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A few more fixes for v6.5, just small driver specific ones.
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Merge tag 'asoc-fix-v6.5-rc1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.5
A few more fixes for v6.5, just small driver specific ones.
Adding support for new Dell laptops using Cirrus Logic CS35L41
smart amplifiers with Realtek codec.
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Signed-off-by: Vitaly Rodionov <vitalyr@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230720082022.13033-2-vitalyr@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Generic fixup for CS35L41 amplifies should not have vendor specific
chained fixup. For ThinkPad laptops with led issue, we can just add
specific fixup.
Fixes: a6ac60b36d (ALSA: hda/realtek: Fix mute led issue on thinkpad with cs35l41 s-codec)
Signed-off-by: Vitaly Rodionov <vitalyr@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230720082022.13033-1-vitalyr@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The HP Laptop 15s-eq2xxx uses ALC236 codec and controls the mute LED using
COEF 0x07 index 1. No existing quirk covers this configuration.
Adds a new quirk and enables it for the device.
Signed-off-by: Luka Guzenko <l.guzenko@web.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230718161241.393181-1-l.guzenko@web.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A lot of fixes here for the Qualcomm CODEC drivers, there was quite a
bit of fragility with the SoundWire probe due to the combined DT and
hotplug approach that the bus has which Johan Hovold fixed along with a
bunch of other issues that came up in the process. Srivinvas Kandagatla
also fixed some separate issues that have been lurking for a while in
the Qualcomm AP side, and there's a good set of AMD fixes from Vijendar
Mukunda too.
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Merge tag 'asoc-fix-v6.5-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.5
A lot of fixes here for the Qualcomm CODEC drivers, there was quite a
bit of fragility with the SoundWire probe due to the combined DT and
hotplug approach that the bus has which Johan Hovold fixed along with a
bunch of other issues that came up in the process. Srivinvas Kandagatla
also fixed some separate issues that have been lurking for a while in
the Qualcomm AP side, and there's a good set of AMD fixes from Vijendar
Mukunda too.
This doesn't check how many bytes the simple_write_to_buffer() writes to
the buffer. The only thing that we know is that the first byte is
initialized and the last byte of the buffer is set to NUL. However
the middle bytes could be uninitialized.
There is no need to use simple_write_to_buffer(). This code does not
support partial writes but instead passes "pos = 0" as the starting
offset regardless of what the user passed as "*ppos". Just use the
copy_from_user() function and initialize the whole buffer.
Fixes: 671e0b9005 ("ASoC: SOF: Clone the trace code to ipc3-dtrace as fw_tracing implementation")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/74148292-ce4d-4e01-a1a7-921e6767da14@moroto.mountain
Signed-off-by: Mark Brown <broonie@kernel.org>
In commit 2cb1e0259f ("ASoC: cs42l51: re-hook of_match_table
pointer"), 9 years ago, some random guy fixed the cs42l51 after it was
split into a core part and an I2C part to properly match based on a
Device Tree compatible string.
However, the fix in this commit is wrong: the MODULE_DEVICE_TABLE(of,
....) is in the core part of the driver, not the I2C part. Therefore,
automatic module loading based on module.alias, based on matching with
the DT compatible string, loads the core part of the driver, but not
the I2C part. And threfore, the i2c_driver is not registered, and the
codec is not known to the system, nor matched with a DT node with the
corresponding compatible string.
In order to fix that, we move the MODULE_DEVICE_TABLE(of, ...) into
the I2C part of the driver. The cs42l51_of_match[] array is also moved
as well, as it is not possible to have this definition in one file,
and the MODULE_DEVICE_TABLE(of, ...) invocation in another file, due
to how MODULE_DEVICE_TABLE works.
Thanks to this commit, the I2C part of the driver now properly
autoloads, and thanks to its dependency on the core part, the core
part gets autoloaded as well, resulting in a functional sound card
without having to manually load kernel modules.
Fixes: 2cb1e0259f ("ASoC: cs42l51: re-hook of_match_table pointer")
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Link: https://lore.kernel.org/r/20230713112112.778576-1-thomas.petazzoni@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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ASoC: Merge v6.5-rc2
Get a similar baseline to my other branches, and fixes for people using
the branch.
Remove the class-D internal register setting during initialization
to be compatible with most speaker designs to avoid noise.
