Merge tag 'usb-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here is the big USB patchset for 4.6-rc1.

  The normal mess is here, gadget and xhci fixes and updates, and lots
  of other driver updates and cleanups as well.  Full details are in the
  shortlog.

  All have been in linux-next for a while with no reported issues"

* tag 'usb-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (266 commits)
  USB: core: let USB device know device node
  usb: devio: Add ioctl to disallow detaching kernel USB drivers.
  usb: gadget: f_acm: Fix configfs attr name
  usb: udc: lpc32xx: remove USB PLL and USB OTG clock management
  usb: udc: lpc32xx: remove direct access to clock controller registers
  usb: udc: lpc32xx: switch to clock prepare/unprepare model
  usb: renesas_usbhs: gadget: fix giveback status code in usbhsg_pipe_disable()
  usb: gadget: renesas_usb3: Use ARCH_RENESAS
  usb: dwc2: Fix issues in dwc2_complete_non_isoc_xfer_ddma()
  usb: dwc2: Add support for Lantiq ARX and XRX SoCs
  usb: phy: generic: Handle late registration of gadget
  usb: gadget: bdc_udc: fix race condition in bdc_udc_exit()
  usb: musb: core: added missing const qualifier to musb_hdrc_platform_data::config
  usb: dwc2: Move host-specific core functions into hcd.c
  usb: dwc2: Move register save and restore functions
  usb: dwc2: Use kmem_cache_free()
  usb: dwc2: host: If using uframe scheduler, end splits better
  usb: dwc2: host: Totally redo the microframe scheduler
  usb: dwc2: host: Properly set even/odd frame
  usb: dwc2: host: Add dwc2_hcd_get_future_frame_number() call
  ...

11 files changed, 71 insertions, 14 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index 6d6f1fec092f..2d0e6e541d52 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -958,6 +958,11 @@ static inline void device_lock(struct device *dev)
 	mutex_lock(&dev->mutex);
 }
 
+static inline int device_lock_interruptible(struct device *dev)
+{
+	return mutex_lock_interruptible(&dev->mutex);
+}
+
 static inline int device_trylock(struct device *dev)
 {
 	return mutex_trylock(&dev->mutex);
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 89533ba38691..6a9a0c28415d 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -50,6 +50,7 @@ struct ep_device;
  * struct usb_host_endpoint - host-side endpoint descriptor and queue
  * @desc: descriptor for this endpoint, wMaxPacketSize in native byteorder
  * @ss_ep_comp: SuperSpeed companion descriptor for this endpoint
+ * @ssp_isoc_ep_comp: SuperSpeedPlus isoc companion descriptor for this endpoint
  * @urb_list: urbs queued to this endpoint; maintained by usbcore
  * @hcpriv: for use by HCD; typically holds hardware dma queue head (QH)
  *	with one or more transfer descriptors (TDs) per urb
@@ -65,6 +66,7 @@ struct ep_device;
 struct usb_host_endpoint {
 	struct usb_endpoint_descriptor		desc;
 	struct usb_ss_ep_comp_descriptor	ss_ep_comp;
+	struct usb_ssp_isoc_ep_comp_descriptor	ssp_isoc_ep_comp;
 	struct list_head		urb_list;
 	void				*hcpriv;
 	struct ep_device		*ep_dev;	/* For sysfs info */
@@ -330,6 +332,7 @@ struct usb_host_bos {
 	struct usb_ss_cap_descriptor	*ss_cap;
 	struct usb_ssp_cap_descriptor	*ssp_cap;
 	struct usb_ss_container_id_descriptor	*ss_id;
+	struct usb_ptm_cap_descriptor	*ptm_cap;
 };
 
 int __usb_get_extra_descriptor(char *buffer, unsigned size,
@@ -375,7 +378,6 @@ struct usb_bus {
 	struct usb_devmap devmap;	/* device address allocation map */
 	struct usb_device *root_hub;	/* Root hub */
 	struct usb_bus *hs_companion;	/* Companion EHCI bus, if any */
-	struct list_head bus_list;	/* list of busses */
 
 	struct mutex usb_address0_mutex; /* unaddressed device mutex */
 
@@ -642,9 +644,10 @@ extern struct usb_device *usb_hub_find_child(struct usb_device *hdev,
 		if (!child) continue; else
 
