On Tue, Aug 21, 2018 at 8:56 AM Loic Poulain <loic.poulain@xxxxxxxxxx> wrote:
>
> The Dragonboard-410c is able to act either as USB Host or Device.
> The role can be determined at runtime via the USB_HS_ID pin which is
> derived from the micro-usb port VBUS pin.
>
> In Host role, SoC USB D+/D- are routed to the onboard USB 2.0 HUB.
> In Device role, SoC USB D+/D- are routed to the USB 2.0 micro B port.
> Routing is selected via USB_SW_SEL_PM gpio.
>
> In device role USB HUB can be held in reset.
>
> Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxx>
> ---
> @@ -512,7 +513,7 @@
>
> usb_id: usb-id {
> compatible = "linux,extcon-usb-gpio";
> - vbus-gpio = <&msmgpio 121 GPIO_ACTIVE_HIGH>;
> + id-gpio = <&msmgpio 121 GPIO_ACTIVE_HIGH>;
The GPIO has magically changed from being connected to Vbus to ID? The
extcon binding is crap anyways...
Ideally, it would be nice if this was moved to the usb connector binding.
Rob
