From: Linus Walleij Date: Thu, 23 May 2019 06:54:19 +0000 (+0200) Subject: gpio: Update Kconfig text for GPIO_SYSFS X-Git-Tag: Ubuntu-5.13.0-19.19~8202^2~78 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=db9477f8b549b12943f513c18c7b10acd7d97e6e;p=mirror_ubuntu-jammy-kernel.git gpio: Update Kconfig text for GPIO_SYSFS 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. Reviewed-by: Bartosz Golaszewski Signed-off-by: Linus Walleij --- diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index be832eb73627..3d17d40fa635 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -62,16 +62,12 @@ 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