Hi,
The Renesas IDT821034 codec is four channel PCM codec with on-chip filters and programmable gain setting. It also provides SLIC (Subscriber Line Interface Circuit) signals as GPIOs.
Best regards, Herve Codina
Herve Codina (3): dt-bindings: sound: Add Renesas IDT821034 codec ASoC: codecs: Add support for the Renesas IDT821034 codec MAINTAINERS: add the Renesas IDT821034 codec entry
.../bindings/sound/renesas,idt821034.yaml | 97 ++ MAINTAINERS | 7 + sound/soc/codecs/Kconfig | 12 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/idt821034.c | 1234 +++++++++++++++++ 5 files changed, 1352 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/renesas,idt821034.yaml create mode 100644 sound/soc/codecs/idt821034.c