The firmware version can be extracted from the extended
manifest content. This information known at build time
does not need to be provided in a mailbox.
Signed-off-by: Karol Trzcinski <karolx.trzcinski@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20200520165911.21696-4-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Extended manifest is a place to store build time known firmware
metadata, for example firmware version or used compiler description.
Given information is read on host side before firmware startup.
This part of output binary is located as a first structure in binary
file.
Extended manifest should be skipped in firmware loading routine.
Signed-off-by: Karol Trzcinski <karolx.trzcinski@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20200520165911.21696-3-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Condition in if statement should be same as trace message
and FW size equal to zero (after skipping offset) should
be marked as invalid.
Signed-off-by: Karol Trzcinski <karolx.trzcinski@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20200520165911.21696-2-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
dai_link related function should be implemented at soc-link.c.
This patch adds snd_soc_link_compr_set_params().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/87sgfo3k6q.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
dai_link related function should be implemented at soc-link.c.
This patch adds snd_soc_link_compr_shutdown().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/87tv043k6u.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
dai_link related function should be implemented at soc-link.c.
This patch adds snd_soc_link_compr_startup().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/87v9kk3k6y.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
dai_link related function should be implemented at soc-link.c.
This patch adds snd_soc_link_be_hw_params_fixup().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/87wo503k73.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
"rtd" can be created from "substream".
Let's cleanup snd_soc_link_xxx().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/87y2pg3k78.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
dai_link related function should be implemented at
soc-link.c.
This patch moves soc-pcm soc_rtd_xxx()
to soc-link as snd_soc_link_xxx()
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/87zh9w3k7k.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Current ALSA SoC has many dai_link->xxx() functions.
But, it is implemented randomly at random place.
This patch creats new soc-link.c and collect dai_link related
operation into it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/871rn84ys5.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Updating power management register requires toggling the shutdown
bit otherwise it causes unexpected behavior of the codec.
However, toggling the shutdown bit results in loud speaker crackling.
Setup the power management register only at startup to avoid that.
Signed-off-by: Pavel Dobias <dobias@2n.cz>
Link: https://lore.kernel.org/r/20200522142957.18364-3-dobias@2n.cz
Signed-off-by: Mark Brown <broonie@kernel.org>
MAX9867 codec has a possibility of connecting digital microphones.
Add DAPM controls to be able to enable them.
Signed-off-by: Pavel Dobias <dobias@2n.cz>
Link: https://lore.kernel.org/r/20200522142957.18364-2-dobias@2n.cz
Signed-off-by: Mark Brown <broonie@kernel.org>
Just a few small fixes: the only significant one is a slight
improvement for PCM running position update with no-period-elapsed
case while the rest are HD-audio fixups and ice1712 model quirk.
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Merge tag 'sound-5.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Just a few small fixes: the only significant one is a slight
improvement for PCM running position update with no-period-elapsed
case while the rest are HD-audio fixups and ice1712 model quirk"
* tag 'sound-5.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek - Add more fixup entries for Clevo machines
ALSA: iec1712: Initialize STDSP24 properly when using the model=staudio option
ALSA: hda/realtek - Fix silent output on Gigabyte X570 Aorus Xtreme
ALSA: pcm: fix incorrect hw_base increase
This commit splits the method to switch fetching mode for protocol
version 2 so that model-dependent operations are explicitly defined.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200519111641.123211-15-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit splits the method to get clock source for protocol
version 3 so that model-dependent operations are explicitly defined.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200519111641.123211-14-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit splits the method to get clock source for protocol
version 2 so that model-dependent operations are explicitly defined.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200519111641.123211-13-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit adds alternative functions to detect packet format so that
each function corresponds to each model.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200519111641.123211-9-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit adds alternative functions to detect packet format so that
each function corresponds to each model.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200519111641.123211-8-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
In MOTU protocol, data block consists of SPH and 24-bit chunks
aligned to quadlet. The number of chunks per data block is specific
to model. For models with optical interface, the number differs
depending on I/O settings for the interface (ADAT, TOSLINK).
Currently the number is calculated from flags in model-specific
data. However this is weak in the case that the model has quirks.
Actually, for quirks of some models, flags are used against their
original meanings.
This commit adds model-specific table of chunk count. For future
integration, this table is based on the calculation.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200519111641.123211-7-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The most of members in spec data is used in each protocol file. It's
better to capsulate the data to the file.
This commit moves the data to the file for protocol version 3.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200519111641.123211-3-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The most of members in spec data is used in each protocol file. It's
better to capsulate the data to the file.
This commit moves the data to the file for protocol version 2.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200519111641.123211-2-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
As these boards have been removed from the pxa tree, amend accordingly
the sound subsystem.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Mike Rapoport <rppt@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200521185140.27276-3-robert.jarzmik@free.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Add Mono Playback switch to codec controls which enables codec's
capability of mixing left and right channel at the DAC output.
Signed-off-by: Pavel Dobias <dobias@2n.cz>
Link: https://lore.kernel.org/r/20200520071904.15801-5-dobias@2n.cz
Signed-off-by: Mark Brown <broonie@kernel.org>
MAX9867 codec doesn't have reset pin, so the registers don't
have default values in the case of reboot without powering off.
Remove the reg_defaults struct and let the regmap read initial
state of the registers at startup instead of taking them from
reg_defaults struct.
Signed-off-by: Pavel Dobias <dobias@2n.cz>
Link: https://lore.kernel.org/r/20200520071904.15801-2-dobias@2n.cz
Signed-off-by: Mark Brown <broonie@kernel.org>
If we fail after pm_runtime_enable(), we fail to undo it. Same with
clk_prepare_enable(). Let's order them after all things that can fail.
Fixes: 7d98cc6482 ("ASoC: mmp-sspa: Add support for the runtime power management")
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lore.kernel.org/r/20200520083516.2120802-1-lkundrak@v3.sk
Signed-off-by: Mark Brown <broonie@kernel.org>
This makes it possible to select CONFIG_SND_MMP_SOC_SSPA directly, as
opposed to via CONFIG_SND_MMP_SOC, and for the driver to bind to a device
tree node. That makes the driver useful on Device Tree based systems,
with audio-graph-card or simple-card.
The aforementioned card drivers control the master clock themselves and
don't call the set_dai_sysclk() or set_dai_pll(), thus the respective
handlers don't serve any purpose anymore. Instead, they return early and
the hw_params() handler sets the appropriate bitclk itself.
The register range is split into two -- for the RX block and for the TX
block. On a MMP2 there are two pairs of them; the first one has the
clock controller in the middle, while the second just has a hole:
0xd42a0c00 - 0xd42a0c30 RX1
0xd42a0c30 - 0xd42a0c40 Clocks
0xd42a0c80 - 0xd42a0cb0 TX1
0xd42a0d00 - 0xd42a0d30 RX2
0xd42a0d80 - 0xd42a0cb0 TX2
For this reason, mmp_sspa_write_reg() and mmp_sspa_read_reg() are
replaced with direct calls to I/O routines.
Tested on a MMP2-based OLPC XO-1.75 laptop with rt5631 coded, mmp_tdma DMA
engine and MMP2 clock controller glued together with audio-graph-card.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lore.kernel.org/r/20200511210134.1224532-12-lkundrak@v3.sk
Signed-off-by: Mark Brown <broonie@kernel.org>
Removed api config_pdm_stream_params().
