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linux usbotg vbus regulator device tree

Question asked by christoph8446 on May 17, 2018
Latest reply on May 20, 2018 by igorpadykov
Branched to a new discussion

Hello,

 

Can you please explain what the device tree Settings below will make? I use the

PAD_KEY_ROW4__GPIO4_IO15 in u-boot to switch on 5v on vbus via IC.

 

Can the USB_OTG_VBUS pin on i.MX6 also provide 5V via the vbus regulator-fixed settings in device tree or where does the Regulator provide it's Output? 

 

 vbus1_regulator: regulator@1 {
     compatible = "regulator-fixed";
     regulator-name = "vbus1_regulator";
     regulator-min-microvolt = <5000000>;
     regulator-max-microvolt = <5000000>;
     gpio = <&gpio4 15 GPIO_ACTIVE_HIGH>;
     enable-active-high;
 };

 

&usbotg {
 /*vbus-supply = <&vbus1_regulator>;*/
 dr_mode = "host";
 status = "okay";
};

 

Thanks!

Chris

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