Members wcd934x_codec.num_rx_port and num_tx_port are not read anywhere
after assignment, so they can be safely dropped.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Link: https://patch.msgid.link/20250528-asoc-const-unused-v1-4-19a5d07b9d5c@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
around the fallout from the new CONFIG_OBJTOOL_WERROR=y feature,
which, despite its default-off nature, increased the profile/impact
of objtool warnings:
- Improve error handling and the presentation of warnings/errors.
- Revert the new summary warning line that some test-bot tools
interpreted as new regressions.
- Fix a number of objtool warnings in various drivers, core kernel
code and architecture code. About half of them are potential
problems related to out-of-bounds accesses or potential undefined
behavior, the other half are additional objtool annotations.
- Update objtool to latest (known) compiler quirks and
objtool bugs triggered by compiler code generation
- Misc fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-urgent-2025-04-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fixes from Ingo Molnar:
"These are objtool fixes and updates by Josh Poimboeuf, centered around
the fallout from the new CONFIG_OBJTOOL_WERROR=y feature, which,
despite its default-off nature, increased the profile/impact of
objtool warnings:
- Improve error handling and the presentation of warnings/errors
- Revert the new summary warning line that some test-bot tools
interpreted as new regressions
- Fix a number of objtool warnings in various drivers, core kernel
code and architecture code. About half of them are potential
problems related to out-of-bounds accesses or potential undefined
behavior, the other half are additional objtool annotations
- Update objtool to latest (known) compiler quirks and objtool bugs
triggered by compiler code generation
- Misc fixes"
* tag 'objtool-urgent-2025-04-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
objtool/loongarch: Add unwind hints in prepare_frametrace()
rcu-tasks: Always inline rcu_irq_work_resched()
context_tracking: Always inline ct_{nmi,irq}_{enter,exit}()
sched/smt: Always inline sched_smt_active()
objtool: Fix verbose disassembly if CROSS_COMPILE isn't set
objtool: Change "warning:" to "error: " for fatal errors
objtool: Always fail on fatal errors
Revert "objtool: Increase per-function WARN_FUNC() rate limit"
objtool: Append "()" to function name in "unexpected end of section" warning
objtool: Ignore end-of-section jumps for KCOV/GCOV
objtool: Silence more KCOV warnings, part 2
objtool, drm/vmwgfx: Don't ignore vmw_send_msg() for ORC
objtool: Fix STACK_FRAME_NON_STANDARD for cold subfunctions
objtool: Fix segfault in ignore_unreachable_insn()
objtool: Fix NULL printf() '%s' argument in builtin-check.c:save_argv()
objtool, lkdtm: Obfuscate the do_nothing() pointer
objtool, regulator: rk808: Remove potential undefined behavior in rk806_set_mode_dcdc()
objtool, ASoC: codecs: wcd934x: Remove potential undefined behavior in wcd934x_slim_irq_handler()
objtool, Input: cyapa - Remove undefined behavior in cyapa_update_fw_store()
objtool, panic: Disable SMAP in __stack_chk_fail()
...
If 'port_id' is negative, the shift counts in wcd934x_slim_irq_handler()
also become negative, resulting in undefined behavior due to shift out
of bounds.
If I'm reading the code correctly, that appears to be not possible, but
with KCOV enabled, Clang's range analysis isn't always able to determine
that and generates undefined behavior.
As a result the code generation isn't optimal, and undefined behavior
should be avoided regardless. Improve code generation and remove the
undefined behavior by converting the signed variables to unsigned.
Fixes the following warning with UBSAN:
sound/soc/codecs/snd-soc-wcd934x.o: warning: objtool: .text.wcd934x_slim_irq_handler: unexpected end of section
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/7e863839ec7301bf9c0f429a03873d44e484c31c.1742852847.git.jpoimboe@kernel.org
Closes: https://lore.kernel.org/oe-kbuild-all/202503180044.oH9gyPeg-lkp@intel.com/
Don't populate the read-only array minCode_param on the stack at
run time, instead make it static const.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://patch.msgid.link/20240821114927.520193-1-colin.i.king@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Allocate the memory with scoped/cleanup.h to reduce error handling (less
error paths) and make the code a bit simpler.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240703-asoc-cleanup-h-v1-4-71219dfd0aef@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>:
Make few pointers in ASoC functions as pointers to const, so the code is
clearer to read, a bit safer and allows further constifications (e.g.
placing some data as rodata).
wcd934x_codec_parse_data() function is called only from probe(), so
printing errors on resource acquisition is discouraged, because it can
pollute dmesg in case of probe deferral. The actual deferral is here
unlikely, but still the code is a bit simpler with dev_err_probe().
