I have add user dtbo with "armbian-add-overlay rk3308-w1-gpio.dts" but it's NOT work.Some message is shown as below:

pi@Pi-S:/boot/overlay-user$ dmesg | grep gpio
[    0.063257] OF: /onewire@0: could not get #gpio-cells for /usb@ff400000
[    0.096538] rockchip-gpio ff220000.gpio: probed /pinctrl/gpio@ff220000
[    0.097838] rockchip-gpio ff230000.gpio: probed /pinctrl/gpio@ff230000
[    0.099097] rockchip-gpio ff240000.gpio: probed /pinctrl/gpio@ff240000
[    0.100300] rockchip-gpio ff250000.gpio: probed /pinctrl/gpio@ff250000
[    0.101462] rockchip-gpio ff260000.gpio: probed /pinctrl/gpio@ff260000
[    8.818566] gpio-17 (onewire@0): enforced open drain please flag it properly in DT/ACPI DSDT/board file
[    8.818683] OF: /onewire@0: could not get #gpio-cells for /usb@ff400000
[    8.818731] w1-gpio onewire@0: gpio_request_one (ext_pullup_enable_pin) failed
[    8.818742] w1-gpio: probe of onewire@0 failed with error -22
[    8.872897] rk3308-acodec ff560000.acodec: Don't need hp-ctl gpio
[    8.872955] rk3308-acodec ff560000.acodec: Don't need spk-ctl gpio
[    8.872984] rk3308-acodec ff560000.acodec: Don't need pa-drv gpio
[    8.873096] rk3308-acodec ff560000.acodec: Don't need micbias-en gpio

What should I do to ?

Hi,

 

Did you revolve this issue? I have the exact same problem…

 

Edited May 6, 20233 yr by Nerdworks

I built the following DTS to make onewire to work

 

/dts-v1/;
/plugin/;

/ {
    compatible = "rockchip,rk3308";

    fragment@0 {
        target-path = "/";
        __overlay__ {

            w1: onewire@0 {
                compatible = "w1-gpio";
                pinctrl-names = "default";
                gpios = <&gpio0 15 0>; // GPIO0_B7
                status = "okay";
            };
        };
    };
};

 

Thank you!Thanks for your help,kolsi!