Fix cppcheck warning
[sound/soc/intel/boards/kbl_da7219_max98927.c:179]: (style) Variable
'ret' is assigned a value that is never used.
[sound/soc/intel/boards/kbl_da7219_max98927.c:1098]: (style) Variable
'i' is assigned a value that is never used.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200113210428.27457-9-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix cppcheck warning:
[sound/soc/intel/boards/kbl_da7219_max98927.c:340] ->
[sound/soc/intel/boards/kbl_da7219_max98927.c:348]: (style) Variable
'ret' is reassigned a value before the old one has been used.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200113210428.27457-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix GCC warning with W=1
sound/soc/intel/boards/glk_rt5682_max98357a.c:256:48: warning:
‘constraints_channels’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200113210428.27457-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix GCC warning with W=1, previous cleanup did not remove unnecessary
variable.
sound/soc/sof/intel/hda-dai.c: In function ‘hda_link_pcm_prepare’:
sound/soc/sof/intel/hda-dai.c:265:31: warning: variable ‘hda_stream’
set but not used [-Wunused-but-set-variable]
265 | struct sof_intel_hda_stream *hda_stream;
| ^~~~~~~~~~
Fixes: a3ebccb52e ("ASoC: SOF: Intel: hda: reset link DMA state in prepare")
Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200113205620.27285-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch fixup this error
CC sound/soc/codecs/rt715-sdw.o
linux/sound/soc/codecs/rt715-sdw.c: In function 'rt715_dev_resume':
linux/sound/soc/codecs/rt715-sdw.c:568:28: error: implicit declaration\
of function 'to_sdw_slave_device'; did you mean 'sdw_slave_modalias'?\
[-Werror=implicit-function-declaration]
struct sdw_slave *slave = to_sdw_slave_device(dev);
^~~~~~~~~~~~~~~~~~~
sdw_slave_modalias
linux/sound/soc/codecs/rt715-sdw.c:568:28: warning: initialization of\
'struct sdw_slave *' from 'int' makes pointer from integer without a\
cast [-Wint-conversion]
cc1: some warnings being treated as errors
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87h80yhm9p.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This is the initial amplifier driver for rt1308-sdw.
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20200110014606.17333-1-shumingf@realtek.com
Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
If CONFIG_SND_ATMEL_SOC_DMA=m, build error:
sound/soc/atmel/atmel_ssc_dai.o: In function `atmel_ssc_set_audio':
(.text+0x7cd): undefined reference to `atmel_pcm_dma_platform_register'
Function atmel_pcm_dma_platform_register is defined under
CONFIG SND_ATMEL_SOC_DMA, so select SND_ATMEL_SOC_DMA in
CONFIG SND_ATMEL_SOC_SSC, same to CONFIG_SND_ATMEL_SOC_PDC.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Link: https://lore.kernel.org/r/20200113133242.144550-1-chenzhou10@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
RT711 is in SoundWire mode on link0.
RT1308 is either on SSP2 or on SoundWire link1 (depending on hardware
reworks).
Signed-off-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200110222530.30303-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The two configurations are with the Realtek 3-in-1 board requiring all
4 links to be enabled, or basic configuration with the on-board
RT700 using link1.
For now we only have definitions for CML. CNL and CFL are just
placeholders.
Signed-off-by: Rander Wang <rander.wang@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://lore.kernel.org/r/20200110222530.30303-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The two configurations are with the Realtek 3-in-1 board requiring all
4 links to be enabled, or basic configuration with the on-board RT700
using link0.
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://lore.kernel.org/r/20200110222530.30303-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We cannot really lump SoundWire-based configurations into the same
tables since the mechanisms to identify boards is based on link
configurations and _ADR instead of _HID for I2S, so define new tables
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200110222530.30303-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
For SoundWire support, we added a 'link_mask' to describe the PCB hardware
layout. This helped form a signature that can be used as a first-order way
of detecting the hardware and selecting the machine driver.
The concept of link_mask is however not enough. Some BIOS enable all links,
even when there are no devices physically connected. We can also see
variations with multiple devices attached on one link, or different types
of devices connected on the same link. To accurately represent the
hardware, we need to build static tables where each link exposes a list of
expected devices represented by the 64-bit _ADR field (which uniquely
identifies each device).
The new 'links' field is optional when the link_mask is sufficient to
represent a platform in a unique way.
