This builds on top of my in-flight series that adds the syscon node for the
switch block[1]. The I2C controllers are part of that block of registers. The
controller driver is adapted from openwrt, the multiplexing support is added by
me and differs from the openwrt implementation.

[1] - https://lore.kernel.org/lkml/20240913024948.1317786-1-chris.packham@alliedtelesis.co.nz/

Chris Packham (5):
  dt-bindings: i2c: Add RTL9300 I2C controller
  i2c: Add driver for the RTL9300 I2C controller
  mips: dts: realtek: Add I2C controllers
  dt-bindings: i2c: Add RTL9300 I2C multiplexer
  i2c: rtl9300: Add multiplexing support

 .../bindings/i2c/realtek,rtl9300-i2c-mux.yaml |  82 +++
 .../bindings/i2c/realtek,rtl9300-i2c.yaml     |  73 +++
 MAINTAINERS                                   |   8 +
 arch/mips/boot/dts/realtek/rtl930x.dtsi       |  18 +
 drivers/i2c/busses/Kconfig                    |  10 +
 drivers/i2c/busses/Makefile                   |   1 +
 drivers/i2c/busses/i2c-rtl9300.c              | 543 ++++++++++++++++++
 7 files changed, 735 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/realtek,rtl9300-i2c-mux.yaml
 create mode 100644 Documentation/devicetree/bindings/i2c/realtek,rtl9300-i2c.yaml
 create mode 100644 drivers/i2c/busses/i2c-rtl9300.c

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2.46.1