Signed-off-by: Derek Fang <derek.fang@realtek.com>
Link: https://lore.kernel.org/r/20230712062553.31066-1-derek.fang@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This was the ALC283 depop procedure.
Maybe this procedure wasn't suitable with new codec.
So, let us remove it. But HP 15z-fc000 must do 3k pull low. If it
reboot with plugged headset,
it will have errors show don't find codec error messages. Run 3k pull
low will solve issues.
So, let AMD chipset will run this for workarround.
Fixes: 5aec989130 ("ALSA: hda/realtek - ALC236 headset MIC recording issue")
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Reported-by: Joseph C. Sible <josephcsible@gmail.com>
Closes: https://lore.kernel.org/r/CABpewhE4REgn9RJZduuEU6Z_ijXNeQWnrxO1tg70Gkw=F8qNYg@mail.gmail.com/
Link: https://lore.kernel.org/r/4678992299664babac4403d9978e7ba7@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
While there is probably only ever a single instance of such a pcmtst
device, it's still bad style to use a static variable to store per
device data. Make use of platform_get_drvdata() and
platform_set_drvdata() which fixes a data corruption if there should be
two or more such devices (or this driver is used as a template for
another driver).
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20230707075058.3402832-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20230707075058.3402832-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
On Pink Sardine machines that don't have SdW controllers in use, the property
`mipi-sdw-manager-list` won't exist. There is no point in showing an error
to a user when this situation is encountered.
Furthermore if the machine doesn't have a DMIC connected to the ACP, there
may be no platform devices created either.
Downgrade the associated message to debug.
Fixes: d1351c30ac ("ASoC: amd: ps: create platform devices based on acp config")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20230708025208.54272-1-mario.limonciello@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This reverts commit ff87d619ac.
Andreas reports that on an i.MX8MP-based system where MCLK needs to be
used as an input, the MCLK pin is actually an output, despite not having
the 'fsl,sai-mclk-direction-output' property present in the devicetree.
This is caused by commit ff87d619ac ("ASoC: fsl_sai: Enable
MCTL_MCLK_EN bit for master mode") that sets FSL_SAI_MCTL_MCLK_EN
unconditionally for imx8mm/8mn/8mp/93, causing the MCLK to always
be configured as output.
FSL_SAI_MCTL_MCLK_EN corresponds to the MOE (MCLK Output Enable) bit
of register MCR and the drivers sets it when the
'fsl,sai-mclk-direction-output' devicetree property is present.
Revert the commit to allow SAI to use MCLK as input as well.
Cc: stable@vger.kernel.org
Fixes: ff87d619ac ("ASoC: fsl_sai: Enable MCTL_MCLK_EN bit for master mode")
Reported-by: Andreas Henriksson <andreas@fatal.se>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20230706221827.1938990-1-festevam@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
A collection of small fixes that have been gathered recently:
- Two code-typo fixes in the new UMP core
- A fix in jack reporting to avoid the usage of mutex
- A potential data race fix in HD-audio core regmap code
- A potential data race fix in PCM allocation helper code
- HD-audio quirks for ASUS, Clevo and Unis machines
- Constifications in FireWire drivers
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Merge tag 'sound-fix-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes that have been gathered recently:
- Two code-typo fixes in the new UMP core
- A fix in jack reporting to avoid the usage of mutex
- A potential data race fix in HD-audio core regmap code
- A potential data race fix in PCM allocation helper code
- HD-audio quirks for ASUS, Clevo and Unis machines
- Constifications in FireWire drivers"
* tag 'sound-fix-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek: Add quirk for ASUS ROG GZ301V
ALSA: jack: Fix mutex call in snd_jack_report()
ALSA: seq: ump: fix typo in system_2p_ev_to_ump_midi1()
ALSA: hda/realtek: Whitespace fix
ALSA: hda/realtek: Add quirk for ASUS ROG G614Jx
ALSA: hda/realtek: Amend G634 quirk to enable rear speakers
ALSA: hda/realtek: Add quirk for ASUS ROG GA402X
ALSA: hda/realtek: Add quirk for ASUS ROG GX650P
ALSA: pcm: Fix potential data race at PCM memory allocation helpers
ALSA: hda: fix a possible null-pointer dereference due to data race in snd_hdac_regmap_sync()
ALSA: hda/realtek: Add quirks for Unis H3C Desktop B760 & Q760
ALSA: hda/realtek: Add quirk for Clevo NPx0SNx
ALSA: ump: Correct wrong byte size at converting a UMP System message
ALSA: fireface: make read-only const array for model names static
ALSA: oxfw: make read-only const array models static
Adds the required quirk to enable the Cirrus amp and correct pins
on the ASUS ROG GZ301V series which uses an SPI connected Cirrus amp.
