This patchset adds support for two Codec Macro blocks( WSA and VA) available in Qualcomm LPASS (Low Power Audio SubSystem).
There are WSA, VA, TX and RX Macros on LPASS IP, each of the Macro block has specific connectivity like WSA Macros are intended to connect to WSA Smart speaker codecs via SoundWire. VA Macro is intended for DMICs, and TX/RX for Analog codecs via SoundWire like other WCD Codecs to provide headphone/ear/lineout etc ..
Most of the work is derived from downstream Qualcomm kernels. Credits to various Qualcomm authors from Patrick Lai's team who have contributed to this code.
This patchset has been tested on support to Qualcomm Robotics RB5 Development Kit based on QRB5165 Robotics SoC. This board has 2 WSA881X smart speakers with onboard DMIC connected to internal LPASS codec via WSA and VA macros respectively.
yaml bindings depend on gfm headers from "clk: qcom : add sm8250 LPASS GFM drivers" patches posted at https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg2352255.html
Thanks, srini
Srinivas Kandagatla (6): ASoC: qcom: dt-bindings: add bindings for lpass wsa macro codec ASoC: codecs: lpass-wsa-macro: Add support to WSA Macro ASoC: codecs: lpass-wsa-macro: add dapm widgets and route ASoC: qcom: dt-bindings: add bindings for lpass va macro codec ASoC: codecs: lpass-va-macro: Add support to VA Macro ASoC: codecs: lpass-va-macro: add dapm widgets and routes
.../bindings/sound/qcom,lpass-va-macro.yaml | 68 + .../bindings/sound/qcom,lpass-wsa-macro.yaml | 70 + sound/soc/codecs/Kconfig | 8 + sound/soc/codecs/Makefile | 4 + sound/soc/codecs/lpass-va-macro.c | 1500 ++++++++++ sound/soc/codecs/lpass-wsa-macro.c | 2503 +++++++++++++++++ sound/soc/codecs/lpass-wsa-macro.h | 15 + 7 files changed, 4168 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/qcom,lpass-va-macro.yaml create mode 100644 Documentation/devicetree/bindings/sound/qcom,lpass-wsa-macro.yaml create mode 100644 sound/soc/codecs/lpass-va-macro.c create mode 100644 sound/soc/codecs/lpass-wsa-macro.c create mode 100644 sound/soc/codecs/lpass-wsa-macro.h