soc-pcm.c has snd_soc_dpcm_stream_{lock/unlock}_irq() helper function,
but it is almost nothing help. It just makes a code complex.
Let's remove it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://patch.msgid.link/875xsnll85.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Replace SET_RUNTIME_PM_OPS()/SET SYSTEM_SLEEP_PM_OPS() with their modern
RUNTIME_PM_OPS() and SYSTEM_SLEEP_PM_OPS() alternatives.
The combined usage of pm_ptr() and RUNTIME_PM_OPS/SYSTEM_SLEEP_PM_OPS()
allows the compiler to evaluate if the runtime suspend/resume() functions
are used at build time or are simply dead code.
This allows removing the CONFIG_PM ifdefery from the runtime
suspend/resume() functions.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://patch.msgid.link/20240808184944.267686-7-festevam@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Replace SET_SYSTEM_SLEEP_PM_OPS() with its modern SYSTEM_SLEEP_PM_OPS()
alternative.
The combined usage of pm_sleep_ptr() and SYSTEM_SLEEP_PM_OPS() allows
the compiler to evaluate if the suspend/resume() functions
are used at build time or are simply dead code.
This allows removing the CONFIG_PM_SLEEP ifdefery from the
suspend/resume() functions.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://patch.msgid.link/20240808184944.267686-6-festevam@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Replace SET_SYSTEM_SLEEP_PM_OPS() with its modern SYSTEM_SLEEP_PM_OPS()
alternative.
The combined usage of pm_sleep_ptr() and SYSTEM_SLEEP_PM_OPS() allows
the compiler to evaluate if the suspend/resume() functions are used at
build time or are simply dead code.
This allows removing the CONFIG_PM_SLEEP ifdefery from the
suspend/resume() functions.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://patch.msgid.link/20240808184944.267686-5-festevam@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Replace SET_RUNTIME_PM_OPS()/SET SYSTEM_SLEEP_PM_OPS() with their modern
RUNTIME_PM_OPS() and SYSTEM_SLEEP_PM_OPS() alternatives.
The combined usage of pm_ptr() and RUNTIME_PM_OPS/SYSTEM_SLEEP_PM_OPS()
allows the compiler to evaluate if the runtime suspend/resume() functions
are used at build time or are simply dead code.
This allows removing the CONFIG_PM ifdefery from the runtime
suspend/resume() functions.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://patch.msgid.link/20240808184944.267686-4-festevam@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Replace SET_RUNTIME_PM_OPS() with its modern RUNTIME_PM_OPS()
alternative.
The combined usage of pm_ptr() and RUNTIME_PM_OPS() allows the
compiler to evaluate if the runtime suspend/resume() functions
are used at build time or are simply dead code.
This allows removing the CONFIG_PM ifdefery from the runtime
suspend/resume() functions.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://patch.msgid.link/20240808184944.267686-3-festevam@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Replace SET_RUNTIME_PM_OPS()/SET SYSTEM_SLEEP_PM_OPS() with their modern
RUNTIME_PM_OPS() and SYSTEM_SLEEP_PM_OPS() alternatives.
The combined usage of pm_ptr() and RUNTIME_PM_OPS/SYSTEM_SLEEP_PM_OPS()
allows the compiler to evaluate if the runtime suspend/resume() functions
are used at build time or are simply dead code.
This allows removing the CONFIG_PM ifdefery from the runtime
suspend/resume() functions.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://patch.msgid.link/20240808184944.267686-2-festevam@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Replace SET_RUNTIME_PM_OPS()/SET SYSTEM_SLEEP_PM_OPS() with their modern
RUNTIME_PM_OPS() and SYSTEM_SLEEP_PM_OPS() alternatives.
The combined usage of pm_ptr() and RUNTIME_PM_OPS/SYSTEM_SLEEP_PM_OPS()
allows the compiler to evaluate if the runtime suspend/resume() functions
are used at build time or are simply dead code.
This allows removing the CONFIG_PM ifdefery from the runtime
suspend/resume() functions.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://patch.msgid.link/20240808184944.267686-1-festevam@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
'struct reg_sequence' is not modified in this driver.
Constifying this structure moves some data to a read-only section, so
increase overall security.
While at it, remove rt1318_INIT_REG_LEN which is ununsed.