Modified switch case for channel check.
Default case should return -EINVAL.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20200519143422.18255-2-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Removed unused variable from code to fix the kernel warning.
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20200519143422.18255-1-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The IRQ numbers may change depending on the SoC, so do not pass the IRQ
numbers in the comments.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20200518185448.6116-2-festevam@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
There is no need to use ifdef's around the power managament
related functions, as they are already using the __maybe_unused
notation.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20200518185448.6116-1-festevam@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The processing clock is different for platforms, so it is better
to set ASR76K and ASR56K based on processing clock, rather than
hard coding the value for them.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Mihai Serban <mihai.serban@nxp.com>
Link: https://lore.kernel.org/r/1589278979-31008-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Create platform devices for generic dmic codec driver
and machine driver.
These platform devices required for creation of sound card.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200518171704.24999-13-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Renoir ACP3x drivers can be built by selecting necessary
kernel config option.
The patch enables build support of the same.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200518171704.24999-12-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Whenever audio data equal to the PDM watermark level
are consumed, interrupt is generated.
Acknowledge the interrupt.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200518171704.24999-7-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
PDM platform driver binds to the platform device created by
ACP3x PCI device. PDM driver registers ALSA DMA and CPU DAI
components with ASoC framework.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200518171704.24999-6-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
ACP 3x IP has PDM decoder as one of IP blocks.
Create a platform device for it, so that the PDM platform driver
can be bound to this device.
Pass PCI resources like MMIO, irq to this platform device.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200518171704.24999-5-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
ACP is a PCI audio device.
This patch adds PCI driver to bind to this device and get
PCI resources.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200518171704.24999-3-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add register header for ACP3x IP in Renoir platform.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200518171704.24999-2-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
A few known Clevo machines (PC50, PC70, X170) with ALC1220 codec need
the existing quirk for pins for PB51 and co.
Signed-off-by: PeiSen Hou <pshou@realtek.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200519065012.13119-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The ST Audio ADCIII is an STDSP24 card plus extension box. With commit
e8a91ae18b ("ALSA: ice1712: Add support for STAudio ADCIII") we
enabled the ADCIII ports using the model=staudio option but forgot
this part to ensure the STDSP24 card is initialized properly.
Fixes: e8a91ae18b ("ALSA: ice1712: Add support for STAudio ADCIII")
Signed-off-by: Scott Bahling <sbahling@suse.com>
Cc: <stable@vger.kernel.org>
BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1048934
Link: https://lore.kernel.org/r/20200518175728.28766-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The Toshiba Encore WT8-A tablet almost fully works with the default
settings for non-CR Bay Trail devices. The only problem is that its
jack-detect switch is not inverted (it is active high instead of
the normal active low).
Add a quirk for this model using the default settings +
BYT_RT5640_JD_NOT_INV.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200518072416.5348-1-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The xmax values for Master Playback Volume and Mic Boost
Capture Volume are specified incorrectly (one greater)
which results in the wrong dB gain being shown to the user
in the case of Master Playback Volume.
Signed-off-by: Pavel Dobias <dobias@2n.cz>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200515120757.24669-1-dobias@2n.cz
Signed-off-by: Mark Brown <broonie@kernel.org>
Hi,
here's a series of minor fixes and improvements to SOF. Add support
for smart amplifier component type. Cover more systems by relaxing
match rules for the generic Soundwire machine driver. Fix issues with
driver unload and address a few compiler warnings.
Daniel Baluta (2):
ASoC: SOF: Do nothing when DSP PM callbacks are not set
ASoC: SOF: define INFO_ flags in dsp_ops
Keyon Jie (1):
ASoC: SOF: topology: add support to smart amplifier
Marcin Rajwa (2):
ASoC: SOF: add a power_down_notify method
ASoC: SOF: inform DSP that driver is going to be removed
Pierre-Louis Bossart (2):
ASoC: SOF: imx: make dsp_ops static
ASoC: SOF: imx: make imx8m_dsp_ops static
randerwang (1):
ASoC: SOF: Intel: sdw: relax sdw machine select constraints
include/sound/sof/topology.h | 2 ++
sound/soc/sof/core.c | 6 ++++++
sound/soc/sof/imx/imx8.c | 2 +-
sound/soc/sof/imx/imx8m.c | 8 +++++++-
sound/soc/sof/intel/hda.c | 10 +++++++++-
sound/soc/sof/pm.c | 19 +++++++++++++++++--
sound/soc/sof/sof-priv.h | 1 +
sound/soc/sof/topology.c | 1 +
8 files changed, 44 insertions(+), 5 deletions(-)
--
2.26.0
Hi,
This extends the da7213 driver to be used with simple-audio-card in
combination with a fixed clock. Here is a snippet of the downstream
board's DT, that is supposed to be supported by this patchset.
---------------------------------------------------------------------
/ {
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "audio-card";
simple-audio-card,format = "i2s";
simple-audio-card,bitclock-master = <&dailink_master>;
simple-audio-card,frame-master = <&dailink_master>;
simple-audio-card,widgets = "Speaker", "Ext Spk";
simple-audio-card,audio-routing = "Ext Spk", "LINE";
simple-audio-card,cpu {
sound-dai = <&ssi1>;
};
dailink_master: simple-audio-card,codec {
sound-dai = <&codec>;
};
};
clk_ext_audio_codec: clock-codec {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <12288000>;
};
};
&i2c1 {
codec: audio-codec@1a {
compatible = "dlg,da7212";
reg = <0x1a>;
#sound-dai-cells = <0>;
VDDA-supply = <®_2v5_audio>;
VDDSP-supply = <®_5v0_audio>;
VDDMIC-supply = <®_3v3_audio>;
VDDIO-supply = <®_3v3_audio>;
clocks = <&clk_ext_audio_codec>;
clock-names = "mclk";
};
};
---------------------------------------------------------------------
This is mostly a resend of PATCHv2. There was quite a bit of discussion
for the last patch. As far as I can see no better solution was found and
the patch is fine as is. Sorry for the delay in sending another revision.
Changes since PATCHv2:
* https://lore.kernel.org/alsa-devel/20191120152406.2744-1-sebastian.reichel@collabora.com/
* dropped patch converting DA7213 into selectable Kconfig option (merged)
* fix compatible string in patch 1 (DT binding) as pointed out by Adam Thomson
* collected Reviewed-by from Adam Thomson for patch 2-4
Changes since PATCHv1:
* https://lore.kernel.org/alsa-devel/20191108174843.11227-1-sebastian.reichel@collabora.com/
* add patch adding da7212 compatible to DT bindings
* update regulator patch, so that VDDA is enabled together with VDDIO
while the device is enabled to avoid device reset
* update clock patch, so that automatic PLL handling is not enabled
when PLL is configured manually
* update clock patch, so that automatic PLL is disabled when the device
is suspended
* update clock patch, so that automatic PLL is configured into bypass
mode when possible
-- Sebastian
Sebastian Reichel (5):
ASoC: da7213: Add da7212 DT compatible
ASoC: da7213: Add regulator support
ASoC: da7213: move set_sysclk to codec level
ASoC: da7213: move set_pll to codec level
ASoC: da7213: add default clock handling
.../devicetree/bindings/sound/da7213.txt | 8 +-
sound/soc/codecs/da7213.c | 172 ++++++++++++++++--
sound/soc/codecs/da7213.h | 11 ++
3 files changed, 175 insertions(+), 16 deletions(-)
--
2.26.2
This fixes the issue of driver not getting auto loaded with
MODULE_ALIAS.
