Add q6apm compress DAI callbacks for setting params and metadata to support
compress offload playback.
Co-developed-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230619101653.9750-11-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Add q6apm trigger and pointer compress DAI callbacks to support
compress offload playback.
Co-developed-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230619101653.9750-10-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Add q6apm get compress DAI capabilities and codec capabilities callbacks
to support compress offload playback.
Co-developed-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230619101653.9750-9-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Add q6apm open and free compress DAI callbacks to support compress
offload playback.
Include compress event handler callback also.
Co-developed-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230619101653.9750-8-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Add support for setting EOS delay command and receive the
EOS response from ADSP, for seamless compress offload
playback feature.
Co-developed-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230619101653.9750-7-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Add function for setting compress params.
Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Co-developed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230619101653.9750-6-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Some of the Audioreach commands take a u32 value,
ex: PARAM_ID_MODULE_ENABLE.
It makes more sense to provide a helper function so that other new
commands can reuse this.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230619101653.9750-4-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
EOS event from dsp is currently not sent to the dai drivers, add the
missing callback.
Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230619101653.9750-3-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Add support to set backend params such as sampling rate and
number of channels using backend params fixup callback.
Also add no pcm check for hardware params constraints setting.
Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230619101653.9750-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The nau8822 codec is used on an imx6sx EVB.
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/Message-Id: <20220616040046.103524-2-hui.wang@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This is for an imx6sx EVB which has a nau8822 codec connects to the
SSI2 interface, so add the nau8822 support in this machine driver.
Because the codec driver nau8822.c doesn't handle mclk enabling, here
adding a codec_priv->mclk for nau8822 and similar codecs which need to
enable the mclk in the machine driver, and enable the mclk in the
card_late_probe() conditionally.
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/Message-Id: <20220616040046.103524-1-hui.wang@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
smatch reports
sound/soc/codecs/max98388.c:890:39: warning: symbol
'soc_codec_dev_max98388' was not declared. Should it be static?
This variable is only used in its defining file, so it should be static.
Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/Message-Id: <20230617122635.3225639-1-trix@redhat.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>:
Couple of improvements on virtual_widget support, firmware trace free,
IPC payload dump, duplicated code in suspend and MeteorLake primary
code support.
The module loads firmware so add MODULE_FIRMWARE macros to provide that
information via modinfo.
Signed-off-by: Juerg Haefliger <juerg.haefliger@canonical.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230616115432.1011707-1-juerg.haefliger@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Convert the binding to DT schema format.
Since commit 514b044cba ("ASoC: tlv320aic32x4: Model PLL in CCF")
clocks & clock-names = "mclk" is mandatory, it has been added to required
properties as well. '#sound-dai-cells' is added for reference from
simple-audio-card.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230616083549.2331830-1-alexander.stein@ew.tq-group.com
Signed-off-by: Mark Brown <broonie@kernel.org>
DIV_ROUND_CLOSEST() does not work on 64-bit variables when building for
a 32-bit target:
ld.lld: error: undefined symbol: __udivdi3
>>> referenced by loongson_i2s.c
>>> sound/soc/loongson/loongson_i2s.o:(loongson_i2s_hw_params) in archive vmlinux.a
Use DIV_ROUND_CLOSEST_ULL() instead.
Fixes: d24028606e ("ASoC: loongson: Add Loongson ASoC Sound Card Support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230616090156.2347850-4-arnd@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The new driver fails to build when PCI is disabled:
WARNING: unmet direct dependencies detected for SND_SOC_LOONGSON_I2S_PCI
Depends on [n]: SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && (LOONGARCH || COMPILE_TEST [=y]) && PCI [=n]
Selected by [y]:
- SND_SOC_LOONGSON_CARD [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && (LOONGARCH || COMPILE_TEST [=y])
sound/soc/loongson/loongson_i2s_pci.c:167:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
module_pci_driver(loongson_i2s_driver);
Add the appropriate Kconfig dependency.
Fixes: d24028606e ("ASoC: loongson: Add Loongson ASoC Sound Card Support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230616090156.2347850-3-arnd@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Build testing without CONFIG_PM_SLEEP causes a warning:
sound/soc/loongson/loongson_i2s.c:246:12: error: unused function 'i2s_suspend' [-Werror,-Wunused-function]
sound/soc/loongson/loongson_i2s.c:255:12: error: unused function 'i2s_resume' [-Werror,-Wunused-function]
Use the modern SYSTEM_SLEEP_PM_OPS() instead of the old one to avoid this.
