[PATCH v2 0/6] Add RIIC support for RZ/T2H and RZ/N2H SoCs

From: Prabhakar
Date: Mon Jun 09 2025 - 14:43:09 EST


From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

Hi All,

This patch series adds support for I2C Bus Interface (RIIC) found on
the Renesas RZ/T2H (R9A09G077) and RZ/N2H (R9A09G087) SoCs. The RIIC
IP on these SoCs is similar to that on the RZ/V2H(P) SoC but has some
differences in interrupt handling and does not require resets.

v1-> v2:
- Added Acked-by, Reviewed-by and Tested-by tags.
- Listed the interrupts in the order as mentioned in the
HW manual.
- Renamed the interrupt names to match the HW manual.
- Initialized the members of `riic_of_data` in the order they are
declared in the struct.

Cheers,
Prabhakar

Lad Prabhakar (6):
dt-bindings: i2c: renesas,riic: Move ref for i2c-controller.yaml to
the end
dt-bindings: i2c: renesas,riic: Document RZ/T2H support
dt-bindings: i2c: renesas,riic: Document RZ/N2H support
i2c: riic: Pass IRQ desc array as part of OF data
i2c: riic: Move generic compatible string to end of array
i2c: riic: Add support for RZ/T2H SoC

.../devicetree/bindings/i2c/renesas,riic.yaml | 105 ++++++++++++------
drivers/i2c/busses/i2c-riic.c | 54 +++++++--
2 files changed, 117 insertions(+), 42 deletions(-)

--
2.49.0