Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android

8 files changed, 88 insertions, 85 deletions

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 4d77745f439f..96849e2e7435 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1708,6 +1708,7 @@ static const struct usb_device_id acm_ids[] = {
 	{ USB_DEVICE(0x20df, 0x0001), /* Simtec Electronics Entropy Key */
 	.driver_info = QUIRK_CONTROL_LINE_STATE, },
 	{ USB_DEVICE(0x2184, 0x001c) },	/* GW Instek AFG-2225 */
+	{ USB_DEVICE(0x2184, 0x0036) },	/* GW Instek AFG-125 */
 	{ USB_DEVICE(0x22b8, 0x6425), /* Motorola MOTOMAGX phones */
 	},
 	/* Motorola H24 HSPA module: */
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index bcc1e1b729ad..496d6a558793 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -101,6 +101,8 @@ EXPORT_SYMBOL_GPL(ehci_cf_port_reset_rwsem);
 
 static void hub_release(struct kref *kref);
 static int usb_reset_and_verify_device(struct usb_device *udev);
+static void hub_usb3_port_prepare_disable(struct usb_hub *hub,
+					  struct usb_port *port_dev);
 
 static inline char *portspeed(struct usb_hub *hub, int portstatus)
 {
@@ -883,82 +885,28 @@ static int hub_set_port_link_state(struct usb_hub *hub, int port1,
 }
 
 /*
- * If USB 3.0 ports are placed into the Disabled state, they will no longer
- * detect any device connects or disconnects.  This is generally not what the
- * USB core wants, since it expects a disabled port to produce a port status
- * change event when a new device connects.
- *
- * Instead, set the link state to Disabled, wait for the link to settle into
- * that state, clear any change bits, and then put the port into the RxDetect
- * state.
+ * USB-3 does not have a similar link state as USB-2 that will avoid negotiating
+ * a connection with a plugged-in cable but will signal the host when the cable
+ * is unplugged. Disable remote wake and set link state to U3 for USB-3 devices
  */
-static int hub_usb3_port_disable(struct usb_hub *hub, int port1)
-{
-	int ret;
-	int total_time;
-	u16 portchange, portstatus;
-
-	if (!hub_is_superspeed(hub->hdev))
-		return -EINVAL;
-
-	ret = hub_port_status(hub, port1, &portstatus, &portchange);
-	if (ret < 0)
-		return ret;
-
-	/*
-	 * USB controller Advanced Micro Devices, Inc. [AMD] FCH USB XHCI
-	 * Controller [1022:7814] will have spurious result making the following
-	 * usb 3.0 device hotplugging route to the 2.0 root hub and recognized
-	 * as high-speed device if we set the usb 3.0 port link state to
-	 * Disabled. Since it's already in USB_SS_PORT_LS_RX_DETECT state, we
-	 * check the state here to avoid the bug.
-	 */
-	if ((portstatus & USB_PORT_STAT_LINK_STATE) ==
-				USB_SS_PORT_LS_RX_DETECT) {
-		dev_dbg(&hub->ports[port1 - 1]->dev,
-			 "Not disabling port; link state is RxDetect\n");
-		return ret;
-	}
-
-	ret = hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_SS_DISABLED);
-	if (ret)
-		return ret;
-
-	/* Wait for the link to enter the disabled state. */
-	for (total_time = 0; ; total_time += HUB_DEBOUNCE_STEP) {
-		ret = hub_port_status(hub, port1, &portstatus, &portchange);
-		if (ret < 0)
-			return ret;
-
-		if ((portstatus & USB_PORT_STAT_LINK_STATE) ==
-				USB_SS_PORT_LS_SS_DISABLED)
-			break;
-		if (total_time >= HUB_DEBOUNCE_TIMEOUT)
-			break;
-		msleep(HUB_DEBOUNCE_STEP);
-	}
-	if (total_time >= HUB_DEBOUNCE_TIMEOUT)
-		dev_warn(&hub->ports[port1 - 1]->dev,
-				"Could not disable after %d ms\n", total_time);
-
-	return hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_RX_DETECT);
-}
-
 static int hub_port_disable(struct usb_hub *hub, int port1, int set_state)
 {
 	struct usb_port *port_dev = hub->ports[port1 - 1];
 	struct usb_device *hdev = hub->hdev;
 	int ret = 0;
 
-	if (port_dev->child && set_state)
-		usb_set_device_state(port_dev->child, USB_STATE_NOTATTACHED);
 	if (!hub->error) {
-		if (hub_is_superspeed(hub->hdev))
-			ret = hub_usb3_port_disable(hub, port1);
-		else
+		if (hub_is_superspeed(hub->hdev)) {
+			hub_usb3_port_prepare_disable(hub, port_dev);
+			ret = hub_set_port_link_state(hub, port_dev->portnum,
+						      USB_SS_PORT_LS_U3);
+		} else {
 			ret = usb_clear_port_feature(hdev, port1,
 					USB_PORT_FEAT_ENABLE);
+		}
 	}
+	if (port_dev->child && set_state)
+		usb_set_device_state(port_dev->child, USB_STATE_NOTATTACHED);
 	if (ret && ret != -ENODEV)
 		dev_err(&port_dev->dev, "cannot disable (err = %d)\n", ret);
 	return ret;
@@ -4073,6 +4021,26 @@ void usb_unlocked_enable_lpm(struct usb_device *udev)
 }
 EXPORT_SYMBOL_GPL(usb_unlocked_enable_lpm);
 