With this patch:
$find /sys/devices -name modalias -print0 | xargs -0 grep -i acp3x
/sys/devices/pci0000:00/0000:00:08.1/0000:03:00.5/acp3x_i2s_playcap.2/
modalias:platform:acp3x_i2s_playcap
/sys/devices/pci0000:00/0000:00:08.1/0000:03:00.5/acp3x_i2s_playcap.0/
modalias:platform:acp3x_i2s_playcap
/sys/devices/pci0000:00/0000:00:08.1/0000:03:00.5/acp3x_rv_i2s_dma.0/
modalias:platform:acp3x_rv_i2s_dma
/sys/devices/pci0000:00/0000:00:08.1/0000:03:00.5/acp3x_i2s_playcap.1/
modalias:platform:acp3x_i2s_playcap
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Link: https://lore.kernel.org/r/20200518043913.40646-1-akshu.agrawal@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
No one is using dai->active, snd_soc_component_is_active().
Let's remove these.
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/87imgy58hp.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We have snd_soc_dai/dai_stream/component_active() macro
This patch uses it.
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/87k11e58hu.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We have snd_soc_dai/dai_stream/component_active() macro
This patch uses it.
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/87lflu58hy.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We have snd_soc_dai/dai_stream/component_active() macro
This patch uses it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/87mu6a58i3.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We have snd_soc_dai/dai_stream/component_active() macro
This patch uses it.
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/87o8qq58ia.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We have snd_soc_dai/dai_stream/component_active() macro
This patch uses it.
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/87pnb658if.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We have snd_soc_dai/dai_stream/component_active() macro
This patch uses it.
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/87r1vm58ik.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We have snd_soc_dai/dai_stream/component_active() macro
This patch uses it.
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/87sgg258io.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We have snd_soc_dai/dai_stream/component_active() macro
This patch uses it.
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/87tv0i58it.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We have snd_soc_dai/dai_stream/component_active() macro
This patch uses it.
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/87v9ky58iy.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We have snd_soc_dai/dai_stream/component_active() macro
This patch uses it.
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/87wo5e58j4.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We have snd_soc_dai/dai_stream/component_active() macro
This patch uses it.
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/87y2pu58ja.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We have snd_soc_dai/dai_stream/component_active() macro
This patch uses it.
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/87zhaa58je.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We have snd_soc_dai/dai_stream/component_active() macro
This patch uses it.
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/871rnm6n3z.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We have snd_soc_dai/dai_stream/component_active() macro
This patch uses it.
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/8736826n44.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Current snd_soc_dai_action() is updating
dai->stream_active for Playback/Capture (A),
dai->active for DAI (B)
void snd_soc_dai_action(struct snd_soc_dai *dai,
int stream, int action)
{
(A) dai->stream_active[stream] += action;
(B) dai->active += action;
dai->component->active += action;
}
But, these are very verbose, because we can calculate
DAI active from stream_active.
This patch adds snd_soc_dai_active() which calculate
DAI active from DAI stream_active.
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/877dxe6n4i.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
soc-dapm.c :: snd_soc_dai_link_event_pre_pmu() / snd_soc_dai_link_event()
are directly updating dai->active without caring about
stream_active / component->active.
It is breaking xxx_active count balance.
This patch uses snd_soc_dai_action() for it.
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/878shu6n4n.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
snd_soc_runtime_action() updates DAI's xxx_active.
We should update these in the same time, and
it can be implemented at soc-dai.c.
This patch adds snd_soc_dai_action() for it.
This is prepare for xxx_active cleanup.
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/87a72a6n4s.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
snd_soc_runtime_activate()/deactivate() are implemented by global function
which are just calling snd_soc_runtime_action().
We can replace it to macro, and this patch do it.
This patch is prepare for xxx_active cleanup.
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/87blmq6n4y.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Move set_pll function to component level, so that it can be used at
both component and DAI level.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20200511132544.82364-5-sebastian.reichel@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Move set_sysclk function to component level, so that it can be used at
both component and DAI level.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20200511132544.82364-4-sebastian.reichel@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This adds support for most regulators of da7212 for improved
power management. The only thing skipped was the speaker supply,
which has some undocumented dependencies. It's supposed to be
either always-enabled or always-disabled.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20200511132544.82364-3-sebastian.reichel@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Use same mapping as in all other machine drivers:
BTN_0 : KEY_PLAYPAUSE
BTN_1 : KEY_VOICECOMMAND
BTN_2 : KEY_VOLUMEUP
BTN_3 : KEY_VOLUMEDOWN
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Link: https://lore.kernel.org/r/20200515210731.10942-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Use same mapping as in all other machine drivers:
BTN_0 : KEY_PLAYPAUSE
BTN_1 : KEY_VOICECOMMAND
BTN_2 : KEY_VOLUMEUP
BTN_3 : KEY_VOLUMEDOWN
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Link: https://lore.kernel.org/r/20200515210731.10942-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Use same mapping as in all other machine drivers:
BTN_0 : KEY_PLAYPAUSE
BTN_1 : KEY_VOICECOMMAND
BTN_2 : KEY_VOLUMEUP
BTN_3 : KEY_VOLUMEDOWN
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Link: https://lore.kernel.org/r/20200515210731.10942-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The component string attributes are separated by spaces, not commas.
Fixes: b1ca2f63e2 ("ASoC: Intel: sof_sdw: add amp number in components string for ucm")
Reported-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200515210731.10942-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Remove obsolete reference to Broxton since the machine driver will be
reused on other platforms, e.g. Up Extreme.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20200515210731.10942-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This was in the SOF tree but lost in upstream contributions.
Fixes: afb93d7165 ("ASoC: SOF: imx: Add i.MX8M HW support")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200515135958.17511-9-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This was in the SOF tree but lost in upstream contributions
Fixes: 202acc565a ("ASoC: SOF: imx: Add i.MX8 HW support")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200515135958.17511-8-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
In the past, the INFO_ flags such as PAUSE/NO_PERIOD_WAKEUP were
defined in the SOF PCM core, but that was changed since
commit 27e322fabd ("ASoC: SOF: define INFO_ flags in dsp_ops")
Now these flags must be set in DSP ops.
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20200515135958.17511-7-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
On some platforms such as Up Extreme all links are enabled but only one
link can be used by external codec. Instead of exact match of two masks,
first check whether link_mask of mach is subset of link_mask supported
by hw and then go on searching link_adr.
Signed-off-by: randerwang <rander.wang@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20200515135958.17511-6-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add smart amplifier component support, which is designed as another new
type of process component and used for speaker protection algorithm
integration.
Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200515135958.17511-5-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch invokes the DSP power down notifier to inform
DSP that driver is going to be removed.
The module removal entails DSP power down, disabling of
IRQs and more. Therefore it is highly recommended to inform
the DSP about this upcoming event.
Due to hardware limitations on some Intel platforms it is necessary
to power gate all LPSRAM banks that were enabled prior to controller
reset. Otherwise, an attempt to write LPSRAM control registers may
have no effect.