While this works if the related _DSD properties are made available, these
aren't included in the ACPI of these laptops (yet).
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20230706223323.30871-2-luke@ljones.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
snd_jack_report() is supposed to be callable from an IRQ context, too,
and it's indeed used in that way from virtsnd driver. The fix for
input_dev race in commit 1b6a6fc528 ("ALSA: jack: Access input_dev
under mutex"), however, introduced a mutex lock in snd_jack_report(),
and this resulted in a potential sleep-in-atomic.
For addressing that problem, this patch changes the relevant code to
use the object get/put and removes the mutex usage. That is,
snd_jack_report(), it takes input_get_device() and leaves with
input_put_device() for assuring the input_dev being assigned.
Although the whole mutex could be reduced, we keep it because it can
be still a protection for potential races between creation and
deletion.
Fixes: 1b6a6fc528 ("ALSA: jack: Access input_dev under mutex")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/cf95f7fe-a748-4990-8378-000491b40329@moroto.mountain
Tested-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230706155357.3470-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Merge series from Johan Hovold <johan+linaro@kernel.org>:
I've been hitting a race during boot which breaks probe of the sound
card on the Lenovo ThinkPad X13s as I've previously reported here:
https://lore.kernel.org/all/ZIHMMFtuDtvdpFAZ@hovoldconsulting.com/
The immediate issue appeared to be a probe deferral that was turned into
a hard failure, but addressing that in itself only made things worse as
it exposed further bugs.
I was hoping someone more familiar with the code in question would look
into this, but as this affects users of the X13s and breaks audio on my
machine every fifth boot or so, I decided to investigate it myself.
As expected, the Qualcomm codec drivers are broken and specifically leak
resources on component remove, which in turn breaks sound card probe
deferrals.
The source of the deferral itself appears to be legitimate and was
simply due to some audio component not yet having been registered due to
random changes in timing during boot.
These issues can most easily be reproduced by simply blacklisting the
q6apm_dai module and loading it manually after boot.
Included are also two patches that suppresses error messages on
component probe deferral to avoid spamming the logs during boot.
If CONFIG_SND_SOC_WCD934X=y, CONFIG_COMPILE_TEST=y,
CONFIG_MFD_WCD934X=n, CONFIG_REGMAP_IRQ=n:
aarch64-linux-gnu-ld: sound/soc/codecs/wcd934x.o: in function `wcd934x_codec_probe':
wcd934x.c:(.text+0x33cc): undefined reference to `regmap_irq_get_virq'
aarch64-linux-gnu-ld: sound/soc/codecs/wcd934x.o: in function `wcd934x_comp_probe':
wcd934x.c:(.text+0x4cb0): undefined reference to `regmap_irq_get_virq'
aarch64-linux-gnu-ld: wcd934x.c:(.text+0x4cc0): undefined reference to `regmap_irq_get_virq'
aarch64-linux-gnu-ld: wcd934x.c:(.text+0x4cd0): undefined reference to `regmap_irq_get_virq'
aarch64-linux-gnu-ld: wcd934x.c:(.text+0x4ce0): undefined reference to `regmap_irq_get_virq'
aarch64-linux-gnu-ld: sound/soc/codecs/wcd934x.o:wcd934x.c:(.text+0x4cf0): more undefined references to `regmap_irq_get_virq' follow
Fix this by making SND_SOC_WCD934X select REGMAP_IRQ.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/cafd878747e7951914a7d9fea33788a4a230d1f0.1688643442.git.geert@linux-m68k.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Closing GPR port before graph close can result in un handled notifications
from DSP, this results in spam of errors from GPR driver as there is no
one to handle these notification at that point in time.
Fix this by closing GPR port after graph close is finished.
