platform/kernel/linux-rpi.git
11 years agoUSB: option: add Huawei "ACM" devices using protocol = vendor
Bjørn Mork [Wed, 13 Feb 2013 22:41:34 +0000 (23:41 +0100)]
USB: option: add Huawei "ACM" devices using protocol = vendor

The USB device descriptor of one identity presented by a few
Huawei morphing devices have serial functions with class codes
02/02/ff, indicating CDC ACM with a vendor specific protocol. This
combination is often used for MSFT RNDIS functions, and the CDC
ACM class driver will therefore ignore such functions.

The CDC ACM class driver cannot support functions with only 2
endpoints.  The underlying serial functions of these modems are
also believed to be the same as for alternate device identities
already supported by the option driver. Letting the same driver
handle these functions independently of the current identity
ensures consistent handling and user experience.

There is no need to blacklist these devices in the rndis_host
driver. Huawei serial functions will either have only 2 endpoints
or a CDC ACM functional descriptor with bmCapabilities != 0, making
them correctly ignored as "non RNDIS" by that driver.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: serial: fix null-pointer dereferences on disconnect
Johan Hovold [Wed, 13 Feb 2013 16:53:28 +0000 (17:53 +0100)]
USB: serial: fix null-pointer dereferences on disconnect

Make sure serial-driver dtr_rts is called with disc_mutex held after
checking the disconnected flag.

Due to a bug in the tty layer, dtr_rts may get called after a device has
been disconnected and the tty-device unregistered. Some drivers have had
individual checks for disconnect to make sure the disconnected interface
was not accessed, but this should really be handled in usb-serial core
(at least until the long-standing tty-bug has been fixed).

Note that the problem has been made more acute with commit 0998d0631001
("device-core: Ensure drvdata = NULL when no driver is bound") as the
port data is now also NULL when dtr_rts is called resulting in further
oopses.

Reported-by: Chris Ruehl <chris.ruehl@gtsys.com.hk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: option: add Yota / Megafon M100-1 4g modem
Bjørn Mork [Tue, 12 Feb 2013 12:42:24 +0000 (13:42 +0100)]
USB: option: add Yota / Megafon M100-1 4g modem

Interface layout:

 00 CD-ROM
 01 debug COM port
 02 AP control port
 03 modem
 04 usb-ethernet

Bus=01 Lev=02 Prnt=02 Port=01 Cnt=02 Dev#=  4 Spd=480  MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=0408 ProdID=ea42 Rev= 0.00
S:  Manufacturer=Qualcomm, Incorporated
S:  Product=Qualcomm CDMA Technologies MSM
S:  SerialNumber=353568051xxxxxx
C:* #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=84(I) Atr=03(Int.) MxPS=  64 Ivl=2ms
E:  Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=86(I) Atr=03(Int.) MxPS=  64 Ivl=2ms
E:  Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agodrivers/usb: add missing GENERIC_HARDIRQS dependencies
Heiko Carstens [Wed, 6 Feb 2013 16:24:01 +0000 (17:24 +0100)]
drivers/usb: add missing GENERIC_HARDIRQS dependencies

Add a couple of missing GENERIC_HARDIRQS dependencies to fix link
errors like below on s390:

ERROR: "devm_request_threaded_irq" [drivers/usb/gadget/mv_udc.ko] undefined!

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: storage: properly handle the endian issues of idProduct
fangxiaozhi [Thu, 7 Feb 2013 07:32:07 +0000 (15:32 +0800)]
USB: storage: properly handle the endian issues of idProduct

1. The idProduct is little endian, so make sure its value to be
compatible with the current CPU. Make no break on big endian processors.

Signed-off-by: fangxiaozhi <huananhu@huawei.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agotestusb: remove all mentions of 'usbfs'
Sergei Shtylyov [Fri, 8 Feb 2013 15:48:03 +0000 (18:48 +0300)]
testusb: remove all mentions of 'usbfs'

Commit 8a424bf40d772fedacc91862ecc86f10541fabb3 (tools/usb: remove last USBFS
user) removed 'usbfs' files from the source but retained mentions of 'usbfs'
all over the place, most importantly in the misleading error messages printed
in case USB device files are not there.  Remove all the  mentions of 'usbfs'
for good now!

Signed-off-by: Sergei Shtylyov <sshtylyov@dev.rtsoft.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoMerge usb-linus branch into usb-next
Greg Kroah-Hartman [Fri, 8 Feb 2013 20:03:11 +0000 (12:03 -0800)]
Merge usb-linus branch into usb-next

This pulls in a bunch of fixes that are in Linus's tree because we need them
here for testing and development.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: gadget: imx_udc: make it depend on BROKEN
Felipe Balbi [Wed, 6 Feb 2013 07:12:14 +0000 (09:12 +0200)]
usb: gadget: imx_udc: make it depend on BROKEN

that driver hasn't been maintained for quite
some time, at least since e08300043e (ARM:
imx: dynamically allocate imx_udc device).

