Microchip PDMC IP doesn't filter microphone noises on startup. By default,
it captures data received from digital microphones after
the MCHP_PDMC_MR.EN bits are set. Thus when enable is set on PDMC side the
digital microphones might not be ready yet and PDMC captures data from then
in this time. This data captured is poc noise. To avoid this the software
workaround is to the following:
1/ enable PDMC channel
2/ wait 150ms (on SAMA7G5-EK setup)
3/ execute 16 dummy reads from RHR
4/ clear interrupts
5/ enable interrupts
6/ enable DMA channel
Fixes: 50291652af ("ASoC: atmel: mchp-pdmc: add PDMC driver")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20230228110145.3770525-4-claudiu.beznea@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix the reset sequence of reads and writes that we invoke from within
the early trigger. It looks like there never was a SERDES_CONF_SOME_RST
bit that should be involved in the reset sequence, and its presence in
the driver code is a mistake from earlier.
Instead, the reset sequence should go as follows: We should switch the
the SERDES unit's SYNC_SEL mux to the value of 7 (so outside the range
of 1...6 representing cluster's SYNCGEN units), then raise the RST bit
in SERDES_STATUS and wait for it to clear.
Properly resetting the SERDES unit fixes frame desynchronization hazard
in case of long frames (longer than 4 used slots). The desynchronization
manifests itself by rotating the PCM channels.
Fixes: 3df5d0d972 ("ASoC: apple: mca: Start new platform driver")
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20230224153302.45365-2-povik+lin@cutebit.org
Signed-off-by: Mark Brown <broonie@kernel.org>
In mt8188_etdm_clk_src_sel_put() function, val retrieved by FIELD_PREP
is shifted to the corresponding bit filed, so it can compare with the
register value directly.
Originally, the redundant bit shift of the register value results in
the wrong comparison result, so we remove bit shift operation in the
patch.
Fixes: 2babb47774 ("ASoC: mediatek: mt8188: support etdm in platform driver")
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Link: https://lore.kernel.org/r/20230215125017.16044-1-trevor.wu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Peter Ujfalusi <peter.ujfalusi@linux.intel.com>:
The following series will enable the the Low Power Audio (LPA)
playback on Intel platforms when using IPC4.
The support is closely follows how IPC3 supports similar use case.
All depending patches are upstream and our CI have been testing
this feature for some time without issues.
Variable ret is initialed but is never modified or used except for
returning the initial value 0. The value can be directly returned
instead and the variable definition can be dropped.
Issue identified using returnvar.cocci Coccinelle semantic patch.
Signed-off-by: Deepak R Varma <drv@mailo.com>
Link: https://lore.kernel.org/r/Y+p9r5y9DPSJkPVf@ubun2204.myguest.virtualbox.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The rt5682s driver switches its regmap to cache-only when the
device suspends and back to regular mode on resume. When the
jack detect interrupt fires rt5682s_irq() schedules the jack
detect work. This can result in invalid reads from the regmap
in cache-only mode if the work runs before the device has
resumed:
[ 19.672162] rt5682s 2-001a: ASoC: error at soc_component_read_no_lock on rt5682s.2-001a for register: [0x000000f0] -16
Disable the jack detection interrupt during suspend and
re-enable it on resume. The driver already schedules the
jack detection work on resume, so any state change during
suspend is still handled.
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Link: https://lore.kernel.org/r/20230209012002.1.Ib4d6481f1d38a6e7b8c9e04913c02ca88c216cf6@changeid
Signed-off-by: Mark Brown <broonie@kernel.org>
When the 'ti,gpio-config' property is not defined, the
device_property_count_u32() will return an error, rather than zero.
The current check, only handles a return value of zero, which assumes that
the property is defined and has nothing defined.
This change extends the check to also check for an error case (most likely
to be hit by the case that the 'ti,gpio-config' is not defined).
In case that the 'ti,gpio-config' and the returned 'gpio_count' is not
correct, there is a 'if (gpio_count != ADCX140_NUM_GPIO_CFGS)' check, a few
lines lower that will return -EINVAL.
This means that someone tried to define 'ti,gpio-config', but with the
wrong number of GPIOs.