Fixes: 5477518b8a ("ASoC: qdsp6: audioreach: add q6apm support")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230705131842.41584-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Suppress probe deferral error messages when probing link components to
avoid spamming the logs, for example, if a required component has not
yet been registered:
snd-sc8280xp sound: ASoC: failed to instantiate card -517
Note that dev_err_probe() is not used as the card can be unbound and
rebound while the underlying platform device remains bound to its
driver.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20230705123018.30903-9-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Suppress probe deferral error messages when loading topologies and
creating frontend links to avoid spamming the logs when a component has
not yet been registered:
snd-sc8280xp sound: ASoC: adding FE link failed
snd-sc8280xp sound: ASoC: topology: could not load header: -517
Note that dev_err_probe() is not used as the topology component can be
probed and removed while the underlying platform device remains bound to
its driver.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20230705123018.30903-8-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The MBHC resources must be released on component probe failure and
removal so can not be tied to the lifetime of the component device.
This is specifically needed to allow probe deferrals of the sound card
which otherwise fails when reprobing the codec component:
snd-sc8280xp sound: ASoC: failed to instantiate card -517
genirq: Flags mismatch irq 299. 00002001 (mbhc sw intr) vs. 00002001 (mbhc sw intr)
wcd938x_codec audio-codec: Failed to request mbhc interrupts -16
wcd938x_codec audio-codec: mbhc initialization failed
wcd938x_codec audio-codec: ASoC: error at snd_soc_component_probe on audio-codec: -16
snd-sc8280xp sound: ASoC: failed to instantiate card -16
Fixes: 0e5c9e7ff8 ("ASoC: codecs: wcd: add multi button Headset detection support")
Cc: stable@vger.kernel.org # 5.14
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230705123018.30903-7-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Make sure to release allocated MBHC resources also on component remove.
This is specifically needed to allow probe deferrals of the sound card
which otherwise fails when reprobing the codec component.
Fixes: 9fb9b1690f ("ASoC: codecs: wcd934x: add mbhc support")
Cc: stable@vger.kernel.org # 5.14
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230705123018.30903-6-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Allocation of the clash control structure may fail so add the missing
error handling to avoid dereferencing an error pointer.
Fixes: 8d78602aa8 ("ASoC: codecs: wcd938x: add basic driver")
Cc: stable@vger.kernel.org # 5.14
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230705123018.30903-4-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Propagate errors when failing to load the topology component so that
probe deferrals can be handled.
Fixes: 36ad9bf1d9 ("ASoC: qdsp6: audioreach: add topology support")
Cc: stable@vger.kernel.org # 5.17
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230705123018.30903-3-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
dB range for HPHL and HPHR gains are from +6dB to -30dB in steps of
1.5dB with register values range from 0 to 24.
Current code maps these dB ranges incorrectly, fix them to allow proper
volume setting.
Fixes: e8ba1e05bd ("ASoC: codecs: wcd938x: add basic controls")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230705125723.40464-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
With recent changes to add more display ports did not change the Stream
name in q6afe-dai. This results in below error
"ASoC: Failed to add route DISPLAY_PORT_RX -> Display Port Playback(*)"
and sound card fails to probe.
Fix this by adding correct stream name.
Fixes: 90848a2557 ("ASoC: qcom: q6dsp: add support to more display ports")
Reported-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230705124850.40069-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
If the I2C controller encounters some problems like timed-out, the codec
driver will report the error code for the first read.
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20230705042915.24932-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
After commit 6085f9e6dc ("ASoC: cs35l45: IRQ support"), without any
other configuration that selects CONFIG_REGMAP_IRQ, modpost errors out
with:
ERROR: modpost: "regmap_irq_get_virq" [sound/soc/codecs/snd-soc-cs35l45.ko] undefined!
ERROR: modpost: "devm_regmap_add_irq_chip" [sound/soc/codecs/snd-soc-cs35l45.ko] undefined!
Add the Kconfig selection to ensure these functions get built and
included, which resolves the build failure.
Cc: stable@vger.kernel.org
Fixes: 6085f9e6dc ("ASoC: cs35l45: IRQ support")
Reported-by: Marcus Seyfarth <m.seyfarth@gmail.com>
Closes: https://github.com/ClangBuiltLinux/linux/issues/1882
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20230703-cs35l45-select-regmap_irq-v1-1-37d7e838b614@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Adds the required quirk to enable the Cirrus amp and correct pins
on the ASUS ROG G614J series which uses an SPI connected Cirrus amp.
While this works if the related _DSD properties are made available, these
aren't included in the ACPI of these laptops (yet).
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20230704044619.19343-5-luke@ljones.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Adds the required quirk to enable the Cirrus amp and correct pins
on the ASUS ROG GA402X series which uses an I2C connected Cirrus amp.
