Add a build option to allow the removal of the CDEV v1 ABI.
Suggested-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
 
          If unsure, say Y.
 
+config GPIO_CDEV_V1
+       bool "Support GPIO ABI Version 1"
+       default y
+       depends on GPIO_CDEV
+       help
+         Say Y here to support version 1 of the GPIO CDEV ABI.
+
+         This ABI version is deprecated.
+         Please use the latest ABI for new developments.
+
+         If unsure, say Y.
+
 config GPIO_GENERIC
        depends on HAS_IOMEM # Only for IOMEM drivers
        tristate