Revert "usb: gadget: f_uvc: change endpoint allocation in uvc_function_bind()"

This reverts commit 3c5b006f.

gadget_is_{super|dual}speed() API check UDC controller capitblity. It
should pass down highest speed endpoint descriptor to UDC controller. So
UDC controller driver can reserve enough resource at check_config(),
especially mult and maxburst. So UDC driver (such as cdns3) can know need
at least (mult + 1) * (maxburst + 1) * wMaxPacketSize internal memory for
this uvc functions.

Cc:  <stable@vger.kernel.org>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20231224153816.1664687-5-Frank.Li@nxp.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/gadget/function/f_uvc.c

@@ -721,13 +721,29 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
 	}
 	uvc->enable_interrupt_ep = opts->enable_interrupt_ep;
 
+	/*
+	 * gadget_is_{super|dual}speed() API check UDC controller capitblity. It should pass down
+	 * highest speed endpoint descriptor to UDC controller. So UDC controller driver can reserve
+	 * enough resource at check_config(), especially mult and maxburst. So UDC driver (such as
+	 * cdns3) can know need at least (mult + 1) * (maxburst + 1) * wMaxPacketSize internal
+	 * memory for this uvc functions. This is the only straightforward method to resolve the UDC
+	 * resource allocation issue in the current gadget framework.
+	 */
+	if (gadget_is_superspeed(c->cdev->gadget))
+		ep = usb_ep_autoconfig_ss(cdev->gadget, &uvc_ss_streaming_ep,
+					  &uvc_ss_streaming_comp);
+	else if (gadget_is_dualspeed(cdev->gadget))
+		ep = usb_ep_autoconfig(cdev->gadget, &uvc_hs_streaming_ep);
+	else
 		ep = usb_ep_autoconfig(cdev->gadget, &uvc_fs_streaming_ep);
+
 	if (!ep) {
 		uvcg_info(f, "Unable to allocate streaming EP\n");
 		goto error;
 	}
 	uvc->video.ep = ep;
 
+	uvc_fs_streaming_ep.bEndpointAddress = uvc->video.ep->address;
 	uvc_hs_streaming_ep.bEndpointAddress = uvc->video.ep->address;
 	uvc_ss_streaming_ep.bEndpointAddress = uvc->video.ep->address;