Hi Fabio,
> -----Original Message-----
> From: Fabio Estevam <festevam@xxxxxxxxx>
> Sent: 2020年5月16日 5:12
> To: Jun Li <jun.li@xxxxxxx>
> Cc: Peter Chen <peter.chen@xxxxxxx>; USB list <linux-usb@xxxxxxxxxxxxxxx>
> Subject: usbmisc_imx: charger detection errors
>
> Hi Li Jun,
>
> Since commit 746f316b753a ("usb: chipidea: introduce imx7d USB charger
> detection") in linux-next, the following error log is seen on a imx7s-warp board:
>
> [ 4.919845] usbmisc_imx 30b10200.usbmisc: vbus is error
This indicates the voltage of VBUS pad is below VBUS valid threshold(defaut
is 4.75v), how is vbus connected on your imx7s-warp board? is the vbus connected
from USB connector to vbus pad of imx7s SoC?
Li Jun
> [ 4.925173] usbmisc_imx 30b10200.usbmisc: Error occurs during detection: -22
>
> What is the proper way to address this?
>
> Thanks,
>
> Fabio Estevam