The existing mechanism to support I2C devices is left as is, it'd be too
invasive to change the existing support for _HID and the notion of link is
not relevant either.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20200110222530.30303-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Any app using ALSA OSS emulation on top of SOF will fail
to error from OSS SNDCTL_DSP_SETFMT ioctl. Reported initially
as an issue with xournalpp (application using PortAudio with
an OSS backend), but applies more generally to other apps
using OSS as well.
Problem is caused by SOF PCM not supporting repeated calls
to hw_params(), without matching calls to pcm_free(). This
is however exactly what the ALSA OSS PCM code is doing when
it is handling the OSS ioctls.
The problem will lead to leaking of DSP resources and eventual
failure of DSP PCM_PARAMS IPC.
BugLink: https://github.com/thesofproject/linux/issues/1510
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200110235751.3404-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The legacy driver uses dummy cpu_dai and platform, SOF requires actual
values to bind.
Signed-off-by: Pan Xiuli <xiuli.pan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200110235751.3404-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The existing machine driver depends on SPI Master capabilities, but
the Kconfig does not model this dependency and the SPI controller
needs to be selected as well.
Without this patch the machine driver probe would fail with the
spi-RT5677AA:00 component never registered by the ACPI/LPSS subsystem.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200110235751.3404-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Commit a857e073ff ("ASoC: txx9: txx9aclc: remove snd_pcm_ops") removed
the last use of the rtd variable but didn't remove its definition,
leading to the following warning/error for MIPS rbtx49xx_defconfig
builds:
sound/soc/txx9/txx9aclc.c: In function 'txx9aclc_pcm_hw_params':
sound/soc/txx9/txx9aclc.c:54:30: error: unused variable 'rtd'
[-Werror=unused-variable]
struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
^~~
Resolve this by removing the unused variable.
Signed-off-by: Paul Burton <paulburton@kernel.org>
Fixes: a857e073ff ("ASoC: txx9: txx9aclc: remove snd_pcm_ops")
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org
Link: https://lore.kernel.org/r/20200109191422.334516-1-paulburton@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
dpcm_fe_dai_shutdown() / soc_compr_free_fe() didn't care pmdown_time.
We already have snd_soc_dapm_stream_stop() for it.
Let's use common method.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87zhewrq9j.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
When we stop stream, if it was Playback, we might need to care
about power down time. In such case, we need to use delayed work.
We have same implementation for it at soc-pcm.c and soc-compress.c,
but we don't want to have duplicate code.
This patch adds snd_soc_dapm_stream_stop(), and share same code.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-By: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/871rs8t4uw.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We need to setup rtd->close_delayed_work_func.
It will be set at snd_soc_dai_compress_new() or soc_new_pcm().
But these setups close_delayed_work() which is same name /
same implemantaion, but different local code.
To reduce duplicate code, this patch moves it as
snd_soc_close_delayed_work() and share same code.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-By: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/8736cot4v2.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
ALSA SoC need to care pinctrl_pm_select_xxx().
It is called at soc-core and soc-pcm.
soc-pcm is controlling it for activate DAI.
soc-core is controlling it for whole system
(= suspend/resume/probe/poweroff).
If we focus to soc-core side, it need to care about BIAS level.
Then, snd_soc_suspend() only is controlling it by Component base (a).
Other functions are DAI base (b).
(a) pinctrl_pm_select_xxx(component->dev, xxx);
(b) pinctrl_pm_select_xxx(dai->dev, xxx);
Because of these unbalance, the code is confusable.
Here, dai->dev and component->dev are same pointer.
Thus, we can replace it component base.
One note here is that it cared DAI (= CPU/Codec) pin before this patch,
after this patch, it cares Component (= CPU/Codec/Platform) pin.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-By: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/874kx4t4v6.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
snd_soc_suspend() are doing below for pinctrl_pm_select_sleep_state()
int snd_soc_suspend(struct device *dev)
{
...
for_each_card_components(card, component) {
...
(1) pinctrl_pm_select_sleep_state(component->dev);
}
for_each_card_rtds(card, rtd) {
...
(2) pinctrl_pm_select_sleep_state(cpu_dai->dev);
}
}
(1) is called for all component (CPU/Codec/Platform), and
(2) is called for CPU DAIs.
Here, component->dev is same as dai->dev.