Because of that, and because driver doesn't
even compile with allyesconfig and allmodconfig,
we're making it depend on BROKEN.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: omap_control_usb: fix compile warning
Felipe Balbi [Wed, 6 Feb 2013 13:28:51 +0000 (18:58 +0530)]
usb: omap_control_usb: fix compile warning

When CONFIG_OMAP_CONTROL_USB isn't enabled,
there's a compile warning stating that a
particular function isn't a prototype.

Fix it.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoARM: OMAP: USB: Add phy binding information
Kishon Vijay Abraham I [Wed, 6 Feb 2013 13:28:50 +0000 (18:58 +0530)]
ARM: OMAP: USB: Add phy binding information

This is w.r.t the changes in PHY library to support adding and getting
multiple PHYs of the same type. In the new design, the
binding information between the PHY and the USB controller should be
specified in the platform specific initialization code. So it's been
done here for OMAP platforms.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoARM: OMAP2: MUSB: Specify omap4 has mailbox
Kishon Vijay Abraham I [Wed, 6 Feb 2013 13:28:49 +0000 (18:58 +0530)]
ARM: OMAP2: MUSB: Specify omap4 has mailbox

Added has_mailbox to the musb platform data to specify that omap uses
an external mailbox (in control module) to communicate with the musb
core during device connect and disconnect.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoARM: OMAP: devices: create device for usb part of control module
Kishon Vijay Abraham I [Wed, 6 Feb 2013 13:28:48 +0000 (18:58 +0530)]
ARM: OMAP: devices: create device for usb part of control module

A seperate driver has been added to handle the usb part of control
module. A device for the above driver is created here, using the register
address information to be used by the driver for powering on the PHY and
for writing to the mailbox.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoARM: OMAP4: remove control module address space from PHY and OTG
Kishon Vijay Abraham I [Wed, 6 Feb 2013 13:28:47 +0000 (18:58 +0530)]
ARM: OMAP4: remove control module address space from PHY and OTG

Now that we have a separate driver for the control module,
stop populating the control module device data in other modules
(PHY and OTG) device info.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: wusbcore/wa-xfer: error handling fixes in setup_segs()
Dan Carpenter [Fri, 1 Feb 2013 12:53:34 +0000 (15:53 +0300)]
USB: wusbcore/wa-xfer: error handling fixes in setup_segs()

1) It didn't free xfer->seg[0] so there was a leak.
2) xfer->seg[cnt] can be NULL.
3) Use usb_free_urb() for ->dto_urb instead of kfree().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agodrivers/usb/gadget: using strlcpy instead of strncpy
Chen Gang [Sat, 2 Feb 2013 07:48:54 +0000 (15:48 +0800)]
drivers/usb/gadget: using strlcpy instead of strncpy

  for NUL terminated string, better notice '\0' in the end.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agodrivers/usb/core: using strlcpy instead of strncpy
Chen Gang [Sat, 2 Feb 2013 07:57:53 +0000 (15:57 +0800)]
drivers/usb/core: using strlcpy instead of strncpy

  for NUL terminated string, better notice '\0' in the end.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: storage: optimize to match the Huawei USB storage devices and support new switch...
fangxiaozhi [Mon, 4 Feb 2013 07:16:34 +0000 (15:16 +0800)]
USB: storage: optimize to match the Huawei USB storage devices and support new switch command

1. Optimize the match rules with new macro for Huawei USB storage devices,
   to avoid to load USB storage driver for the modem interface
   with Huawei devices.
2. Add to support new switch command for new Huawei USB dongles.

Signed-off-by: fangxiaozhi <huananhu@huawei.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: storage: Define a new macro for USB storage match rules
fangxiaozhi [Mon, 4 Feb 2013 07:14:46 +0000 (15:14 +0800)]
USB: storage: Define a new macro for USB storage match rules

1. Define a new macro for USB storage match rules:
    matching with Vendor ID and interface descriptors.

Signed-off-by: fangxiaozhi <huananhu@huawei.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: ftdi_sio: add Zolix FTDI PID
Petr Kubánek [Fri, 1 Feb 2013 16:24:04 +0000 (17:24 +0100)]
USB: ftdi_sio: add Zolix FTDI PID

Add support for Zolix Omni 1509 monochromator custom USB-RS232 converter.

