diff options
| author |   Peter Rosin <peda@axentia.se> | 2017-05-14 21:51:07 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-03 19:29:26 +0900 |
| commit | 2c089f08e0de2a784106272c6454ce389fe12376 (patch) | |
| tree | b44936274ae0fbbdea400d2867e5693da42bd1fc /drivers/mux/Kconfig | |
| parent | mux: minimal mux subsystem (diff) | |
| download | linux-dev-2c089f08e0de2a784106272c6454ce389fe12376.tar.xz linux-dev-2c089f08e0de2a784106272c6454ce389fe12376.zip | |
mux: gpio: add mux controller driver for gpio based multiplexers
The driver builds a single multiplexer controller using a number
of gpio pins. For N pins, there will be 2^N possible multiplexer
states. The GPIO pins can be connected (by the hardware) to several
multiplexers, which in that case will be operated in parallel.
Reviewed-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mux/Kconfig')
| -rw-r--r-- | drivers/mux/Kconfig | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/mux/Kconfig b/drivers/mux/Kconfig index 23ab2cde83b1..738670aaecb7 100644 --- a/drivers/mux/Kconfig +++ b/drivers/mux/Kconfig @@ -14,3 +14,21 @@ menuconfig MULTIPLEXER To compile the subsystem as a module, choose M here: the module will be called mux-core. + +if MULTIPLEXER + +config MUX_GPIO + tristate "GPIO-controlled Multiplexer" + depends on GPIOLIB || COMPILE_TEST + help + GPIO-controlled Multiplexer controller. + + The driver builds a single multiplexer controller using a number + of gpio pins. For N pins, there will be 2^N possible multiplexer + states. The GPIO pins can be connected (by the hardware) to several + multiplexers, which in that case will be operated in parallel. + + To compile the driver as a module, choose M here: the module will + be called mux-gpio. + +endif |