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://msgid.link/r/20240612-asoc-wcd9xxx-wide-cleanups-v1-10-0d15885b2a06@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Driver stores the voltage of mic bias in fields in state container
structure, but actually never reads them - except for the mic2 bias
(micb2_mv field). Drop the fields from the structure so the code will
be a bit simpler.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://msgid.link/r/20240612-asoc-wcd9xxx-wide-cleanups-v1-9-0d15885b2a06@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Driver does not modify few static data (arrays with sample rates, MBHC
reg fields, regmap config), so make them const for code safety.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://msgid.link/r/20240612-asoc-wcd9xxx-wide-cleanups-v1-8-0d15885b2a06@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
get_channel_map() is supposed to obtain map of channels without
modifying the state of the given DAI, so make the pointer to 'struct
snd_soc_dai' as pointing to const.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://msgid.link/r/20240617-n-asoc-const-auto-selectable-formats-v1-4-8004f346ee38@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
There is no need for implementations of DAI set_channel_map() to modify
contents of passed arrays with actual channel mapping. Additionally,
the caller keeps full ownership of the array.
Constify these pointer arguments so the code will be safer and easier to
read (documenting the caller's ownership).
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://msgid.link/r/20240520-asoc-x1e80100-4-channel-mapping-v4-1-f657159b4aad@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The ID table already has respective entry and MODULE_DEVICE_TABLE and
creates proper alias for platform driver. Having another MODULE_ALIAS
causes the alias to be duplicated.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240414154839.126852-1-krzk@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>
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>
Replace dev_err() in probe() path with dev_err_probe() to:
1. Make code a bit simpler and easier to read,
2. Do not print messages on deferred probe.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230418074630.8681-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Simplify code by using min helper macro for logical evaluation and value
assignment. The change also facilitates code realignment for improved
readability.
Proposed change is identified using minmax.cocci Coccinelle script.
Signed-off-by: Deepak R Varma <drv@mailo.com>
Link: https://lore.kernel.org/r/Y+p2Hn0nrtHiKwPR@ubun2204.myguest.virtualbox.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Slimbus streams are first prepared and then enabled, so the cleanup path
should reverse it. The unprepare sets stream->num_ports to 0 and frees
the stream->ports. Calling disable after unprepare was not really
effective (channels was not deactivated) and could lead to further
issues due to making transfers on unprepared stream.
Fixes: a61f3b4f47 ("ASoC: wcd934x: add support to wcd9340/wcd9341 codec")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220921145354.1683791-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The endianness flag is used on the CODEC side to specify an
ambivalence to endian, typically because it is lost over the hardware
link. This device receives audio over a SLIMbus DAI and as such should
have endianness applied.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220504170905.332415-28-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
SIDO(Single-Inductor Dual-Ouput) Buck powers up both analog and digital
circuits along with internal memory, powering off this is the last thing
that codec should do when going to very low power.
Current code was powering off this Buck if there are no users of sysclk,
which is not correct. Powering off this buck will result in no register access.
This code path was never tested until recently after adding pm support
in SoundWire controller. Fix this by removing the buck poweroff when the
codec is active and also the code that is not used.
Without this patch all the read/write transactions will never complete and
results in SLIMBus Errors like:
qcom,slim-ngd qcom,slim-ngd.1: Tx:MT:0x0, MC:0x60, LA:0xcf failed:-110
wcd934x-codec wcd934x-codec.1.auto: ASoC: error at soc_component_read_no_lock
on wcd934x-codec.1.auto for register: [0x00000d05] -110
qcom,slim-ngd-ctrl 171c0000.slim: Error Interrupt received 0x82000000
Reported-by: Amit Pundir <amit.pundir@linaro.org>
Fixes: a61f3b4f47 ("ASoC: wcd934x: add support to wcd9340/wcd9341 codec")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Tested-by: Amit Pundir <amit.pundir@linaro.org>
Link: https://lore.kernel.org/r/20220407094313.2880-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Quite a quiet release for ASoC, lots of work on drivers and platforms
but nothing too groundbreaking but not much on the core itself:
- Start of moving SoF to support multiple IPC mechanisms.
- Use of NHLT ACPI table to reduce the amount of quirking required for
Intel systems.
- Some building blocks for use in forthcoming Intel AVS driver for
legacy Intel DSP firmwares.
- Support for AMD PDM, Atmel PDMC, Awinic AW8738, i.MX cards with
TLV320AIC31xx, Intel machines with CS35L41 and ESSX8336, Mediatek
MT8181 wideband bluetooth, nVidia Tegra234, Qualcomm SC7280, Renesas
RZ/V2L, Texas Instruments TAS585M
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Merge tag 'asoc-v5.18' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.18
Quite a quiet release for ASoC, lots of work on drivers and platforms
but nothing too groundbreaking but not much on the core itself:
- Start of moving SoF to support multiple IPC mechanisms.
- Use of NHLT ACPI table to reduce the amount of quirking required for
Intel systems.
- Some building blocks for use in forthcoming Intel AVS driver for
legacy Intel DSP firmwares.
- Support for AMD PDM, Atmel PDMC, Awinic AW8738, i.MX cards with
TLV320AIC31xx, Intel machines with CS35L41 and ESSX8336, Mediatek
MT8181 wideband bluetooth, nVidia Tegra234, Qualcomm SC7280, Renesas
RZ/V2L, Texas Instruments TAS585M
The device_node pointer is returned by of_parse_phandle() with refcount
incremented. We should use of_node_put() on it when done.
