q3k/linux
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
linux/drivers/i2c/muxes/Kconfig

53 lines
1.5 KiB
Text
Raw Normal View History

i2c: I2C bus multiplexer driver pca954x I2C driver for PCA954x I2C multiplexer series. Signed-off-by: Michael Lawnick <ml.lawnick@gmx.de> Acked-by: Rodolfo Giometti <giometti@linux.it> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-08-11 16:21:03 +00:00
#
# Multiplexer I2C chip drivers configuration
#
menu "Multiplexer I2C Chip support"
depends on I2C_MUX
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>
2011-01-10 21:11:23 +00:00
config I2C_MUX_GPIO
tristate "GPIO-based I2C multiplexer"
depends on GENERIC_GPIO
help
If you say yes to this option, support will be included for a
GPIO based I2C multiplexer. This driver provides access to
I2C busses connected through a MUX, which is controlled
through GPIO pins.
This driver can also be built as a module. If so, the module
i2c: Rename last mux driver to standard pattern Update the MAINTAINERS entry and all other references accordingly. Based on an original patch by Wolfram Sang. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Peter Korsgaard <peter.korsgaard@barco.com> [wsa: fixed merge conflict due to rework in i2c_add_mux_adapter()] Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-04-28 13:32:06 +00:00
will be called i2c-mux-gpio.
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>
2011-01-10 21:11:23 +00:00
i2c/mux: Driver for PCA9541 I2C Master Selector This patch adds support for PCA9541, an I2C Bus Master Selector. The driver is modeled as single channel I2C Multiplexer to be able to utilize the I2C multiplexer framework. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Reviewed-by: Tom Grennan <tom.grennan@ericsson.com> Acked-by: Jean Delvare <khali@linux-fr.org>
2010-10-24 16:16:58 +00:00
config I2C_MUX_PCA9541
tristate "NXP PCA9541 I2C Master Selector"
depends on EXPERIMENTAL
help
If you say yes here you get support for the NXP PCA9541
I2C Master Selector.
This driver can also be built as a module. If so, the module
i2c: muxes: rename first set of drivers to a standard pattern Apply a naming pattern like in the rest of the subsystem to a first set of mux drivers. Those drivers are the low-hanging fruit; we want to pick them to motivate upcoming drivers to follow the new pattern. The missing GPIO driver will be converted in a later patch. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> (pca9541) Acked-by: Jean Delvare <khali@linux-fr.org>
2012-04-25 20:29:43 +00:00
will be called i2c-mux-pca9541.
i2c/mux: Driver for PCA9541 I2C Master Selector This patch adds support for PCA9541, an I2C Bus Master Selector. The driver is modeled as single channel I2C Multiplexer to be able to utilize the I2C multiplexer framework. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Reviewed-by: Tom Grennan <tom.grennan@ericsson.com> Acked-by: Jean Delvare <khali@linux-fr.org>
2010-10-24 16:16:58 +00:00
i2c: I2C bus multiplexer driver pca954x I2C driver for PCA954x I2C multiplexer series. Signed-off-by: Michael Lawnick <ml.lawnick@gmx.de> Acked-by: Rodolfo Giometti <giometti@linux.it> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-08-11 16:21:03 +00:00
config I2C_MUX_PCA954x
tristate "Philips PCA954x I2C Mux/switches"
depends on EXPERIMENTAL
help
If you say yes here you get support for the Philips PCA954x
I2C mux/switch devices.
This driver can also be built as a module. If so, the module
i2c: muxes: rename first set of drivers to a standard pattern Apply a naming pattern like in the rest of the subsystem to a first set of mux drivers. Those drivers are the low-hanging fruit; we want to pick them to motivate upcoming drivers to follow the new pattern. The missing GPIO driver will be converted in a later patch. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> (pca9541) Acked-by: Jean Delvare <khali@linux-fr.org>
2012-04-25 20:29:43 +00:00
will be called i2c-mux-pca954x.
i2c: I2C bus multiplexer driver pca954x I2C driver for PCA954x I2C multiplexer series. Signed-off-by: Michael Lawnick <ml.lawnick@gmx.de> Acked-by: Rodolfo Giometti <giometti@linux.it> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-08-11 16:21:03 +00:00
i2c: Add generic I2C multiplexer using pinctrl API This is useful for SoCs whose I2C module's signals can be routed to different sets of pins at run-time, using the pinctrl API. +-----+ +-----+ | dev | | dev | +------------------------+ +-----+ +-----+ | SoC | | | | /----|------+--------+ | +---+ +------+ | child bus A, on first set of pins | |I2C|---|Pinmux| | | +---+ +------+ | child bus B, on second set of pins | \----|------+--------+--------+ | | | | | +------------------------+ +-----+ +-----+ +-----+ | dev | | dev | | dev | +-----+ +-----+ +-----+ Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-05-18 15:29:34 +00:00
config I2C_MUX_PINCTRL
tristate "pinctrl-based I2C multiplexer"
depends on PINCTRL
help
If you say yes to this option, support will be included for an I2C
multiplexer that uses the pinctrl subsystem, i.e. pin multiplexing.
This is useful for SoCs whose I2C module's signals can be routed to
different sets of pins at run-time.
This driver can also be built as a module. If so, the module will be
called pinctrl-i2cmux.
i2c: I2C bus multiplexer driver pca954x I2C driver for PCA954x I2C multiplexer series. Signed-off-by: Michael Lawnick <ml.lawnick@gmx.de> Acked-by: Rodolfo Giometti <giometti@linux.it> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-08-11 16:21:03 +00:00
endmenu
Reference in a new issue Copy permalink