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, 40 insertions, 7 deletions

diff --git a/kernel/drivers/usb/gadget/composite.c b/kernel/drivers/usb/gadget/composite.c
index 58b4657fc..8b14c2a13 100644
--- a/kernel/drivers/usb/gadget/composite.c
+++ b/kernel/drivers/usb/gadget/composite.c
@@ -19,6 +19,7 @@
 #include <linux/utsname.h>
 
 #include <linux/usb/composite.h>
+#include <linux/usb/otg.h>
 #include <asm/unaligned.h>
 
 #include "u_os_desc.h"
@@ -209,6 +210,12 @@ int usb_add_function(struct usb_configuration *config,
 	function->config = config;
 	list_add_tail(&function->list, &config->functions);
 
+	if (function->bind_deactivated) {
+		value = usb_function_deactivate(function);
+		if (value)
+			goto done;
+	}
+
 	/* REVISIT *require* function->bind? */
 	if (function->bind) {
 		value = function->bind(config, function);
@@ -279,7 +286,7 @@ int usb_function_deactivate(struct usb_function *function)
 	spin_lock_irqsave(&cdev->lock, flags);
 
 	if (cdev->deactivations == 0)
-		status = usb_gadget_disconnect(cdev->gadget);
+		status = usb_gadget_deactivate(cdev->gadget);
 	if (status == 0)
 		cdev->deactivations++;
 
@@ -311,7 +318,7 @@ int usb_function_activate(struct usb_function *function)
 	else {
 		cdev->deactivations--;
 		if (cdev->deactivations == 0)
-			status = usb_gadget_connect(cdev->gadget);
+			status = usb_gadget_activate(cdev->gadget);
 	}
 
 	spin_unlock_irqrestore(&cdev->lock, flags);
@@ -832,9 +839,7 @@ int usb_add_config(struct usb_composite_dev *cdev,
 		}
 	}
 
-	/* set_alt(), or next bind(), sets up
-	 * ep->driver_data as needed.
-	 */
+	/* set_alt(), or next bind(), sets up ep->claimed as needed */
 	usb_ep_autoconfig_reset(cdev->gadget);
 
 done:
@@ -896,7 +901,7 @@ void usb_remove_config(struct usb_composite_dev *cdev,
 
 /* We support strings in multiple languages ... string descriptor zero
  * says which languages are supported.  The typical case will be that
- * only one language (probably English) is used, with I18N handled on
+ * only one language (probably English) is used, with i18n handled on
  * the host side.
  */
 
@@ -949,7 +954,7 @@ static int get_string(struct usb_composite_dev *cdev,
 	struct usb_function		*f;
 	int				len;
 
-	/* Yes, not only is USB's I18N support probably more than most
+	/* Yes, not only is USB's i18n support probably more than most
 	 * folk will ever care about ... also, it's all supported here.
 	 * (Except for UTF8 support for Unicode's "Astral Planes".)
 	 */
@@ -1499,6 +1504,8 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 				} else {
 					cdev->desc.bcdUSB = cpu_to_le16(0x0210);
 				}
+			} else {
+				cdev->desc.bcdUSB = cpu_to_le16(0x0200);
 			}
 
 			value = min(w_length, (u16) sizeof cdev->desc);
@@ -1534,6 +1541,32 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 				value = min(w_length, (u16) value);
 			}
 			break;
+		case USB_DT_OTG:
+			if (gadget_is_otg(gadget)) {
+				struct usb_configuration *config;
+				int otg_desc_len = 0;
+
+				if (cdev->config)
+					config = cdev->config;
+				else
+					config = list_first_entry(
+							&cdev->configs,
+						struct usb_configuration, list);
+				if (!config)
+					goto done;
+
+				if (gadget->otg_caps &&
+					(gadget->otg_caps->otg_rev >= 0x0200))
+					otg_desc_len += sizeof(
+						struct usb_otg20_descriptor);
+				else
+					otg_desc_len += sizeof(
+						struct usb_otg_descriptor);
+
+				value = min_t(int, w_length, otg_desc_len);
+				memcpy(req->buf, config->descriptors[0], value);
+			}
+			break;
 		}
 		break;