796730 Commits

Author SHA1 Message Date
22cc062c4d dt-bindings: sound: omap-mcpdm: Update documentation for pdmclk
McPDM module receives it's functional clock from external source. This
clock is the pdmclk provided by the twl6040 audio IC. If the clock is not
available all register accesses to McPDM fails and the module is not
operational.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-28 15:19:31 +00:00
80e733fda4 ASoC: qcom: sdm845: Create and setup jack in init callback
Add a callback for init ops on dai_link to create and setup jack.

Signed-off-by: Rohit kumar <rohitkr@codeaurora.org>
Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-28 15:19:30 +00:00
7f1806ebb0 ASoC: qcom: sdm845: Add board specific dapm widgets
Add board specific dapm widgets so these widgets can be used
in the route.

Signed-off-by: Rohit kumar <rohitkr@codeaurora.org>
Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-28 15:19:08 +00:00
bc18454985 ASoC: davinci-mcasp: Implement configurable dismod handling
If the dismod is specified in the DT node, use the specified custom value
to configure the drive on state of the inactive TX slots.

If the dismod is not present or booted in legacy mode, the dismod is set
to low as it was the original behavior.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-28 12:41:31 +00:00
a3641b30c1 ASoC: davinci-mcasp: Document dismod optional property
The dismod property can be used to specify the drive on level of inactive
TX slots.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-28 12:41:21 +00:00
ca3d943334 ASoC: davinci-mcasp: Update PDIR (pin direction) register handling
When McASP is master and the PDIR for the clock pins are configured as
outputs before the clocking is configured it will output whatever clock
is generated at the moment internally.
The clock will switch to the correct rate only when the we start the clock
generators.

To avoid this we must only set the pin as output after the clock is
configured and enabled.

AXR pins configured as outputs behaves somehow interesting as well:
when McASP is not enabled and the pin is selected as output it will not
honor the DISMOD settings for the inactive state, but will pull the pin
down.

Add a new bitfield and mark the pins there which needs to be output and
set the pins only at the time when they will behave correctly.

On stream stop configure the pins back to input which makes them to obey
the global pin configuration regarding to pull up/down.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-28 12:40:57 +00:00
1003c27acf ASoC: davinci-mcasp: Clear TXSTAT register before activating serializers
Follow the guideline from the TRM:
Before starting, clear the respective transmitter and receiver status
registers

To avoid stale state stored in the status registers.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-28 12:40:56 +00:00
61f94ee4a7 ASoC: Intel: Skylake: Add FW reply for MCLK/SCLK IPC
If mclk/sclk is already running, FW responds with IPC reply MCLK/SCLK
already running. Add these to the IPC reply lookup table.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Sriram Periyasamy <sriramx.periyasamy@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-28 12:36:44 +00:00
aa15679b2d ASoC: Intel: Skylake: Make DSP replies more human readable
Add more meaning to the IPC replies for easy debugging. Replace the switch
case with a lookup table to lookup for the IPC replies and print in human
readable form.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Sriram Periyasamy <sriramx.periyasamy@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-28 12:36:43 +00:00
933662f289 ASoC: max9867: Fix whitespace
Minor changes to match coding style.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-26 12:42:58 +00:00
2708bccf9c ASoC: soc.h: makes snd_soc_of_parse_audio_prefix() inline
commit 3b7103562c03c ("ASoC: soc-core: add
snd_soc_of_parse_node_prefix()") maked snd_soc_of_parse_audio_prefix()
as #define. But it'd be better to make this a static inline rather than
a #define. It helps with error messages and type safety.
This patch makes it inline.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-26 12:23:22 +00:00
7121779fec ASoC: rsnd: tidyup for SSIU subnode
commit da48a6eb82ea2 ("ASoC: rsnd: add SSIU BUSIF support for
Document") updated Documentation for SSIU, but 1) we want to
keep old/deprecated DMA description, 2) it is missing SSIU
subnode properties. This patch tidyup these

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-26 12:22:57 +00:00
83b12c2e1d ASoC: amd: Fix a NULL vs IS_ERR() check in probe
The platform_device_register_full() function doesn't return NULL, it
returns error pointers.

