diff options
| author | Peng Fan <peng.fan@nxp.com> | 2017-08-14 18:00:05 +0800 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2017-08-23 07:04:56 +0200 |
| commit | a430556ecb630d26880b34b914b6ec29f5454d01 (patch) | |
| tree | dea088bf097f32bc61169fd812eb49c9f5631896 /include/efi_api.h | |
| parent | 4fadcaf097887d94c909fd924864f435c69c9182 (diff) | |
i2c: muxes: add i2c gpio multiplexer driver
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>
Diffstat (limited to 'include/efi_api.h')
0 files changed, 0 insertions, 0 deletions