This is similar to commit 64b92de960
("ASoC: wcd9335: fix a leaked reference by adding missing of_node_put")
Fixes: a61f3b4f47 ("ASoC: wcd934x: add support to wcd9340/wcd9341 codec")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220316083631.14103-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
wcd934x_rx_hph_mode_put currently returns zero eventhough it changes the value.
Fix this, so that change notifications are sent correctly.
Fixes: 1cde8b8223 ("ASoC: wcd934x: add basic controls")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220222183212.11580-10-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
set "HPH Type" Kcontrol max value of WCD_MBHC_HPH_STEREO instead of UINT_MAX.
set "HPHL/R Impedance" Kcontrols max value to INT_MAX instead of UINT_MAX as
max field is integer type.
Without this patch amixer for these controls will show -1 as max value to userspace.
Fixes: 9fb9b1690f ("ASoC: codecs: wcd934x: add mbhc support")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220222183212.11580-9-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
wcd934x_compander_set() currently returns zero eventhough it changes the value.
Fix this, so that change notifications are sent correctly.
Fixes: 1cde8b8223 ("ASoC: wcd934x: add basic controls")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211130160507.22180-4-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Currently each channel is added as list to dai channel list, however
there is danger of adding same channel to multiple dai channel list
which endups corrupting the other list where its already added.
This patch ensures that the channel is actually free before adding to
the dai channel list and also ensures that the channel is on the list
before deleting it.
This check was missing previously, and we did not hit this issue as
we were testing very simple usecases with sequence of amixer commands.
Fixes: a70d924575 ("ASoC: wcd934x: add capture dapm widgets")
Fixes: dd9eb19b56 ("ASoC: wcd934x: add playback dapm widgets")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211130160507.22180-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Error returned from wcd934x_slim_set_hw_params() are not passed to upper layer,
this could be misleading to the user which can start sending stream leading
to unnecessary errors.
Fix this by properly returning the errors.
Fixes: a61f3b4f47 ("ASoC: wcd934x: add support to wcd9340/wcd9341 codec")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211116114623.11891-3-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
WCD934x has Multi Button Headset Control hardware to support Headset insertion,
type detection, 8 headset buttons detection, Over Current detection and Impedence
measurements.
This patch adds support for this feature via common mbhc layer.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210604115230.23259-4-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The snd_soc_dai_ops structures is only stored in the ops field of a
snd_soc_dai_driver structure, so make the snd_soc_dai_ops structure
const to allow the compiler to put it in read-only memory.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Link: https://lore.kernel.org/r/20210408062648.803227-1-yebin10@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
set channel map can be passed with a channel maps, however if
the number of channels that are passed are more than the actual
supported channels then we would be accessing array out of bounds.
So add a sanity check to validate these numbers!
Fixes: a61f3b4f47 ("ASoC: wcd934x: add support to wcd9340/wcd9341 codec")
Reported-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210309142129.14182-4-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
digital gain range is -84dB min to 40dB max, however this was not
correctly specified in the range.
Fix this by with correct range!
Fixes: 1cde8b8223 ("ASoC: wcd934x: add basic controls")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20201028154340.17090-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
We need to use snd_soc_component_read()
instead of snd_soc_component_read32()
This patch renames _read32() to _read()
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/87lfkn4mdy.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix the following coccicheck warning:
sound/soc/codecs/wcd934x.c:3881:8-17: WARNING: Comparison of 0/1 to bool
variable
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20200420042833.19116-1-yanaijie@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Looks like there are some unused headers, remove them.
Seems to be missed while moving to mfd.
Reported-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200306132806.19684-3-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/codecs/wcd934x.c: In function wcd934x_codec_hphdelay_lutbypass:
sound/soc/codecs/wcd934x.c:3395:6: warning: variable hph_comp_ctrl7 set but not used [-Wunused-but-set-variable]
commit da3e83f8bb ("ASoC: wcd934x: add audio routings")
involved this unused variable.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20200210150421.34680-1-yuehaibing@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Clang warns:
../sound/soc/codecs/wcd934x.c:1886:11: warning: address of array
'wcd->rx_chs' will always evaluate to 'true' [-Wpointer-bool-conversion]
if (wcd->rx_chs) {
~~ ~~~~~^~~~~~
../sound/soc/codecs/wcd934x.c:1894:11: warning: address of array
'wcd->tx_chs' will always evaluate to 'true' [-Wpointer-bool-conversion]
if (wcd->tx_chs) {
~~ ~~~~~^~~~~~
2 warnings generated.
Arrays that are in the middle of a struct are never NULL so they don't
need a check like this.
Fixes: a61f3b4f47 ("ASoC: wcd934x: add support to wcd9340/wcd9341 codec")
Link: https://github.com/ClangBuiltLinux/linux/issues/854
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Link: https://lore.kernel.org/r/20200204060143.23393-1-natechancellor@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch adds audio routing for both playback and capture.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20191219103153.14875-8-srinivas.kandagatla@linaro.org
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