On a x86_64, with allmodconfig:
Before:
======
text data bss dec hex filename
22062 4859 32 26953 6949 sound/soc/codecs/rt1318.o
After:
=====
text data bss dec hex filename
24742 2171 32 26945 6941 sound/soc/codecs/rt1318.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://patch.msgid.link/96561dd2962d4312eb0e68ab850027f44350d070.1722952334.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Replace a comma between expression statements by a semicolon.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://patch.msgid.link/20240812100429.2594745-1-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
'struct reg_sequence' and 'struct reg_sequences' are not modified in this
drivers.
Constifying these structures moves some data to a read-only section, so
increase overall security.
On a x86_64, with allmodconfig:
Before:
======
text data bss dec hex filename
54409 7881 64 62354 f392 sound/soc/codecs/cs43130.o
After:
=====
text data bss dec hex filename
55562 6729 64 62355 f393 sound/soc/codecs/cs43130.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://patch.msgid.link/5b906a0cc9b7be15d0d6310069f54254a75ea767.1722951770.git.christophe.jaillet@wanadoo.fr
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Linus Walleij <linus.walleij@linaro.org>:
The TI TAS drivers use some legacy GPIO code and headers,
this series fixes it up.
The TAS2781 is a special case since it adds a handful of
lines of deviating code to reconfigure a GPIO line for
IRQ mode and then never actually use the IRQ obtained in
the code. Is the line used by autonomous hardware? I'm
puzzled by this.
Anyways the patch suggest how to solve this properly by
fixing the parent irqchip and I'm happy to help.
-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.
Move the conflicting declaration to the end of the structure. Notice
that `struct snd_sof_pcm` ends in a flexible-array member through
`struct snd_soc_tplg_pcm` -> `struct snd_soc_tplg_private`.
Whith this, fix the following warnings:
sound/soc/sof/sof-audio.h:350:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
./include/trace/events/../../../sound/soc/sof/sof-audio.h:350:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
sound/soc/amd/../sof/amd/../sof-audio.h:350:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
sound/soc/sof/amd/../sof-audio.h:350:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
sound/soc/sof/intel/../sof-audio.h:350:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
sound/soc/sof/mediatek/mt8186/../../sof-audio.h:350:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
sound/soc/sof/mediatek/mt8195/../../sof-audio.h:350:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://patch.msgid.link/ZrDvt6eyeFyajq6l@cute
Signed-off-by: Mark Brown <broonie@kernel.org>
Add ZSC Control register programming sequence for ACP D0 and D3 state
transitions for ACP7.0 onwards. This will allow ACP to enter low power
state when ACP enters D3 state. When ACP enters D0 State, ZSC control
should be disabled.
Tested-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://patch.msgid.link/20240807085154.1987681-1-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
As module device table added for AMD SoundWire machine driver MODULE_ALIAS
is not required. Remove MODULE_ALIAS for AMD SoundWire machine driver.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Suggested-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240807050846.1616725-1-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Now that regmap_read_bypassed() has been added to the kernel it is
preferable to wake the device with a read rather than a write as the
utility function can be called at a time before the device has been
identified.
Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Link: https://patch.msgid.link/20240807142715.47077-1-simont@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
These drivers all use <linux/gpio/consumer.h> and has no business
including the legacy headers <linux/gpio.h> or <linux/of_gpio.h>.
Drop the surplus includes.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patch.msgid.link/20240807-asoc-tas-gpios-v2-3-bd0f2705d58b@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The code is obtaining a GPIO reset using the reset GPIO
name "reset-gpios", but the gpiolib is already adding the
suffix "-gpios" to anything passed to this function and
will be looking for "reset-gpios-gpios" which is most
certainly not what the author desired.
Fix it up.
Fixes: ef3bcde75d ("ASoC: tas2781: Add tas2781 driver")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patch.msgid.link/20240807-asoc-tas-gpios-v2-2-bd0f2705d58b@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The tas2781-i2c driver gets an IRQ from either ACPI or device tree,
then proceeds to check if the IRQ has a corresponding GPIO and in
case it does enforce the GPIO as input and set a label on it.
This is abuse of the API:
- First we cannot guarantee that the numberspaces of the GPIOs and
the IRQs are the same, i.e that an IRQ number corresponds to
a GPIO number like that.
