xxx|  |xxx|MSB|DAT|LSB|
S24_LE:  |LSB|DAT|MSB|xxx|  |xxx|MSB|DAT|LSB|
S32_LE:  |LSB|DAT|DAT|MSB|  |MSB|DAT|DAT|LSB|

With this patch all supported formats will work for playback and capture.

Reported-by: Jyri Sarha <jsarha@ti.com> (broken S24_3LE capture)
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2014-09-04 12:44:49 +01:00
Lars-Peter Clausen 371e07ec83 ASoC: edma-pcm: Include edma-pcm.h
edma_pcm_platform_register() is declared in edma-pcm.h and defined in
edma-pcm.c. To make sure that the function signature matches for both
edma-pcm.c should include edma-pcm.h

Fixes the following sparse warning:
	sound/soc/davinci/edma-pcm.c:48:5: warning: symbol
	 'edma_pcm_platform_register' was not declared. Should it be static?

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-17 09:31:06 -05:00
Jyri Sarha 8813543ecb ASoC: mcasp: Fix implicit BLCK divider setting
The implicit BLCK divider setting was broken by "ASoC: mcasp: don't
override bclk divider if it was provided by the machine"-patch. After
the BCLK divider is implicitly set for the first time the
mcasp->bclk_div gets a non zero value and the implicit setting is
"turned off".

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-12 23:04:08 +01:00
Peter Ujfalusi 37119dd791 ASoC: davinci: Enable menuconfig entry for McASP
In order to be able to use simple-card with McASP on TI SoC based boards we
need to be able to select the McASP via menuconfig.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-04 16:28:30 +01:00
Daniel Mack 8267525c99 ASoC: mcasp: don't override bclk divider if it was provided by the machine
If a machine driver provides an BCLK divider to the McASP driver, skip the
automatic calculation.

This fixes machines on which the physical sample transport always works
in 32 bits, even though not all of them are actually used.
snd_soc_params_to_bclk() will fail to address such cases properly.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-07-16 22:15:15 +01:00
Peter Ujfalusi f3f9cfa8a1 ASoC: davinci-mcasp: Use dmaengine based platform driver for AM335x/447x
Use the edma-pcm with AM335x and AM437x SoCs.
Keep using the davinci-pcm for daVinci devices, they can be switched to use
the dmaengine based driver later when they are verified to work correctly.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-07-16 22:09:13 +01:00
Peter Ujfalusi e8ffacee0a ASoC: edma-pcm: Add empty functions for !CONFIG_SND_EDMA_SOC builds
So drivers mixing with other platform drivers, like davinci-mcasp do not
need to fiddle with CONFIG_SND_EDMA_SOC in their code.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-07-16 22:09:08 +01:00
Peter Ujfalusi 24600b5472 ASoC: edma-pcm: Remove PCM_INFO_BATCH and add PCM_INFO_NO_PERIOD_WAKEUP flag
The SNDRV_PCM_INFO_BATCH will be added back based on the dmaengine driver's
capabilities.
Patches for edma dmaengine driver has been prepared to suppress the
interrupts. We can add this flag right away and have the benefit of not
having interrupts during audio activity when the edma and ASoC patches
are in the same tree.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-07-16 22:08:55 +01:00
Mark Brown 91fff60b7d Merge remote-tracking branch 'asoc/fix/davinci' into asoc-davinci 2014-07-16 22:08:39 +01:00
Peter Ujfalusi 182bef863c ASoC: davinci-mcasp: Fix S24_LE and U24_LE support
In case of S24_LE/U24_LE modes we expect 24bits on the bus while the samples
are stored and transferred in memory on 32bits (lower 3 bytes of the 4
bytes).

