Hi Tom, On Tue, Nov 13, 2018 at 5:08 AM Tom Burkart <t...@aussec.com> wrote: > > This patch changes the GPIO access for the pps-gpio driver from the > integer based API to the descriptor based API. It also adds > documentation for the device tree capture-clear option and > device tree capture-clear extraction. > > The change from integer based GPIO API to the descriptor based API > breaks backward compatibility for the devicetree. This is due to > the descriptor based API appending "-gpio" or "-gpios" (see > Documentation/gpio/base.txt.)
Documentation/devicetree/bindings/gpio/gpio.txt says: "While a non-existent <name> is considered valid for compatibility reasons (resolving to the "gpios" property), it is not allowed for new bindings." This is not a new binding, so there should be no reason to change it. gpiod_get() and friends support this by using the "gpios" property if they are passed a NULL con_id. of_find_gpio() in drivers/gpio/gpiolib-of.c contains the relevant code. regards Philipp
