@librecomputer Thank you for the suggestion. This version:
/*
* Overlay to enable PPS on GPIOAO_6
*/
/dts-v1/;
/plugin/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/gpio/meson-gxl-gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/meson-gic.h>
/ {
compatible = "libretech,cc", "amlogic,s905x", "amlogic,meson-gxl";
fragment@0 {
target-path = "/";
__overlay__ {
pps@0 {
compatible = "pps-gpio";
gpios = <&gpio_ao GPIOAO_6 GPIO_ACTIVE_HIGH>;
};
};
};
};
After make && sudo make install && ldto merge pps-new and reboot I get this in my dmesg:
jeff@potato:~/git/libretech-wiring-tool/libre-computer/aml-s905x-cc/dt$ dmesg |grep pps
[ 0.664522] pps_core: LinuxPPS API ver. 1 registered
[ 0.664536] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 8.085724] pps-gpio pps@0: failed to map GPIO to IRQ: -6
[ 8.085744] pps-gpio: probe of pps@0 failed with error -22
jeff@potato:~/git/libretech-wiring-tool/libre-computer/aml-s905x-cc/dt$
What is the proper way to assign an IRQ to a GPIO pin on this board?