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-06-30 15:53:25 +01:00
Jyri Sarha 0929878f93 ASoC: davinci-mcasp: Allow best effort in selecting BCLK divider
Do not fail if the exact BLCK rate can not be produced, just print a
warning. Check that sysclk frequency is set before implicitly setting
the BCLK divider.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-06-21 11:05:01 +01:00
Jyri Sarha 7f28f35784 ASoC: davinci-mcasp: Add dependecy to SND_DAVINCI_SOC or SND_OMAP_SOC
Fixes build with SND_DAVINCI_SOC or SND_OMAP_SOC alone and adds build
dependecy to SND_DAVINCI_SOC or SND_OMAP_SOC.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-06-21 11:03:01 +01:00
Daniel Mack 6479285d8a ASoC: davinci-mcasp: set up channel status bits for S/PDIF mode
In DIT (S/PDIF) mode, program the transmitted user bits to reflect the
configured sample rate, along with some other details.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-06-18 18:55:42 +01:00
Mark Brown 440a528558 Merge remote-tracking branches 'asoc/topic/omap' and 'asoc/topic/rcar' into asoc-next 2014-06-03 10:39:53 +01:00
Lars-Peter Clausen 2896b8b4d8 ASoC: davinci-evm: Replace instances of rtd->codec->card with rtd->card
No need to go via the CODEC to get a pointer to the card. This will help to
eventually remove the card field from the snd_soc_codec struct.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-26 16:34:55 +01:00
Jyri Sarha 87c1936426 ASoC: omap-pcm: Move omap-pcm under include/sound
Make including the omap-pcm.h outside sound/soc/omap more convenient.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-26 15:32:32 +01:00
Arnd Bergmann 24fc81d5fe ASoC: davinci: add dependencies for SND_SOC_TLV320AIC3X
This codec requires I2C to be enabled, so any other option
that selects it should also depend on I2C.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Xia Kaixu <kaixu.xia@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-30 20:29:39 -07:00
Peter Ujfalusi b6bb370956 ASoC: davinci-mcasp: Convert to use devm_snd_soc_register_component()
It allows to remove code from the cleanup paths.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-22 12:51:22 +01:00
Peter Ujfalusi 70e7a023cc ASoC: davinci-pcm: Convert to use devm_snd_soc_register_platform()
Remove the cleanup code related to the platform from the DAI drivers at the
same time to avoid breakage.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-22 12:51:22 +01:00
Peter Ujfalusi d5c6c59a9d ASoC: davinci-mcasp: Update MCASP_VERSION_4 platform driver registration
Version 4 of McASP is using omap-pcm as platform driver and the omap-pcm
platform need to be registered using the cpu dai's device.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-18 18:03:02 +01:00
Peter Ujfalusi 40448e5e97 ASoC: davinci-mcasp: Do not touch 0x04 register above McASP_VERSION_2
This register is not defined in TI81xx and on AM335x/AM437x it is the
SYSCONFIG register which should not be touched by drivers since it is
related to PM and handled by the generic PM code.
This register write was there since the first time the davinci-mcasp driver
was appeared in the kernel.
The reason why it did not caused any issues on AM335x/AM437x is that it sets
bit 1 in SYSCONFIG register which in turn will enable the smart-idle mode.
This is the default mode and this is the mode McASP should be in also when
in use.
On TI81xx the register is not defined.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 20:45:33 +01:00
Peter Ujfalusi 3c25f916d3 ASoC: davinci-mcasp: Remove excess empty lines from davinci_mcasp_set_dai_fmt()
To make the code look uniform.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:24 +01:00
Peter Ujfalusi 423761e0ca ASoC: davinci-mcasp: Support for LEFT_J format
Configuration for LEFT_J format.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:24 +01:00
Peter Ujfalusi ffd950f75d ASoC: davinci-mcasp: Add support for I2S format
The FS needs to be inverted in McASP compared to other supported formats.
Use a flag to indicate if the FS needs to be inverted.
At the same time fail when non supported format is asked since the default
case was anyways configuring McASP to a not valid format.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:24 +01:00
Peter Ujfalusi 83f12503bd ASoC: davinci-mcasp: Move the FS polarity change out from the switch case
FS polarity can be either rising or falling edge in McASP. Instead of
accessing the registers in every switch/case set a flag and write the
registers after the switch for the invert configuration.
This change will help when adding support for more formats also.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:24 +01:00
Peter Ujfalusi 188edc59c2 ASoC: davinci-mcasp: Support for DSP_A format
DSP_A is like DSP_B mode but with one bit delay after the FS.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:24 +01:00
Peter Ujfalusi 6dfa9a4e6a ASoC: davinci-mcasp: Format data delay configuration enhancement
Use intermediate variable for the data delay needed for the specific format
and write the register after the format configuration at once.
This will help to control the number of lines as support for more formats
going to be added.
Also fixes a case when we switch between two formats with different delay
requirements.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:24 +01:00
Peter Ujfalusi 33445643c3 ASoC: davinci-mcasp: Fine tune and correct the DMA burst configuration
When the AFIFO is not enabled but more than one serializers are used the DMA
need to transfer number of words equal to active serializers when a DMA
request is generated.
When configuring the burst for the DMA avoid using value '1' for the burst
since it is going to enable additional logic in the DMA drivers. Burst '1'
means that the DMA should send/receive one word per DMA requests.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:11 +01:00
Peter Ujfalusi dd093a0f19 ASoC: davinic-mcasp: Adopt the AFIFO/DMA configuration to the stream (dynamic depth)
Configure the AFIFO numevt parameter based on the requested tx/rx_numevt,
active serializers and period size in words.
In this way McASP can adopt it's (and the DMA) configuration runtime and
can pick the most optimal setup which satisfy the parameters.
This way we do not need to place any constraint on the stream itself,
allowing application greater freedom on how they want to set up ALSA.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:11 +01:00
Peter Ujfalusi 5f04c603a5 ASoC: davinci-mcasp: Configure the AFIFO and DMA burst size at the same place
Move the dma_params->fifo_level and dma_data->maxburst configuration to the
mcasp_common_hw_param() function where we configure the AFIFO registers.
It makes the code regarding to AFIFO and DMA configuration more easy to
follow since it is now clear how the AFIFO and how the DMA is going to be
configured.
Previously this has been done in two functions using a bit different
calculation form - which ended up with the same result in both case at the
end, but it was confusing.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:11 +01:00
Peter Ujfalusi 0bf0e8aece ASoC: davinci-mcasp: Simplify and clean up the AFIFO configuration code
We can have more linear code flow by using variables in
mcasp_common_hw_param() related to the AFIFO configuration.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:11 +01:00
Peter Ujfalusi f5b02b4a2c ASoC: davinci-mcasp: Fix debug typo in davinci_mcasp_hw_params()
requred -> required

