platform_get_resource_byname(pdev, IORESOURCE_IRQ, ..) relies on static
allocation of IRQ resources in DT core code, this causes an issue
when using hierarchical interrupt domains using "interrupts" property
in the node as this bypasses the hierarchical setup and messes up the
irq chaining.

In preparation for removal of static setup of IRQ resource from DT core
code use platform_get_irq_byname().
Signed-off-by: Meng Tang <tangmeng@uniontech.com>
Link: https://lore.kernel.org/r/20220225112358.19403-1-tangmeng@uniontech.comSigned-off-by: Mark Brown <broonie@kernel.org>

Merge series from Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>:

This patch set is to add support for Audio over wcd codec,
digital mics, through digital codecs and without ADSP.

Changes Since V15:
    -- Bisect patches to avoid build failure in other architectures.
    -- Remove redundant variables lpass variant structure.
Changes Since V14:
    -- Split common wrapper function to separate wrapper for each handle in platform driver.
    -- Update cdc dma buffer handling with memremap with ioremap.
    -- Remove redundant error prints.
    -- Update irq flag.
Changes Since V13:
    -- Change bulk cdc clock voting to individual clock voting.
    -- Remove redundant code, conditional check and prints.
    -- Fix typo errors.
Changes Since V12:
    -- Fix arguments type mismatch.
Changes Since V11:
    -- Fix kernel robot issue on arguments type mismatch.
Changes Since V10:
    -- Split bulk clock voting to individual clock voting as per use case in cdc-dma driver.
    -- Add missing codec dma clocks.
    -- Update rxtx lpm buffer size.
Changes Since V9:
    -- Change individual clock voting to bulk clock voting of lpass-sc7280 platform driver.
    -- Remove redundant clocks in lpass variant structure.
    -- Add mclk for MI2S based headset path.
    -- Remove unused lpass variant structure members in lpass header.
Changes Since V8:
    -- Fix errors in sc7280 lpass cpu dt-bindings.
    -- Move to quicinc domain email id's.
Changes Since V7:
    -- Fix indentation errors.
    -- Bisect patches to avoid interdependency.
Changes Since V6:
    -- Split cdc dma regmap config macros.
    -- Add write dma reg fields for i2s path.
    -- Add helper function to distinguish rxtx and va dma ports.
    -- Optimizing clock and reg name in cpu dt-bindings.
    -- Update buffer management for cdc dma path.
    -- Remove Kconfig fields of machine driver.
Changes Since V5:
    -- Include MI2S primary node to snd_soc_dai_driver in lpass-sc7280 platform driver.
    -- Move dependency patch list to corresponding patch.
    -- Add support for missing cdc-dma ports.
    -- Change if/else conditional statements to switch cases.
    -- Add missing error handlings.
    -- Typo errors fix.
Changes Since V4:
    -- Remove unused variable in lpass-sc7280 platform driver.
Changes Since V3:
    -- Remove redundant power domain controls. As power domains can be configured from dtsi.
Changes Since V2:
    -- Split lpass sc7280 cpu driver patch and create regmap config patch.
    -- Create patches based on latest kernel tip.
    -- Add helper function to get dma control and lpaif handle.
    -- Remove unused variables.
Changes Since V1:
    -- Typo errors fix
    -- CPU driver readable/writable apis optimization.
    -- Add Missing config patch
    -- Add Common api for repeated dmactl initialization.
Srinivasa Rao Mandadapu (9):
  ASoC: qcom: Move lpass_pcm_data structure to lpass header
  ASoC: qcom: lpass: Add dma fields for codec dma lpass interface
  ASoC: qcom: Add helper function to get dma control and lpaif handle
  ASoC: qcom: Add register definition for codec rddma and wrdma
  ASoC: qcom: Add regmap config support for codec dma driver
  ASoC: qcom: Add support for codec dma driver
  ASoC: qcom: Add lpass CPU driver for codec dma control
  ASoC: dt-bindings: Add SC7280 lpass cpu bindings
  ASoC: qcom: lpass-sc7280: Add platform driver for lpass audio

 .../devicetree/bindings/sound/qcom,lpass-cpu.yaml  |  75 ++-
 sound/soc/qcom/Kconfig                             |  11 +
 sound/soc/qcom/Makefile                            |   4 +
 sound/soc/qcom/lpass-cdc-dma.c                     | 301 ++++++++++
 sound/soc/qcom/lpass-cpu.c                         | 253 ++++++++-
 sound/soc/qcom/lpass-lpaif-reg.h                   | 127 ++++-
 sound/soc/qcom/lpass-platform.c                    | 628 ++++++++++++++++++---
 sound/soc/qcom/lpass-sc7280.c                      | 438 ++++++++++++++
 sound/soc/qcom/lpass.h                             | 141 +++++
 9 files changed, 1890 insertions(+), 88 deletions(-)
 create mode 100644 sound/soc/qcom/lpass-cdc-dma.c
 create mode 100644 sound/soc/qcom/lpass-sc7280.c

--
2.7.4

Fix the following sparse error:
sound/soc/sof/compress.c:310:25: error: symbol 'sof_compressed_ops' was not declared. Should it be static?

