Check if the GPIO is valid (or set at all). If no GPIO is set in the
devicetree, a gpiolib related kernel warning + stacktrace is shown during
boot and gpio-export reports GPIOs as exported albeit none really is.
Signed-off-by: Mathias Kresin <dev@kresin.me>
This just copies the patches, configuration and dts files into the
directories hich are used for kernel 4.14.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>