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![]() Add an i2c mux driver providing access to i2c bus segments using a hardware MUX sitting on a master bus and controlled through gpio pins. E.G. something like: ---------- ---------- Bus segment 1 - - - - - | | SCL/SDA | |-------------- | | | |------------| | | | | | Bus segment 2 | | | Linux | GPIO 1..N | MUX |--------------- Devices | |------------| | | | | | | | Bus segment M | | | |---------------| | ---------- ---------- - - - - - SCL/SDA of the master I2C bus is multiplexed to bus segment 1..M according to the settings of the GPIO pins 1..N. Note commit log from kernel commit 92ed1a76("i2c: Add generic I2C multiplexer using GPIO API") Signed-off-by: Peng Fan <peng.fan@nxp.com> Tested-by: Peng Fan <peng.fan@nxp.com> (i.MX6QP-Sabreauto) Cc: Heiko Schocher <hs@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Simon Glass <sjg@chromium.org> |
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i2c-arb-gpio-challenge.c | ||
i2c-mux-gpio.c | ||
i2c-mux-uclass.c | ||
Kconfig | ||
Makefile | ||
pca954x.c |