This means, it is called in duplicate on CPU case.
This patch removes (2).
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-By: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/875zhkt4vc.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Card dai_link has .ignore_suspend, and ALSA SoC cares it when suspend.
For example, like this
for_each_card_rtds(card, rtd) {
if (rtd->dai_link->ignore_suspend)
continue;
...
}
But in snd_soc_suspend(), it doesn't care about
it when suspending Component. This patch cares it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/877e20t4vh.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We don't have snd_soc_rtdcom_list anymore.
Let's rename snd_soc_rtdcom_add() to more understandable
snd_soc_rtd_add_component()
Reported-by: Sridharan, Ranjani <ranjani.sridharan@intel.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/878smgt4vp.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This is the initial codec driver for rt700.
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200110014552.17252-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Current ALSA SoC is using struct snd_soc_rtdcom_list to
connecting component to rtd by using list_head.
struct snd_soc_rtdcom_list {
struct snd_soc_component *component;
struct list_head list; /* rtd::component_list */
};
struct snd_soc_pcm_runtime {
...
struct list_head component_list; /* list of connected components */
...
};
The CPU/Codec/Platform component which will be connected to rtd (a)
is indicated via dai_link at snd_soc_add_pcm_runtime()
int snd_soc_add_pcm_runtime(...)
{
...
/* Find CPU from registered CPUs */
rtd->cpu_dai = snd_soc_find_dai(dai_link->cpus);
...
(a) snd_soc_rtdcom_add(rtd, rtd->cpu_dai->component);
...
/* Find CODEC from registered CODECs */
(b) for_each_link_codecs(dai_link, i, codec) {
rtd->codec_dais[i] = snd_soc_find_dai(codec);
...
(a) snd_soc_rtdcom_add(rtd, rtd->codec_dais[i]->component);
}
...
/* Find PLATFORM from registered PLATFORMs */
(b) for_each_link_platforms(dai_link, i, platform) {
for_each_component(component) {
...
(a) snd_soc_rtdcom_add(rtd, component);
}
}
}
It shows, it is possible to know how many components will be
connected to rtd by using
dai_link->num_cpus
dai_link->num_codecs
dai_link->num_platforms
If so, we can use component pointer array instead of list_head,
in such case, code can be more simple.
This patch removes struct snd_soc_rtdcom_list that is only
of temporary value, and convert to pointer array.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-By: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/87a76wt4wm.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This reverts commit 4e93c1294f (ASoC: max98090: fix incorrect
helper in max98090_dapm_put_enum_double()) which was misapplied.
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This is the initial codec driver for rt711.
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191227054445.27223-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch adds support to WSA8810/WSA8815 Class-D Smart Speaker
Amplifier. This Amplifier is primarily interfaced with SoundWire.
One WSA is used for mono speaker configuration and second one
would give stereo setup.
This patch is tested on SDM845 based DragonBoard DB845c and
Lenovo YOGA C630 Laptop based on SDM850 with WSA8815
speaker amplifiers.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200107135929.3267-3-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch adds bindings for WSA8810/WSA8815 Class-D Smart Speaker
Amplifier. This Amplifier also has a simple thermal sensor for
over temperature and speaker protection.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200107135929.3267-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
In current driver, locks can be taken as follows:
- Register access: take a lock on regmap config and then on clock.
- Master clock provider: take a lock on clock and then on regmap config.
This can lead to the circular locking summarized below.
Remove peripheral clock management through regmap framework, and manage
peripheral clock in driver instead. On register access, lock on clock
is taken first, which allows to avoid possible locking issue.
[ 6696.561513] ======================================================
[ 6696.567670] WARNING: possible circular locking dependency detected
[ 6696.573842] 4.19.49 #866 Not tainted
[ 6696.577397] ------------------------------------------------------
[ 6696.583566] pulseaudio/6439 is trying to acquire lock:
[ 6696.588697] 87b0a25b (enable_lock){..-.}, at: clk_enable_lock+0x64/0x128
[ 6696.595377]
[ 6696.595377] but task is already holding lock:
[ 6696.601197] d858f825 (stm32_sai_sub:1342:(sai->regmap_config)->lock){....}
...
