mirror of
https://github.com/torvalds/linux.git
synced 2024-11-13 23:51:39 +00:00
5ccf40288c
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>
62 lines
1.7 KiB
Plaintext
62 lines
1.7 KiB
Plaintext
# 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
|