Fixes: d24028606e ("ASoC: loongson: Add Loongson ASoC Sound Card Support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230616090156.2347850-2-arnd@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The PM functions are never referenced when CONFIG_PM_SLEEP is
disabled:
sound/soc/codecs/max98388.c:854:12: error: unused function 'max98388_suspend' [-Werror,-Wunused-function]
static int max98388_suspend(struct device *dev)
^
sound/soc/codecs/max98388.c:864:12: error: unused function 'max98388_resume' [-Werror,-Wunused-function]
static int max98388_resume(struct device *dev)
Fix this by using the modern SYSTEM_SLEEP_PM_OPS() macro in place of
the deprecated SET_SYSTEM_SLEEP_PM_OPS() version, and use pm_sleep_ptr()
to hide the entire structure as well.
On a related note, the of_match_ptr() and ACPI_PTR() macros have the same
problem and would cause the device id table to be unused when the driver
is built-in and the respective subsystems are disabled. This does not
cause warnings unless -Wunused-const-variable is passed to the compiler,
but it's better to just not use the macros at all here.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230616090156.2347850-1-arnd@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Set primary core mask and refcount.
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230616100039.378150-9-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Over time the function has changed and now there is no need to have the
duplicated sof_fw_trace_suspend() and sof_suspend_clients() in the
if (target_state == SOF_DSP_PM_D0) branch.
Remove it and add a simple check with a single goto statement.
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Paul Olaru <olarupaulstelian97@gmail.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230616100039.378150-8-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Use the SOF_DBG_DUMP_IPC_MESSAGE_PAYLOAD flag to print the message payload
instead of the DEBUG_VERBOSE, which would need code modification and kernel
re-compilation.
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230616100039.378150-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Dump the IPC message payload if BIT(11) of sof_debug is set and the message
contains more data than just a header.
The header size differs between TX and RX and in case of set_get_data, the
header is always the reply header for the message regardless if it is TX
or RX.
The use of printk(KERN_DEBUG "..."); is on purpose to keep the dmesg output
tidy.
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230616100039.378150-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We only print out the header information of an IPC message in debug level,
either in verbose or non verbose way (Kconfig option).
On top of the header information the message itself can help reproducing
and identifying issues.
BIT(11) can be used to request a message payload dump if it is supported
by the IPC implementation.
Since IPC message payload printing is only implemented for IPC4, the flag
will not have any effect to IPC3 for now.
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230616100039.378150-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The shutdown is called on reboot/shutdown of the machine.
At this point the firmware tracing cannot be used anymore but in case of
IPC3 it is using and keeping a DMA channel active (dtrace).
For Tiger Lake platforms we have a quirk in place to fix rare reboot issues
when a DMA was active before rebooting the system.
If the tracing is enabled this quirk will be always used and a print
appears on the kernel log which might be misleading or not even correct.
Release the fw tracing before executing the shutdown to make sure that this
known DMA user is cleared away.
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230616100039.378150-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Virtual widgets are added for the purpose of showing connections between
aggregated DAIs in SDW topologies. However, we shouldn't touch them in
SOF.
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230616100039.378150-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Testing virtual widget is required in many functions. No function
changed in this commit.
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230616100039.378150-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The audio card uses loongson I2S controller present in
7axxx/2kxxx chips to transfer audio data.
On loongson platform, the chip has only one I2S controller.
Signed-off-by: Yingkun Meng <mengyingkun@loongson.cn>
Link: https://lore.kernel.org/r/20230614122659.3402788-1-mengyingkun@loongson.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
The Loongson ASoC Sound Card is a general ASoC DAI Link driver that
can be used for Loongson CPU DAI drivers and external CODECs.
The driver supports the use of ACPI table to describe device resources.
On loongson 7axxx platforms, the audio device is an ACPI device.
Signed-off-by: Yingkun Meng <mengyingkun@loongson.cn>
Link: https://lore.kernel.org/r/20230614122240.3402762-1-mengyingkun@loongson.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Added Analog Devices MAX98388 amplifier driver.
MAX98388 provides a PCM interface for audio data and a standard I2C
interface for control data communication.
Signed-off-by: Ryan Lee <ryans.lee@analog.com>
Link: https://lore.kernel.org/r/20230613060945.183128-2-ryan.lee.analog@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add dt-bindings information for Analog Devices MAX98388 I2S Amplifier
Signed-off-by: Ryan Lee <ryans.lee@analog.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230613060945.183128-1-ryan.lee.analog@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Loongson I2S controller is found on 7axxx/2kxxx chips from loongson,
it is a PCI device with two private DMA controllers, one for playback,
the other for capture.
