Hi Neil, On Mon, Aug 30, 2021 at 9:45 AM Neil Armstrong <narmstrong@xxxxxxxxxxxx> wrote: > > Hi, > > On 17/08/2021 06:15, Anand Moon wrote: > > Add missing usb phy power node for usb node fix below warning. > > P5V0 regulator supply input voltage range to USB host controller. > > As described in the C1+ schematics, GPIO GPIOAO_5 is used to > > enable input power to USB ports, set it to Active Low. > > > > [ 1.260772] dwc2 c90c0000.usb: Looking up vbus-supply from device tree > > [ 1.260784] dwc2 c90c0000.usb: Looking up vbus-supply property in > > mode /soc/usb@c90c0000 failed > > First of all, DT is not here to fix boot message. Anand mentioned elsewhere that this is a debug/info message > Finally, I looked at the Odroid-C1 schematics and the GPIOAO.BIT5 is an input > to the S805, and the PWREN signal is controlled by the USB Hub so this regulator > should not be added at all. I think there's a misunderstanding because there's two PWREN signals with different meanings. The PWREN signal for the USB host ports is hard-wired and not connected to the SoC at all. The PWREN signal for the Micro-USB port (which Anand is adding here) is controlled by GPIOAO_5. odroid-c1+_rev0.4_20150615.pdf [0] shows it as an input to "USB_OTG" on page 1. "USB_OTG" consists of a power switch and the connector itself as shown on page 28. Personally I think that the change from Anand itself is good. If you feel otherwise then please speak up. As I pointed out three smaller changes I am hoping that Anand will re-send the updated patch anyways. At that point he can also add the changes from your feedback. Best regards, Martin [0] https://dn.odroid.com/S805/Schematics/odroid-c1+_rev0.4_20150615.pdf
