ASoC: codecs: msm8916-wcd-digital: Convert to platform remove callback returning void

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20230315150745.67084-55-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: msm*: Remove now redundant non_legacy_dai_naming flag

The ASoC core has now been changed to default to the non-legacy DAI
naming, as such drivers using the new scheme no longer need to specify
the non_legacy_dai_naming flag.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220623125250.2355471-54-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: msm8916-wcd-digital: move gains from SX_TLV to S8_TLV

move all the digital gains form using SX_TLV to S8_TLV, these gains are
actually 8 bit gains with 7th signed bit and ranges from -84dB to +40dB

rest of the Qualcomm wcd codecs uses these properly.

Fixes: ef8a4757a6db ("ASoC: msm8916-wcd-digital: Add sidetone support")
Fixes: 150db8c5afa1 ("ASoC: codecs: Add msm8916-wcd digital codec")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220609111901.318047-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: msm8916-wcd-digital: Check failure for devm_snd_soc_register_component

devm_snd_soc_register_component() may fails, we should check the error
and do the corresponding error handling.

Fixes: 150db8c5afa1 ("ASoC: codecs: Add msm8916-wcd digital codec")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220403115239.30140-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: msm8916-wcd-digital: Fix missing clk_disable_unprepare() in msm8916_wcd_digital_probe

Fix the missing clk_disable_unprepare() before return
from msm8916_wcd_digital_probe in the error handling case.

Fixes: 150db8c5afa1 ("ASoC: codecs: Add msm8916-wcd digital codec")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220307084523.28687-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: msm*: rename to snd_soc_component_read()

We need to use snd_soc_component_read()
instead of snd_soc_component_read32()

This patch renames _read32() to _read()

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87h7vb4mdf.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: msm8916-wcd-digital: Reset RX interpolation path after use

For some reason, attempting to route audio through QDSP6 on MSM8916
causes the RX interpolation path to get "stuck" after playing audio
a few times. In this situation, the analog codec part is still working,
but the RX path in the digital codec stops working, so you only hear
the analog parts powering up. After a reboot everything works again.

So far I was not able to reproduce the problem when using lpass-cpu.

The downstream kernel driver avoids this by resetting the RX
interpolation path after use. In mainline we do something similar
for the TX decimator (LPASS_CDC_CLK_TX_RESET_B1_CTL), but the
interpolator reset (LPASS_CDC_CLK_RX_RESET_CTL) got lost when the
msm8916-wcd driver was split into analog and digital.

Fix this problem by adding the reset to
msm8916_wcd_digital_enable_interpolator().

Fixes: 150db8c5afa1 ("ASoC: codecs: Add msm8916-wcd digital codec")
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20200105102753.83108-1-stephan@gerhold.net
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: msm8916-wcd-digital: add missing MIX2 path for RX1/2

This patch adds missing MIX2 path on RX1/2 which take IIR1 and
IIR2 as inputs.

Without this patch sound card fails to intialize with below warning:

ASoC: no sink widget found for RX1 MIX2 INP1
ASoC: Failed to add route IIR1 -> IIR1 -> RX1 MIX2 INP1
ASoC: no sink widget found for RX2 MIX2 INP1
ASoC: Failed to add route IIR1 -> IIR1 -> RX2 MIX2 INP1
ASoC: no sink widget found for RX1 MIX2 INP1
ASoC: Failed to add route IIR2 -> IIR2 -> RX1 MIX2 INP1
ASoC: no sink widget found for RX2 MIX2 INP1
ASoC: Failed to add route IIR2 -> IIR2 -> RX2 MIX2 INP1

Reported-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20191009111944.28069-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: msm8916-wcd: use devm_platform_ioremap_resource() to simplify code

Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190727150738.54764-17-yuehaibing@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: msm8916-wcd-digital: Add sidetone support

This patch adds sidetone support via one of the 3 RX Mix paths
using IIR1 and IIR2.
IIR1 can be feed by any Decimators or RX paths, and IIRx can also be
looped back to RX mixers to provide sidetone functionality.
Two IIR filters are used for Side tone equalization and each filter
is 5 stage.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: msm8916-wcd-digital: convert license header to SPDX

Convert the GPLv2-only license header to SPDX.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: msm8916-wcd-digital: remove few unused variables