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:11 +01:00
Peter Ujfalusi d5902f6936 ASoC: davinci-mcasp: Assign the dma_data earlier in dai_probe callback
Set up the playback_dma_data/capture_dma_data for the dai at probe
time since the generic dmaengine PCM stack needs to have access to
this information early.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:10 +01:00
Peter Ujfalusi 1a95d8d09e ASoC: davinci-pcm: Add empty functions for !CONFIG_SND_DAVINCI_SOC builds
To save drivers using davinci-pcm and edma-pcm the need to fiddle with
!CONFIG_SND_DAVINCI_SOC in their code.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:24:10 +01:00
Peter Ujfalusi 74ddd8c40d ASoC: davinci-mcasp: Fix bit clock polarity settings
IB_NF, NB_IF and IB_IF configured the bc polarity incorrectly. The receive
polarity was set to the same edge as the TX in these cases.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-08 12:56:45 +01:00
Peter Ujfalusi 8de131f2e6 ASoC: davinci-mcasp: Provide correct filter_data for dmaengine for non-DT boot
When we boot with non-DT mode the damengine will need the channel number and
a filter function in order to get the channel.
The filter_data is filled in the DAI driver while the filter_function will
be provided by the edma-pcm driver.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-17 16:21:36 +00:00
Peter Ujfalusi 58726f58a6 ASoC: davinci: Add edma dmaengine platform driver
Platform driver glue for SoC using eDMA3 to use dmaengine PCM.
The maximum number of periods need to be limited to 19 since the
edma dmaengine driver limits the paRAM slot use for audio at
in cyclic mode.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-17 16:21:06 +00:00
Lars-Peter Clausen d343a660d3 ASoC: davinci-evm: Register machine level DAPM elements with the card
Machine level DAPM widgets and routes should be registered in the card's DAPM
context, rather than in the CODEC's context.

While we are at it also drop the snd_soc_dapm_enable_pin() calls, since pins are
enabled by default and also turn the snd_soc_dapm_disable_pin() calls into
snd_soc_dapm_nc_pin() calls for unconnected pins.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-13 19:11:19 +00:00
Peter Ujfalusi 64ebdec36a ASoC: davinci-mcasp: Rename the pointer to davinci dma_params as dma_params
It is quite confusing to name the pointer to davinci_pcm_dma_params as
dma_data. Rename the pointer to avoid confusion.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-09 08:33:53 +00:00
Peter Ujfalusi 790bb94b56 ASoC: davinci-mcasp: Remove long lines from suspend/resume callbacks
Move the context register storage behind of a struct and use a pointer to
it in the suspend/resume callbacks to remove the long lines.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-03 18:26:59 +00:00
Peter Ujfalusi d1debafc38 ASoC: davinci-mcasp: Rename platform data struct
Rename the struct for the platform data:
snd_platform_data -> davinci_mcasp_pdata

