History log of /openbmc/linux/sound/soc/soc-dapm.c (Results 1 – 25 of 3044)
Revision (<<< Hide revision tags) (Show revision tags >>>) Date Author Comments
Revision tags: v6.6.67, v6.6.66, v6.6.65, v6.6.64, v6.6.63, v6.6.62, v6.6.61, v6.6.60, v6.6.59, v6.6.58, v6.6.57, v6.6.56, v6.6.55, v6.6.54, v6.6.53, v6.6.52
# ca2478a7 12-Sep-2024 Andrew Jeffery <andrew@codeconstruct.com.au>

Merge tag 'v6.6.51' into for/openbmc/dev-6.6

This is the 6.6.51 stable release


Revision tags: v6.6.51, v6.6.50, v6.6.49, v6.6.48
# 5d13afd0 23-Aug-2024 robelin <robelin@nvidia.com>

ASoC: dapm: Fix UAF for snd_soc_pcm_runtime object

commit b4a90b543d9f62d3ac34ec1ab97fc5334b048565 upstream.

When using kernel with the following extra config,

- CONFIG_KASAN=y
- CONFIG_KASAN_

ASoC: dapm: Fix UAF for snd_soc_pcm_runtime object

commit b4a90b543d9f62d3ac34ec1ab97fc5334b048565 upstream.

When using kernel with the following extra config,

- CONFIG_KASAN=y
- CONFIG_KASAN_GENERIC=y
- CONFIG_KASAN_INLINE=y
- CONFIG_KASAN_VMALLOC=y
- CONFIG_FRAME_WARN=4096

kernel detects that snd_pcm_suspend_all() access a freed
'snd_soc_pcm_runtime' object when the system is suspended, which
leads to a use-after-free bug:

[ 52.047746] BUG: KASAN: use-after-free in snd_pcm_suspend_all+0x1a8/0x270
[ 52.047765] Read of size 1 at addr ffff0000b9434d50 by task systemd-sleep/2330

[ 52.047785] Call trace:
[ 52.047787] dump_backtrace+0x0/0x3c0
[ 52.047794] show_stack+0x34/0x50
[ 52.047797] dump_stack_lvl+0x68/0x8c
[ 52.047802] print_address_description.constprop.0+0x74/0x2c0
[ 52.047809] kasan_report+0x210/0x230
[ 52.047815] __asan_report_load1_noabort+0x3c/0x50
[ 52.047820] snd_pcm_suspend_all+0x1a8/0x270
[ 52.047824] snd_soc_suspend+0x19c/0x4e0

The snd_pcm_sync_stop() has a NULL check on 'substream->runtime' before
making any access. So we need to always set 'substream->runtime' to NULL
everytime we kfree() it.

Fixes: a72706ed8208 ("ASoC: codec2codec: remove ephemeral variables")
Signed-off-by: robelin <robelin@nvidia.com>
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://patch.msgid.link/20240823144342.4123814-2-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...


Revision tags: v6.6.47, v6.6.46, v6.6.45, v6.6.44, v6.6.43, v6.6.42, v6.6.41, v6.6.40, v6.6.39, v6.6.38, v6.6.37, v6.6.36, v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30, v6.6.29, v6.6.28, v6.6.27, v6.6.26, v6.6.25, v6.6.24, v6.6.23, v6.6.16, v6.6.15, v6.6.14, v6.6.13, v6.6.12, v6.6.11, v6.6.10, v6.6.9, v6.6.8
# b97d6790 13-Dec-2023 Joel Stanley <joel@jms.id.au>

Merge tag 'v6.6.6' into dev-6.6

This is the 6.6.6 stable release

Signed-off-by: Joel Stanley <joel@jms.id.au>


Revision tags: v6.6.7, v6.6.6, v6.6.5, v6.6.4, v6.6.3, v6.6.2, v6.5.11, v6.6.1
# 8519bbf2 06-Nov-2023 Jerome Brunet <jbrunet@baylibre.com>

ASoC: dapm: fix clock get name

[ Upstream commit 4bdcbc31ad2112385ad525b28972c45015e6ad70 ]

The name currently used to get the clock includes the dapm prefix.
It should use the name as provided to

ASoC: dapm: fix clock get name

[ Upstream commit 4bdcbc31ad2112385ad525b28972c45015e6ad70 ]

The name currently used to get the clock includes the dapm prefix.
It should use the name as provided to the widget, without the prefix.

Fixes: 3caac759681e ("ASoC: soc-dapm.c: fixup snd_soc_dapm_new_control_unlocked() error handling")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20231106103712.703962-1-jbrunet@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...


Revision tags: v6.5.10, v6.6, v6.5.9
# 14f68633 20-Oct-2023 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'sound-6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
"Still higher volume than wished, but all are driver-specific small
fixe

Merge tag 'sound-6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
"Still higher volume than wished, but all are driver-specific small
fixes and look safe for this late RC.

The majority of changes are for ASoC, especially for wcd938x driver
and Cirrus codec drivers, while there are other random fixes including
usual HD-audio quirks"

* tag 'sound-6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (22 commits)
ASoC: da7219: Correct the process of setting up Gnd switch in AAD
ALSA: hda/realtek - Fixed ASUS platform headset Mic issue
ALSA: hda/realtek: Add quirk for ASUS ROG GU603ZV
ALSA: hda/relatek: Enable Mute LED on HP Laptop 15s-fq5xxx
ASoC: dwc: Fix non-DT instantiation
ASoC: codecs: tas2780: Fix log of failed reset via I2C.
ASoC: rt5650: fix the wrong result of key button
ASoC: cs42l42: Fix missing include of gpio/consumer.h
ASoC: cs42l43: Update values for bias sense
ASoC: dt-bindings: cirrus,cs42l43: Update values for bias sense
ASoC: cs35l56: ASP1 DOUT must default to Hi-Z when not transmitting
ASoC: pxa: fix a memory leak in probe()
ASoC: cs35l56: Fix illegal use of init_completion()
ASoC: codecs: wcd938x-sdw: fix runtime PM imbalance on probe errors
ASoC: codecs: wcd938x-sdw: fix use after free on driver unbind
ASoC: codecs: wcd938x: fix runtime PM imbalance on remove
ASoC: codecs: wcd938x: fix regulator leaks on probe errors
ASoC: codecs: wcd938x: fix resource leaks on bind errors
ASoC: codecs: wcd938x: fix unbind tear down order
ASoC: codecs: wcd938x: drop bogus bind error handling
...

show more ...


Revision tags: v6.5.8
# 8e13caa2 18-Oct-2023 Takashi Iwai <tiwai@suse.de>

Merge tag 'asoc-fix-v6.6-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.6

A fairly large set of fixes here but all driver specific, the bigg

Merge tag 'asoc-fix-v6.6-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.6

A fairly large set of fixes here but all driver specific, the biggest
block is Johan's work shaking out issues with device setup and teardown
for the wcd938x driver which is a relatively large but clearly broken
down set of changes.

There is one core helper function added as part of a fix for wsa-macro.

show more ...


Revision tags: v6.5.7
# cc660a4a 09-Oct-2023 Mark Brown <broonie@kernel.org>

ASoC: codecs: fix widget name comparisons

Merge series from Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>:

Some codec drivers compare widget names with strcmp, ignoring the component
name pr

ASoC: codecs: fix widget name comparisons

Merge series from Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>:

Some codec drivers compare widget names with strcmp, ignoring the component
name prefix. If prefix is used, the comparisons start failing.
Add a helper to fix the issue.

show more ...


Revision tags: v6.5.6
# 76aca10c 03-Oct-2023 Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

ASoC: soc-dapm: Add helper for comparing widget name

Some drivers use one event callback for multiple widgets but still need
to perform a bit different actions based on actual widget. This is done

ASoC: soc-dapm: Add helper for comparing widget name

Some drivers use one event callback for multiple widgets but still need
to perform a bit different actions based on actual widget. This is done
by comparing widget name, however drivers tend to miss possible name
prefix. Add a helper to solve common mistakes.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231003155710.821315-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

show more ...


Revision tags: v6.5.5, v6.5.4, v6.5.3
# c900529f 12-Sep-2023 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-fixes into drm-misc-fixes

Forwarding to v6.6-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


Revision tags: v6.5.2, v6.1.51, v6.5.1
# 1ac731c5 30-Aug-2023 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge branch 'next' into for-linus

Prepare input updates for 6.6 merge window.