+/* usb3 devices use U3 for disabled, make sure remote wakeup is disabled */
+static void hub_usb3_port_prepare_disable(struct usb_hub *hub,
+					  struct usb_port *port_dev)
+{
+	struct usb_device *udev = port_dev->child;
+	int ret;
+
+	if (udev && udev->port_is_suspended && udev->do_remote_wakeup) {
+		ret = hub_set_port_link_state(hub, port_dev->portnum,
+					      USB_SS_PORT_LS_U0);
+		if (!ret) {
+			msleep(USB_RESUME_TIMEOUT);
+			ret = usb_disable_remote_wakeup(udev);
+		}
+		if (ret)
+			dev_warn(&udev->dev,
+				 "Port disable: can't disable remote wake\n");
+		udev->do_remote_wakeup = 0;
+	}
+}
 
 #else	/* CONFIG_PM */
 
@@ -4080,6 +4048,9 @@ EXPORT_SYMBOL_GPL(usb_unlocked_enable_lpm);
 #define hub_resume		NULL
 #define hub_reset_resume	NULL
 
+static inline void hub_usb3_port_prepare_disable(struct usb_hub *hub,
+						 struct usb_port *port_dev) { }
+
 int usb_disable_lpm(struct usb_device *udev)
 {
 	return 0;
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index ffa2a682c04b..5fa42b4d089a 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -144,11 +144,16 @@ int config_ep_by_speed(struct usb_gadget *g,
 
 ep_found:
 	/* commit results */
-	_ep->maxpacket = usb_endpoint_maxp(chosen_desc);
+	_ep->maxpacket = usb_endpoint_maxp(chosen_desc) & 0x7ff;
 	_ep->desc = chosen_desc;
 	_ep->comp_desc = NULL;
 	_ep->maxburst = 0;
-	_ep->mult = 0;
+	_ep->mult = 1;
+
+	if (g->speed == USB_SPEED_HIGH && (usb_endpoint_xfer_isoc(_ep->desc) ||
+				usb_endpoint_xfer_int(_ep->desc)))
+		_ep->mult = usb_endpoint_maxp(_ep->desc) & 0x7ff;
+
 	if (!want_comp_desc)
 		return 0;
 
@@ -165,7 +170,7 @@ ep_found:
 		switch (usb_endpoint_type(_ep->desc)) {
 		case USB_ENDPOINT_XFER_ISOC:
 			/* mult: bits 1:0 of bmAttributes */
-			_ep->mult = comp_desc->bmAttributes & 0x3;
+			_ep->mult = (comp_desc->bmAttributes & 0x3) + 1;
 		case USB_ENDPOINT_XFER_BULK:
 		case USB_ENDPOINT_XFER_INT:
 			_ep->maxburst = comp_desc->bMaxBurst + 1;
diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c
index 12628dd36e55..12064d3bddf6 100644
--- a/drivers/usb/gadget/function/f_uac2.c
+++ b/drivers/usb/gadget/function/f_uac2.c
@@ -1079,13 +1079,13 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
 	agdev->out_ep = usb_ep_autoconfig(gadget, &fs_epout_desc);
 	if (!agdev->out_ep) {
 		dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
-		goto err;
+		return ret;
 	}
 
 	agdev->in_ep = usb_ep_autoconfig(gadget, &fs_epin_desc);
 	if (!agdev->in_ep) {
 		dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
-		goto err;
+		return ret;
 	}
 
 	uac2->p_prm.uac2 = uac2;
@@ -1102,7 +1102,7 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
 
 	ret = usb_assign_descriptors(fn, fs_audio_desc, hs_audio_desc, NULL);
 	if (ret)
-		goto err;
+		return ret;
 
 	prm = &agdev->uac2.c_prm;
 	prm->max_psize = hs_epout_desc.wMaxPacketSize;
@@ -1117,19 +1117,19 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
 	prm->rbuf = kzalloc(prm->max_psize * USB_XFERS, GFP_KERNEL);
 	if (!prm->rbuf) {
 		prm->max_psize = 0;
-		goto err_free_descs;
+		goto err;
 	}
 
 	ret = alsa_uac2_init(agdev);
 	if (ret)
-		goto err_free_descs;
+		goto err;
 	return 0;
 
