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Message-Id: <20231201-topic-sm8650-upstream-wcd939x-codec-v2-0-94ed814b25aa@linaro.org>
Date:   Fri, 01 Dec 2023 16:08:53 +0100
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Banajit Goswami <bgoswami@...cinc.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Cc:     linux-arm-msm@...r.kernel.org, alsa-devel@...a-project.org,
        linux-sound@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v2 0/5] ASoC: codecs: add support for WCD939x Codec

Add the main WCD9390/WCD9395 Audio Codec driver to support:
- 4 ADC inputs for up to 5 Analog Microphones
- 4 DMIC inputs for up to 8 Digital Microphones
- 4 Microphone BIAS
- Stereo Headphone output
- Mono EAR output
- MBHC engine for Headset Detection

This adds:
- bindings
- MBHC changes to support Type-C muc
- Soundwire Slave driver
- Code driver

The USB Mux subsystem support will be submitted separalety
since it's a functionally separate subsystem connected over
I2C with it's own reset signal.

Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
---
Changes in v2:
- Bindings:
  - Dropped all references to "Slave" or "Host" terminology when possible
  - Collected review for first patch
  - Added wcd9395 as fallback of wcd9390
  - Fixes typos errors
- MBHC:
  - Dropped all references to "Slave" or "Host" terminology when possible
  - Fixed EXPORT_SYMBOL into EXPORT_SYMBOL_GPL
  - Fixed typo in commit message
- Soundwire Devices driver
  - Dropped all references to "Slave" or "Host" terminology when possible
  - Dropped comments and unused code
  - Reworked wcd939x_swr_get_current_bank()
  - Added comments to wcd9390_interrupt_callback()
  - Reworked regmap's wcd939x_readonly/volatile_register checks
  - Added comments explaining while bind/unbind are empty
  - Added comment on SDW_SLAVE_ENTRY meaning
  - Added more register fields defines
  - Style fixes
- Codec driver
  - Dropped all references to "Slave" or "Host" terminology when possible
  - Added MICB_BIAS_ values enum and used them in the code
  - Moved zdet_param to the top
  - Added TLV data for ear_pa_gain and used it
  - Defined as much as possible every bit field used on/from register
  - Replaced 1/0 to true/false when writing to single bit fields
  - Replaced for loop on all bits with ffs(), simplified code
  - Simplified MICB fields handling code
  - Reworked and simplified wcd939x_get/set_compander and other kcontrol get/setters
  - Reworked and simplified MHGC impedance/zdet/qval code, dropped dead code
  - Added comments on wcd939x_wd_handle_irq() utility
  - Added comment on the interrupt handling architecture
- I've not moved common code yet, I'll probably do later since it would alter wcd939x code
- Link to v1: https://lore.kernel.org/r/20231123-topic-sm8650-upstream-wcd939x-codec-v1-0-21d4ad9276de@linaro.org

---
Neil Armstrong (5):
      ASoC: dt-bindings: qcom,wcd938x: move out common properties
      ASoC: dt-bindings: document WCD939x Audio Codec
      ASoC: codec: wcd-mbhc-v2: add support when connected behind an USB-C audio mux
      ASoC: codecs: Add WCD939x Soundwire devices driver
      ASoC: codecs: Add WCD939x Codec driver

 .../devicetree/bindings/sound/qcom,wcd938x.yaml    |   81 +-
 .../bindings/sound/qcom,wcd939x-sdw.yaml           |   69 +
 .../devicetree/bindings/sound/qcom,wcd939x.yaml    |   96 +
 .../bindings/sound/qcom,wcd93xx-common.yaml        |   95 +
 sound/soc/codecs/Kconfig                           |   18 +
 sound/soc/codecs/Makefile                          |    7 +
 sound/soc/codecs/wcd-clsh-v2.h                     |    1 +
 sound/soc/codecs/wcd-mbhc-v2.c                     |   95 +-
 sound/soc/codecs/wcd-mbhc-v2.h                     |    3 +
 sound/soc/codecs/wcd939x-sdw.c                     | 1584 +++++++++
 sound/soc/codecs/wcd939x.c                         | 3655 ++++++++++++++++++++
 sound/soc/codecs/wcd939x.h                         |  983 ++++++
 12 files changed, 6592 insertions(+), 95 deletions(-)
---
base-commit: 07b677953b9dca02928be323e2db853511305fa9
change-id: 20231123-topic-sm8650-upstream-wcd939x-codec-c46f621b55d4

Best regards,
-- 
Neil Armstrong <neil.armstrong@...aro.org>

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