Hi Anand, On Mon, Feb 11, 2019 at 4:09 PM Anand Moon <linux.amoon@xxxxxxxxx> wrote: [...] > Can we have other people who can test both the approach for > *vbus-supply* vs *phy-supply* setting. > Then we can conclude on the correct approach. this is a good idea. do we focus on the 4x USB host ports for this test or also on the OTG port? my test-setup so far was: - Odroid-C1+ board revision 0.4 20150615 - the board is powered using the micro USB port - connect an USB thumb drive to one of the USB host ports test-cases: - an "unpatched" (in terms of USB power regulators) kernel - using Anand's phy-supply = <&usb_vbus>; inside the usb1_phy node - using vbus-supply = <&usb_vbus>; inside the usb1 node in all thee scenarios the LED of my thumb drive did not light up and there was nothing in the kernel log. also lsusb -vv didn't show anything. Anand, do you have any other test-case in mind that we need to check? I CC'ed Emiliano because he initially added USB support to meson8b-odroidc1.dts (that was before I got my own Odroid-C1+). He can probably help us test on his board(s) as well. > Honestly I am using power supply from dc jack rather than power via usb otg. I don't have a plug which matches the little DC jack so I'm powering my board using the micro USB connector. Regards Martin