usb: typec: support Qualcomm WCD939X USB SubSystem Altmode Mux
Qualcomm WCD9390/WCD9395 is a standalone Hi-Fi audio codec IC with a
functionally separate USB SubSystem for Altmode/Analog Audio Switch
accessible over an I2C interface.
It provides switching USB-C USB2.0 lines between USB and Audio Headphones
speaker lines, and the USB-C SBU lines between DisplayPort AUX and Audio
Headphones Microphone/Ground.
The Audio Headphone and Microphone data path between the Codec and the
USB-C Mux subsystems are external to the IC, thus requiring DT
port-endpoint graph description to handle USB-C altmode & orientation
switching for Audio Accessory Mode.
To: Andy Gross <agross@kernel.org>
To: Bjorn Andersson <andersson@kernel.org>
To: Konrad Dybcio <konrad.dybcio@linaro.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Rob Herring <robh+dt@kernel.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
To: Conor Dooley <conor+dt@kernel.org>
To: Heikki Krogerus <heikki.krogerus@linux.intel.com>
To: Liam Girdwood <lgirdwood@gmail.com>
To: Mark Brown <broonie@kernel.org>
Cc: linux-arm-msm@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
Changes in v2:
- Bindings:
- Limited text width to 80 chars max
- Added maxItems: 1 to reset-gpios
- Driver
- Added missing bitfield.h and gpio/consumer.h includes
- Fixed double typec_switch_unregister()
- Added missing typec_switch_put() in remove()
- Removed useless wcd9395-usbss compatible & device_id since wcd9395 has wcd9390 as fallback
- Link to v1: https://lore.kernel.org/r/20231208-topic-sm8650-upstream-wcd939x-usbss-v1-0-91d1ba680fe0@linaro.org
---
Neil Armstrong (2):
dt-bindings: usb: Document WCD939x USB SubSystem Altmode/Analog Audio Switch
usb: typec: mux: add Qualcomm WCD939X USB SubSystem Altmode Mux driver
.../bindings/usb/qcom,wcd939x-usbss.yaml | 102 +++
drivers/usb/typec/mux/Kconfig | 10 +
drivers/usb/typec/mux/Makefile | 1 +
drivers/usb/typec/mux/wcd939x-usbss.c | 779 +++++++++++++++++++++
4 files changed, 892 insertions(+)
---
base-commit: bc63de6e6ba0b16652c5fb4b9c9916b9e7ca1f23
change-id: 20231208-topic-sm8650-upstream-wcd939x-usbss-030c011a1709
Best regards,