Signed-off-by: Marcin Rajwa <marcin.rajwa@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20200515135958.17511-4-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch adds a snd_sof_dsp_power_down_notify() method which aims to
prepare the DSP for the upcoming power down.
This new function make use of SOF_IPC_PM_CTX_SAVE message.
Signed-off-by: Marcin Rajwa <marcin.rajwa@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20200515135958.17511-3-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This provides a better separation between runtime and PM sleep
callbacks.
Only do nothing if given runtime flag is set and calback is not set.
With the current implementation, if PM sleep callback is set but runtime
callback is not set then at runtime resume we reload the firmware even
if we do not support runtime resume callback.
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20200515135958.17511-2-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The .read_prop callback is supposed to be called by the SoundWire core
only. Calling it again from this driver results in an additional
memory allocation for no good reason.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Cc: Oder Chiou <oder_chiou@realtek.com>
Cc: Shuming Fan <shumingf@realtek.com>
Cc: Jack Yu <jack.yu@realtek.com>
Link: https://lore.kernel.org/r/20200515211531.11416-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Now that the sdw_stream is allocated in machine driver,
set_sdw_stream() is also called with a NULL argument during the
dailink shutdown.
In this case, the drivers should not allocate any memory, and just
return.
Detected with KASAN/kmemleak.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Cc: Oder Chiou <oder_chiou@realtek.com>
Cc: Shuming Fan <shumingf@realtek.com>
Cc: Jack Yu <jack.yu@realtek.com>
Link: https://lore.kernel.org/r/20200515211531.11416-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The SoundWire bus core already assigns the slave ops, no need to set
them a second time manually in each driver.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Cc: Oder Chiou <oder_chiou@realtek.com>
Cc: Shuming Fan <shumingf@realtek.com>
Cc: Jack Yu <jack.yu@realtek.com>
Link: https://lore.kernel.org/r/20200515211531.11416-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
There is a corner case that ALSA keeps increasing the hw_ptr but DMA
already stop working/updating the position for a long time.
In following log we can see the position returned from DMA driver does
not move at all but the hw_ptr got increased at some point of time so
snd_pcm_avail() will return a large number which seems to be a buffer
underrun event from user space program point of view. The program
thinks there is space in the buffer and fill more data.
[ 418.510086] sound pcmC0D5p: pos 96 hw_ptr 96 appl_ptr 4096 avail 12368
[ 418.510149] sound pcmC0D5p: pos 96 hw_ptr 96 appl_ptr 6910 avail 9554
...
[ 418.681052] sound pcmC0D5p: pos 96 hw_ptr 96 appl_ptr 15102 avail 1362
[ 418.681130] sound pcmC0D5p: pos 96 hw_ptr 96 appl_ptr 16464 avail 0
[ 418.726515] sound pcmC0D5p: pos 96 hw_ptr 16464 appl_ptr 16464 avail 16368
This is because the hw_base will be increased by runtime->buffer_size
frames unconditionally if the hw_ptr is not updated for over half of
buffer time. As the hw_base increases, so does the hw_ptr increased
by the same number.
The avail value returned from snd_pcm_avail() could exceed the limit
(buffer_size) easily becase the hw_ptr itself got increased by same
buffer_size samples when the corner case happens. In following log,
the buffer_size is 16368 samples but the avail is 21810 samples so
CRAS server complains about it.
[ 418.851755] sound pcmC0D5p: pos 96 hw_ptr 16464 appl_ptr 27390 avail 5442
[ 418.926491] sound pcmC0D5p: pos 96 hw_ptr 32832 appl_ptr 27390 avail 21810
cras_server[1907]: pcm_avail returned frames larger than buf_size:
sof-glkda7219max: :0,5: 21810 > 16368
By updating runtime->hw_ptr_jiffies each time the HWSYNC is called,
the hw_base will keep the same when buffer stall happens at long as
the interval between each HWSYNC call is shorter than half of buffer
time.
Following is a log captured by a patched kernel. The hw_base/hw_ptr
value is fixed in this corner case and user space program should be
aware of the buffer stall and handle it.
[ 293.525543] sound pcmC0D5p: pos 96 hw_ptr 96 appl_ptr 4096 avail 12368
[ 293.525606] sound pcmC0D5p: pos 96 hw_ptr 96 appl_ptr 6880 avail 9584
[ 293.525975] sound pcmC0D5p: pos 96 hw_ptr 96 appl_ptr 10976 avail 5488
[ 293.611178] sound pcmC0D5p: pos 96 hw_ptr 96 appl_ptr 15072 avail 1392
[ 293.696429] sound pcmC0D5p: pos 96 hw_ptr 96 appl_ptr 16464 avail 0
...
[ 381.139517] sound pcmC0D5p: pos 96 hw_ptr 96 appl_ptr 16464 avail 0
Signed-off-by: Brent Lu <brent.lu@intel.com>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1589776238-23877-1-git-send-email-brent.lu@intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
snd_hdac_bus_queue_event() and snd_hdac_bus_exec_verb() are used only
internally in HD-audio core. Let's drop the exports and move the
declarations into local.h.
Link: https://lore.kernel.org/r/20200516062854.22141-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The unsol event handling code has a loop retrieving the read/write
indices and the arrays without locking while the append to the array
may happen concurrently. This may lead to some inconsistency.
Although there hasn't been any proof of this bad results, it's still
safer to protect the racy accesses.
This patch adds the spinlock protection around the unsol handling loop
for addressing it. Here we take bus->reg_lock as the writer side
snd_hdac_bus_queue_event() is also protected by that lock.
Link: https://lore.kernel.org/r/20200516062556.30951-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
For USB sound devices using implicit feedback the endpoint used for
this feedback should be able to be opened twice, once for required
feedback and second time for audio data. This way these devices can be
put in duplex audio mode. Since this only works if the settings of the
endpoint don't change a check is included for this.
This fixes bug 207023 ("MOTU M2 regression on duplex audio") and
should also fix bug 103751 ("M-Audio Fast Track Ultra usb audio device
will not operate full-duplex")
Fixes: c249177944 ("ALSA: usb-audio: add implicit fb quirk for MOTU M Series")
Signed-off-by: Erwin Burema <e.burema@gmail.com>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=207023
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=103751
Link: https://lore.kernel.org/r/2410739.SCZni40SNb@alpha-wolf
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The things look good and calming down; the only change to ALSA core
is the fix for racy rawmidi buffer accesses spotted by syzkaller,
and the rest are all small device-specific quirks for HD-audio and
USB-audio devices.
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Merge tag 'sound-5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Things look good and calming down; the only change to ALSA core is the
fix for racy rawmidi buffer accesses spotted by syzkaller, and the
rest are all small device-specific quirks for HD-audio and USB-audio
devices"
* tag 'sound-5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek - Limit int mic boost for Thinkpad T530
ALSA: hda/realtek - Add COEF workaround for ASUS ZenBook UX431DA
ALSA: hda/realtek: Enable headset mic of ASUS UX581LV with ALC295
ALSA: hda/realtek - Enable headset mic of ASUS UX550GE with ALC295
ALSA: hda/realtek - Enable headset mic of ASUS GL503VM with ALC295
ALSA: hda/realtek: Add quirk for Samsung Notebook
ALSA: rawmidi: Fix racy buffer resize under concurrent accesses
ALSA: usb-audio: add mapping for ASRock TRX40 Creator
ALSA: hda/realtek - Fix S3 pop noise on Dell Wyse
Revert "ALSA: hda/realtek: Fix pop noise on ALC225"
ALSA: firewire-lib: fix 'function sizeof not defined' error of tracepoints format
ALSA: usb-audio: Add control message quirk delay for Kingston HyperX headset
Add support for imx8qm.