-err_free_descs:
-	usb_free_all_descriptors(fn);
 err:
 	kfree(agdev->uac2.p_prm.rbuf);
 	kfree(agdev->uac2.c_prm.rbuf);
+err_free_descs:
+	usb_free_all_descriptors(fn);
 	return -EINVAL;
 }
 
diff --git a/drivers/usb/gadget/function/uvc_video.c b/drivers/usb/gadget/function/uvc_video.c
index 3d0d5d94a62f..0f01c04d7cbd 100644
--- a/drivers/usb/gadget/function/uvc_video.c
+++ b/drivers/usb/gadget/function/uvc_video.c
@@ -243,7 +243,7 @@ uvc_video_alloc_requests(struct uvc_video *video)
 
 	req_size = video->ep->maxpacket
 		 * max_t(unsigned int, video->ep->maxburst, 1)
-		 * (video->ep->mult + 1);
+		 * (video->ep->mult);
 
 	for (i = 0; i < UVC_NUM_REQUESTS; ++i) {
 		video->req_buffer[i] = kmalloc(req_size, GFP_KERNEL);
diff --git a/drivers/usb/host/uhci-pci.c b/drivers/usb/host/uhci-pci.c
index 940304c33224..02260cfdedb1 100644
--- a/drivers/usb/host/uhci-pci.c
+++ b/drivers/usb/host/uhci-pci.c
@@ -129,6 +129,10 @@ static int uhci_pci_init(struct usb_hcd *hcd)
 	if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_HP)
 		uhci->wait_for_hp = 1;
 
+	/* Intel controllers use non-PME wakeup signalling */
+	if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_INTEL)
+		device_set_run_wake(uhci_dev(uhci), 1);
+
 	/* Set up pointers to PCI-specific functions */
 	uhci->reset_hc = uhci_pci_reset_hc;
 	uhci->check_and_reset_hc = uhci_pci_check_and_reset_hc;
diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c
index e020ad28a00c..53c90131764d 100644
--- a/drivers/usb/serial/kl5kusb105.c
+++ b/drivers/usb/serial/kl5kusb105.c
@@ -296,7 +296,7 @@ static int  klsi_105_open(struct tty_struct *tty, struct usb_serial_port *port)
 	rc = usb_serial_generic_open(tty, port);
 	if (rc) {
 		retval = rc;
-		goto exit;
+		goto err_free_cfg;
 	}
 
 	rc = usb_control_msg(port->serial->dev,
@@ -315,17 +315,32 @@ static int  klsi_105_open(struct tty_struct *tty, struct usb_serial_port *port)
 		dev_dbg(&port->dev, "%s - enabled reading\n", __func__);
 
 	rc = klsi_105_get_line_state(port, &line_state);
-	if (rc >= 0) {
-		spin_lock_irqsave(&priv->lock, flags);
-		priv->line_state = line_state;
-		spin_unlock_irqrestore(&priv->lock, flags);
-		dev_dbg(&port->dev, "%s - read line state 0x%lx\n", __func__, line_state);
-		retval = 0;
-	} else
+	if (rc < 0) {
 		retval = rc;
+		goto err_disable_read;
+	}
+
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->line_state = line_state;
+	spin_unlock_irqrestore(&priv->lock, flags);
+	dev_dbg(&port->dev, "%s - read line state 0x%lx\n", __func__,
+			line_state);
+
+	return 0;
 
-exit:
+err_disable_read:
+	usb_control_msg(port->serial->dev,
+			     usb_sndctrlpipe(port->serial->dev, 0),
+			     KL5KUSB105A_SIO_CONFIGURE,
+			     USB_TYPE_VENDOR | USB_DIR_OUT,
+			     KL5KUSB105A_SIO_CONFIGURE_READ_OFF,
+			     0, /* index */
+			     NULL, 0,
+			     KLSI_TIMEOUT);
+	usb_serial_generic_close(port);
+err_free_cfg:
 	kfree(cfg);
+
 	return retval;
 }
 
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 9894e341c6ac..7ce31a4c7e7f 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -268,6 +268,8 @@ static void option_instat_callback(struct urb *urb);
 #define TELIT_PRODUCT_CC864_SINGLE		0x1006
 #define TELIT_PRODUCT_DE910_DUAL		0x1010
 #define TELIT_PRODUCT_UE910_V2			0x1012
+#define TELIT_PRODUCT_LE922_USBCFG1		0x1040
+#define TELIT_PRODUCT_LE922_USBCFG2		0x1041
 #define TELIT_PRODUCT_LE922_USBCFG0		0x1042
 #define TELIT_PRODUCT_LE922_USBCFG3		0x1043
 #define TELIT_PRODUCT_LE922_USBCFG5		0x1045
@@ -1210,6 +1212,10 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UE910_V2) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG0),
 		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG1),
+		.driver_info = (kernel_ulong_t)&telit_le910_blacklist },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG2),
+		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG3),
 		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG5, 0xff),
@@ -1989,6 +1995,7 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d02, 0xff, 0x00, 0x00) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x02, 0x01) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x00, 0x00) },
+	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d04, 0xff) },			/* D-Link DWM-158 */
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e19, 0xff),			/* D-Link DWM-221 B1 */
 	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */