diff options
| author | Peter Korsgaard <peter.korsgaard@barco.com> | 2011-01-10 21:11:23 (GMT) |
|---|---|---|
| committer | Jean Delvare <khali@endymion.delvare> | 2011-01-10 21:11:23 (GMT) |
| commit | 92ed1a76ca31774eb27de14b2215841367c68056 (patch) | |
| tree | f9becefa5dbcdaa8cfd65100e1735044cd3910d6 /drivers/i2c/muxes/Makefile | |
| parent | b18a5c80eb2e7e9c72d23f1960b09d78ddf7e5b0 (diff) | |
| download | linux-fsl-qoriq-92ed1a76ca31774eb27de14b2215841367c68056.tar.xz | |
i2c: Add generic I2C multiplexer using GPIO API
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.
Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/i2c/muxes/Makefile')
| -rw-r--r-- | drivers/i2c/muxes/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/i2c/muxes/Makefile b/drivers/i2c/muxes/Makefile index d743806..4640436 100644 --- a/drivers/i2c/muxes/Makefile +++ b/drivers/i2c/muxes/Makefile @@ -1,6 +1,7 @@ # # Makefile for multiplexer I2C chip drivers. +obj-$(CONFIG_I2C_MUX_GPIO) += gpio-i2cmux.o obj-$(CONFIG_I2C_MUX_PCA9541) += pca9541.o obj-$(CONFIG_I2C_MUX_PCA954x) += pca954x.o |