Merge tag 'usb-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB merge for 3.4-rc1 from Greg KH:
 "Here's the big USB merge for the 3.4-rc1 merge window.

  Lots of gadget driver reworks here, driver updates, xhci changes, some
  new drivers added, usb-serial core reworking to fix some bugs, and
  other various minor things.

  There are some patches touching arch code, but they have all been
  acked by the various arch maintainers."

* tag 'usb-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (302 commits)
  net: qmi_wwan: add support for ZTE MF820D
  USB: option: add ZTE MF820D
  usb: gadget: f_fs: Remove lock is held before freeing checks
  USB: option: make interface blacklist work again
  usb/ub: deprecate & schedule for removal the "Low Performance USB Block" driver
  USB: ohci-pxa27x: add clk_prepare/clk_unprepare calls
  USB: use generic platform driver on ath79
  USB: EHCI: Add a generic platform device driver
  USB: OHCI: Add a generic platform device driver
  USB: ftdi_sio: new PID: LUMEL PD12
  USB: ftdi_sio: add support for FT-X series devices
  USB: serial: mos7840: Fixed MCS7820 device attach problem
  usb: Don't make USB_ARCH_HAS_{XHCI,OHCI,EHCI} depend on USB_SUPPORT.
  usb gadget: fix a section mismatch when compiling g_ffs with CONFIG_USB_FUNCTIONFS_ETH
  USB: ohci-nxp: Remove i2c_write(), use smbus
  USB: ohci-nxp: Support for LPC32xx
  USB: ohci-nxp: Rename symbols from pnx4008 to nxp
  USB: OHCI-HCD: Rename ohci-pnx4008 to ohci-nxp
  usb: gadget: Kconfig: fix typo for 'different'
  usb: dwc3: pci: fix another failure path in dwc3_pci_probe()
  ...

1 files changed, 29 insertions, 10 deletions

diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index ac3d2ee..f42c29b 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -574,6 +574,15 @@ void musb_g_tx(struct musb *musb, u8 epnum)
 
 		if (request->actual == request->length) {
 			musb_g_giveback(musb_ep, request, 0);
+			/*
+			 * In the giveback function the MUSB lock is
+			 * released and acquired after sometime. During
+			 * this time period the INDEX register could get
+			 * changed by the gadget_queue function especially
+			 * on SMP systems. Reselect the INDEX to be sure
+			 * we are reading/modifying the right registers
+			 */
+			musb_ep_select(mbase, epnum);
 			req = musb_ep->desc ? next_request(musb_ep) : NULL;
 			if (!req) {
 				dev_dbg(musb->controller, "%s idle now\n",
@@ -983,6 +992,15 @@ void musb_g_rx(struct musb *musb, u8 epnum)
 		}
 #endif
 		musb_g_giveback(musb_ep, request, 0);
+		/*
+		 * In the giveback function the MUSB lock is
+		 * released and acquired after sometime. During
+		 * this time period the INDEX register could get
+		 * changed by the gadget_queue function especially
+		 * on SMP systems. Reselect the INDEX to be sure
+		 * we are reading/modifying the right registers
+		 */
+		musb_ep_select(mbase, epnum);
 
 		req = next_request(musb_ep);
 		if (!req)
@@ -1624,7 +1642,7 @@ static int musb_gadget_wakeup(struct usb_gadget *gadget)
 		}
 
 		spin_unlock_irqrestore(&musb->lock, flags);
-		otg_start_srp(musb->xceiv);
+		otg_start_srp(musb->xceiv->otg);
 		spin_lock_irqsave(&musb->lock, flags);
 
 		/* Block idling for at least 1s */
@@ -1703,7 +1721,7 @@ static int musb_gadget_vbus_draw(struct usb_gadget *gadget, unsigned mA)
 
 	if (!musb->xceiv->set_power)
 		return -EOPNOTSUPP;
-	return otg_set_power(musb->xceiv, mA);
+	return usb_phy_set_power(musb->xceiv, mA);
 }
 
 static int musb_gadget_pullup(struct usb_gadget *gadget, int is_on)
@@ -1762,7 +1780,7 @@ static void musb_gadget_release(struct device *dev)
 }
 
 
-static void __init
+static void __devinit
 init_peripheral_ep(struct musb *musb, struct musb_ep *ep, u8 epnum, int is_in)
 {
 	struct musb_hw_ep	*hw_ep = musb->endpoints + epnum;
@@ -1799,7 +1817,7 @@ init_peripheral_ep(struct musb *musb, struct musb_ep *ep, u8 epnum, int is_in)
  * Initialize the endpoints exposed to peripheral drivers, with backlinks
  * to the rest of the driver state.
  */
-static inline void __init musb_g_init_endpoints(struct musb *musb)
+static inline void __devinit musb_g_init_endpoints(struct musb *musb)
 {
 	u8			epnum;
 	struct musb_hw_ep	*hw_ep;
@@ -1832,7 +1850,7 @@ static inline void __init musb_g_init_endpoints(struct musb *musb)
 /* called once during driver setup to initialize and link into
  * the driver model; memory is zeroed.
  */
-int __init musb_gadget_setup(struct musb *musb)
+int __devinit musb_gadget_setup(struct musb *musb)
 {
 	int status;
 
@@ -1898,6 +1916,7 @@ static int musb_gadget_start(struct usb_gadget *g,
 		struct usb_gadget_driver *driver)
 {
 	struct musb		*musb = gadget_to_musb(g);
+	struct usb_otg		*otg = musb->xceiv->otg;
 	unsigned long		flags;
 	int			retval = -EINVAL;
 
@@ -1914,7 +1933,7 @@ static int musb_gadget_start(struct usb_gadget *g,
 	spin_lock_irqsave(&musb->lock, flags);
 	musb->is_active = 1;
 
-	otg_set_peripheral(musb->xceiv, &musb->g);
+	otg_set_peripheral(otg, &musb->g);
 	musb->xceiv->state = OTG_STATE_B_IDLE;
 
 	/*
@@ -1938,15 +1957,15 @@ static int musb_gadget_start(struct usb_gadget *g,
 		 * handles power budgeting ... this way also
 		 * ensures HdrcStart is indirectly called.
 		 */
-		retval = usb_add_hcd(musb_to_hcd(musb), -1, 0);
+		retval = usb_add_hcd(musb_to_hcd(musb), 0, 0);
 		if (retval < 0) {
 			dev_dbg(musb->controller, "add_hcd failed, %d\n", retval);
 			goto err2;
 		}
 
 		if ((musb->xceiv->last_event == USB_EVENT_ID)
-					&& musb->xceiv->set_vbus)
-			otg_set_vbus(musb->xceiv, 1);
+					&& otg->set_vbus)
+			otg_set_vbus(otg, 1);
 
 		hcd->self.uses_pio_for_control = 1;
 	}
@@ -2028,7 +2047,7 @@ static int musb_gadget_stop(struct usb_gadget *g,
 
 	musb->xceiv->state = OTG_STATE_UNDEFINED;
 	stop_activity(musb, driver);
-	otg_set_peripheral(musb->xceiv, NULL);
+	otg_set_peripheral(musb->xceiv->otg, NULL);
 
 	dev_dbg(musb->controller, "unregistering driver %s\n", driver->function);