This patch removes unused variables which also fixes below warnings:

msm8916-wcd-digital.c:245:30: warning: 'rx2_mix2_inp1_chain_enum'
defined but not used [-Wunused-const-variable=]
static const struct soc_enum rx2_mix2_inp1_chain_enum = SOC_ENUM_SINGLE(
^~~~~~~~~~~~~~~~~~~~~~~~
msm8916-wcd-digital.c:234:30: warning: 'rx_mix2_inp1_chain_enum'
defined but not used [-Wunused-const-variable=]
static const struct soc_enum rx_mix2_inp1_chain_enum = SOC_ENUM_SINGLE(
^~~~~~~~~~~~~~~~~~~~~~~
msm8916-wcd-digital.c:224:26: warning: 'adc2_mux_text'
defined but not used [-Wunused-const-variable=]
static const char *const adc2_mux_text[] = { "ZERO", "INP2", "INP3" };
^~~~~~~~~~~~~
msm8916-wcd-digital.c:223:26: warning: 'rx_mix2_text'
defined but not used [-Wunused-const-variable=]

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: msm8916-wcd-digital: replace codec to component

Now we can replace Codec to Component. Let's do it.

Note:
xxx_codec_xxx() -> xxx_component_xxx()
.idle_bias_off = 0 -> .idle_bias_on = 1
.ignore_pmdown_time = 0 -> .use_pmdown_time = 1
- -> .endianness = 1
- -> .non_legacy_dai_naming = 1

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: msm8916-wcd: Fix supported formats

This codec is configurable for only 16 bit and 32 bit samples, so reflect
this in the supported formats also remove 24bit sample from supported list.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org

ASoC: msm8916-wcd-digital: fix RX2 MIX1 and RX3 MIX1

The kcontrol for the third input (rxN_mix1_inp3) of both RX2
and RX3 mixers are not using the correct control register. This simple
patch fixes this.

Signed-off-by: Jean-François Têtu <jean-francois.tetu@savoirfairelinux.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: constify snd_soc_dai_ops structures

snd_soc_dai_ops are not supposed to change at runtime. All functions
working with snd_soc_dai_ops provided by <sound/soc-dai.h> work with
const snd_soc_dai_ops. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: add const to snd_soc_codec_driver structures

Declare snd_soc_codec_driver structures as const as they are only passed
as an argument to the function snd_soc_register_codec. This argument is
of type const, so declare the structures with this property as const.
In file codecs/sn95031.c, snd_soc_codec_driver structure is also used in
a copy operation along with getting passed to snd_soc_register_codec.
So, it can be made const too.
Done using Coccinelle:

@match disable optional_qualifier@
identifier s;
position p;
@@
static struct snd_soc_codec_driver s@p={...};

@good1@
identifier match.s;
position p;
@@
snd_soc_register_codec(...,&s@p,...)

@bad@
identifier match.s;
position p!={match.p,good1.p};
@@
s@p

@depends on !bad disable optional_qualifier@
identifier match.s;
@@
static
+const
struct snd_soc_codec_driver s={...};

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: msm8916-wcd-digital: add CIC filter source selection path

This patch fixes a missing selection of DMIC in CIC filter source path
to dapm route. Without this patch dmic is not functional.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: msm8916-wcd-digital: add support to set_sysclk

This patch adds support to set_sysclk() which can let the sound
card driver to set default mclk rate. In this case MCLK for
internal audio codec is expected to be at 9.6MHz by default.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: msm8916-wcd-digital: add support to set_sysclk

This patch adds support to set_sysclk() which can let the sound
card driver to set default mclk rate. In this case MCLK for
internal audio codec is expected to be at 9.6MHz by default.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: msm8916-wcd-digital: constify snd_soc_dai_ops structure

This structure is only stored in the ops field of a snd_soc_dai_driver
structure. That field is declared const, so snd_soc_dai_ops structures
that have this property can be declared as const also.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: msm8916-wcd-digital: rename parse_dt to get_clks

This patch renames msm8916_wcd_digital_parse_dt() to
msm8916_wcd_digital_get_clks() as the function is not directly dealing
with dt parsing.

No functional changes done.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: codecs: Add msm8916-wcd digital codec

msm8916-wcd codec is found in Qualcomm msm8916 and apq8016 processors.
This codec IP is split in to two parts(Digital & Analog).
Analog part is integrated in to PMIC PM8916 and the digital part is
integrated into Application processor. Data transfer between Analog and
Digital Die is done via a internal bus called PDM.

This patch adds support to Digital part of the Codec which is integrated
into Application Processor.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>