On Mon, 2018-01-15 at 09:59 -0600, Andrew Jeffery wrote:

quoted

+             uhci: usb at 1e6b0000 {
+                     compatible = "aspeed,ast2400-uhci", "generic-uhci";
+                     reg = <0x1e6b0000 0x100>;
+                     interrupts = <14>;
+                     #ports = <3>;

I tried to find the documentation for the #ports property, but it seems
to not exist. Couldn't find any users either, but maybe I didn't look
broadly enough. It is tested for in drivers/usb/host/uhci-platform.c
though, so I guess it's functional.

I added it to uhci-platform back when that was merged but forgot to
update the binding. I'll send a separate patch for that.

Cheers,
Ben.