Commit 94337b72 authored Mar 02, 2018 by Baruch Siach Committed by Linus Walleij Mar 02, 2018

gpio: raspberrypi-exp: explain Kconfig dependency



Commit 7ed91505 (gpio: raspberrypi-ext: fix firmware dependency)
fixed the Kconfig dependency to ensure that gpio-raspberrypi-exp is not
built-in when the firmware is a module. But the Kconfig syntax for doing
so is cryptic. Add a comment to make it a little easier.

Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

parent 9a3821c2

drivers/gpio/Kconfig

+2 −0

Original line number	Diff line number	Diff line
		@@ -126,6 +126,8 @@ config GPIO_RASPBERRYPI_EXP
		tristate "Raspberry Pi 3 GPIO Expander"
		default RASPBERRYPI_FIRMWARE
		depends on OF_GPIO
		# Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
		# happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
		depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) \|\| (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
		help
		Turn on GPIO support for the expander on Raspberry Pi 3 boards, using

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