Fixes: 7894a7e7ea3d ("ASoC: amd: create ACP3x PCM platform device")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-26 12:22:56 +00:00
64ef0817b9 ASoC: audio-graph-card: tidyup define position
commit f986907c9225 ("ASoC: audio-graph-card: add widgets and routing for
external amplifier support") added new function
asoc_graph_card_outdrv_event(), but the inserted position breaks
define area. This patch tidyup it

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-23 14:01:56 +00:00
c3830f1a00 ASoC: audio-graph-card: tidyup typo SND_AUDIO_GRAPH_CARD
1 "simple" is enough on Kconfig help

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-23 14:01:55 +00:00
338d7159c4 ASoC: audio-graph-scu-card: tidyup asoc_simple_card_parse_daifmt() timing
Current audio-graph-scu-card driver is parsing codec position for DPCM
and consider DAI format. But, current operation is doing totally pointless,
because 1) asoc_simple_card_parse_daifmt() will be called not only for 1st
codec on current implementation, and it will be used as fixed format
2) it should be called for each CPU/Codec pair.
Let's tidyup asoc_simple_card_parse_daifmt() timing.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-23 14:01:54 +00:00
7f07a39acf ASoC: audio-graph-scu-card: tidyup "convert-rate/channels" parsing
audio-graph-scu-card.c is supporting "convert-rate/channels" which is
used for DPCM.
But, sound card might have multi codecs, and each codec might need
each convert-rate/channels.

This patch supports each codec's convert-rate/channles support.
top node convert-rate/channels will overwrite settings if exist.

It can't support each codec's convert-rate/channels if sound card had
multi codecs without this patch.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-23 14:01:53 +00:00
df97651773 ASoC: audio-graph-scu-card: tidyup "convert-rate/channels" parsing on Doc
audio-graph-scu-card.c is supporting "convert-rate/channels" which is
used for DPCM.
But, sound card might have multi codecs, and each codec might need
each convert-rate/channels.

This patch supports each codec's convert-rate/channles support.
top node convert-rate/channels will overwrite settings if exist.

It can't support each codec's convert-rate/channels if sound card had
multi codecs without this patch.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-23 14:01:52 +00:00
2624fc7882 ASoC: audio-graph-scu-card: tidyup "prefix" parsing
audio-graph-scu-card.c is supporting "prefix" which is used to avoid
DAI naming conflict when CPU/Codec matching.
But, sound card might have multi sub-devices, and each codec might need
each prefix.

Now, ASoC is supporting snd_soc_of_parse_node_prefix(), let's support
it on audio-graph-scu-card, too. It is keeping existing DT style.

It can't support each codec's prefix if sound card had multi sub-devices
without this patch.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-23 14:01:51 +00:00
264d15035e ASoC: audio-graph-scu-card: tidyup "prefix" parsing on Doc
audio-graph-scu-card.c is supporting "prefix" which is used to avoid
DAI naming conflict when CPU/Codec matching.
But, sound card might have multi sub-devices, and each codec might need
each prefix.

Now, ASoC is supporting snd_soc_of_parse_node_prefix(), let's support
it on audio-graph-scu-card, too. It is keeping existing DT style.

It can't support each codec's prefix if sound card had multi sub-devices
without this patch.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-23 14:01:50 +00:00
ca8d95c709 ASoC: simple-scu-card: tidyup "prefix" parsing
simple-scu-card.c is supporting "prefix" which is used to avoid
DAI naming conflict when CPU/Codec matching.
But, sound card might have multi sub-devices, and each codec might need
each prefix.

Now, ASoC is supporting snd_soc_of_parse_node_prefix(), let's support
it on audio-graph-scu-card, too. It is keeping existing DT style.

It can't support each codec's prefix if sound card had multi sub-devices
without this patch.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-23 14:01:49 +00:00
f94b0f7f92 ASoC: simple-scu-card: tidyup "prefix" parsing on Doc
simple-scu-card.c is supporting "prefix" which is used to avoid
DAI naming conflict when CPU/Codec matching.
But, sound card might have multi sub-devices, and each codec might need
each prefix.

Now, ASoC is supporting snd_soc_of_parse_node_prefix(), let's support
it on audio-graph-scu-card, too. It is keeping existing DT style.