Fixes: d521432149 ("ASoC: tlv320adcx140: Add support for configuring GPIO pin")
Signed-off-by: Steffen Aschbacher <steffen.aschbacher@stihl.de>
Signed-off-by: Alexandru Ardelean <alex@shruggie.ro>
Link: https://lore.kernel.org/r/20230213073805.14640-1-alex@shruggie.ro
Signed-off-by: Mark Brown <broonie@kernel.org>
Commit 2458adb8f9
("SoC: simple-card-utils: set 0Hz to sysclk when shutdown")
added a call to snd_soc_dai_set_sysclk() with 0 Hz frequency. Being
propagated further it causes a division by zero in clk-ep93xx driver:
Division by zero in kernel.
CPU: 0 PID: 52 Comm: aplay Tainted: G W 6.2.0-rc4-... #1
Hardware name: Generic DT based system
unwind_backtrace from show_stack+0x10/0x18
show_stack from dump_stack_lvl+0x28/0x34
dump_stack_lvl from __div0+0x10/0x1c
__div0 from Ldiv0+0x8/0x1c
Ldiv0 from ep93xx_mux_determine_rate+0x78/0x1d0
ep93xx_mux_determine_rate from clk_core_round_rate_nolock+0x48/0xc8
clk_core_round_rate_nolock from clk_core_set_rate_nolock+0x48/0x160
clk_core_set_rate_nolock from clk_set_rate+0x30/0x8c
clk_set_rate from ep93xx_i2s_set_sysclk+0x30/0x6c
ep93xx_i2s_set_sysclk from snd_soc_dai_set_sysclk+0x3c/0xa4
snd_soc_dai_set_sysclk from asoc_simple_shutdown+0xb8/0x164
asoc_simple_shutdown from snd_soc_link_shutdown+0x44/0x54
snd_soc_link_shutdown from soc_pcm_clean+0x78/0x180
soc_pcm_clean from soc_pcm_close+0x28/0x40
soc_pcm_close from snd_pcm_release_substream.part.0+0x3c/0x84
snd_pcm_release_substream.part.0 from snd_pcm_release+0x40/0x88
snd_pcm_release from __fput+0x74/0x278
There has been commit f1879d7b98 ("ASoC: rockchip: ignore 0Hz sysclk"),
but it prepared by far not all drivers.
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Link: https://lore.kernel.org/r/20230212220923.258414-1-alexander.sverdlin@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
From q6dsp side issues are around locking of position pointer and handle
From LPASS codec side most of the staiblity issues were around runtime pm,:
While testing X13s audio, we found multiple stablity issues this patchset
fixes these issues.
From q6dsp side issues are around locking of position pointer and handle
multiple prepare cases along with pulse audio timerbased scheduling workaround.
From LPASS codec side most of the staiblity issues were around runtime pm,
hitting various issues as the codec was firstly resetting the soundwire block
for every clk disable/enable which is taking the slaves out of sync and
resulting in re-enumerating. Second issue was around fsgen clk is not
brining up the codec out of suspend as it was not added after
runtime pm enabled. Final issue was with codec mclk rate which should
have been 192KHz same as npl instead of 96KHz. We were getting lucky as
wsa drivers are setting the same clk to 192KHz.
With this patches, x13s audio is pretty stable.
Merge series from Peter Ujfalusi <peter.ujfalusi@linux.intel.com>:
In a course of creating complicated topologies where multiple output pins of a
copier is enabled, we have discovered that additional configuration needs to be
sent to the firmware to make the use cases working.
Merge series from Herve Codina <herve.codina@bootlin.com>:
The Infineon PEB2466 codec is a programmable DSP-based four channels
codec with filters capabilities.
It also provides signals as GPIOs.
The WCD9340 audio codec appears on Slimbus twice: as IFD device without
properties and the actual audio-codec referencing the former via
wcd9340_ifd. Allow in the binding both versions to fix several warnings
like:
sdm850-samsung-w737.dtb: ifd@0,0: 'reset-gpios' is a required property
sdm850-samsung-w737.dtb: ifd@0,0: 'slim-ifc-dev' is a required property
sdm850-samsung-w737.dtb: ifd@0,0: 'interrupt-controller' is a required property
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230206180805.6621-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