# 4fb0dacb 30-Aug-2023 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'sound-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
"We've received a fairly wide range of changes at this time, including

Merge tag 'sound-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
"We've received a fairly wide range of changes at this time, including
for ALSA and ASoC core, but all of them are rather small changes.

Here are some highlights:

ALSA / ASoC Core:
- Fixes of inconsistent locking around control API helpers
- A few new control API functions and cleanups
- Workarounds for potential UAFs by delayed kobj releases
- Unified PCM copy ops with iov_iter
- Continued efforts for ASoC API cleanups

ASoC:
- An adaptor to allow use of IIO DACs and ADCs in ASoC which pulls in
some IIO changes
- Create a library function for intlog10() and use it in the NAU8825
driver
- Convert drivers to use the more modern maple tree register cache
- Lots of work on the SOF framework, AMD and Intel drivers, including
a lot of cleanup and new device support
- Standardization of the presentation of jacks from drivers
- Provision of some generic sound card DT properties
- Support for AMD Van Gogh, AMD machines with MAX98388 and NAU8821,
AWInic AW88261, Cirrus Logic CS35L36 and CS42L43, various Intel
platforms including AVS machines with ES8336 and RT5663, Mediatek
MT7986, NXP i.MX93, RealTek RT1017 and StarFive JH7110

Others:
- New test coverage including ASoC and topology tests in KUnit; this
also involves enabling UML builds of ALSA since that's the default
KUnit test environment which pulls in the addition of some stubs to
the driver
- More enhancement of pcmtest driver
- A few fixes / enhancements of MIDI 2.0 UMP core
- Using PCI definitions in allover HD-audio code
- Support for Cirrus CS35L56 and TI TAS2781 HD-audio sub-codecs
- CS35L41 HD-audio sub-codec improvements
- Continued emu10k1 improvements"

* tag 'sound-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (693 commits)
ALSA: pcm: Fix missing fixup call in compat hw_refine ioctl
ASoC: dwc: i2s: Fix unused functions
ALSA: usb-audio: Don't try to submit URBs after disconnection
ALSA: emu10k1: add separate documentation for E-MU cards
ALSA: emu10k1: more documentation updates
ALSA: emu10k1: de-duplicate audigy-mixer.rst vs. sb-live-mixer.rst
ALSA: ump: Fix -Wformat-truncation warnings
ALSA: hda: Add missing dependency on CONFIG_EFI for Cirrus/TI sub-codecs
ALSA: doc: Fix missing backquote in midi-2.0.rst
ALSA: hda/realtek: Add quirk for mute LEDs on HP ENVY x360 15-eu0xxx
ALSA: hda/tas2781: Switch back to use struct i2c_driver's .probe()
ASoC: soc-core.c: Do not error if a DAI link component is not found
ASoC: codecs: Fix error code in aw88261_i2c_probe()
ASoC: audio-graph-card.c: move audio_graph_parse_of()
ASoC: cs42l43: Use new-style PM runtime macros
ALSA: documentation: Add description for USB MIDI 2.0 gadget driver
ALSA: ump: Don't create unused substreams for static blocks
ALSA: ump: Fill group names for legacy rawmidi substreams
ALSA: usb-audio: Attach legacy rawmidi after probing all UMP EPs
ALSA: ac97: Fix possible error value of *rac97
...

show more ...


Revision tags: v6.1.50
# 692f5510 28-Aug-2023 Takashi Iwai <tiwai@suse.de>

Merge tag 'asoc-v6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v6.6

The rest of the updates for v6.6, some of the highlights include:

- A

Merge tag 'asoc-v6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v6.6

The rest of the updates for v6.6, some of the highlights include:

- A big API cleanup from Morimoto-san, rationalising the places we put
functions.
- Lots of work on the SOF framework, AMD and Intel drivers, including a
lot of cleanup and new device support.
- Standardisation of the presentation of jacks from drivers.
- Provision of some generic sound card DT properties.
- Conversion oof more drivers to the maple tree register cache.
- New drivers for AMD Van Gogh, AWInic AW88261, Cirrus Logic cs42l43,
various Intel platforms, Mediatek MT7986, RealTek RT1017 and StarFive
JH7110.

show more ...


