On Tue, Mar 10, 2026 at 7:20 PM Jimmy Hon [off-list ref] wrote:

<snip>

quoted

+
+       vcc5v0_otg: regulator-vcc5v0-otg {
+               compatible = "regulator-fixed";
+               enable-active-high;
+               gpios = <&gpio0 RK_PC4 GPIO_ACTIVE_HIGH>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&vcc5v0_otg_en>;
+               regulator-always-on;
+               regulator-boot-on;

regulator-always-on and regulator-boot-on does not seem right.

Why were these added? The vendor did not have them.
https://github.com/orangepi-xunlong/linux-orangepi/blob/232ed4b97b65da2b7b647c4e3c496f8594b9f3f1/arch/arm64/boot/dts/rockchip/rk3588s-orangepi-5-pro.dts#L216-L226

Was this mistakenly taken from the regulator usb 20 which is powering
the onboard usb2.0 hub?
https://github.com/orangepi-xunlong/linux-orangepi/blob/232ed4b97b65da2b7b647c4e3c496f8594b9f3f1/arch/arm64/boot/dts/rockchip/rk3588s-orangepi-5-pro.dts#L111-L119

It may have been a missreading of the schematic, but it was added to
get power to the USB3 port. before I added it devices plugged into the
USB 3 port would not power on

Dennis

quoted

+               regulator-max-microvolt = <5000000>;
+               regulator-min-microvolt = <5000000>;
+               regulator-name = "vcc5v0_otg";
+               vin-supply = <&vcc5v0_sys>;
+       };

<snip>


Jimmy