 /* USB device locking */
-#define usb_lock_device(udev)		device_lock(&(udev)->dev)
-#define usb_unlock_device(udev)		device_unlock(&(udev)->dev)
-#define usb_trylock_device(udev)	device_trylock(&(udev)->dev)
+#define usb_lock_device(udev)			device_lock(&(udev)->dev)
+#define usb_unlock_device(udev)			device_unlock(&(udev)->dev)
+#define usb_lock_device_interruptible(udev)	device_lock_interruptible(&(udev)->dev)
+#define usb_trylock_device(udev)		device_trylock(&(udev)->dev)
 extern int usb_lock_device_for_reset(struct usb_device *udev,
 				     const struct usb_interface *iface);
 
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 1074b8921a5d..2b81b24eb5aa 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -126,6 +126,10 @@ struct usb_os_desc_table {
  *	string identifiers assigned during @bind(). If this
  *	pointer is null after initiation, the function will not
  *	be available at super speed.
+ * @ssp_descriptors: Table of super speed plus descriptors, using
+ *	interface and string identifiers assigned during @bind(). If
+ *	this pointer is null after initiation, the function will not
+ *	be available at super speed plus.
  * @config: assigned when @usb_add_function() is called; this is the
  *	configuration with which this function is associated.
  * @os_desc_table: Table of (interface id, os descriptors) pairs. The function
@@ -186,6 +190,7 @@ struct usb_function {
 	struct usb_descriptor_header	**fs_descriptors;
 	struct usb_descriptor_header	**hs_descriptors;
 	struct usb_descriptor_header	**ss_descriptors;
+	struct usb_descriptor_header	**ssp_descriptors;
 
 	struct usb_configuration	*config;
 
@@ -317,6 +322,7 @@ struct usb_configuration {
 	unsigned		superspeed:1;
 	unsigned		highspeed:1;
 	unsigned		fullspeed:1;
+	unsigned		superspeed_plus:1;
 	struct usb_function	*interface[MAX_CONFIG_INTERFACES];
 };
 
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index d82d0068872b..5d4e151c49bf 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -595,6 +595,10 @@ struct usb_gadget_ops {
  *	only supports HNP on a different root port.
  * @b_hnp_enable: OTG device feature flag, indicating that the A-Host
  *	enabled HNP support.
+ * @hnp_polling_support: OTG device feature flag, indicating if the OTG device
+ *	in peripheral mode can support HNP polling.
+ * @host_request_flag: OTG device feature flag, indicating if A-Peripheral
+ *	or B-Peripheral wants to take host role.
  * @quirk_ep_out_aligned_size: epout requires buffer size to be aligned to
  *	MaxPacketSize.
  * @is_selfpowered: if the gadget is self-powered.
@@ -642,6 +646,8 @@ struct usb_gadget {
 	unsigned			b_hnp_enable:1;
 	unsigned			a_hnp_support:1;
 	unsigned			a_alt_hnp_support:1;
+	unsigned			hnp_polling_support:1;
+	unsigned			host_request_flag:1;
 	unsigned			quirk_ep_out_aligned_size:1;
 	unsigned			quirk_altset_not_supp:1;
 	unsigned			quirk_stall_not_supp:1;
@@ -729,6 +735,16 @@ static inline int gadget_is_superspeed(struct usb_gadget *g)
 }
 