Revision tags: v6.5, v6.1.49, v6.1.48, v6.1.46
# 6e9fd076 15-Aug-2023 Mark Brown <broonie@kernel.org>

ASoC: SOF: topology: simplify kcontrol names with

Merge series from Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>:

The use of the widget name as a prefix for the kcontrol name is quit

ASoC: SOF: topology: simplify kcontrol names with

Merge series from Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>:

The use of the widget name as a prefix for the kcontrol name is quite
useful in the case of multiple pipelines going to the same endpoint,
but it's overkill in simpler cases.

This patchset extends the existing DAPM code to drop the widget name
prefix and make the kcontrol names simpler when there's no possible
ambiguity, e.g. "gain.2.1 Main Playback Volume" becomes just "Main
Playback Volume".

show more ...


# f7f4a5ad 14-Aug-2023 Jyri Sarha <jyri.sarha@intel.com>

ASoC: dapm: Add a flag for not having widget name in kcontrol name

The existing soc-dapm code may add a prefix to control names, which in
some cases is useful but in others leads to long and confusi

ASoC: dapm: Add a flag for not having widget name in kcontrol name

The existing soc-dapm code may add a prefix to control names, which in
some cases is useful but in others leads to long and confusing kcontrol
names such as "gain 2.1 Main Playback Volume".

This patch suggests an added flag to prevent the widget name prefix
from being added. That flag will be set in the topology file on a
per-widget basis.

The flag no_wname_in_kcontrol_name is added to struct snd_soc_dapm_widget,
and the logic in dapm_create_or_share_kcontrol() is changed to not to
add widget name if the flag is set.

Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Jyri Sarha <jyri.sarha@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230814232325.86397-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

show more ...


Revision tags: v6.1.45, v6.1.44
# 2612e3bb 07-Aug-2023 Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-intel-next

Catching-up with drm-next and drm-intel-gt-next.
It will unblock a code refactor around the platform
definitions (names vs acronyms).

Signed-off-by: Rodrigo V

Merge drm/drm-next into drm-intel-next

Catching-up with drm-next and drm-intel-gt-next.
It will unblock a code refactor around the platform
definitions (names vs acronyms).

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

show more ...


# 9f771739 07-Aug-2023 Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Merge drm/drm-next into drm-intel-gt-next

Need to pull in b3e4aae612ec ("drm/i915/hdcp: Modify hdcp_gsc_message msg sending mechanism") as
a dependency for https://patchwork.freedesktop.org/series/1

Merge drm/drm-next into drm-intel-gt-next

Need to pull in b3e4aae612ec ("drm/i915/hdcp: Modify hdcp_gsc_message msg sending mechanism") as
a dependency for https://patchwork.freedesktop.org/series/121735/

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

show more ...


Revision tags: v6.1.43, v6.1.42, v6.1.41
# 61b73694 24-Jul-2023 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-next into drm-misc-next

Backmerging to get v6.5-rc2.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


Revision tags: v6.1.40, v6.1.39
# 50501936 17-Jul-2023 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge tag 'v6.4' into next

Sync up with mainline to bring in updates to shared infrastructure.


# 2f98e686 11-Jul-2023 Maxime Ripard <mripard@kernel.org>

Merge v6.5-rc1 into drm-misc-fixes

Boris needs 6.5-rc1 in drm-misc-fixes to prevent a conflict.

Signed-off-by: Maxime Ripard <mripard@kernel.org>


Revision tags: v6.1.38, v6.1.37
# 44f10dbe 30-Jun-2023 Andrew Morton <akpm@linux-foundation.org>

Merge branch 'master' into mm-hotfixes-stable


# f8824e15 29-Jun-2023 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'sound-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
"Lots of changes as usual, but the only significant stuff in ALSA core

Merge tag 'sound-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
"Lots of changes as usual, but the only significant stuff in ALSA core
part is the MIDI 2.0 support, while ASoC core kept receiving the code
refactoring. The majority of changes are seen rather in device
drivers, and quite a few new drivers can be found there.

