[0/7] ASoC: add Renesas MSIOF sound driver

Message

Kuninori Morimoto April 9, 2025, 1:04 a.m. UTC

Hi Mark, Rob

Renesas MSIOF can work as both SPI and I2S.
Current Linux supports MSIOF-SPI. This patch-set adds new MSIOF-I2S.

One concern is that because it is using same HW-IP, we want to share
same compatible for both MSIOF-SPI/I2S case.
MSIOF-I2S (Sound) will use Audio-Graph-Card/Card2 which uses Of-Graph.
So, this patch-set assumes if DT is using Of-Graph, it is MSIOF-I2S,
otherwise, it is MSIOF-SPI (This assumption will works if SPI *never*
use Of-Graph in the future).

[1/7]-[2/7] are for SPI driver not to detect in I2S case.
[3/7]-[6/7] are for I2S driver.
[7/7] is for DT, but it will be re-posted if [1/7]-[6/7] are accepted.

Kuninori Morimoto (7):
  spi: renesas,sh-msiof: Living separately from MSIOF I2S Sound
  spi: sh-msiof: ignore driver probing if it was MSIOF Sound
  ASoC: rsnd: allow to use ADG only
  ASoC: rsnd: enable to use "adg" clock
  ASoC: renesas: add MSIOF sound Documentation
  ASoC: renesas: add MSIOF sound support
  arm64: dts: renesas: sparrow hawk: Add MSIOF Sound support

 .../bindings/sound/renesas,msiof.yaml         | 112 ++++
 .../bindings/spi/renesas,sh-msiof.yaml        |  12 +
 .../dts/renesas/r8a779g3-sparrow-hawk.dts     |  98 +++
 drivers/spi/spi-sh-msiof.c                    |  10 +
 sound/soc/renesas/Kconfig                     |   7 +
 sound/soc/renesas/rcar/Makefile               |   3 +
 sound/soc/renesas/rcar/adg.c                  |  44 +-
 sound/soc/renesas/rcar/core.c                 |   7 +-
 sound/soc/renesas/rcar/msiof.c                | 579 ++++++++++++++++++
 9 files changed, 862 insertions(+), 10 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/sound/renesas,msiof.yaml
 create mode 100644 sound/soc/renesas/rcar/msiof.c