This is a revisit of two earlier efforts to add more complex mutliplexing to SPI busses. https://patchwork.kernel.org/patch/2706151/ https://patchwork.kernel.org/patch/10897255/ This version makes use of the general purpose mux controller which simplifies things greatly. Chris Packham (2): dt-bindings: spi: Document binding for generic SPI multiplexer spi: Add generic SPI multiplexer .../devicetree/bindings/spi/spi-mux.yaml | 82 ++++++++ drivers/spi/Kconfig | 12 ++ drivers/spi/Makefile | 1 + drivers/spi/spi-mux.c | 189 ++++++++++++++++++ 4 files changed, 284 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-mux.yaml create mode 100644 drivers/spi/spi-mux.c -- 2.25.0
