Merge tag 'usb-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB patches from Greg KH:
 "Here's the big pull request for the USB driver tree for 3.20-rc1.

  Nothing major happening here, just lots of gadget driver updates, new
  device ids, and a bunch of cleanups.

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

* tag 'usb-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (299 commits)
  usb: musb: fix device hotplug behind hub
  usb: dwc2: Fix a bug in reading the endpoint directions from reg.
  staging: emxx_udc: fix the build error
  usb: Retry port status check on resume to work around RH bugs
  Revert "usb: Reset USB-3 devices on USB-3 link bounce"
  uhci-hub: use HUB_CHAR_*
  usb: kconfig: replace PPC_OF with PPC
  ehci-pci: disable for Intel MID platforms (update)
  usb: gadget: Kconfig: use bool instead of boolean
  usb: musb: blackfin: remove incorrect __exit_p()
  USB: fix use-after-free bug in usb_hcd_unlink_urb()
  ehci-pci: disable for Intel MID platforms
  usb: host: pci_quirks: joing string literals
  USB: add flag for HCDs that can't receive wakeup requests (isp1760-hcd)
  USB: usbfs: allow URBs to be reaped after disconnection
  cdc-acm: kill unnecessary messages
  cdc-acm: add sanity checks
  usb: phy: phy-generic: Fix USB PHY gpio reset
  usb: dwc2: fix USB core dependencies
  usb: renesas_usbhs: fix NULL pointer dereference in dma_release_channel()
  ...

10 files changed, 41 insertions, 12 deletions

diff --git a/include/linux/mfd/syscon/exynos4-pmu.h b/include/linux/mfd/syscon/exynos4-pmu.h
new file mode 100644
index 0000000..278b1b1
--- /dev/null
+++ b/include/linux/mfd/syscon/exynos4-pmu.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2015 Samsung Electronics Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _LINUX_MFD_SYSCON_PMU_EXYNOS4_H_
+#define _LINUX_MFD_SYSCON_PMU_EXYNOS4_H_
+
+/* Exynos4 PMU register definitions */
+
+/* MIPI_PHYn_CONTROL register offset: n = 0..1 */
+#define EXYNOS4_MIPI_PHY_CONTROL(n)	(0x710 + (n) * 4)
+#define EXYNOS4_MIPI_PHY_ENABLE		(1 << 0)
+#define EXYNOS4_MIPI_PHY_SRESETN	(1 << 1)
+#define EXYNOS4_MIPI_PHY_MRESETN	(1 << 2)
+#define EXYNOS4_MIPI_PHY_RESET_MASK	(3 << 1)
+
+#endif /* _LINUX_MFD_SYSCON_PMU_EXYNOS4_H_ */
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index bbf85d6..2e75ab0 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -53,9 +53,9 @@ struct ieee1394_device_id {
 
 /**
  * struct usb_device_id - identifies USB devices for probing and hotplugging
- * @match_flags: Bit mask controlling of the other fields are used to match
- *	against new devices.  Any field except for driver_info may be used,
- *	although some only make sense in conjunction with other fields.
+ * @match_flags: Bit mask controlling which of the other fields are used to
+ *	match against new devices. Any field except for driver_info may be
+ *	used, although some only make sense in conjunction with other fields.
  *	This is usually set by a USB_DEVICE_*() macro, which sets all
  *	other fields in this structure except for driver_info.
  * @idVendor: USB vendor ID for a device; numbers are assigned
diff --git a/include/linux/usb.h b/include/linux/usb.h
index f89c24a..7ee1b5c 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -82,7 +82,7 @@ struct usb_host_interface {
 	int extralen;
 	unsigned char *extra;   /* Extra descriptors */
 
-	/* array of desc.bNumEndpoint endpoints associated with this
+	/* array of desc.bNumEndpoints endpoints associated with this
 	 * interface setting.  these will be in no particular order.
 	 */
 	struct usb_host_endpoint *endpoint;
@@ -127,10 +127,6 @@ enum usb_interface_condition {
  *	to the sysfs representation for that device.
  * @pm_usage_cnt: PM usage counter for this interface
  * @reset_ws: Used for scheduling resets from atomic context.
- * @reset_running: set to 1 if the interface is currently running a
- *      queued reset so that usb_cancel_queued_reset() doesn't try to
- *      remove from the workqueue when running inside the worker
- *      thread. See __usb_queue_reset_device().
  * @resetting_device: USB core reset the device, so use alt setting 0 as
  *	current; needs bandwidth alloc after reset.
  *
@@ -181,7 +177,6 @@ struct usb_interface {
 	unsigned needs_remote_wakeup:1;	/* driver requires remote wakeup */
 	unsigned needs_altsetting0:1;	/* switch to altsetting 0 is pending */
 	unsigned needs_binding:1;	/* needs delayed unbind/rebind */
-	unsigned reset_running:1;
 	unsigned resetting_device:1;	/* true: bandwidth alloc after reset */
 
 	struct device dev;		/* interface specific device info */
diff --git a/include/linux/usb/ehci_pdriver.h b/include/linux/usb/ehci_pdriver.h
index 7eb4dcd..db0431b 100644
--- a/include/linux/usb/ehci_pdriver.h
+++ b/include/linux/usb/ehci_pdriver.h
@@ -34,6 +34,8 @@ struct usb_hcd;
  *			after initialization.
  * @no_io_watchdog:	set to 1 if the controller does not need the I/O
  *			watchdog to run.
+ * @reset_on_resume:	set to 1 if the controller needs to be reset after
+ * 			a suspend / resume cycle (but can't detect that itself).
  *
  * These are general configuration options for the EHCI controller. All of
  * these options are activating more or less workarounds for some hardware.
@@ -45,6 +47,8 @@ struct usb_ehci_pdata {
 	unsigned	big_endian_desc:1;
 	unsigned	big_endian_mmio:1;
 	unsigned	no_io_watchdog:1;
+	unsigned	reset_on_resume:1;
+	unsigned	dma_mask_64:1;
 
