This patchset adds support to Qualcomm WCD9340/WCD9341 Codec which is a standalone Hi-Fi audio codec IC. This codec supports both I2S/I2C and SLIMbus audio interfaces. On slimbus interface it supports two data lanes; 16 Tx ports and 8 Rx ports. It has Five DACs and seven dedicated interpolators, Multibutton headset control (MBHC), Active noise cancellation, Sidetone paths, MAD (mic activity detection) and codec processing engine. It supports Class-H differential earpiece out and stereo single ended headphones out.
This codec also has integrated SoundWire controller. Patchset for this is already sent for review at https://patchwork.kernel.org/cover/11185769/
This patchset has been tested on SDM845 based DragonBoard DB845c and Lenovo Yoga C630 laptop with WSA881x smart speaker amplifiers via soundwire and 4 DMICs.
Pin Controller patch does not have any link dependency, it can go by its own.
Most of the code in this driver is rework of Qualcomm downstream drivers used in Andriod. Credits to Banajit Goswami and Patrick Lai's Team.
If anyone is interested to try, here are working set of patches on top of rc3. https://git.linaro.org/people/srinivas.kandagatla/linux.git/log/?h=audio/v5.... alsa ucm files: https://git.linaro.org/people/srinivas.kandagatla/alsa-lib.git/log/?h=DB845c
Thanks, srini
Changes since v2: - Updated mfd driver as suggested by Lee. - Updated bindings as suggested by Rob. - Addressed various comments by Cezary Rojewski - Cleaned up code a bit.
Srinivas Kandagatla (10): ASoC: dt-bindings: add dt bindings for WCD9340/WCD9341 audio codec mfd: wcd934x: add support to wcd9340/wcd9341 codec ASoC: wcd934x: add support to wcd9340/wcd9341 codec ASoC: wcd934x: add basic controls ASoC: wcd934x: add playback dapm widgets ASoC: wcd934x: add capture dapm widgets ASoC: wcd934x: add audio routings dt-bindings: pinctrl: qcom-wcd934x: Add bindings for gpio ASoC: qcom: dt-bindings: Add compatible for DB845c and Lenovo Yoga ASoC: qcom: sdm845: add support to DB845c and Lenovo Yoga
Yeleswarapu Nagaradhesh (1): pinctrl: qcom-wcd934x: Add support to wcd934x pinctrl driver.
.../pinctrl/qcom,wcd934x-pinctrl.yaml | 52 + .../devicetree/bindings/sound/qcom,sdm845.txt | 5 +- .../bindings/sound/qcom,wcd934x.yaml | 162 + drivers/mfd/Kconfig | 12 + drivers/mfd/Makefile | 1 + drivers/mfd/wcd934x.c | 306 + drivers/pinctrl/qcom/Kconfig | 7 + drivers/pinctrl/qcom/Makefile | 1 + drivers/pinctrl/qcom/pinctrl-wcd934x-gpio.c | 365 ++ include/linux/mfd/wcd934x/registers.h | 529 ++ include/linux/mfd/wcd934x/wcd934x.h | 31 + sound/soc/codecs/Kconfig | 10 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/wcd934x.c | 5084 +++++++++++++++++ sound/soc/qcom/sdm845.c | 86 +- 15 files changed, 6651 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,wcd934x-pinctrl.yaml create mode 100644 Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml create mode 100644 drivers/mfd/wcd934x.c create mode 100644 drivers/pinctrl/qcom/pinctrl-wcd934x-gpio.c create mode 100644 include/linux/mfd/wcd934x/registers.h create mode 100644 include/linux/mfd/wcd934x/wcd934x.h create mode 100644 sound/soc/codecs/wcd934x.c