It can't support each codec's prefix if sound card had multi sub-devices
without this patch.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-23 14:01:48 +00:00
3b7103562c ASoC: soc-core: add snd_soc_of_parse_node_prefix()
Current ASoC has snd_soc_of_parse_audio_prefix() to get codec_conf
settings from DT which is used to avoid DAI naming conflict when
CPU/Codec matching.

Currently, it is parsing from "top node",
but, we want to parse from "each sub node" if sound card had multi
cpus/codecs.

This patch adds new snd_soc_of_parse_node_prefix() to allow parsing
settings from selected node.
It is keeping existing snd_soc_of_parse_audio_prefix() by using macro.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-23 14:01:47 +00:00
6debd01a74 ASoC: simple-amplifier: add VCC regulator widget
Amplifier may have assosicated regulator, so add a widget for it
and appropriate route.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-23 14:01:41 +00:00
8e84de031a ASoC: dt-bindings: add regulator property to simple amplifier
Amplifier may have associated regulator, so add a property for it.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-23 14:01:40 +00:00
ca0412a057 ASoC: sunxi: sun50i-codec-analog: Add support for cpvdd regulator supply
On the Allwinner A64 SoCs, the audio codec has a built-in headphone
amplifier. This amplifier has a power supply separate from the rest of
the analog audio circuitry, labeled cpvdd.

This patch adds a DAPM widget for this supply, and ties it to the
headphone amp widget.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-23 14:01:34 +00:00
21dd30200e ASoC: dt-bindings: sun50i-codec-analog: Add headphone amp regulator supply
On the Allwinner A64 SoC, the audio codec has a built-in headphone
amplifier. This amplifier has a power supply separate from the rest of
the analog audio circuitry.

Add a regulator supply property to handle this.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-23 14:01:16 +00:00
33404f3f10 ASoC: simple_card_utils: remove "option" from asoc_simple_card_of_parse_routing()
asoc_simple_card_of_parse_routing() had "option" parameter
to consider error handling, but it is very pointless parameter.
Let's remove it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-21 13:28:49 +00:00
a48bf02b35 ASoC: simple-card-utils: tidyup asoc_simple_card_parse_convert()
Current simple-card-utils has asoc_simple_card_parse_convert() to parse
convert channel/rate for be_hw_params_fixup.
But, it is parsing from top of node.

If sound card had multi subnode, we need to parse it from each sub node.
This patch tidyup asoc_simple_card_parse_convert() to allow parsing
settings from each node.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-21 13:28:34 +00:00
f31a171055 ASoC: simple-card-utils: accept NULL parameter on asoc_simple_card_xxx()
If simple-card-utils accept NULL pointer on asoc_simple_card_xxx(),
each driver code will be more simple.
Let's accept NULL pointer.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-21 13:28:19 +00:00
c0f4697c5d ASoC: simple-card-utils: remove asoc_simple_card_clk_register()
asoc_simple_card_clk_register() is used but only 1 user,
and very pointless code. Let's remove it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-21 13:28:05 +00:00
0ade2ccfb8 ASoC: rsnd: makes rsnd_ssi_is_dma_mode() static
ssi.c only is using rsnd_ssi_is_dma_mode().
Let's move it as static function.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-21 13:27:35 +00:00
331e875432 ASoC: rsnd: tidyup rsnd_parse_connect_ssiu_compatible()
rsnd_parse_connect_ssiu_compatible() is doing
 - using rsnd_ssiu_id(), but we use it via rsnd_mod_id()
 - we can break loop if rsnd_dai_connect() was called
This patch fixup these.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-21 13:27:21 +00:00
f6c2d6026a ASoC: rsnd: Add device tree support for r8a77995
Simply document new compat strings.
There appears to be no need for a driver updates.

Signed-off-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-21 13:27:12 +00:00
992e75b3c8 ASoC: sdm845: Add support for Secondary MI2S interface
Add support to configure bit clock for secondary MI2S
TX interface.

Signed-off-by: Rohit kumar <rohitkr@codeaurora.org>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-21 13:25:48 +00:00
a1849b7dd3 ASoC: sdm845: Update slot_width for Quaternary TDM port
Change slot_width for quaternary TDM port to 16 and
update bclk rate for TDM and MI2S interfaces
accordingly.