Do not enable set the pd->compress_ops yet as it is not a valid assumption
that real compress support really works when CONFIG_SND_SOC_SOF_COMPRESS
is set as the HDA Probes support also selects it, but compressed audio
is not supported (yet) on Intel platforms.

Fixes: 6324cf90 ("ASoC: SOF: compr: Add compress ops implementation")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20220224172324.17976-1-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

Add platform driver for configuring sc7280 lpass core I2S and
DMA configuration to support playback & capture to external codecs
connected over secondary MI2S interface and soundwire interface.
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/1645716828-15305-10-git-send-email-quic_srivasam@quicinc.comSigned-off-by: Mark Brown <broonie@kernel.org>

Add bindings for sc7280 lpass cpu driver which supports
audio over i2s based speaker, soundwire based headset, msm dmics
and HDMI Port.
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1645716828-15305-9-git-send-email-quic_srivasam@quicinc.comSigned-off-by: Mark Brown <broonie@kernel.org>

Add lpass cpu driver to support audio over codec dma for
ADSP bypass usecase.
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/1645716828-15305-8-git-send-email-quic_srivasam@quicinc.comSigned-off-by: Mark Brown <broonie@kernel.org>

Upadate lpass cpu and platform driver to support audio over codec dma
in ADSP bypass use case.
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/1645716828-15305-7-git-send-email-quic_srivasam@quicinc.comSigned-off-by: Mark Brown <broonie@kernel.org>

Update regmap configuration for supporting headset playback and
capture and DMIC capture using codec dma interface
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/1645716828-15305-6-git-send-email-quic_srivasam@quicinc.comSigned-off-by: Mark Brown <broonie@kernel.org>

Add register definitions for codec read dma and write dma
lpass interface.
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/1645716828-15305-5-git-send-email-quic_srivasam@quicinc.comSigned-off-by: Mark Brown <broonie@kernel.org>

Add support function to get dma control and lpaif handle to avoid
repeated code in platform driver
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/1645716828-15305-4-git-send-email-quic_srivasam@quicinc.comSigned-off-by: Mark Brown <broonie@kernel.org>

Add lpass interface memebers to support audio path over codec dma.
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/1645716828-15305-3-git-send-email-quic_srivasam@quicinc.comSigned-off-by: Mark Brown <broonie@kernel.org>

Declare lpass_pcm_data structure in lpass header file instead of
platform source file to make common use of it by other drivers
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/1645716828-15305-2-git-send-email-quic_srivasam@quicinc.comSigned-off-by: Mark Brown <broonie@kernel.org>

Add dmic ops and startup callback to add snd_pcm_hw_constraint for
pdm related device node.
Signed-off-by: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
Link: https://lore.kernel.org/r/20220222124213.721224-4-AjitKumar.Pandey@amd.comSigned-off-by: Mark Brown <broonie@kernel.org>

We have newer renoir platforms with different codecs combinations.
Add struct in legacy machine driver and add to list of supported
renoir machine to support sound card registration on platform with
rt5682s as primary headset codec and max98360 and rt1019 as speaker
amp codec.

This also fixes error reported by kernel robot:
"error: 'EN_SPKR_GPIO_DW' undeclared here"
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
Link: https://lore.kernel.org/r/20220222124213.721224-3-AjitKumar.Pandey@amd.comSigned-off-by: Mark Brown <broonie@kernel.org>

Change sound card name for guybrush machine with rt5682 as primary
codec and rt1019 amp to align with names given in UCM config.
Signed-off-by: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
Link: https://lore.kernel.org/r/20220222124213.721224-2-AjitKumar.Pandey@amd.comSigned-off-by: Mark Brown <broonie@kernel.org>

Now that sof_compressed_ops initial implementation was merged
we can enable it in SOF platform component driver.

This partially reverts commit
8a720724 ("ASoC: SOF: pcm: Remove non existent CONFIG_SND_SOC_SOF_COMPRESS reference")
Reported-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20220223153849.84471-1-daniel.baluta@oss.nxp.comSigned-off-by: Mark Brown <broonie@kernel.org>

The sc7280 driver really does depend on SOUNDWIRE since it calls various
sdw_ functions (eg, sdw_enable_stream(), sdw_prepare_stream()) which do
not have stubs when that is disabled so we can't build with COMPILE_TEST.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220223011913.2753938-1-broonie@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>

Normally, the clock source of audio module is either 26M or APLL1/APLL2,
but APLL1/APLL2 are not the multiple of 26M.