Shengjiu Wang (2):
ASoC: fsl_esai: introduce SoC specific data
ASoC: fsl_esai: Add new compatible string for imx8qm
Changes in v2
- drop the 0002 patch in v1, the dma relate limitation should
be done in dma driver, or define a new DMA API for it.
.../devicetree/bindings/sound/fsl,esai.txt | 1 +
sound/soc/fsl/fsl_esai.c | 46 +++++++++++++++----
2 files changed, 38 insertions(+), 9 deletions(-)
--
2.21.0
The CrOS EC codec driver uses SHA-256 explicitly, and not in a
performance critical manner, so there is really no point in using
the SHASH crypto API here. Let's switch to the library API instead.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
Cc: Cheng-Yi Chiang <cychiang@chromium.org>
Cc: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Cc: Guenter Roeck <groeck@chromium.org>
Cc: Benson Leung <bleung@chromium.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200515100309.20795-1-ardb@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Introduce a SoC specific data structure which contains the
differences between the different SoCs.
This makes it easier to support more differences without having
to introduce a new if/else each time.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/c188279975bd216995904f9bf8a84c7887b759a0.1589537601.git.shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add ALSA controls to configure the PDM clocks.
The clocks need to be configurable to accommodate various microphones
that use clocks for low power/low resolution modes to high power/high
resolution modes.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200514123338.20392-1-dmurphy@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Lenovo Thinkpad T530 seems to have a sensitive internal mic capture
that needs to limit the mic boost like a few other Thinkpad models.
Although we may change the quirk for ALC269_FIXUP_LENOVO_DOCK, this
hits way too many other laptop models, so let's add a new fixup model
that limits the internal mic boost on top of the existing quirk and
apply to only T530.
BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1171293
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200514160533.10337-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The device tree binding declares the ti,mic-bias-source and the
ti,vref-source properties as u32. The code reads them as u8 which is
incorrect. Since the device tree binding indicates them as u32 the
conde needs to be updated to read u32.
In addition the bias source needs to be shifted 4 bits to
correctly write the register.
driver family")
Fixes: 37bde5acf040 ("ASoC: tlv320adcx140: Add the tlv320adcx140 codec
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200513142807.11802-1-dmurphy@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
When CLOCKING2 is non-volatile register, we need force clear
the WM8962_SYSCLK_ENA bit after reset, for the value in cache
maybe 0 but in hardware it is 1. Otherwise there will issue
as below statement in driver.
/* SYSCLK defaults to on; make sure it is off so we can safely
* write to registers if the device is declocked.
Fixes: c38b608504 ("ASoC: wm8962: set CLOCKING2 as non-volatile register")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/1589347835-20554-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The values set by set_dai_fmt() and hw_params() seem to be tailored only
for 32-bit formats. Negotiate the correct ones in hw_params() callback
instead.
This was essentially copied from the OLPC kernel driver and tested to
fix wrong audio output for non-32bit formats. The documentation is not
available.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lore.kernel.org/r/20200511210134.1224532-10-lkundrak@v3.sk
Signed-off-by: Mark Brown <broonie@kernel.org>
Only turn on the Audio island when it's in use.
This requires keeping track of control register contents instead of
reloading them back from hardware, because they're lost when the power is
off.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lore.kernel.org/r/20200511210134.1224532-9-lkundrak@v3.sk
Signed-off-by: Mark Brown <broonie@kernel.org>
The driver enables the clocks without preparing them and disables
without unpreparing afterwards. Fix that.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lore.kernel.org/r/20200511210134.1224532-8-lkundrak@v3.sk
Signed-off-by: Mark Brown <broonie@kernel.org>
The "serial port" it represents is actually a SPI controller -- it's not
clear why would the audio serial interface embed it. We're only using
the mmio_base and clk fields.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lore.kernel.org/r/20200511210134.1224532-7-lkundrak@v3.sk
Signed-off-by: Mark Brown <broonie@kernel.org>
This makes the driver usable with the mmp_tdma drier via
soc-generic-dmaengine-pcm. This is conditionalized on DT node (support
for DT is added by a later patch).
A custom mmap callback that creates a NC mapping is used instead of the
default WC one, because with write-combining some bytes don't seem to
make it through for reasons unknown to me.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lore.kernel.org/r/20200511210134.1224532-6-lkundrak@v3.sk
Signed-off-by: Mark Brown <broonie@kernel.org>
This makes things simpler. There's no reason not to just embed the struct
snd_dmaengine_dai_dma_data in struct sspa_priv and do away with an
unnecessary kmalloc(). While at that, we can initialize the
snd_dmaengine_dai_dma_data structures earlier.
Let's also stop offsetting the source/destination of the DMA transfer by
phys_base. Firstly, it's never set and is always zero. Secondly, the
hardware actually ignores it, at least on a MMP2 and MMP3.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lore.kernel.org/r/20200511210134.1224532-5-lkundrak@v3.sk
Signed-off-by: Mark Brown <broonie@kernel.org>
If an error occurs after the call to 'omap_mcbsp_init()', the reference to
'mcbsp->fclk' must be decremented, as already done in the remove function.
This can be achieved easily by using the devm_ variant of 'clk_get()'
when the reference is taken in 'omap_mcbsp_init()'
This fixes the leak in the probe and has the side effect to simplify both
the error handling path of 'omap_mcbsp_init()' and the remove function.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Peter Ujfalusi <peter.ujflausi@ti.com>
Link: https://lore.kernel.org/r/20200512134325.252073-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
With 'ASoC: Intel: Skylake: Fix HDaudio and Dmic' series applied,
warning is no longer true. Remove it and update the description.
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20200506212114.8502-1-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
There are 2 issues here:
- if one of the 'of_parse_phandle' fails, calling 'mop500_of_node_put()'
is a no-op because the 'mop500_dai_links' structure has not been
initialized yet, so the referenced are not decremented
- The reference stored in 'mop500_dai_links[i].codecs' is refcounted
only once in the probe and must be decremented only once.
Fixes: 39013bd60e ("ASoC: Ux500: Dispose of device nodes correctly")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20200512100705.246349-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20200511174647.GA17318@embeddedor
Signed-off-by: Mark Brown <broonie@kernel.org>
It does nothing, because the corresponding bit s not flipped on in .formats
and the audio SRAM DMA engine is not able to handle 20-bit transfers
anyway.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lore.kernel.org/r/20200511210134.1224532-3-lkundrak@v3.sk
Signed-off-by: Mark Brown <broonie@kernel.org>
In order to fix issue described in:
"ASoC: Intel: sst: ipc command timeout"
https://patchwork.kernel.org/patch/11482829/
use readq function, which is meant to read 64 bit values from registers.
On 32 bit platforms it falls back to two readl calls.
Reported-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Tested-by: Brent Lu <brent.lu@intel.com>
Acked-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20200507133405.32251-2-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Baytrail has 64 bit registers, so we should use *read64* to read from it
and then use proper mask values to check status.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Tested-by: Brent Lu <brent.lu@intel.com>
Acked-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20200507133405.32251-1-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
SSI BUSIF buffer is possible to overflow or underflow, especially in a
hypervisor environment. If there is no interrupt support, it will eventually
lead to errors in pcm data.