 /**
+ * gadget_is_superspeed_plus() - return true if the hardware handles
+ *	superspeed plus
+ * @g: controller that might support superspeed plus
+ */
+static inline int gadget_is_superspeed_plus(struct usb_gadget *g)
+{
+	return g->max_speed >= USB_SPEED_SUPER_PLUS;
+}
+
+/**
  * gadget_is_otg - return true iff the hardware is OTG-ready
  * @g: controller that might have a Mini-AB connector
  *
@@ -1126,6 +1142,7 @@ extern int usb_add_gadget_udc_release(struct device *parent,
 		struct usb_gadget *gadget, void (*release)(struct device *dev));
 extern int usb_add_gadget_udc(struct device *parent, struct usb_gadget *gadget);
 extern void usb_del_gadget_udc(struct usb_gadget *gadget);
+extern char *usb_get_gadget_udc_name(void);
 
 /*-------------------------------------------------------------------------*/
 
@@ -1194,7 +1211,8 @@ struct usb_function;
 int usb_assign_descriptors(struct usb_function *f,
 		struct usb_descriptor_header **fs,
 		struct usb_descriptor_header **hs,
-		struct usb_descriptor_header **ss);
+		struct usb_descriptor_header **ss,
+		struct usb_descriptor_header **ssp);
 void usb_free_all_descriptors(struct usb_function *f);
 
 struct usb_descriptor_header *usb_otg_descriptor_alloc(
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 4dcf8446dbcd..b98f831dcda3 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -23,6 +23,7 @@
 
 #include <linux/rwsem.h>
 #include <linux/interrupt.h>
+#include <linux/idr.h>
 
 #define MAX_TOPO_LEVEL		6
 
@@ -630,8 +631,8 @@ extern void usb_set_device_state(struct usb_device *udev,
 
 /* exported only within usbcore */
 
-extern struct list_head usb_bus_list;
-extern struct mutex usb_bus_list_lock;
+extern struct idr usb_bus_idr;
+extern struct mutex usb_bus_idr_lock;
 extern wait_queue_head_t usb_kill_urb_queue;
 
 
diff --git a/include/linux/usb/msm_hsusb_hw.h b/include/linux/usb/msm_hsusb_hw.h
index e159b39f67a2..974c3796a23f 100644
--- a/include/linux/usb/msm_hsusb_hw.h
+++ b/include/linux/usb/msm_hsusb_hw.h
@@ -22,6 +22,7 @@
 #define USB_AHBBURST         (MSM_USB_BASE + 0x0090)
 #define USB_AHBMODE          (MSM_USB_BASE + 0x0098)
 #define USB_GENCONFIG_2      (MSM_USB_BASE + 0x00a0)
+#define ULPI_TX_PKT_EN_CLR_FIX	BIT(19)
 
 #define USB_CAPLENGTH        (MSM_USB_BASE + 0x0100) /* 8 bit */
 
diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h
index 96ddfb7ab018..0b3da40a525e 100644
--- a/include/linux/usb/musb.h
+++ b/include/linux/usb/musb.h
@@ -124,7 +124,7 @@ struct musb_hdrc_platform_data {
 	int		(*set_power)(int state);
 
 	/* MUSB configuration-specific details */
-	struct musb_hdrc_config	*config;
+	const struct musb_hdrc_config *config;
 
 	/* Architecture specific board data	*/
 	void		*board_data;
diff --git a/include/linux/usb/of.h b/include/linux/usb/of.h
index 974bce93aa28..de3237fce6b2 100644
--- a/include/linux/usb/of.h
+++ b/include/linux/usb/of.h
@@ -16,6 +16,8 @@ enum usb_dr_mode of_usb_get_dr_mode_by_phy(struct device_node *phy_np);
 bool of_usb_host_tpl_support(struct device_node *np);
 int of_usb_update_otg_caps(struct device_node *np,
 			struct usb_otg_caps *otg_caps);
+struct device_node *usb_of_get_child_node(struct device_node *parent,
+			int portnum);
 #else
 static inline enum usb_dr_mode
 of_usb_get_dr_mode_by_phy(struct device_node *phy_np)
@@ -31,6 +33,11 @@ static inline int of_usb_update_otg_caps(struct device_node *np,
 {
 	return 0;
 }
+static inline struct device_node *usb_of_get_child_node
+		(struct device_node *parent, int portnum)
+{
+	return NULL;
+}
 #endif
 
