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aca4e68acf
COMPILE_TEST makes no sense when I2C is disabled, as the driver cannot compile
in that configuration:
drivers/mux/mux-adg792a.c: In function 'adg792a_write_cmd':
drivers/mux/mux-adg792a.c:34:9: error: implicit declaration of function 'i2c_smbus_write_byte_data'; did you mean 'i2c_set_clientdata'? [-Werror=implicit-function-declaration]
drivers/mux/mux-adg792a.o: In function `adg792a_driver_init':
mux-adg792a.c:(.init.text+0x14): undefined reference to `i2c_register_driver'
drivers/mux/mux-adg792a.o: In function `adg792a_probe':
mux-adg792a.c:(.text.adg792a_probe+0x94): undefined reference to `i2c_smbus_write_byte_data'
drivers/mux/mux-adg792a.o: In function `adg792a_set':
mux-adg792a.c:(.text.adg792a_set+0x80): undefined reference to `i2c_smbus_write_byte_data'
Fixes: afda08c4ca ("mux: adg792a: add mux controller driver for ADG792A/G")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
59 lines
1.8 KiB
Text
59 lines
1.8 KiB
Text
#
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# Multiplexer devices
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#
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menuconfig MULTIPLEXER
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tristate "Multiplexer subsystem"
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help
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Multiplexer controller subsystem. Multiplexers are used in a
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variety of settings, and this subsystem abstracts their use
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so that the rest of the kernel sees a common interface. When
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multiple parallel multiplexers are controlled by one single
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multiplexer controller, this subsystem also coordinates the
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multiplexer accesses.
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To compile the subsystem as a module, choose M here: the module will
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be called mux-core.
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if MULTIPLEXER
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config MUX_ADG792A
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tristate "Analog Devices ADG792A/ADG792G Multiplexers"
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depends on I2C
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help
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ADG792A and ADG792G Wide Bandwidth Triple 4:1 Multiplexers
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The driver supports both operating the three multiplexers in
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parallel and operating them independently.
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To compile the driver as a module, choose M here: the module will
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be called mux-adg792a.
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config MUX_GPIO
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tristate "GPIO-controlled Multiplexer"
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depends on GPIOLIB || COMPILE_TEST
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help
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GPIO-controlled Multiplexer controller.
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The driver builds a single multiplexer controller using a number
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of gpio pins. For N pins, there will be 2^N possible multiplexer
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states. The GPIO pins can be connected (by the hardware) to several
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multiplexers, which in that case will be operated in parallel.
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To compile the driver as a module, choose M here: the module will
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be called mux-gpio.
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config MUX_MMIO
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tristate "MMIO register bitfield-controlled Multiplexer"
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depends on (OF && MFD_SYSCON) || COMPILE_TEST
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help
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MMIO register bitfield-controlled Multiplexer controller.
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The driver builds multiplexer controllers for bitfields in a syscon
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register. For N bit wide bitfields, there will be 2^N possible
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multiplexer states.
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To compile the driver as a module, choose M here: the module will
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be called mux-mmio.
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endif
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