- Second, GPIO chips and IRQ chips should be treated as orthogonal
APIs, the irqchip needs to ascertain that the backing GPIO line
is set to input etc just using the irqchip.
- Third it is using the legacy <linux/gpio.h> API which should not
be used in new code yet this was added just a year ago.
Delete the offending code.
If this creates problems the GPIO and irqchip maintainers can help
to fix the issues.
It *should* not create any problems, because the irq isn't
used anywhere in the driver, it's just obtained and then
left unused.
Fixes: ef3bcde75d ("ASoC: tas2781: Add tas2781 driver")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patch.msgid.link/20240807-asoc-tas-gpios-v2-1-bd0f2705d58b@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Bespoke trigger support was added when Linux v3.5 by this patch.
commit 07bf84aaf7
("ASoC: dpcm: Add bespoke trigger()")
test-component driver is using it, but this is because it indicates used
function for debug/trace purpose. Except test-component driver, bespoke
trigger has never been used over 10 years in upstream.
We can re-support it if needed in the future, but let's remove it for now,
because it just noise in upstream.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://patch.msgid.link/87v80ewmdi.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Simon Trimmer <simont@opensource.cirrus.com>:
This pair of patches extend wm_adsp to add a callback that can be used
to control whether ALSA controls are added and then tweak cs35l56 to use
it to suppress controls made from firmware coefficients.
Use the late-read buffer in the CS35L56 SoundWire interface to
read OTP memory.
The OTP memory has a longer access latency than chip registers
and cannot guarantee to return the data value in the SoundWire
control response if the bus clock is >4.8 MHz. The Cirrus
SoundWire peripheral IP exposes the bridge-to-bus read buffer
and status bits. For a read from OTP the bridge status bits are
polled to wait for the OTP data to be loaded into the read buffer
and the data is then read from there.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: e1830f66f6 ("ASoC: cs35l56: Add helper functions for amp calibration")
Link: https://patch.msgid.link/20240805140839.26042-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Recent changes that started checking the codec version broke audio on
the Lenovo ThinkPad X13s:
wsa_macro 3240000.codec: Unsupported Codec version (0)
wsa_macro 3240000.codec: probe with driver wsa_macro failed with error -22
rx_macro 3200000.rxmacro: Unsupported Codec version (0)
rx_macro 3200000.rxmacro: probe with driver rx_macro failed with error -22
Add the missing codec version to the lookup table so that the codec
drivers probe successfully.
Note that I'm just assuming that this is a 2.0 codec based on the fact
that this device uses the older register layout.
Fixes: 378918d591 ("ASoC: codecs: lpass-macro: add helpers to get codec version")
Fixes: dbacef0589 ("ASoC: codec: lpass-rx-macro: prepare driver to accomdate new codec versions")
Fixes: 727de4fbc5 ("ASoC: codecs: lpass-wsa-macro: Correct support for newer v2.5 version")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240729131351.27886-1-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Call efi_rt_services_supported() to check that efi.get_variable exists
before calling it.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 1cad8725f2 ("ASoC: cs-amp-lib: Add helpers for factory calibration data")
Link: https://patch.msgid.link/20240805114222.15722-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
A number of laptops have gone to market with old firmware versions that
export controls that have since been hidden, but we can't just install a
newer firmware because the firmware for each product is customized and
qualified by the OEM. The issue is that alsactl save and restore has no
idea what controls are good to persist which can lead to
misconfiguration.
There is no reason that the UCM or user should need to interact with any
of the ALSA controls for the firmware coefficients so they can be
removed entirely.
Fixes: e496112529 ("ASoC: cs35l56: Add driver for Cirrus Logic CS35L56")
Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Link: https://patch.msgid.link/20240805102721.30102-3-simont@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The callback allows codec drivers to affect how firmware coefficients
are added as controls.
For example a codec driver may selectively add controls by choosing to
call wm_adsp_control_add() based on some filter logic.
Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Link: https://patch.msgid.link/20240805102721.30102-2-simont@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>:
Add initial support for the PantherLake platform, and initial ACPI
configurations.
Merge series from Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>:
pahole reports a number of sub-optimal structure definitions with
holes and cache-line alignment problems, this patchset optimizes a
couple of structure frequently used.
No functionality change, only re-ordering of structure members.