[ 6696.812513] Possible unsafe locking scenario:
[ 6696.812513]
[ 6696.818418] CPU0 CPU1
[ 6696.822935] ---- ----
[ 6696.827451] lock(stm32_sai_sub:1342:(sai->regmap_config)->lock);
[ 6696.833618] lock(enable_lock);
[ 6696.839350] lock(stm32_sai_sub:1342:
(sai->regmap_config)->lock);
[ 6696.848035] lock(enable_lock);
Fixes: 03e78a242a ("ASoC: stm32: sai: add h7 support")
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Link: https://lore.kernel.org/r/20200109083254.478-1-olivier.moysan@st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Commit 62d5ae4caf ("ASoC: max98090: save and restore SHDN when changing
sensitive registers") extended the code for handling many controls by
adding a custom put function to them. That new custom put function
properly handles relations between codec's hardware registers. However
they used card->dapm_mutex to properly serialize those operations. This
in turn triggers a lockdep warning about possible circular dependency.
Fix this by introducing a separate mutex only for serializing the SHDN
hardware register related operations.
This fixes the following lockdep warning observed on Exynos4412-based
Odroid U3 board:
======================================================
WARNING: possible circular locking dependency detected
5.5.0-rc5-next-20200107 #166 Not tainted
------------------------------------------------------
alsactl/1104 is trying to acquire lock:
ed0d50f4 (&card->dapm_mutex){+.+.}, at: max98090_shdn_save+0x1c/0x28
but task is already holding lock:
edb4b49c (&card->controls_rwsem){++++}, at: snd_ctl_ioctl+0xcc/0xbb8
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&card->controls_rwsem){++++}:
snd_ctl_add_replace+0x3c/0x84
dapm_create_or_share_kcontrol+0x24c/0x2e0
snd_soc_dapm_new_widgets+0x308/0x594
snd_soc_bind_card+0x80c/0xad4
devm_snd_soc_register_card+0x34/0x6c
odroid_audio_probe+0x288/0x34c
platform_drv_probe+0x6c/0xa4
really_probe+0x200/0x490
driver_probe_device+0x78/0x1f8
bus_for_each_drv+0x74/0xb8
__device_attach+0xd4/0x16c
bus_probe_device+0x88/0x90
deferred_probe_work_func+0x3c/0xd0
process_one_work+0x22c/0x7c4
worker_thread+0x44/0x524
kthread+0x130/0x164
ret_from_fork+0x14/0x20
0x0
-> #0 (&card->dapm_mutex){+.+.}:
lock_acquire+0xe8/0x270
__mutex_lock+0x9c/0xb18
mutex_lock_nested+0x1c/0x24
max98090_shdn_save+0x1c/0x28
max98090_put_enum_double+0x20/0x40
snd_ctl_ioctl+0x190/0xbb8
ksys_ioctl+0x470/0xaf8
ret_fast_syscall+0x0/0x28
0xbefaa564
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&card->controls_rwsem);
lock(&card->dapm_mutex);
lock(&card->controls_rwsem);
lock(&card->dapm_mutex);
*** DEADLOCK ***
1 lock held by alsactl/1104:
#0: edb4b49c (&card->controls_rwsem){++++}, at: snd_ctl_ioctl+0xcc/0xbb8
stack backtrace:
CPU: 0 PID: 1104 Comm: alsactl Not tainted 5.5.0-rc5-next-20200107 #166
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
(unwind_backtrace) from [<c010e180>] (show_stack+0x10/0x14)
(show_stack) from [<c0b2a09c>] (dump_stack+0xb4/0xe0)
(dump_stack) from [<c018a1c0>] (check_noncircular+0x1ec/0x208)
(check_noncircular) from [<c018c5dc>] (__lock_acquire+0x1210/0x25ec)
(__lock_acquire) from [<c018e2d8>] (lock_acquire+0xe8/0x270)
(lock_acquire) from [<c0b49678>] (__mutex_lock+0x9c/0xb18)
(__mutex_lock) from [<c0b4a110>] (mutex_lock_nested+0x1c/0x24)
(mutex_lock_nested) from [<c0839b3c>] (max98090_shdn_save+0x1c/0x28)
(max98090_shdn_save) from [<c083a5b8>] (max98090_put_enum_double+0x20/0x40)
(max98090_put_enum_double) from [<c080d0e8>] (snd_ctl_ioctl+0x190/0xbb8)
(snd_ctl_ioctl) from [<c02cafec>] (ksys_ioctl+0x470/0xaf8)
(ksys_ioctl) from [<c0101000>] (ret_fast_syscall+0x0/0x28)
...
