ASoC: codecs: wsa883x: fix PA volume control

The PA gain can be set in steps of 1.5 dB from -3 dB to 18 dB, that is,
in 15 levels.

Fix the dB values for the PA volume control as experiments using wsa8835
show that the first 16 levels all map to the same lowest gain while the
last three map to the highest gain.

These values specifically need to be correct for the sound server to
provide proper volume control.

Note that level 0 (-3 dB) does not mute the PA so the mute flag should
also not be set.

Fixes: cdb09e623143 ("ASoC: codecs: wsa883x: add control, dapm widgets and map")
Cc: stable@vger.kernel.org # 6.0
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://msgid.link/r/20240119112420.7446-2-johan+linaro@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: wsa883x: make use of new mute_unmute_on_trigger flag

In the current setup the PA is left unmuted even when the
Soundwire ports are not started streaming. This can lead to click
and pop sounds during start.
There is a same issue in the reverse order where in the PA is
left unmute even after the data stream is stopped, the time
between data stream stopping and port closing is long enough
to accumulate DC on the line resulting in Click/Pop noise
during end of stream.

making use of new mute_unmute_on_trigger flag is helping a
lot with this Click/Pop issues reported on this Codec

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20231027105747.32450-3-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: wsa883x: Update to use maple tree register cache

The maple tree register cache is based on a much more modern data structure
than the rbtree cache and makes optimisation choices which are probably
more appropriate for modern systems than those made by the rbtree cache. In
v6.5 it has also acquired the ability to generate multi-register writes in
sync operations, bringing performance up to parity with the rbtree cache
there.

Update the wsa883x driver to use the more modern data structure.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230712-asoc-qcom-maple-v1-4-15f8089664b9@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: wsa883x: use existing define instead of raw value

Use existing define for WSA883X_GLOBAL_PA_ENABLE instead of hard-coded
value, just like in other places in this driver.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230607171326.179527-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: wsa883x: do not set can_multi_write flag

regmap-sdw does not support multi register writes, so there is
no point in setting this flag. This also leads to incorrect
programming of WSA codecs with regmap_multi_reg_write() call.

This invalid configuration should have been rejected by regmap-sdw.

Fixes: 43b8c7dc85a1 ("ASoC: codecs: add wsa883x amplifier support")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230523154605.4284-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: wsa88xx: remove unneeded includes

Remove unneeded includes from wsa881x and wsa883x drivers. The drivers
do not reference anything from the headers.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230124163953.345949-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: constify static sdw_port_config struct

The struct sdw_port_config is not modified, so make it a const for code
safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230124163953.345949-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: constify static sdw_slave_ops struct

The struct sdw_slave_ops is not modified and sdw_driver takes pointer to
const, so make it a const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230124163953.345949-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: wsa883x: Simplify &pdev->dev in probe

The probe already stores pointer to &pdev->dev, so use it to make the
code a bit easier to read.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230102114152.297305-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: wsa883x: correct playback min/max rates

Correct reversed values used in min/max rates, leading to incorrect
playback constraints.

Cc: <stable@vger.kernel.org>
Fixes: 43b8c7dc85a1 ("ASoC: codecs: add wsa883x amplifier support")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230124123049.285395-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: wsa883x: Simplify with dev_err_probe

Code can be a bit simpler with dev_err_probe().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221109163759.1158837-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: wsa883x: Shutdown on error path

If probe fails, toggle shutdown via GPIO to save power and reverse
probe actions.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221109163759.1158837-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: wsa883x: use correct header file

Fix build errors when GPIOLIB is not set/enabled:

../sound/soc/codecs/wsa883x.c: In function 'wsa883x_probe':
../sound/soc/codecs/wsa883x.c:1394:25: error: implicit declaration of function 'devm_gpiod_get_optional'; did you mean 'devm_regulator_get_optional'? [-Werror=implicit-function-declaration]
wsa883x->sd_n = devm_gpiod_get_optional(&pdev->dev, "powerdown",
../sound/soc/codecs/wsa883x.c:1395:49: error: 'GPIOD_FLAGS_BIT_NONEXCLUSIVE' undeclared (first use in this function)
GPIOD_FLAGS_BIT_NONEXCLUSIVE);
../sound/soc/codecs/wsa883x.c:1414:9: error: implicit declaration of function 'gpiod_direction_output'; did you mean 'gpio_direction_output'? [-Werror=implicit-function-declaration]
gpiod_direction_output(wsa883x->sd_n, 1);

Fixes: 43b8c7dc85a1 ("ASoC: codecs: add wsa883x amplifier support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Banajit Goswami <bgoswami@quicinc.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: alsa-devel@alsa-project.org
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20221108001829.5100-1-rdunlap@infradead.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: wsa883x: Use proper shutdown GPIO polarity

The shutdown GPIO is active low (SD_N), but this depends on actual board
layout. Linux drivers should only care about logical state, where high
(1) means shutdown and low (0) means do not shutdown.

Invert the GPIO to match logical value.

Fixes: 43b8c7dc85a1 ("ASoC: codecs: add wsa883x amplifier support")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20221110133512.478831-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: wsa883x: add clock stop support

WSA883x does support clock stop, so remove code that reset
the Codec during runtime pm suspend and add flag to mark
clock stop support.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220906170112.1984-7-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: wsa883x: fix warning using-module-alias-sdw.cocci

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this driver when it is built
as an external module.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Link: https://lore.kernel.org/r/20220705005315.663920-1-cuigaosheng1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: wsa883x: add missing break statement

Add missing break in one of the switch statement.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: cdb09e623143 ("ASoC: codecs: wsa883x: add control, dapm widgets and map")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220701125515.32332-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: wsa883x: handle timeouts in resume path

Currently we do not check if SoundWire slave initialization timeout
expired before continuing to access its registers.

Its possible that the registers are not accessible if timeout is
expired. Handle this by returning timeout in resume path.

Reported-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Fixes: 43b8c7dc85a1 ("ASoC: codecs: add wsa883x amplifier support")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220630130023.9308-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: wsa883x: add control, dapm widgets and map

Add controls, dapm widgets along with route.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220630123633.8047-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: add wsa883x amplifier support

This patch adds support to WSA8830/WSA8812/WSA8835 Class-D Smart
Speaker Amplifier. This Amplifier is primarily interfaced with
SoundWire.

This patch is tested on SM8450 MTP Board.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220629090644.67982-3-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>