This patch adds overflow and underflow interrupt support for SSI BUSIF buffer.
Reported-by: Chen Li <licheng0822@thundersoft.com>
Signed-off-by: Yongbo Zhang <giraffesnn123@gmail.com>
Tested-by: Chen Li <licheng0822@thundersoft.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/20200512093003.28332-1-giraffesnn123@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
ASUS ZenBook UX431DA requires an additional COEF setup when booted
from the recent Windows 10, otherwise it produces the noisy output.
The quirk turns on COEF 0x1b bit 10 that has been cleared supposedly
due to the pop noise reduction.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=207553
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200512073203.14091-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The ASUS UX581LV laptop's audio (1043:19e1) with ALC295 can't detect the
headset microphone until ALC295_FIXUP_ASUS_MIC_NO_PRESENCE quirk
applied.
Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Link: https://lore.kernel.org/r/20200512061525.133985-3-jian-hong@endlessm.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The ASUS laptop UX550GE with ALC295 can't detect the headset microphone
until ALC295_FIXUP_ASUS_MIC_NO_PRESENCE quirk applied.
Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Link: https://lore.kernel.org/r/20200512061525.133985-2-jian-hong@endlessm.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The ASUS laptop GL503VM with ALC295 can't detect the headset microphone.
The headset microphone does not work until pin 0x19 is enabled for it.
Signed-off-by: Chris Chiu <chiu@endlessm.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Link: https://lore.kernel.org/r/20200512061525.133985-1-jian-hong@endlessm.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Fix to return negative error code -ENOMEM from the IPC init error
handling case instead of 0, as done elsewhere in this function.
Fixes: c16211d622 ("ASoC: SOF: Add Sound Open Firmware driver core")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200509093337.78897-1-weiyongjun1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This is trivial commit but fulfill missing entries in Kconfig for devices
supported by ALSA firewire-motu driver.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200511022540.161363-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Fireface UFX was shipped by RME GmbH in 2010, and now discontinued.
Although this model has some enhanced feature which Fireface 802
doesn't have (e.g. on-board USB mass storage device class, configuration
interface with color display), the functionality relevant to
packet communication on IEEE 1394 bus seems to be the same as
Fireface 802 (e.g. available number of channels for PCM frame in
each sampling transfer frequency).
With the assumption, this commit adds support for Fireface UFX. In ALSA
fireface driver, these two models are handled as the same one.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200510074301.116224-7-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Fireface 802 was shipped by RME GmbH in 2014. This model supports later
protocol for management of isochronous communication and synchronization
of sampling transmission frequency.
This model consists of below ICs:
* TI TSB41AB2
* Xilinx Spartan-6 FPGA XC6SLX16
* TI TMS320 C6747
* SMSC USB3250
Especially, this model just supports IEEE 1394a, against its name which
evokes Fireface 800.
This commit adds support for Fireface 802 (tested). Userspace applications
can transfer PCM frames and MIDI messages via ALSA PCM/Rawmidi interface.
I note that 4 channels for ADAt1 and ADAT2 are disabled at higher sampling
transfer frequency since isochronous resources reservation fails due to
bandwidth limitation of IEEE 1394a.
The value read from LATTER_SYNC_STATUS register is slightly different
from the one of Fireface UCX. The higher 4 bits and lower 4 bits are
swapped within the same byte.
Without any assist of userspace application, transmitted MIDI messages
from the device are not going to be processed. For detail, please refer
to my comment in code of latter protocol.
$ python crpp < /sys/bus/firewire/devices/fw1/config_rom
ROM header and bus information block
-----------------------------------------------------------------
400 0404ffff bus_info_length 4, crc_length 4, crc 65535 (should be 26805)
404 31333934 bus_name "1394"
408 20008000 irmc 0, cmc 0, isc 1, bmc 0, cyc_clk_acc 0, max_rec 8 (512)
40c 000a3504 company_id 000a35 |
410 38077423 device_id 0438077423 | EUI-64 000a350438077423
root directory
-----------------------------------------------------------------
414 0005ffff directory_length 5, crc 65535 (should be 9514)
418 0c0083c0 node capabilities per IEEE 1394
41c 03000a35 vendor
420 8100000b --> descriptor leaf at 44c
424 8d000007 --> eui-64 leaf at 440
428 d1000001 --> unit directory at 42c
unit directory at 42c
-----------------------------------------------------------------
42c 0004ffff directory_length 4, crc 65535 (should be 45134)
430 12000a35 specifier id
434 13000005 version
438 17101800 model
43c 81000008 --> descriptor leaf at 45c
eui-64 leaf at 440
-----------------------------------------------------------------
440 0002ffff leaf_length 2, crc 65535 (should be 60131)
444 000a3504 company_id 000a35 |
448 38077423 device_id 0438077423 | EUI-64 000a350438077423
descriptor leaf at 44c
-----------------------------------------------------------------
44c 0003ffff leaf_length 3, crc 65535 (should be 469)
450 00000000 textual descriptor
454 00000000 minimal ASCII
458 524d4521 "RME!"
descriptor leaf at 45c
-----------------------------------------------------------------
45c 0005ffff leaf_length 5, crc 65535 (should be 10561)
460 00000000 textual descriptor
464 00000000 minimal ASCII
468 46697265 "Fire"
46c 66616365 "face"
470 20383032 " 802"
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200510074301.116224-6-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
In RME fireface series, version field of unit directory in configuration
ROM is used to distinguish each model. The value of field is known and
it's better to use enumeration constants for code representation.
This commit adds enumeration constants for model identification.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200510074301.116224-4-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
In the latter models of RME Fireface series, device start to transfer
packets several dozens of milliseconds. On the other hand, ALSA fireface
driver starts IR context 2 milliseconds after the start. This results
in loss to handle incoming packets on the context.
This commit changes to start IR context immediately instead of
postponement. For Fireface 800, this affects nothing because the device
transfer packets 100 milliseconds or so after the start and this is
within wait timeout.
Cc: <stable@vger.kernel.org>
Fixes: acfedcbe1c ("ALSA: firewire-lib: postpone to start IR context")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200510074301.116224-3-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
128000 and 192000 are congruence modulo 32000, thus it's wrong to
distinguish them as multiple of 32000 and 48000 by modulo 32000 at
first.
Additionally, used condition statement to detect quadruple speed can
cause missing bit flag.
Furthermore, counter to ensure the configuration is wrong and it
causes false positive.
This commit fixes the above three bugs.
Cc: <stable@vger.kernel.org>
Fixes: 60aec494b3 ("ALSA: fireface: support allocate_resources operation in latter protocol")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200510074301.116224-2-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The wov_hotword_model_put() function has multiple large variables on
its stack, the largest of which is the result of SHASH_DESC_ON_STACK().
In total, this exceeds the warning limit for 32-bit architectures:
sound/soc/codecs/cros_ec_codec.c:776:12: error: stack frame size of 1152 bytes in function 'wov_hotword_model_put' [-Werror,-Wframe-larger-than=]
The function already has a dynamic crypto_alloc_shash() allocation, so
using kmalloc() for the descriptor is correct as well and does not
introduce any additional failure scenarios. With this, the stack usage
of wov_hotword_model_put() gets reduced to 480 bytes in my test
configuration.
