czw., 23 maj 2019 o 08:56 Linus Walleij <linus.walleij@xxxxxxxxxx> napisał(a): > > This feature is deprecated, it is helpful to inform users about > this. I'm resisting the temptation to add "depends on BROKEN" > to this, but saving that for later. > > Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx> > --- > drivers/gpio/Kconfig | 14 +++++--------- > 1 file changed, 5 insertions(+), 9 deletions(-) > > diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig > index 8023d03ec362..a10b821e1d92 100644 > --- a/drivers/gpio/Kconfig > +++ b/drivers/gpio/Kconfig > @@ -61,16 +61,12 @@ config GPIO_SYSFS > bool "/sys/class/gpio/... (sysfs interface)" > depends on SYSFS > help > - Say Y here to add a sysfs interface for GPIOs. > + Say Y here to add the legacy sysfs interface for GPIOs. > > - This is mostly useful to work around omissions in a system's > - kernel support. Those are common in custom and semicustom > - hardware assembled using standard kernels with a minimum of > - custom patches. In those cases, userspace code may import > - a given GPIO from the kernel, if no kernel driver requested it. > - > - Kernel drivers may also request that a particular GPIO be > - exported to userspace; this can be useful when debugging. > + This ABI is deprecated. If you want to use GPIO from userspace, > + use the character device /dev/gpiochipN with the appropriate > + ioctl() operations instead. The character device is always > + available. > > config GPIO_GENERIC > depends on HAS_IOMEM # Only for IOMEM drivers > -- > 2.20.1 > Reviewed-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx> I strongly believe that in a couple releases we should WARN_ONCE() when sysfs is used. :) Bart