ASoC: qcom: sc8280xp: limit speaker volumes

The UCM configuration for the Lenovo ThinkPad X13s has up until now
been setting the speaker PA volume to the minimum -3 dB when enabling
the speakers, but this does not prevent the user from increasing the
volume further.

Limit the digital gain and PA volumes to a combined -3 dB in the machine
driver to reduce the risk of speaker damage until we have active speaker
protection in place (or higher safe levels have been established).

Note that the PA volume limit cannot be set lower than 0 dB or
PulseAudio gets confused when the first 16 levels all map to -3 dB.

Also note that this will probably need to be generalised using
machine-specific limits, but a common limit should do for now.

Cc: <stable@vger.kernel.org> # 6.5
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://msgid.link/r/20240122181819.4038-3-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: qcom: Fix trivial code style issues

Fix few trivial code style issues, pointed out by checkpatch, so they do
not get copied to new code (when old code is used as template):

WARNING: Prefer "GPL" over "GPL v2" - see commit bf7fbeeae6db ("module: Cure the MODULE_LICENSE "GPL" vs. "GPL v2" bogosity")
WARNING: function definition argument 'struct platform_device *' should also have an identifier name
ERROR: code indent should use tabs where possible
WARNING: please, no spaces at the start of a line
WARNING: Missing a blank line after declarations
WARNING: unnecessary whitespace before a quoted newline

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://msgid.link/r/20231204100048.211800-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: qcom: sc8280xp: Add support for SM8650

Add compatibles for sound card on Qualcomm SM8650 boards.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://msgid.link/r/20231212-topic-sm8650-upstream-snd-card-v1-2-fbfc38471204@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: qcom: sc8280xp: Add support for SM8450 and SM8550

Add compatibles for sound card on Qualcomm SM8450 and SM8550 boards.
The compatibles were already documented.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231201135332.154017-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: qcom: sc8280xp: set card driver name from match data

Sound machine drivers for all newer Qualcomm SoC platforms are the
exactly same, therefore it makes sense to use same machine driver for
newer platforms as well. Choice of sound topology and user-space Alsa
UCM files depends however on card driver name, which must be customized
per each board. Allow such customization by using driver match data as
sound card driver name.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231201135332.154017-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: qcom: Move Soundwire runtime stream alloc to soundcards

Currently the Qualcomm Soundwire controller in its DAI startup op
allocates the Soundwire stream runtime. This works fine for existing
designs, but has limitations for stream runtimes with multiple
controllers, like upcoming Qualcomm X1E80100 SoC with four WSA8840
speakers on two Soundwire controllers.

When two Soundwire controllers are added to sound card codecs, Soundwire
startup() is called twice, one for each Soundwire controller, and second
execution overwrites what was set before. During shutdown() this causes
double free.

It is expected to have only one Soundwire stream runtime, thus it should
be allocated from SoC soundcard context startup(), not from each
Soundwire startup(). Such way will properly handle both cases: one and
two Soundwire controllers in the stream runtime.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231128165638.757665-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: qcom: sc8280xp: Limit speaker digital volumes

Limit the speaker digital gains to 0dB so that the users will not damage them.
Currently there is a limit in UCM, but this does not stop the user form
changing the digital gains from command line. So limit this in driver
which makes the speakers more safer without active speaker protection in
place.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20231204124736.132185-3-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: qcom: reduce number of binding headers includes

Move the includes of binding headers from Qualcomm SoC sound drivers
headers to unit files actually using these bindings. This reduces the
amount of work for C preprocessor and makes usage of bindings easier to
follow. No impact expected on the final binaries.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231005075250.88159-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: Explicitly include correct DT includes

The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it was merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.

Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev> # for at91
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20231006-dt-asoc-header-cleanups-v3-1-13a4f0f7fee6@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: qcom: convert not to use asoc_xxx()

ASoC is now unified asoc_xxx() into snd_soc_xxx().
This patch convert asoc_xxx() to snd_soc_xxx().

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87v8cgqnjc.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: qcom: Fix building APQ8016 machine driver without SOUNDWIRE

Older Qualcomm platforms like APQ8016 do not have hardware support for
SoundWire, so kernel configurations made specifically for those platforms
will usually not have CONFIG_SOUNDWIRE enabled.

Unfortunately commit 8d89cf6ff229 ("ASoC: qcom: cleanup and fix
dependency of QCOM_COMMON") breaks those kernel configurations, because
SOUNDWIRE is now a required dependency for SND_SOC_QCOM_COMMON (and in
turn also SND_SOC_APQ8016_SBC). Trying to migrate such a kernel config
silently disables SND_SOC_APQ8016_SBC and breaks audio functionality.

The soundwire helpers in common.c are only used by two of the Qualcomm
audio machine drivers, so building and requiring CONFIG_SOUNDWIRE for
all platforms is unnecessary.

There is no need to stuff all common code into a single module. Fix the
issue by moving the soundwire helpers to a separate SND_SOC_QCOM_SDW
module/option that is selected only by the machine drivers that make
use of them. This also allows reverting the imply/depends changes from
the previous fix because both SM8250 and SC8280XP already depend on
SOUNDWIRE, so the soundwire helpers will be only built if SOUNDWIRE
is really enabled.

Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Fixes: 8d89cf6ff229 ("ASoC: qcom: cleanup and fix dependency of QCOM_COMMON")
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20221231115506.82991-1-stephan@gerhold.net
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: qcom: add machine driver for sc8280xp

Add machine driver for sc8280xp SoC.

This intial supports only includes WSA883x Speakers and WCD938x based headset.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220916132427.1845-6-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>