Fixes: b6bc07d436 ("ASoC: cros_ec_codec: support WoV")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200507213405.1869430-1-arnd@arndb.de
Signed-off-by: Mark Brown <broonie@kernel.org>
When CONFIG_SND_SOC_SOF_BAYTRAIL is not set, gcc warns:
sound/soc/sof/intel/byt.c:85:41: warning: ‘cht_debugfs’ defined but not used [-Wunused-const-variable=]
static const struct snd_sof_debugfs_map cht_debugfs[] = {
^~~~~~~~~~~
Move the variable inside #ifdef
Reported-by: Hulk Robot <hulkci@huawei.com>
Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20200507072735.16588-1-yuehaibing@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
In previous commit, the sequence of syt offset and the number of data
blocks per packet is calculated for pool in AMDTP domain structure in
advance of processing outgoing packets.
This commit uses the sequence for outgoing packet processing to obsolete
per-stream processing of the sequence.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200508043635.349339-11-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
In current implementation, sequence of syt offset and the number of data
blocks is generated when packets for outgoing stream are going to be
queued.
This commit generates and pools the sequence independently of the
processing of outgoing packets for future extension.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200508043635.349339-10-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
For future extension, storage is required to store packet sequence in
incoming AMDTP stream to recover media clock for outgoing AMDTP stream.
This commit adds the storage to AMDTP domain for this purpose. The
packet sequence is represented by 'struct seq_desc' which has two
members; syt_offset and the number of data blocks. The size of storage
is decided according to the size of packet queue.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200508043635.349339-9-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When calculating the number of data blocks per packet, some states are
stored in AMDTP stream structure. This is inconvenient when reuse the
calculation from non-stream structure.
This commit applies refactoring to helper function for the calculation
so that the function doesn't touch AMDTP stream structure.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200508043635.349339-8-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When calculating syt offset, some states are stored in AMDTP stream
structure. This is inconvenient when reuse the calculation from
non-stream structure.
This commit applies refactoring to helper function for the calculation
so that the function doesn't touch AMDTP stream structure.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200508043635.349339-7-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
In current implementation for outgoing AMDTP packet, the value of syt
field in CIP header is computed when calculating syt offset. For
future extension, it's convenient to split the computation and
calculation.
This commit splits them.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200508043635.349339-6-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Although the parameter for packet queue and IRQ timing is calculated when
AMDTP stream starts, the calculated parameters are the same between
streams in AMDTP domain.
This commit moves the calculation and decide the parameters when AMDTP
domain starts.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200508043635.349339-5-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
In current implementation, AMDTP domain structure and AMDTP stream
structure has one way of reference from the former to the latter. For
future extension, bidirectional reference is needed.
This commit adds a member into stream structure to refer to domain
structure to which the stream belongs.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200508043635.349339-4-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
In descriptor of isochronous context in 1394 OHCI, the field of second
has 3 bit, thus the maximum value is 8. The value is used for correct
cycle calculation.
This commit replaces hard-coded value with macro to obsolete magic
number.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200508043635.349339-3-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Although the value of FDF is used just for outgoing stream, the assignment
to union member is done for both directions of stream. At present this
causes no issue because the value of same position is reassigned later for
opposite stream. However, it's better to add if statement.
Fixes: d3d10a4a1b ("ALSA: firewire-lib: use union for directional parameters")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200508043635.349339-2-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200507185245.GA14270@embeddedor
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200507192223.GA16335@embeddedor
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The rawmidi core allows user to resize the runtime buffer via ioctl,
and this may lead to UAF when performed during concurrent reads or
writes: the read/write functions unlock the runtime lock temporarily
during copying form/to user-space, and that's the race window.
This patch fixes the hole by introducing a reference counter for the
runtime buffer read/write access and returns -EBUSY error when the
resize is performed concurrently against read/write.
Note that the ref count field is a simple integer instead of
refcount_t here, since the all contexts accessing the buffer is
basically protected with a spinlock, hence we need no expensive atomic
ops. Also, note that this busy check is needed only against read /
write functions, and not in receive/transmit callbacks; the race can
happen only at the spinlock hole mentioned in the above, while the
whole function is protected for receive / transmit callbacks.
Reported-by: butt3rflyh4ck <butterflyhuangxx@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/CAFcO6XMWpUVK_yzzCpp8_XP7+=oUpQvuBeCbMffEDkpe8jWrfg@mail.gmail.com
Link: https://lore.kernel.org/r/s5heerw3r5z.wl-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Fix the following warning:
sound/soc/fsl/fsl_asrc.c:157:5: warning:
symbol 'fsl_asrc_request_pair' was not declared. Should it be static?
sound/soc/fsl/fsl_asrc.c:200:6: warning:
symbol 'fsl_asrc_release_pair' was not declared. Should it be static?
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: ChenTao <chentao107@huawei.com>
Link: https://lore.kernel.org/r/20200507022959.183739-1-chentao107@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Update intel-dspcfg with FLAG_SST_ONLY_IF_DMIC option and use it for
Skylake and Kabylake platforms when DMIC is present.
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200506203951.6369-1-cezary.rojewski@intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Fix the following coccinelle warning:
sound/drivers/portman2x4.c:460:34-35: WARNING: sum of probable bitmasks, consider |
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Samuel Zou <zou_wei@huawei.com>
Link: https://lore.kernel.org/r/1588834135-14842-1-git-send-email-zou_wei@huawei.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Fix the following coccinelle warnings:
sound/ppc/pmac.c:729:57-58: WARNING: sum of probable bitmasks, consider |
sound/ppc/pmac.c:229:37-38: WARNING: sum of probable bitmasks, consider |
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Samuel Zou <zou_wei@huawei.com>
Link: https://lore.kernel.org/r/1588823647-12480-1-git-send-email-zou_wei@huawei.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
If the function platform_get_irq() failed, the negative value
returned will not be detected here. So fix error handling in
mt6797_afe_pcm_dev_probe(). And when get irq failed, the function
platform_get_irq() logs an error message, so remove redundant
message here.
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Link: https://lore.kernel.org/r/20200506143009.13368-1-tangbin@cmss.chinamobile.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Simultaneous capture on dmic and headset mic is having
issue with high hw_level being reported.
Issue Can be reproduced by:
arecord -D hw:2,0 -f dat -d 60 /tmp/test0 &
arecord -D hw:2,2 -f dat -d 60 /tmp/test1 &
cat /proc/asound/card2/pcm?c/sub0/status
Actual issue is :
When we open one capture stream on one instance lets say I2S_SP and then
once again if we open other capture on other instance lets say I2S_BT while
first capture is in progress and when we try to read the status of both
running instances by below command cat /proc/asound/card2/pcm?c/sub0/status
we observe that avail_max is being doubled on first opened
capture(I2S_SP in the example).
This is because our previous implementation was like when any instance is
opened it gets initialized in dma_open irrespective of on what instance it
called open.
For example:
First I2S_SP called opened it initializes both SP/BT capture streams
irrespective of on which instance the stream opened.next time I2S_BT
called opened and it initializes both SP/BT this corrupts the behaviour .
So with this patch the stream gets initialized only on specific instance
when ever it gets opened calls hw_params.
This rectifies the issue.
Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com>
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Link: https://lore.kernel.org/r/20200506102602.140790-1-akshu.agrawal@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The LPASS hardware allows configuring the MI2S SD lines to use
when playing/recording audio. However, at the moment the lpass-cpu
driver has SD0 hard-coded for mono/stereo (or additional fixed
SD lines for more channels).
For weird reasons there seems to be hardware that uses one of the
other SD lines for mono/stereo. For example, some Samsung devices
use an external Speaker amplifier connected to Quaternary MI2S.
For some reason, the SD line for audio playback was connected to
SD1 rather than SD0. (I have no idea why...)
At the moment, the lpass-cpu driver cannot be configured to work
for the Speaker on these devices.
The q6afe driver already allows configuring the MI2S SD lines
through the "qcom,sd-lines" device tree property, but this works
only when routing audio through the ADSP.
This commit adds a very similar configuration for the lpass-cpu driver.
It is now possible to add additional subnodes to the lpass device in
the device tree, to configure the SD lines for playback and/or capture.
E.g. for the Samsung devices mentioned above:
&lpass {
dai@3 {
reg = <MI2S_QUATERNARY>;
qcom,playback-sd-lines = <1>;
};
};
qcom,playback/capture-sd-lines takes a list of SD lines (0-3)
in the same format as the q6afe driver. (The difference here is that
q6afe has separate DAIs for playback/capture, while lpass-cpu has one
for both...)
For backwards compatibility with older device trees, the lpass-cpu driver
defaults to LPAIF_I2SCTL_MODE_8CH if the subnode for a DAI is missing.
This is equivalent to the previous behavior: Up to 8 channels can be
configured, and SD0/QUAT01 will be chosen when setting up a stream
with fewer channels.
This allows the speaker to work on Samsung MSM8916 devices
that use an external speaker amplifier.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200425184657.121991-2-stephan@gerhold.net
Signed-off-by: Mark Brown <broonie@kernel.org>
During S3 test, the following error was observed:
[ 726.174237] i2c_designware i2c_designware.0: platform_pm_resume+0x0/0x3d returned 0 after 0 usecs
[ 726.184187] max98373 i2c-MX98373:00: calling max98373_resume+0x0/0x30 [snd_soc_max98373] @ 12698, parent: i2c-11
[ 726.195589] max98373 i2c-MX98373:00: Reset command failed. (ret:-16)
When calling regmap_update_bits(), since map->reg_update_bits is NULL,
_regmap_read() is entered with the following logic:
if (!map->cache_bypass) {
ret = regcache_read(map, reg, val);
if (ret == 0)
return 0;
}
if (map->cache_only)
return -EBUSY;
regcache_read() hits -EINVAL because MAX98373_R2000_SW_RESET is volatile,
as map->cache_only is set by codec suspend, thus -EBUSY is returned.
Fix by moving max98373_reset() after cache_only set to false in max98373_resume().
Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Link: https://lore.kernel.org/r/1588376661-29799-1-git-send-email-yong.zhi@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Tegra194 has 4 SDO lines and with this configuration playback fails
for 44.1K/48K, 2-channel and 16-bps. It results in below print,
"aplay: pcm_write:2011: write error: Input/output error"
Below relation is used to derive stripe control and is referenced
from HD Audio Specification: Revision 1.0a.
{ ((num_channels * bits_per_sample) / number of SDOs) >= 8 }
Due to a legacy HW design problem, playback issue is hit while using
a stripe value resulting from above formula when ratio is '8'. Thus
it is recommended that the ratio must be greater than '8'. Since the
number of SDO lines is in powers of 2, next available ratio '16' is
used as a limiting factor on Tegra194 to workaround the problem.
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1588580176-2801-4-git-send-email-spujar@nvidia.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Stripe control programming is governed by following formula, which is
referenced from the HD Audio specification(Revision 1.0a).
{ ((num_channels * bits_per_sample) / number of SDOs) >= 8 }
Currently above is implemented in snd_hdac_get_stream_stripe_ctl().
This patch introduces a structure member to store the default factor
of '8'. If any HW wants to use a different value, this member can be
easily updated.
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1588580176-2801-3-git-send-email-spujar@nvidia.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Tegra194 supports 4 SDO lines but GCAP register indicates 2 lines. Thus it
does not reflect the true capability of the HW. This patch presents a
workaround by updating NSDO value accordingly in T_AZA_DBG_CFG_2 register.
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1588580176-2801-2-git-send-email-spujar@nvidia.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This is another TRX40 based motherboard with ALC1220-VB USB-audio
that requires a static mapping table.
This motherboard also has a PCI device which advertises no codecs. The
PCI ID is 1022:1487 and PCI SSID is 1022:d102. As this is using the AMD
vendor ID, don't blacklist for now in case other boards have a working
audio device with the same ssid.
alsa-info.sh report for this board:
http://alsa-project.org/db/?f=0a742f89066527497b77ce16bca486daccf8a70c
Signed-off-by: Andrew Oakley <andrew@adoakley.name>
Link: https://lore.kernel.org/r/20200503141639.35519-1-andrew@adoakley.name
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Commit 317d931392 ("ALSA: hda/realtek - Set default power save node to
0") makes the ALC225 have pop noise on S3 resume and cold boot.
The previous fix enable power save node universally for ALC225, however
it makes some ALC225 systems unable to produce any sound.
So let's only enable power save node for the affected Dell Wyse
platform.
Fixes: 317d931392 ("ALSA: hda/realtek - Set default power save node to 0")
BugLink: https://bugs.launchpad.net/bugs/1866357
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20200503152449.22761-2-kai.heng.feng@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The snd-firewire-lib.ko has 'amdtp-packet' event of tracepoints. Current
printk format for the event includes 'sizeof(u8)' macro expected to be
extended in compilation time. However, this is not done. As a result,
perf tools cannot parse the event for printing:
$ mount -l -t debugfs
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
$ cat /sys/kernel/debug/tracing/events/snd_firewire_lib/amdtp_packet/format
...
print fmt: "%02u %04u %04x %04x %02d %03u %02u %03u %02u %01u %02u %s",
REC->second, REC->cycle, REC->src, REC->dest, REC->channel,
REC->payload_quadlets, REC->data_blocks, REC->data_block_counter,
REC->packet_index, REC->irq, REC->index,
__print_array(__get_dynamic_array(cip_header),
__get_dynamic_array_len(cip_header),
sizeof(u8))
$ sudo perf record -e snd_firewire_lib:amdtp_packet
[snd_firewire_lib:amdtp_packet] function sizeof not defined
Error: expected type 5 but read 0
This commit fixes it by obsoleting the macro with actual size.
Cc: <stable@vger.kernel.org>
Fixes: bde2bbdb30 ("ALSA: firewire-lib: use dynamic array for CIP header of tracing events")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200503045718.86337-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
At least POD HD500 uses message-based communication, both sides can
send messages. Add poll callback so application can wait for device
messages without using busy loop.
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Link: https://lore.kernel.org/r/20200502193120.79115-3-anarsoul@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Currently line6 hwdep interface ignores O_NONBLOCK flag when
opening device and it renders it somewhat useless when using poll.
Check for O_NONBLOCK flag when opening device and don't block read()
if it is set.
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Link: https://lore.kernel.org/r/20200502193120.79115-2-anarsoul@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Karol Trzcinski