How works USBC_VBUS_DET

Technical Support
, ,
15

Hello Matthias,

I think yes, with this modifications in my .dts file:

  1. I deleted usbc-det node;
  2. I changed extcon_usbc_det node;
  3. I set usbotg1 as host, deleting also extcon;
  4. I change sodim 137 function.
/ {
    /delete-node/usbc-det;			// usbc-det
};

&extcon_usbc_det {
	compatible = "linux,extcon-usb-gpio";
	debounce = <25>;
	id-gpio = < >;
	pinctrl-names = "default";
};

&usbotg1 {
	dr_mode = "host";
	/delete-property/ extcon;
};

&iomuxc {
    imx6ull-colibri {
        pinctrl_gpio1: gpio1-grp {
            fsl,pins = <
                MX6UL_PAD_SNVS_TAMPER2__GPIO5_IO02	0x3038  /* SODIMM 137 */ /*100kOhm pulldown */
            >;
        };
    };
};

That way I am able to use USBC line as host to read a usb-key without needing an id-detection pin (which is normally sodimm137).