While this works if the related _DSD properties are made available, these
aren't included in the ACPI of these laptops (yet).
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20230704044619.19343-3-luke@ljones.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Adds the required quirk to enable the Cirrus amp and correct pins
on the ASUS ROG GV601V series which uses an I2C connected Cirrus amp.
While this works if the related _DSD properties are made available, these
aren't included in the ACPI of these laptops (yet).
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20230704044619.19343-2-luke@ljones.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The PCM memory allocation helpers have a sanity check against too many
buffer allocations. However, the check is performed without a proper
lock and the allocation isn't serialized; this allows user to allocate
more memories than predefined max size.
Practically seen, this isn't really a big problem, as it's more or
less some "soft limit" as a sanity check, and it's not possible to
allocate unlimitedly. But it's still better to address this for more
consistent behavior.
The patch covers the size check in do_alloc_pages() with the
card->memory_mutex, and increases the allocated size there for
preventing the further overflow. When the actual allocation fails,
the size is decreased accordingly.
Reported-by: BassCheck <bass@buaa.edu.cn>
Reported-by: Tuo Li <islituo@gmail.com>
Link: https://lore.kernel.org/r/CADm8Tek6t0WedK+3Y6rbE5YEt19tML8BUL45N2ji4ZAz1KcN_A@mail.gmail.com
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230703112430.30634-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Make sure that the soundwire device used for register accesses has been
enumerated and initialised before trying to read the codec variant
during component probe.
This specifically avoids interpreting (a masked and shifted) -EBUSY
errno as the variant:
wcd938x_codec audio-codec: ASoC: error at soc_component_read_no_lock on audio-codec for register: [0x000034b0] -16
in case the soundwire device has not yet been initialised, which in turn
prevents some headphone controls from being registered.
Fixes: 8d78602aa8 ("ASoC: codecs: wcd938x: add basic driver")
Cc: stable@vger.kernel.org # 5.14
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reported-by: Steev Klimaszewski <steev@kali.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Steev Klimaszewski <steev@kali.org>
Link: https://lore.kernel.org/r/20230701094723.29379-1-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The variable codec->regmap is often protected by the lock
codec->regmap_lock when is accessed. However, it is accessed without
holding the lock when is accessed in snd_hdac_regmap_sync():
if (codec->regmap)
In my opinion, this may be a harmful race, because if codec->regmap is
set to NULL right after the condition is checked, a null-pointer
dereference can occur in the called function regcache_sync():
map->lock(map->lock_arg); --> Line 360 in drivers/base/regmap/regcache.c
To fix this possible null-pointer dereference caused by data race, the
mutex_lock coverage is extended to protect the if statement as well as the
function call to regcache_sync().
[ Note: the lack of the regmap_lock itself is harmless for the current
codec driver implementations, as snd_hdac_regmap_sync() is only for
PM runtime resume that is prohibited during the codec probe.
But the change makes the whole code more consistent, so it's merged
as is -- tiwai ]
Reported-by: BassCheck <bass@buaa.edu.cn>
Signed-off-by: Tuo Li <islituo@gmail.com>
Link: https://lore.kernel.org/r/20230703031016.1184711-1-islituo@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
These models use NSIWAY amplifiers for internal speaker, but cannot put
sound outside from these amplifiers. So eapd verbs are needed to initialize
the amplifiers. They can be added during boot to get working sound out
of internal speaker.
Signed-off-by: dengxiang <dengxiang@nfschina.com>
Link: https://lore.kernel.org/r/20230703021751.2945750-1-dengxiang@nfschina.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Merge series from Johan Hovold <johan+linaro@kernel.org>:
When investigating a race in the wcd938x driver I noticed that the MBHC
impedance measurements where printed at error loglevel which is clearly
wrong.
Fix that, and clean up the logging somewhat by using dev_printk() and
addressing some style issues.
Included are also two patches that drop the bogus inline keywords from
the functions involved.
The compiler is generally better at deciding what functions should be
inlined than driver authors are.
Drop the bogus inline keyword from two functions that were neither very
small or used in a single place.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230630142717.5314-6-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Demote the MBHC impedance measurement printk, which is only needed
for development and debugging, to debug level.
While at it, fix the capitalisation of "ohm" and add the missing space
before the opening parenthesis.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230630142717.5314-5-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