Here we go, some highlights:

ALSA and ASoC Core:
- Support of MIDI 2.0 devices: rawmidi and sequencer API have been
extended for the support of the new UMP (Universal MIDI Packet)
protocol, USB audio driver got the USB MIDI 2.0 interface support
- Continued refactoring around ASoC DAI links and the ordering of
trigger callbacks
- PCM ABI extension for better drain support

ASoC Drivers:
- Conversions of many drivers to use maple tree based caches
- Everlasting improvement works on ASoC Intel drivers
- Compressed audio support for Qualcomm
- Support for AMD SoundWire, Analog Devices SSM3515, Google
Chameleon, Ingenic X1000, Intel systems with various CODECs,
Loongson platforms, Maxim MAX98388, Mediatek MT8188, Nuvoton
NAU8825C, NXP platforms with NAU8822, Qualcomm WSA884x, StarFive
JH7110, Texas Instruments TAS2781

HD-audio:
- Quirks for HP and ASUS machines
- CS35L41 HD-audio codec fixes
- Loongson HD-audio support

Misc:
- A new virtual PCM test driver for kselftests
- Continued refactoring and improvements on the legacy emu10k1
driver"

* tag 'sound-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (556 commits)
ALSA: hda/realtek: Enable mute/micmute LEDs and limit mic boost on EliteBook
ASoC: hdmi-codec: fix channel info for compressed formats
ALSA: pcm: fix ELD constraints for (E)AC3, DTS(-HD) and MLP formats
ASoC: core: Always store of_node when getting DAI link component
ASoC: tas2781: Fix error code in tas2781_load_calibration()
ASoC: amd: update pm_runtime enable sequence
ALSA: ump: Export MIDI1 / UMP conversion helpers
ASoC: tas2781: fix Kconfig dependencies
ASoC: amd: acp: remove acp poweroff function
ASoC: amd: acp: clear pdm dma interrupt mask
ASoC: codecs: max98090: Allow dsp_a mode
ASoC: qcom: common: add default jack dapm pins
ASoC: loongson: fix address space confusion
ASoC: dt-bindings: microchip,sama7g5-pdmc: Simplify "microchip,mic-pos" constraints
ASoC: tegra: Remove stale comments in AHUB
ASoC: tegra: Use normal system sleep for ASRC
ALSA: hda/realtek: Add quirks for ROG ALLY CS35l41 audio
ASoC: fsl-asoc-card: Allow passing the number of slots in use
ASoC: codecs: wsa884x: Add WSA884x family of speakers
ASoC: dt-bindings: qcom,wsa8840: Add WSA884x family of speakers
...

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Revision tags: v6.1.36
# d6048fdc 26-Jun-2023 Takashi Iwai <tiwai@suse.de>

Merge tag 'asoc-v6.5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v6.5

A fairly quiet release from a core and framework point of view, but a
ve

Merge tag 'asoc-v6.5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v6.5

A fairly quiet release from a core and framework point of view, but a
very big one from the point of view of new drivers:

- More refectoring from Morimoto-san, this time mainly around DAI
links and how we control the ordering of trigger() callbacks.
- Convert a lot of drivers to use maple tree based caches.
- Lots of work on the x86 driver stack.
- Compressed audio support for Qualcomm.
- Support for AMD SoundWire, Analog Devices SSM3515, Google Chameleon,
Ingenic X1000, Intel systems with various CODECs, Longsoon platforms,
Maxim MAX98388, Mediatek MT8188, Nuvoton NAU8825C, NXP platforms with
NAU8822, Qualcomm WSA884x, StarFive JH7110, Texas Instruments TAS2781.

show more ...


Revision tags: v6.4, v6.1.35
# db6da59c 15-Jun-2023 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-next into drm-misc-next-fixes

Backmerging to sync drm-misc-next-fixes with drm-misc-next.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


Revision tags: v6.1.34
# e8181a89 13-Jun-2023 Mark Brown <broonie@kernel.org>

ASoC: add N cpus to M codecs dai link support

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

ASoC: add N cpus to M codecs dai link support

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.

show more ...


Revision tags: v6.1.33
# ac950278 06-Jun-2023 Bard Liao <yung-chuan.liao@linux.intel.com>

ASoC: add N cpus to M codecs dai link support

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 a

ASoC: add N cpus to M codecs dai link support

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 patch 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.

When a dailink contains two or more cpu DAIs, we should set channel
number of cpus based on its channel mask. The new struct also provides
channel mask information for each codec and we can construct the cpu
channel mask by combining all codec channel masks which map to the cpu.

The N:M mapping is however restricted to the N <= M case due to physical
restrictions on a time-multiplexed bus such as I2S/TDM, AC97, SoundWire
and HDaudio.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20230607031242.1032060-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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