Signed-off-by: Rohit kumar <rohitkr@codeaurora.org>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-21 13:25:33 +00:00
5a619b9e88 ASoC: Intel: use platform_data for machine drivers
For some reason we have different mechanisms for passing data to
machine drivers. Use the solution used by Atom/SST and SOF instead of
using drv_data as done by Skylake.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-20 16:58:52 +00:00
b92826fa8c ASoC: Intel: fix interface for Chromebook machine drivers
The changes for HDaudio overlooked the fact that the machine drivers
used for Chromebooks rely on the dmic number information passed as
pdata.

Add dmic_num field to standard interface and use standard interface
instead of SKL-specific one.

Also clean-up pdata definition to remove fields that are no longer
used.

Fixes: 842bb5135f10 ('ASoC: Intel: use standard interface for Hdaudio machine driver')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-20 16:56:25 +00:00
4647598cde ASoC: tlv320aic3x: Add support for CBM_CFS and CBS_CFM clocking modes
The codec can support any variation of bclk/fs master/slave configuration.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-20 15:35:04 +00:00
746dca0aeb ASoC: rt5663: Fix error handling of regulator_set_load
The default implementation of regulator_set_load returns
REGULATOR_MODE_NORMAL, which is positive.  [This was a bug which is
being fixed but the change is valid anyway -- bronie]

rt5663_i2c_probe should only do error handling when return value of
regulator_set_load is negative.
In this case, rt5663_i2c_probe should return error.

Also, consolidate err_irq into err_enable.

Fix the missing goto for temporary regmap and rt5663->regmap.

Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-16 19:19:49 -08:00
00347e4ea8 ASoC: amd: fix spelling mistake "Inavlid" -> "Invalid"
There is a spelling mistake in a dev_err message. Fix this.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-16 19:10:04 -08:00
e8d4bf8ae8 ASoC: qcom: clean up indentation, remove extraneous tab
The return statement is indented too much by one level, fix this by
removing the extraneous tab.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-16 19:08:32 -08:00
812fb75d97 ASoC: arizona: fix indentation issue with return statement
The return statement is indented incorrectly. Fix this by adding in
the missing tab.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-16 19:08:31 -08:00
6857b9d088 ASoC: tlv320dac33: clean up indentation, remove extraneous tab
The goto statement is indented too much by one level, fix this by
removing the extraneous tab.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-16 19:08:30 -08:00
7806869c6e ASoC: tlv320aic31xx: asihpi: clean up indentation, remove extraneous tab
The return statement is indented too much by one level, fix this by
removing an extraneous tab.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-16 19:08:28 -08:00
dc43d3aa04 ASoC: Convert a few more users to using %pOFn instead of device_node.name
In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Olivier Moysan <olivier.moysan@st.com>
Cc: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: alsa-devel@alsa-project.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-16 19:07:35 -08:00
276aa6d38e ASoC: rt5663: Add documentation for power supply support
rt5663 codec driver will support setting CPVDD and AVDD power supply
from device tree.

Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-16 19:07:08 -08:00
fd7de6370c ASoC: Add documentation for pcm3060 property out-single-ended
Output of pcm3060 codec may be configured as single-ended or differential

Signed-off-by: Kirill Marinushkin <kmarinushkin@birdec.tech>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-15 14:25:41 -08:00
e81a2a6d12 ASoC: rt5663: Add regulator support
Add regulator support to turn on cpvdd and avdd in probe.
If a regulator is not given from device tree, a dummy regulator will be
used.

Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-15 11:34:13 -08:00
bf897b441b ASoC: ak4118: Add support for AK4118 S/PDIF transceiver
The AK4118A is a digital audio transceiver supporting 8 input channels
at 192kHz and with 24bits resolution.
It converts the S/PDIF signal to I2S format and is configurable over I2C.

This driver introduce a minimal support of the AK4118, like selecting the
input channel, reading input frequency and detecting some errors.

Datasheet is available here:
https://www.akm.com/akm/en/file/datasheet/AK4118AEQ.pdf

Signed-off-by: Adrien Charruel <adrien.charruel@devialet.com>
Signed-off-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-15 11:33:35 -08:00