The driver supports the use of DTS or ACPI to describe device resources.
Signed-off-by: Yingkun Meng <mengyingkun@loongson.cn>
Link: https://lore.kernel.org/r/20230615122718.3412942-1-mengyingkun@loongson.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Mark Brown <broonie@kernel.org>:
The RealTek SoundWire CODECs don't support bulk register operations so
they gain no advantage from using the rbtree cache, convert them to use
the maple tree cache instead - it is more modern.
simple_dai_props has cpus/codecs/platforms. These pointer were used
for dai_link before, but are allocated today since
commit 050c7950fd ("ASoC: simple-card-utils: alloc dai_link
information for CPU/Codec/Platform").
We don't need to keep it anymore. This patch removes these.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87bkhhxpc6.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Current Audio Graph Card/Card2 implements asoc_simple_parse_dai()
on each driver, but these are same function.
This patch share it as asoc_graph_parse_dai().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87o7lihpvy.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add support for IPC tx_message with a reply_size set to zero,
return zero when message reply_size is zero at acp_dsp_ipc_get_reply().
Signed-off-by: Venkata Prasad Potturu <venkataprasad.potturu@amd.com>
Link: https://lore.kernel.org/r/20230614103707.2246296-1-venkataprasad.potturu@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The rt1318 can only support single register read and write operations
so does not benefit from block writes. This means it gets no benefit from
using the rbtree register cache over the maple tree register cache so
convert it to use maple trees instead, it is more modern.
Tested-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230609-asoc-rt-sdw-maple-v1-8-85ee50c93905@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The rt1316 can only support single register read and write operations
so does not benefit from block writes. This means it gets no benefit from
using the rbtree register cache over the maple tree register cache so
convert it to use maple trees instead, it is more modern.
Tested-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230609-asoc-rt-sdw-maple-v1-7-85ee50c93905@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The rt1308 can only support single register read and write operations
so does not benefit from block writes. This means it gets no benefit from
using the rbtree register cache over the maple tree register cache so
convert it to use maple trees instead, it is more modern.
Tested-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230609-asoc-rt-sdw-maple-v1-6-85ee50c93905@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The rt722 can only support single register read and write operations so
does not benefit from block writes. This means it gets no benefit from
using the rbtree register cache over the maple tree register cache so
convert it to use maple trees instead, it is more modern.
Tested-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230609-asoc-rt-sdw-maple-v1-5-85ee50c93905@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The rt715 can only support single register read and write operations so
does not benefit from block writes. This means it gets no benefit from
using the rbtree register cache over the maple tree register cache so
convert it to use maple trees instead, it is more modern.
Tested-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230609-asoc-rt-sdw-maple-v1-4-85ee50c93905@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The rt712 can only support single register read and write operations so
does not benefit from block writes. This means it gets no benefit from
using the rbtree register cache over the maple tree register cache so
convert it to use maple trees instead, it is more modern.
Tested-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230609-asoc-rt-sdw-maple-v1-3-85ee50c93905@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The rt711 can only support single register read and write operations so
does not benefit from block writes. This means it gets no benefit from
using the rbtree register cache over the maple tree register cache so
convert it to use maple trees instead, it is more modern.
Tested-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230609-asoc-rt-sdw-maple-v1-2-85ee50c93905@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The rt700 can only support single register read and write operations so
does not benefit from block writes. This means it gets no benefit from
using the rbtree register cache over the maple tree register cache so
convert it to use maple trees instead, it is more modern.
Tested-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230609-asoc-rt-sdw-maple-v1-1-85ee50c93905@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Bard Liao <yung-chuan.liao@linux.intel.com>:
Currently, ASoC supports dailinks with the following mappings:
1 cpu DAI to N codec DAIs
N cpu DAIs to N codec DAIs
But the mapping between N cpu DAIs and M codec DAIs is not supported.
The reason is that we didn't have a mechanism to map cpu and codec DAIs
This series suggests a new snd_soc_dai_link_codec_ch_map struct in
struct snd_soc_dai_link{} which provides codec DAI to cpu DAI mapping
information used to implement N cpu DAIs to M codec DAIs support.
And add the codec_ch_maps to SOF SoundWire machine driver.
