PPS-GPIO

[tllim]

You first need to define the pin in pinctrl section, probably after Vdevice@0 :

Code:

                       my_pps_pin@0 {                                linux,phandle = <0xba>;                                phandle = <0xba>;                                allwinner,pins = "PC8";                                allwinner,function = "gpio_in";                                allwinner,pname = "pps_gpio";                                allwinner,muxsel = <0x0>;                                allwinner,pull = <0x1>;                                allwinner,drive = <0x0>;                                allwinner,data = <0xffffffff>;                        };

Then, you declare the device (again after vdevice@0) :

Code:

               ppsgpio_device@0 {                        compatible = "pps-gpio";                        gpio = <0x30 0x2 0x8 0x0>;                        pinctrl-names = "default";                        pinctrl-0 = <0xba>;                        status = "okay";                };

Then, recompile the dtb (always keep a backup of the original)

thx.   i'll give it a try after the wedding... maybe tomorrow.

Congratulation on the wedding.