Since we have users under arch/arm/mach-davinci/ for this struct add
temporary define to avoid breakage. The arch code can be updated later to
use the new struct name.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-03 18:26:59 +00:00
Peter Ujfalusi a7e46bd9a1 ASoC: davinci-mcasp: Code cleanup in davinci_mcasp_hw_params()
Rearrange the code in the function for readability.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-03 18:26:59 +00:00
Peter Ujfalusi 135014adc6 ASoC: davinci-mcasp: Move pm callbacks from platform device to soc_dai_driver
Handle the PM callbacks via the ASoC core instead of device core.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-31 16:38:28 +00:00
Peter Ujfalusi 0f7d9a635b ASoC: davinci-mcasp: Return value handling cleanup for mcasp_common_hw_param()
Take the return value from mcasp_common_hw_param() and use that in case of
error.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-31 16:38:24 +00:00
Mark Brown 61d384aed4 Merge branch 'fix/davinci' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into HEAD 2014-01-31 16:38:20 +00:00
Peter Ujfalusi fb6d208d54 ASoC: davinci-evm: Add pm callbacks to platform driver
Set snd_soc_pm_ops for the pm ops.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-31 16:21:24 +00:00
Peter Ujfalusi 1d17a04ef2 ASoC: davinci-mcasp: Consolidate pm_runtime_get/put() use in the driver
The use of pm_runtime in trigger() callback is not correct and it will lead
to unbalanced power.usage_count.
The only place which might need to call pm_runtime is the set_fmt callback.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-31 16:19:19 +00:00
Peter Ujfalusi 2c56c4c27c ASoC: davinci-mcasp: Configure xxTDM, xxFMT and xxFMCT registers synchronously
These registers can be configured synchronously for playback and capture.
Furthermore when McASP is in master and sync mode the capture operation
needs the TX path to be configured in order to be able to provide the needed
clocks for the bus.
xxFMT and xxFMCT registers has been already configured for both TX and RX
other places in the driver.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-31 15:51:20 +00:00
Peter Ujfalusi 662ffae9ed ASoC: davinci-mcasp: Harmonize the sub hw_params function names
Instead of
davinci_hw_common_param - for common, I2S/DIT mode settings
davinci_hw_dit_param - for DIT protocol configuration
davinci_hw_param - for I2S (and compatible protocols)

Use the following names:
mcasp_common_hw_param, mcasp_dit_hw_param and mcasp_i2s_hw_param.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-31 15:51:20 +00:00
Jyri Sarha ab8b14b6d8 ASoC: davinci-mcasp: Set BCLK divider if McASP is BCLK master
Make BCLK divider setting implicite in hw_params call if McASP device
is the bit clock master on the audio serial bus.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-27 20:45:57 +00:00
Jyri Sarha 5ad8865b00 ASoC: davinci-evm: Add named clock reference to DT bindings
The referenced clock is used to get codec clock rate and the clock is
disabled and enabled in startup and shutdown snd_soc_ops call
backs. The change is also documented in DT bindigs document.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
cc: bcousson@baylibre.com
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-27 18:09:40 +00:00
Lars-Peter Clausen f52c919215 ASoC: davinci: Don't set unused struct snd_pcm_hardware fields
The ASoC core assumes that the PCM component of the ASoC card transparently
moves data around and does not impose any restrictions on the memory layout or
the transfer speed. It ignores all fields from the snd_pcm_hardware struct for
the PCM driver that are related to this. Setting these fields in the PCM driver
might suggest otherwise though, so rather not set them.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-24 12:01:17 +00:00
Peter Ujfalusi ae726e9394 ASoC: davinci-mcasp: Support for fck reparenting
Optional DT property to specify the desired parent clock for the McASP fck
clock.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:25 +00:00
Peter Ujfalusi b14899da9d ASoC: davinci-mcasp: Correct am33xx snd_platform_data name
An earlier patch overlooked this when the compatible has been changed from
omap2 -> am33x.
Rename omap2_mcasp_pdata to am33xx_mcasp_pdata.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:17 +00:00
Peter Ujfalusi f68205a7f8 ASoC: davinci-mcasp: Change IO functions parameter list
Instead of passing __iomem address (mcasp->base + register_offset) pass
the main mcasp structure and only access the mcasp->base in the low level
IO functions.
In most cases this helps with code readability and it will make it easier
to switch over to regmap in the future.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:16 +00:00
Peter Ujfalusi 453c499028 ASoC: davinci-mcasp: Support for McASP version found in DRA7xx
The IP in DRA7xx is similar to the IP found in TI81xxAM3xxx/AM4xxx type of
SoCs but it is is integrated with sDMA instead of eDMA. The suitable pcm
driver for DRA7xx is the omap-pcm driver which is using dmaengine.
In the driver we can configure both dma related structures used for eDMA and
sDMA. The only thing we need to make sure that we set the correct dma_data
at startup with snd_soc_dai_set_dma_data()

