e556756a63
This driver causes the following randconfig build error:
drivers/i2c/muxes/i2c-mux-pca954x.c: In function ‘pca954x_probe’:
drivers/i2c/muxes/i2c-mux-pca954x.c:204:2: error: implicit declaration
of function ‘devm_gpiod_get’ [-Werror=implicit-function-declaration]
gpio = devm_gpiod_get(&client->dev, "reset");
^
drivers/i2c/muxes/i2c-mux-pca954x.c:204:7: warning: assignment makes
pointer from integer without a cast [enabled by default]
gpio = devm_gpiod_get(&client->dev, "reset");
^
drivers/i2c/muxes/i2c-mux-pca954x.c:206:3: error: implicit declaration
of function ‘gpiod_direction_output’
[-Werror=implicit-function-declaration]
gpiod_direction_output(gpio, 0);
^
cc1: some warnings being treated as errors
make[3]: *** [drivers/i2c/muxes/i2c-mux-pca954x.o] Error 1
This is because it is getting compiled without gpiolib, so
introduce an explicit dependency.
Reported-by: Jim Davis <jim.epost@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
63 lines
1.9 KiB
Text
63 lines
1.9 KiB
Text
#
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# Multiplexer I2C chip drivers configuration
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#
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menu "Multiplexer I2C Chip support"
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depends on I2C_MUX
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config I2C_ARB_GPIO_CHALLENGE
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tristate "GPIO-based I2C arbitration"
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depends on GPIOLIB && OF
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help
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If you say yes to this option, support will be included for an
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I2C multimaster arbitration scheme using GPIOs and a challenge &
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response mechanism where masters have to claim the bus by asserting
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a GPIO.
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This driver can also be built as a module. If so, the module
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will be called i2c-arb-gpio-challenge.
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config I2C_MUX_GPIO
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tristate "GPIO-based I2C multiplexer"
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depends on GPIOLIB
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help
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If you say yes to this option, support will be included for a
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GPIO based I2C multiplexer. This driver provides access to
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I2C busses connected through a MUX, which is controlled
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through GPIO pins.
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This driver can also be built as a module. If so, the module
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will be called i2c-mux-gpio.
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config I2C_MUX_PCA9541
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tristate "NXP PCA9541 I2C Master Selector"
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help
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If you say yes here you get support for the NXP PCA9541
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I2C Master Selector.
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This driver can also be built as a module. If so, the module
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will be called i2c-mux-pca9541.
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config I2C_MUX_PCA954x
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tristate "Philips PCA954x I2C Mux/switches"
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depends on GPIOLIB
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help
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If you say yes here you get support for the Philips PCA954x
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I2C mux/switch devices.
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This driver can also be built as a module. If so, the module
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will be called i2c-mux-pca954x.
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config I2C_MUX_PINCTRL
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tristate "pinctrl-based I2C multiplexer"
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depends on PINCTRL
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help
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If you say yes to this option, support will be included for an I2C
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multiplexer that uses the pinctrl subsystem, i.e. pin multiplexing.
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This is useful for SoCs whose I2C module's signals can be routed to
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different sets of pins at run-time.
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This driver can also be built as a module. If so, the module will be
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called pinctrl-i2cmux.
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endmenu
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