These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 9 insertions, 40 deletions

diff --git a/kernel/drivers/usb/gadget/function/f_uvc.c b/kernel/drivers/usb/gadget/function/f_uvc.c
index cf0df8fbb..29b41b5de 100644
--- a/kernel/drivers/usb/gadget/function/f_uvc.c
+++ b/kernel/drivers/usb/gadget/function/f_uvc.c
@@ -280,7 +280,7 @@ uvc_function_get_alt(struct usb_function *f, unsigned interface)
 	else if (interface != uvc->streaming_intf)
 		return -EINVAL;
 	else
-		return uvc->video.ep->driver_data ? 1 : 0;
+		return uvc->video.ep->enabled ? 1 : 0;
 }
 
 static int
@@ -298,18 +298,14 @@ uvc_function_set_alt(struct usb_function *f, unsigned interface, unsigned alt)
 		if (alt)
 			return -EINVAL;
 
-		if (uvc->control_ep->driver_data) {
-			INFO(cdev, "reset UVC Control\n");
-			usb_ep_disable(uvc->control_ep);
-			uvc->control_ep->driver_data = NULL;
-		}
+		INFO(cdev, "reset UVC Control\n");
+		usb_ep_disable(uvc->control_ep);
 
 		if (!uvc->control_ep->desc)
 			if (config_ep_by_speed(cdev->gadget, f, uvc->control_ep))
 				return -EINVAL;
 
 		usb_ep_enable(uvc->control_ep);
-		uvc->control_ep->driver_data = uvc;
 
 		if (uvc->state == UVC_STATE_DISCONNECTED) {
 			memset(&v4l2_event, 0, sizeof(v4l2_event));
@@ -336,10 +332,8 @@ uvc_function_set_alt(struct usb_function *f, unsigned interface, unsigned alt)
 		if (uvc->state != UVC_STATE_STREAMING)
 			return 0;
 
-		if (uvc->video.ep) {
+		if (uvc->video.ep)
 			usb_ep_disable(uvc->video.ep);
-			uvc->video.ep->driver_data = NULL;
-		}
 
 		memset(&v4l2_event, 0, sizeof(v4l2_event));
 		v4l2_event.type = UVC_EVENT_STREAMOFF;
@@ -355,18 +349,14 @@ uvc_function_set_alt(struct usb_function *f, unsigned interface, unsigned alt)
 		if (!uvc->video.ep)
 			return -EINVAL;
 
-		if (uvc->video.ep->driver_data) {
-			INFO(cdev, "reset UVC\n");
-			usb_ep_disable(uvc->video.ep);
-			uvc->video.ep->driver_data = NULL;
-		}
+		INFO(cdev, "reset UVC\n");
+		usb_ep_disable(uvc->video.ep);
 
 		ret = config_ep_by_speed(f->config->cdev->gadget,
 				&(uvc->func), uvc->video.ep);
 		if (ret)
 			return ret;
 		usb_ep_enable(uvc->video.ep);
-		uvc->video.ep->driver_data = uvc;
 
 		memset(&v4l2_event, 0, sizeof(v4l2_event));
 		v4l2_event.type = UVC_EVENT_STREAMON;
@@ -392,15 +382,8 @@ uvc_function_disable(struct usb_function *f)
 
 	uvc->state = UVC_STATE_DISCONNECTED;
 
-	if (uvc->video.ep->driver_data) {
-		usb_ep_disable(uvc->video.ep);
-		uvc->video.ep->driver_data = NULL;
-	}
-
-	if (uvc->control_ep->driver_data) {
-		usb_ep_disable(uvc->control_ep);
-		uvc->control_ep->driver_data = NULL;
-	}
+	usb_ep_disable(uvc->video.ep);
+	usb_ep_disable(uvc->control_ep);
 }
 
 /* --------------------------------------------------------------------------
@@ -651,7 +634,6 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
 		goto error;
 	}
 	uvc->control_ep = ep;
-	ep->driver_data = uvc;
 
 	if (gadget_is_superspeed(c->cdev->gadget))
 		ep = usb_ep_autoconfig_ss(cdev->gadget, &uvc_ss_streaming_ep,
@@ -666,7 +648,6 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
 		goto error;
 	}
 	uvc->video.ep = ep;
-	ep->driver_data = uvc;
 
 	uvc_fs_streaming_ep.bEndpointAddress = uvc->video.ep->address;
 	uvc_hs_streaming_ep.bEndpointAddress = uvc->video.ep->address;
@@ -733,12 +714,6 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
 	uvc->control_req->complete = uvc_function_ep0_complete;
 	uvc->control_req->context = uvc;
 
-	/* Avoid letting this gadget enumerate until the userspace server is
-	 * active.
-	 */
-	if ((ret = usb_function_deactivate(f)) < 0)
-		goto error;
-
 	if (v4l2_device_register(&cdev->gadget->dev, &uvc->v4l2_dev)) {
 		printk(KERN_INFO "v4l2_device_register failed\n");
 		goto error;
@@ -761,11 +736,6 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
 error:
 	v4l2_device_unregister(&uvc->v4l2_dev);
 
-	if (uvc->control_ep)
-		uvc->control_ep->driver_data = NULL;
-	if (uvc->video.ep)
-		uvc->video.ep->driver_data = NULL;
-
 	if (uvc->control_req)
 		usb_ep_free_request(cdev->gadget->ep0, uvc->control_req);
 	kfree(uvc->control_buf);
@@ -892,8 +862,6 @@ static void uvc_unbind(struct usb_configuration *c, struct usb_function *f)
 
 	video_unregister_device(&uvc->vdev);
 	v4l2_device_unregister(&uvc->v4l2_dev);
-	uvc->control_ep->driver_data = NULL;
-	uvc->video.ep->driver_data = NULL;
 
 	usb_ep_free_request(cdev->gadget->ep0, uvc->control_req);
 	kfree(uvc->control_buf);
@@ -949,6 +917,7 @@ static struct usb_function *uvc_alloc(struct usb_function_instance *fi)
 	uvc->func.disable = uvc_function_disable;
 	uvc->func.setup = uvc_function_setup;
 	uvc->func.free_func = uvc_free;
+	uvc->func.bind_deactivated = true;
 
 	return &uvc->func;
 }