In order to constify `snd_soc_component_driver` struct, duplicate
`soc_component_dev_cs43130` into a `soc_component_dev_cs43130_digital` and
`soc_component_dev_cs43130_analog`.
These 2 new structures share the same .dapm_widgets and .dapm_routes
arrays but differ for .num_dapm_widgets and .num_dapm_routes.
In the digital case, the last entries are not taken into account.
Doing so has several advantages:
- `snd_soc_component_driver` can be declared as const to move their
declarations to read-only sections.
- code in the probe is simpler. There is no need to concatenate some
arrays to handle the "analog" case
- this saves some memory because all_hp_widgets and analog_hp_routes can
be removed.
Before :
======
text data bss dec hex filename
53965 8265 4512 66742 104b6 sound/soc/codecs/cs43130.o
After :
=====
text data bss dec hex filename
54409 7881 64 62354 f392 sound/soc/codecs/cs43130.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://patch.msgid.link/1f04bb0366d9640d7ee361dae114ff79e4b381c1.1722274212.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
These symbols are not used outside of the files, make them static to fix
sparse warnings:
sound/soc/fsl/lpc3xxx-i2s.c:261:30: warning: symbol 'lpc3xxx_i2s_dai_ops' was not declared. Should it be static?
sound/soc/fsl/lpc3xxx-i2s.c:271:27: warning: symbol 'lpc3xxx_i2s_dai_driver' was not declared. Should it be static?
sound/soc/fsl/lpc3xxx-pcm.c:55:39: warning: symbol 'lpc3xxx_soc_platform_driver' was not declared. Should it be static?
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Link: https://patch.msgid.link/20240802101044.3302251-1-yuehaibing@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
In order to constify `snd_soc_component_driver` struct, simplify the logic
and the `sti_sas_dev_data` struct.
Since commit 165a57a3df ("ASoC: sti-sas: clean legacy in sti-sas") only
only chip is supported and `sti_sas_driver` can be fully defined at
compilation time.
Before:
======
text data bss dec hex filename
8033 1547 16 9596 257c sound/soc/codecs/sti-sas.o
After:
=====
text data bss dec hex filename
8257 1163 16 9436 24dc sound/soc/codecs/sti-sas.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://patch.msgid.link/2c08558813e3bbfae0a5302199cf6ca226e7cde1.1722544073.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Move tas2563_dvc_table into a separate Header file, as only tas2781
codec driver use this table, and hda side codec driver won't use it.
Fixes: 75ed63a5ab ("ASoC: tas2781: Add new Kontrol to set tas2563 digital Volume")
Signed-off-by: Shenghao Ding <shenghao-ding@ti.com>
Link: https://patch.msgid.link/20240802072055.1462-1-shenghao-ding@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Invert members to remove hole.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://patch.msgid.link/20240802124609.188954-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Reverse the two members to remove a hole.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://patch.msgid.link/20240802124609.188954-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
reshuffle members to remove hole.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://patch.msgid.link/20240802124609.188954-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch adds match table for rt722 multiple function codec on link
0 and link3.
The topology does not internally refer to link0 or link3, so we can
simplify and use the same topology file name. We do need different
tables though.
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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://patch.msgid.link/20240802124011.173820-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
PTL has some differences from MTL/LNL. Need to use different register
to power up.
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Fred Oh <fred.oh@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://patch.msgid.link/20240802124011.173820-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
For now the tables are basic for mockup devices and headset codec support
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://patch.msgid.link/20240802124011.173820-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The microphone/speaker privacy shutter ALSA control handlers need to
call pm_runtime_resume, since the hardware needs to be powered up to
check the hardware state of the shutter. The IRQ handler for the
shutters also needs to notify the ALSA control to inform user-space
the shutters updated. However this leads to a mutex inversion,
between the sdw_dev_lock and the controls_rwsem.
To avoid this mutex inversion cache the kctl pointers before the IRQ
handler, which avoids the need to lookup the control and take the
controls_rwsem.
Suggested-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20240802105734.2309788-5-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add new helper functions snd_soc_component_get_kcontrol() and
snd_soc_component_get_kcontrol_locked() that returns a kcontrol
by name, but will factor in the components name_prefix, to handle
situations where multiple components are present with the same
controls.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20240802105734.2309788-3-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