 	/* Turn on all power and clocks */
 	int (*power_on)(struct platform_device *pdev);
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 70ddb39..e2f00fd 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -523,6 +523,7 @@ struct usb_gadget_ops {
  *	enabled HNP support.
  * @quirk_ep_out_aligned_size: epout requires buffer size to be aligned to
  *	MaxPacketSize.
+ * @is_selfpowered: if the gadget is self-powered.
  *
  * Gadgets have a mostly-portable "gadget driver" implementing device
  * functions, handling all usb configurations and interfaces.  Gadget
@@ -563,6 +564,7 @@ struct usb_gadget {
 	unsigned			a_hnp_support:1;
 	unsigned			a_alt_hnp_support:1;
 	unsigned			quirk_ep_out_aligned_size:1;
+	unsigned			is_selfpowered:1;
 };
 #define work_to_gadget(w)	(container_of((w), struct usb_gadget, work))
 
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 086bf13..68b1e83 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -146,6 +146,8 @@ struct usb_hcd {
 	unsigned		amd_resume_bug:1; /* AMD remote wakeup quirk */
 	unsigned		can_do_streams:1; /* HC supports streams */
 	unsigned		tpl_support:1; /* OTG & EH TPL support */
+	unsigned		cant_recv_wakeups:1;
+			/* wakeup requests from downstream aren't received */
 
 	unsigned int		irq;		/* irq allocated */
 	void __iomem		*regs;		/* device memory/io */
@@ -453,6 +455,7 @@ extern const struct dev_pm_ops usb_hcd_pci_pm_ops;
 #endif /* CONFIG_PCI */
 
 /* pci-ish (pdev null is ok) buffer alloc/mapping support */
+void usb_init_pool_max(void);
 int hcd_buffer_create(struct usb_hcd *hcd);
 void hcd_buffer_destroy(struct usb_hcd *hcd);
 
diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
index f499c23..bc91b5d 100644
--- a/include/linux/usb/phy.h
+++ b/include/linux/usb/phy.h
@@ -1,5 +1,5 @@
-/* USB OTG (On The Go) defines */
 /*
+ * USB PHY defines
  *
  * These APIs may be used between USB controllers.  USB device drivers
  * (for either host or peripheral roles) don't use these calls; they
@@ -106,7 +106,7 @@ struct usb_phy {
 	int	(*set_power)(struct usb_phy *x,
 				unsigned mA);
 
-	/* for non-OTG B devices: set transceiver into suspend mode */
+	/* Set transceiver into suspend mode */
 	int	(*set_suspend)(struct usb_phy *x,
 				int suspend);
 
diff --git a/include/linux/usb/usb_phy_generic.h b/include/linux/usb/usb_phy_generic.h
index 68adae8..c13632d5 100644
--- a/include/linux/usb/usb_phy_generic.h
+++ b/include/linux/usb/usb_phy_generic.h
@@ -2,6 +2,7 @@
 #define __LINUX_USB_NOP_XCEIV_H
 
 #include <linux/usb/otg.h>
+#include <linux/gpio/consumer.h>
 
 struct usb_phy_generic_platform_data {
 	enum usb_phy_type type;
@@ -11,6 +12,7 @@ struct usb_phy_generic_platform_data {
 	unsigned int needs_vcc:1;
 	unsigned int needs_reset:1;	/* deprecated */
 	int gpio_reset;
+	struct gpio_desc *gpiod_vbus;
 };
 
 #if IS_ENABLED(CONFIG_NOP_USB_XCEIV)
diff --git a/include/uapi/linux/usb/functionfs.h b/include/uapi/linux/usb/functionfs.h
index 295ba29..108dd79 100644
--- a/include/uapi/linux/usb/functionfs.h
+++ b/include/uapi/linux/usb/functionfs.h
@@ -20,6 +20,7 @@ enum functionfs_flags {
 	FUNCTIONFS_HAS_SS_DESC = 4,
 	FUNCTIONFS_HAS_MS_OS_DESC = 8,
 	FUNCTIONFS_VIRTUAL_ADDR = 16,
+	FUNCTIONFS_EVENTFD = 32,
 };
 
 /* Descriptor of an non-audio endpoint */
diff --git a/include/uapi/linux/usbdevice_fs.h b/include/uapi/linux/usbdevice_fs.h
index abe5f4b..019ba1e 100644
--- a/include/uapi/linux/usbdevice_fs.h
+++ b/include/uapi/linux/usbdevice_fs.h
@@ -128,11 +128,12 @@ struct usbdevfs_hub_portinfo {
 	char port [127];	/* e.g. port 3 connects to device 27 */
 };
 
-/* Device capability flags */
+/* System and bus capability flags */
 #define USBDEVFS_CAP_ZERO_PACKET		0x01
 #define USBDEVFS_CAP_BULK_CONTINUATION		0x02
 #define USBDEVFS_CAP_NO_PACKET_SIZE_LIM		0x04
 #define USBDEVFS_CAP_BULK_SCATTER_GATHER	0x08
+#define USBDEVFS_CAP_REAP_AFTER_DISCONNECT	0x10
 
 /* USBDEVFS_DISCONNECT_CLAIM flags & struct */