linux/drivers/mux/Kconfig
Jean Delvare 5ccf40288c mux: mmio: drop obsolete dependency on COMPILE_TEST
Since commit 0166dc11be ("of: make CONFIG_OF user selectable"), it
is possible to test-build any driver which depends on OF on any
architecture by explicitly selecting OF. Therefore depending on
COMPILE_TEST as an alternative is no longer needed.

It is actually better to always build such drivers with OF enabled,
so that the test builds are closer to how each driver will actually be
built on its intended target. Building them without OF may not test
much as the compiler will optimize out potentially large parts of the
code. In the worst case, this could even pop false positive warnings.
Dropping COMPILE_TEST here improves the quality of our testing and
avoids wasting time on non-existent issues.

As a minor optimization, this also lets us drop of_match_ptr(), as we
now know what it will resolve to, we might as well save cpp some work.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Peter Rosin <peda@axentia.se>
Link: https://lore.kernel.org/r/bc790b4e-1cb4-4ef5-3da8-9d0e6b613bc7@axentia.se
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-06-01 07:19:51 +01:00

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# SPDX-License-Identifier: GPL-2.0
#
# Multiplexer devices
#
config MULTIPLEXER
tristate
menu "Multiplexer drivers"
depends on MULTIPLEXER
config MUX_ADG792A
tristate "Analog Devices ADG792A/ADG792G Multiplexers"
depends on I2C
help
ADG792A and ADG792G Wide Bandwidth Triple 4:1 Multiplexers
The driver supports both operating the three multiplexers in
parallel and operating them independently.
To compile the driver as a module, choose M here: the module will
be called mux-adg792a.
config MUX_ADGS1408
tristate "Analog Devices ADGS1408/ADGS1409 Multiplexers"
depends on SPI
help
ADGS1408 8:1 multiplexer and ADGS1409 double 4:1 multiplexer
switches.
To compile the driver as a module, choose M here: the module will
be called mux-adgs1408.
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.
config MUX_MMIO
tristate "MMIO/Regmap register bitfield-controlled Multiplexer"
depends on OF
help
MMIO/Regmap register bitfield-controlled Multiplexer controller.
The driver builds multiplexer controllers for bitfields in either
a syscon register or a driver regmap register. For N bit wide
bitfields, there will be 2^N possible multiplexer states.
To compile the driver as a module, choose M here: the module will
be called mux-mmio.
endmenu