Fixes: 62d5ae4caf ("ASoC: max98090: save and restore SHDN when changing sensitive registers")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20200108115007.31095-2-m.szyprowski@samsung.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Commit 62d5ae4caf ("ASoC: max98090: save and restore SHDN when changing
sensitive registers") extended the code for handling "LTENL Mux", "LTENR
Mux", "LBENL Mux" and "LBENR Mux" controls by adding a custom
max98090_dapm_put_enum_double() function to them. However that function
used incorrect helper to get its component object. Fix this by using the
proper snd_soc_dapm_* helper.
This fixes the following NULL pointer exception observed on
Exynos4412-based Odroid U3 board:
8<--- cut here ---
Unable to handle kernel NULL pointer dereference at virtual address 000000b0
pgd = (ptrval)
[000000b0] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 1104 Comm: alsactl Not tainted 5.5.0-rc5-next-20200107 #166
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
PC is at __mutex_lock+0x54/0xb18
LR is at ___might_sleep+0x3c/0x2e0
...
Process alsactl (pid: 1104, stack limit = 0x(ptrval))
...
[<c0b49630>] (__mutex_lock) from [<c0b4a110>] (mutex_lock_nested+0x1c/0x24)
[<c0b4a110>] (mutex_lock_nested) from [<c0839b3c>] (max98090_shdn_save+0x1c/0x28)
[<c0839b3c>] (max98090_shdn_save) from [<c083a4f8>] (max98090_dapm_put_enum_double+0x20/0x40)
[<c083a4f8>] (max98090_dapm_put_enum_double) from [<c080d0e8>] (snd_ctl_ioctl+0x190/0xbb8)
[<c080d0e8>] (snd_ctl_ioctl) from [<c02cafec>] (ksys_ioctl+0x470/0xaf8)
[<c02cafec>] (ksys_ioctl) from [<c0101000>] (ret_fast_syscall+0x0/0x28)
...
---[ end trace 0e93f0580f4b9241 ]---
Fixes: 62d5ae4caf ("ASoC: max98090: save and restore SHDN when changing sensitive registers")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200108115007.31095-1-m.szyprowski@samsung.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Commit 62d5ae4caf ("ASoC: max98090: save and restore SHDN when changing
sensitive registers") extended the code for handling "LTENL Mux", "LTENR
Mux", "LBENL Mux" and "LBENR Mux" controls by adding a custom
max98090_dapm_put_enum_double() function to them. However that function
used incorrect helper to get its component object. Fix this by using the
proper snd_soc_dapm_* helper.
This fixes the following NULL pointer exception observed on
Exynos4412-based Odroid U3 board:
8<--- cut here ---
Unable to handle kernel NULL pointer dereference at virtual address 000000b0
pgd = (ptrval)
[000000b0] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 1104 Comm: alsactl Not tainted 5.5.0-rc5-next-20200107 #166
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
PC is at __mutex_lock+0x54/0xb18
LR is at ___might_sleep+0x3c/0x2e0
...
Process alsactl (pid: 1104, stack limit = 0x(ptrval))
...
[<c0b49630>] (__mutex_lock) from [<c0b4a110>] (mutex_lock_nested+0x1c/0x24)
[<c0b4a110>] (mutex_lock_nested) from [<c0839b3c>] (max98090_shdn_save+0x1c/0x28)
[<c0839b3c>] (max98090_shdn_save) from [<c083a4f8>] (max98090_dapm_put_enum_double+0x20/0x40)
[<c083a4f8>] (max98090_dapm_put_enum_double) from [<c080d0e8>] (snd_ctl_ioctl+0x190/0xbb8)
[<c080d0e8>] (snd_ctl_ioctl) from [<c02cafec>] (ksys_ioctl+0x470/0xaf8)
[<c02cafec>] (ksys_ioctl) from [<c0101000>] (ret_fast_syscall+0x0/0x28)
...
---[ end trace 0e93f0580f4b9241 ]---
Fixes: 62d5ae4caf ("ASoC: max98090: save and restore SHDN when changing sensitive registers")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200108115007.31095-1-m.szyprowski@samsung.com
Signed-off-by: Mark Brown <broonie@kernel.org>
