On Sat, Oct 17, 2020 at 8:30 AM Evan Green <evgreen@xxxxxxxxxxxx> wrote: > > Enable i2c-mux-gpio devices to be defined via ACPI. The idle-state > property translates directly to a fwnode_property_*() call. The child > reg property translates naturally into _ADR in ACPI. > > The i2c-parent binding is a relic from the days when the bindings > dictated that all direct children of an I2C controller had to be I2C > devices. These days that's no longer required. The i2c-mux can sit as a > direct child of its parent controller, which is where it makes the most > sense from a hardware description perspective. For the ACPI > implementation we'll assume that's always how the i2c-mux-gpio is > instantiated. Can you tell me if the following is relevant to what you are looking for? https://elixir.bootlin.com/linux/latest/source/drivers/i2c/i2c-mux.c#L393 -- With Best Regards, Andy Shevchenko
