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gpio: sysfs: Enforce character device 

If users select sysfs support they get the character device
as well so that end-users cannot complain that they
"only have sysfs on my system". They should have the
character device at all times.

If someone is in so dire need of stripping out the
character device while still enabling the sysfs ABI they
can very well patch the kernel.

Also only show this obsolete option to expert users.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20201110142724.14760-1-linus.walleij@linaro.org
This commit is contained in:
Linus Walleij 2020-11-10 15:27:24 +01:00
parent 0f2c7af45d
commit 3b4feb2115
1 changed files with 2 additions and 1 deletions
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drivers/gpio/Kconfig
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@ -59,8 +59,9 @@ config DEBUG_GPIO
that are most common when setting up new platforms or boards. that are most common when setting up new platforms or boards.
config GPIO_SYSFS config GPIO_SYSFS
bool "/sys/class/gpio/... (sysfs interface)" bool "/sys/class/gpio/... (sysfs interface)" if EXPERT
depends on SYSFS depends on SYSFS
select GPIO_CDEV # We need to encourage the new ABI
help help
Say Y here to add the legacy sysfs interface for GPIOs. Say Y here to add the legacy sysfs interface for GPIOs.