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:16 +00:00
Peter Ujfalusi 4dcb5a0bff ASoC: davinci-mcasp: Fix synchronous master receive mode
In synchronous mode both transmit and receive sections are using the TX
clocks. In setup like this the TX clocks need to be enabled when capture
is running.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:16 +00:00
Peter Ujfalusi cbc7956c81 ASoC: davinci-mcasp: Data source (bus) selection support
The audio data to/from McASP can be sent/received via two method:
Via the data port (preferred) or via the configuration bus.
Currently the driver assumes that all data communication will be done via
the data port.
This patch adds support for selecting the configuration port as data
interface.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:16 +00:00
Peter Ujfalusi 487dce8823 ASoC: davinci-mcasp: Simplify FIFO configuration code
The FIFO registers base address is different in dm646x compared to newer
SoCs with McASP IP. Instead of using two paths (switch/case) to handle the
difference we can simply pick the correct base address beforehand and use
offsets to address the register we need to configure.
With this change the indentation depth can be reduced as well.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:16 +00:00
Peter Ujfalusi 8f113b77b5 ASoC: davinci-mcasp: Be consistent with the use of base in davinci_mcasp_set_dai_fmt
Replace mcasp->base use with plain base in the davinci_mcasp_set_dai_fmt()
function since it has been already used by the remaining part of the function.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:16 +00:00
Peter Ujfalusi 70091a3e6a ASoC: davinci-mcasp: Rename private struct and it's users (dev -> mcasp)
Rename the private struct from davinci_audio_dev to davinci_mcasp.
Change the local use of the pointer to this struct from *dev to *mcasp.

The aim is to have better readable code for the first look since having
dev->xxxx in the code when using the local private struct is a bit
surprising.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:16 +00:00
Peter Ujfalusi eba0ecf067 ASoC: davinci-mcasp: Do not inline the mcasp_set_ctl_reg function
It brings no benefit to inline this function due to it's size and function.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:16 +00:00
Peter Ujfalusi 57f439b867 ASoC: davinci-mcasp: Remove unused DAVINCI_MCASP_NUM_SERIALIZER define
It is not used in the code.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:16 +00:00
Peter Ujfalusi 21400a72d6 ASoC: davinci-mcasp: Move private struct definition to source file
Since it is a private struct strictly used by the davinci-mcasp driver it
can be moved from header file to the source file.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:15 +00:00
Peter Ujfalusi 02e08d9b6b ASoC: davinci-mcasp: Move register definitions to header file
It is better for readability to have the register definitions out from the
source file.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:15 +00:00
Peter Ujfalusi 58e48d9774 ASoC: davinci-mcasp: Correct dai driver struct initialization for 2nd dai
Add .name when assigning the dai name.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:15 +00:00
Peter Ujfalusi 18f9350662 ASoC: davinci-mcasp: Remove unused DAVINCI_MCASP_I2S/DIT_DAI defines
These are not used, probably leftovers from the past.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:15 +00:00
Peter Ujfalusi ed29cd5e8d ASoC: davinci-mcasp: Move DAVINCI_MCASP_RATE from header to source file
It is not used outside of the .c file.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:15 +00:00
Peter Ujfalusi d38970e136 ASoC: davinci-evm: Switch to use .dai_fmt of snd_soc_dai_link(s)
Specify the dai formats to use within the snd_soc_dai_link structures. In
this way we can remove the code dealing with the dai format configuration
from the machin driver.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:15 +00:00
Peter Ujfalusi 7b6a772932 ASoC: davinci-evm: Do not include davinci-mcasp.h
There's no need to include this header file here.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:15 +00:00
Peter Ujfalusi a42efd97f7 ASoC: davinci: kconfig: Prepare for AM43xx support
AM43xx have the same McASP IP as AM33xx and both platform uses eDMA. Modify
the Kconfig so it will be possible to add audio support for AM43xx based
boards later.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:15 +00:00
Peter Ujfalusi c3238a4c05 ASoC: davinci: Kconfig/Makefile: Generic EVM machine driver related cleanup
We have several boards using the same machine driver for audio support.
All of these machines can select a generic machine driver config option to
build the needed driver while keeping the config options used within the
driver for compile time code path selection.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:15 +00:00
Peter Ujfalusi 860d0c0dd2 ASoC: davinci: Kconfig: Remove help section for SND_DAVINCI_SOC
The help text is misleading and the prompt itself explains the purpose of
this config section.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-10 11:22:14 +00:00