[Enable 1-wire in kernel 4.9 on BananaPi]

Had no luck with overlay, I tried to change .dtb file and got this:

dmesg |grep w1
[   10.673288] w1-gpio onewire@0: Failed to parse gpio property for data pin (-2)
[   10.673318] w1-gpio: probe of onewire@0 failed with error -2
 

So Please can anyone help me? Any thoughts or suggestions?

[Enable 1-wire in kernel 4.9 on BananaPi]

Hi everybody.

Recenly I've moved to Armbian mainline from Bananian on my Banana pro. 'uname -r' is now saying "BPro 4.14.18-sunxi #24 SMP Fri Feb 9 16:24:32 CET 2018 armv7l GNU/Linux".

I tried to make ds18b20 work but had no luck.

First I've decompiled /boot/dtb/overlay/sun7i-a20-w1-gpio.dtbo, edited dts section to look like this:

        __overlay__ {

            w1_pins {
                pins = "PB6";
                function = "gpio_in";
                linux,phandle = <0x1>;
                phandle = <0x1>;
            };

I connected, data line of sensor to pin 38 and pulled it up by external resistor.

Then I compiled dts to dtbo, replaced original .dtbo file and added "overlays=w1-gpio" string to armbianEnv.txt. What I get after reboot:

root@BPro:~/dtb# cat /sys/kernel/debug/pinctrl/1c20800.pinctrl/pinmux-pins |grep onewire
pin 38 (PB6): onewire@0 (GPIO UNCLAIMED) function gpio_in group PB6
root@BPro:~/dtb# ls /sys/bus/w1/devices/
w1_bus_master1
root@BPro:~/dtb# dmesg |grep w1
 

So sensor doesn't work and what is strange for me, there is no even a word about w1 driver in dmesg. What can be the problem?