In the patch, APLL1 and APLL2 tuners are enabled to handle sample rate
mismatch when the data path crosses two different clock domains.
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Link: https://lore.kernel.org/r/20220221055716.18580-1-trevor.wu@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

The Felwinter uses four max98360a amplifiers on corresponding CH0~CH3.
There are four amps on the board connecting to headphone to SSP0 port,
amp to SSP1,and the DAI format would be DSP_A,8-slots, 32 bit slot-width.

CH0: L(Woofer), CH1:R(Woofer), CH2:L(Tweeter), CH3:R(Tweeter)
Signed-off-by: Ajye Huang <ajye_huang@compal.corp-partner.google.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Curtis Malainey <cujomalainey@chromium.org>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220218082741.1707209-1-brent.lu@intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

Huawei D15 uses SSP_CODEC(0).
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/d560a1c76edb633c37acf04a9a82518b6233a719.1640351150.git.mchehab@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>

There is a regular need in the kernel to provide a way to declare having
a dynamically sized set of trailing elements in a structure. Kernel code
should always use "flexible array members"[1] for these cases. The older
style of one-element or zero-length arrays should no longer be used[2].

This helps with the ongoing efforts to globally enable -Warray-bounds
and get us closer to being able to tighten the FORTIFY_SOURCE routines
on memcpy().

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays

Link: https://github.com/KSPP/linux/issues/78
Link: https://github.com/KSPP/linux/issues/180Suggested-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Stephen Kitt <steve@sk2.org>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20220217132755.1786130-1-steve@sk2.orgSigned-off-by: Mark Brown <broonie@kernel.org>

On a platform shutdown, the expectation for most drivers is that
userspace tasks will release all resources. When those sequences do
not complete, it can be the case that PCM devices exposed by ALSA
cards are used *after* the DSP shutdown completes, leading to a
platform hang.

When the clients and machine drivers provide an _unregister callback,
let's invoke it in the shutdown sequence.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20220216133241.3990281-1-kai.vehmanen@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

Convert gpio api's to gpio descriptor api's in CTIA/OMTP switch control.
Remove redundant NULL checks in swap_gnd_mic function.

Fixes: 013cc2ae ("ASoC: codec: wcd938x: Add switch control for selecting CTIA/OMTP Headset")
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Link: https://lore.kernel.org/r/1645017892-12522-1-git-send-email-quic_srivasam@quicinc.comSigned-off-by: Mark Brown <broonie@kernel.org>

In the case like dmaengine which's not a dai but as a component, the
num_dai is zero, dmaengine component has the same component_of_node
as cpu dai, when cpu dai component is not ready, but dmaengine component
is ready, try to get cpu dai name, the snd_soc_get_dai_name() return
-EINVAL, not -EPROBE_DEFER, that cause below error:

asoc-simple-card <card name>: parse error -22
asoc-simple-card: probe of <card name> failed with error -22

The sound card failed to probe.

So this patch fixes the issue above by skipping the zero num_dai
component in searching dai name.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1644491952-7457-1-git-send-email-shengjiu.wang@nxp.comSigned-off-by: Mark Brown <broonie@kernel.org>

Don't populate the read-only const array rates on the stack but
instead it static. Also makes the object code a little smaller.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220214213223.65780-1-colin.i.king@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>

Intel's kernel test robot found the following randconfig combination:
SND_SOC_SOF=y
SND_SOC_SOF_CLIENT=m

In this the sof-client object is not going to be built into the snd-sof.o
and we will have undefined references to the sof-client functions.

Fixes: 6955d951 ("ASoC: SOF: Introduce IPC SOF client support")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Peter Ujfalusi &lt;Peter Ujfalusi <peter.ujfalusi@linux.intel.com&gt;>
Link: https://lore.kernel.org/r/20220214071330.22151-1-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

Merge series from Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>:

This patch set is to add switch control for selecting CTIA/OMTP Headset

Merge series from Nikita Yushchenko <nikita.yoush@cogentembedded.com>:

These patches clean up pcm3168a driver, without introducing any
functional change.