 #if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_USB_SUPPORT)
diff --git a/include/linux/usb/otg-fsm.h b/include/linux/usb/otg-fsm.h
index f728f1854829..24198e16f849 100644
--- a/include/linux/usb/otg-fsm.h
+++ b/include/linux/usb/otg-fsm.h
@@ -40,6 +40,18 @@
 #define PROTO_HOST	(1)
 #define PROTO_GADGET	(2)
 
+#define OTG_STS_SELECTOR	0xF000	/* OTG status selector, according to
+					 * OTG and EH 2.0 Chapter 6.2.3
+					 * Table:6-4
+					 */
+
+#define HOST_REQUEST_FLAG	1	/* Host request flag, according to
+					 * OTG and EH 2.0 Charpter 6.2.3
+					 * Table:6-5
+					 */
+
+#define T_HOST_REQ_POLL		(1500)	/* 1500ms, HNP polling interval */
+
 enum otg_fsm_timer {
 	/* Standard OTG timers */
 	A_WAIT_VRISE,
@@ -48,6 +60,7 @@ enum otg_fsm_timer {
 	A_AIDL_BDIS,
 	B_ASE0_BRST,
 	A_BIDL_ADIS,
+	B_AIDL_BDIS,
 
 	/* Auxiliary timers */
 	B_SE0_SRP,
@@ -119,6 +132,8 @@ struct otg_fsm {
 	/* Current usb protocol used: 0:undefine; 1:host; 2:client */
 	int protocol;
 	struct mutex lock;
+	u8 *host_req_flag;
+	struct delayed_work hnp_polling_work;
 };
 
 struct otg_fsm_ops {
diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
index 4db191fe8c2c..00a47d058d83 100644
--- a/include/linux/usb/renesas_usbhs.h
+++ b/include/linux/usb/renesas_usbhs.h
@@ -184,6 +184,7 @@ struct renesas_usbhs_driver_param {
 };
 
 #define USBHS_TYPE_RCAR_GEN2	1
+#define USBHS_TYPE_RCAR_GEN3	2
 
 /*
  * option:
diff --git a/include/linux/usb/storage.h b/include/linux/usb/storage.h
index cb33fff2ba0b..305ee8db7faf 100644
--- a/include/linux/usb/storage.h
+++ b/include/linux/usb/storage.h
@@ -45,9 +45,9 @@
 
 #define USB_PR_DEVICE	0xff		/* Use device's value */
 
- /*
-  * Bulk only data structures
-  */
+/*
+ * Bulk only data structures
+ */
 
 /* command block wrapper */
 struct bulk_cb_wrap {
@@ -56,18 +56,18 @@ struct bulk_cb_wrap {
 	__le32	DataTransferLength;	/* size of data */
 	__u8	Flags;			/* direction in bit 0 */
 	__u8	Lun;			/* LUN normally 0 */
-	__u8	Length;			/* of of the CDB */
+	__u8	Length;			/* length of the CDB */
 	__u8	CDB[16];		/* max command */
 };
 
 #define US_BULK_CB_WRAP_LEN	31
-#define US_BULK_CB_SIGN		0x43425355	/*spells out USBC */
+#define US_BULK_CB_SIGN		0x43425355	/* spells out 'USBC' */
 #define US_BULK_FLAG_IN		(1 << 7)
 #define US_BULK_FLAG_OUT	0
 
 /* command status wrapper */
 struct bulk_cs_wrap {
-	__le32	Signature;	/* should = 'USBS' */
+	__le32	Signature;	/* contains 'USBS' */
 	__u32	Tag;		/* same as original command */
 	__le32	Residue;	/* amount not transferred */
 	__u8	Status;		/* see below */