Add gpio property used for selecting CTIA/OMTP headset connected
to wcd codec.
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Link: https://lore.kernel.org/r/1644668672-29790-3-git-send-email-quic_srivasam@quicinc.comSigned-off-by: Mark Brown <broonie@kernel.org>

Add switch control for selecting CTIA or OMTP Headset by swapping
gnd and mic with the help of GPIO.
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Link: https://lore.kernel.org/r/1644668672-29790-2-git-send-email-quic_srivasam@quicinc.comSigned-off-by: Mark Brown <broonie@kernel.org>

On BIAS STANDBY->OFF transition the current implementation sleeps
600ms on suspend in order to discharge the chip. The suspend is
propagated from "snd_soc_suspend" call for all audio cards in a
serial fashion, thus in case of boards like i.MX8DXL EVK which has
3 distinct WM8960 codecs the total cumulated sleep on suspend is 1.8
seconds.

On the other hand the BIAS OFF->STANDBY transition happens
asynchronously with regard to "snd_soc_resume" - the call is
propagated from "soc_resume_deferred" which is just scheduled
from "snd_soc_resume", each card having its own work scheduled to
execute "soc_resume_deferred" call.

The patch performs discharge completion on BIAS OFF->STANDBY transition
so that the cumulated effect on suspend described above is avoided
and discharge is completed in paralel in case of multiple WM8960
codecs on the board.
Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
Link: https://lore.kernel.org/r/20220208121727.4461-1-viorel.suman@oss.nxp.comSigned-off-by: Mark Brown <broonie@kernel.org>

The I2C remove function is empty for the wm8731 driver, it can just be
deleted.
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220211165811.1176005-1-broonie@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>

Just use ARRAY_SIZE() instead.
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Link: https://lore.kernel.org/r/20220208084220.1289836-5-nikita.yoush@cogentembedded.comSigned-off-by: Mark Brown <broonie@kernel.org>

- drop incomplete (not tdm-aware) calculation/setting of hardware
  fmt value from pcm3168a_set_dai_fmt(); instead, store original
  SND_SOC_DAIFMT* setting in io_params

- in pcm3168a_hw_params(), do all checks in terms of SND_SOC_DAIFMT*,
  and convert that to register bitfield values only to write to
  hardware
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Link: https://lore.kernel.org/r/20220208084220.1289836-4-nikita.yoush@cogentembedded.comSigned-off-by: Mark Brown <broonie@kernel.org>

- group together code lines that calculate value for msad/msda field

- rename variables to better match their meaning:
    val -> ms,
    max_ratio -> num_scki_ratios

- update variable types to match exactly parameters or return types
  of the calls where those variables are used

- write two fields of the same register in a single regmap call
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Link: https://lore.kernel.org/r/20220208084220.1289836-3-nikita.yoush@cogentembedded.comSigned-off-by: Mark Brown <broonie@kernel.org>

When checking if the requested parameters are supported, the driver uses
PCM3168A_FMT_DSP_MASK to check for PCM3168A_FMT_DSP_* values.

However, formally not only PCM3168A_FMT_DSP_* values match that
condition, PCM3168A_FMT_I2S_TDM and PCM3168A_FMT_LEFT_J_TDM also do.

The check still gives correct result because those extra values can't
be in 'fmt' at the check location. Still, to make the code less cryptic,
better to compare 'fmt' with PCM3168A_FMT_DSP_* values explicitly.
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Link: https://lore.kernel.org/r/20220208084220.1289836-2-nikita.yoush@cogentembedded.comSigned-off-by: Mark Brown <broonie@kernel.org>

Functions won't be directly used outside of compress.c file
so mark them as static.

This will also fix warnings reported by kernel test robot:

>> sound/soc/sof/compress.c:91:5: warning: no previous prototype for
function 'sof_compr_open' [-Wmissing-prototypes]
   int sof_compr_open(struct snd_soc_component *component,
       ^
   sound/soc/sof/compress.c:91:1: note: declare 'static' if the function
is not intended to be used outside of this translation unit
   int sof_compr_open(struct snd_soc_component *component,

Fixes: 6324cf90 ("SoC: SOF: compr: Add compress ops implementation")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20220211082631.179735-1-daniel.baluta@oss.nxp.comSigned-off-by: Mark Brown <broonie@kernel.org>

Platform_driver probe functions aren't called with locks held
and thus don't need GFP_ATOMIC. Use GFP_KERNEL instead.

Problem found with Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220210204223.104181-4-Julia.Lawall@inria.frSigned-off-by: Mark Brown <broonie@kernel.org>

Enable access to the speaker protection firmware debug stream
using compress stream API and lower minimum fragment size to
16 words.
Signed-off-by: Vlad Karpovich <Vlad.Karpovich@cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220210172053.22782-3-ckeepax@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>

Newer firmwares will support compressed buffers that may or may not
exist, for example debugging streams. Update the driver to make a
compressed stream optional. A warning will still be generated at DSP
boot time and opening the stream will fail if the compressed buffer in
question does not exist, however the DSP can still be booted and other
features used.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220210172053.22782-2-ckeepax@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>