Signed-off-by: Petr Kubánek <petr@kubanek.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: option: add Changhong CH690
Bjørn Mork [Fri, 1 Feb 2013 11:06:51 +0000 (12:06 +0100)]
USB: option: add Changhong CH690

New device with 3 serial interfaces:

 If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend) Sub=ff Prot=ff
 If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend) Sub=ff Prot=ff
 If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend) Sub=ff Prot=ff
 If#= 3 Alt= 0 #EPs= 2 Cls=08(stor) Sub=06 Prot=50

Cc: <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: ftdi_sio: add PID/VID entries for ELV WS 300 PC II
Sven Killig [Fri, 1 Feb 2013 22:43:06 +0000 (23:43 +0100)]
USB: ftdi_sio: add PID/VID entries for ELV WS 300 PC II

Add PID/VID entries for ELV WS 300 PC II weather station

Signed-off-by: Sven Killig <sven@killig.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: add OWL CM-160 support to cp210x driver
Luis Llorente Campo [Thu, 31 Jan 2013 12:37:05 +0000 (13:37 +0100)]
USB: add OWL CM-160 support to cp210x driver

This adds support for the OWL CM-160 electricity monitor to the cp210x
driver.

Signed-off-by: Luis Llorente <luisllorente@luisllorente.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: EHCI: fix bug in scheduling periodic split transfers
Alan Stern [Wed, 30 Jan 2013 21:36:40 +0000 (16:36 -0500)]
USB: EHCI: fix bug in scheduling periodic split transfers

This patch (as1654) fixes a very old bug in ehci-hcd, connected with
scheduling of periodic split transfers.  The calculations for
full/low-speed bus usage are all carried out after the correction for
bit-stuffing has been applied, but the values in the max_tt_usecs
array assume it hasn't been.  The array should allow for allocation of
up to 90% of the bus capacity, which is 900 us, not 780 us.

The symptom caused by this bug is that any isochronous transfer to a
full-speed device with a maxpacket size larger than about 980 bytes is
always rejected with a -ENOSPC error.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: EHCI: fix for leaking isochronous data
Alan Stern [Wed, 30 Jan 2013 21:35:02 +0000 (16:35 -0500)]
USB: EHCI: fix for leaking isochronous data

This patch (as1653) fixes a bug in ehci-hcd.  Unlike iTD entries, an
siTD entry in the periodic schedule may not complete until the frame
after the one it belongs to.  Consequently, when scanning the periodic
schedule it is necessary to start with the frame _preceding_ the one
where the previous scan ended.

Not doing this properly can result in memory leaks and failures to
complete isochronous URBs.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Andy Leiserson <andy@leiserson.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: GADGET: optionally force full-speed for net2280 UDC
Alan Stern [Wed, 30 Jan 2013 21:40:14 +0000 (16:40 -0500)]
USB: GADGET: optionally force full-speed for net2280 UDC

This patch (as1656) adds a module parameter to the net2280 UDC driver
to force full-speed operation.  It is intended for testing purposes,
where one wants to check how well a full-speed device performs when
attached to a high-speed bus.  Without this parameter it would be
necessary to interpose a full-speed hub; otherwise the net2280 would
connect at high speed.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: altsetting overrides for usbtest
Alan Stern [Wed, 30 Jan 2013 21:38:11 +0000 (16:38 -0500)]
USB: altsetting overrides for usbtest

The usbtest driver includes some rather simple-minded logic for
selecting an altsetting to test.  It doesn't work well for the g_zero
gadget, because it selects altsetting 0 (which doesn't have
isochronous endpoints) rather than altsetting 1 (which does have them,
if the gadget's hardware supports them).  This prevents usbtest's
isochronous tests (15, 16, 22, and 23) from working with g_zero.

Since g_zero is one of the most common gadget drivers used for USB
testing, usbtest should do a better job of supporting it.  But since
some programs may rely on the current scheme for selecting
altsettings, I didn't want to change it.

Instead, this patch (as1655) adds a module parameter to usbtest, which
can be used to override the default altsetting.  Since usbtest is
never used by normal users (most distributions probably don't even
build it), the new module parameter won't inconvenience anybody.  In
any case, it is entirely optional -- leaving it unset preserves the
existing behavior.

The patch also fixes a related bug in usbtest: After selecting an
altsetting, the driver neglects to store its selection.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: option: add support for Telit LE920
Daniele Palmas [Mon, 28 Jan 2013 15:47:10 +0000 (16:47 +0100)]
USB: option: add support for Telit LE920

Add PID and special handling for Telit LE920

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: qcserial: add Telit Gobi QDL device
Daniele Palmas [Mon, 28 Jan 2013 15:48:54 +0000 (16:48 +0100)]
USB: qcserial: add Telit Gobi QDL device

Add VID and PID for Telit Gobi QDL device

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: chipidea: ci13xxx_imx: Remove sparse warning
Fabio Estevam [Mon, 28 Jan 2013 00:45:05 +0000 (22:45 -0200)]
USB: chipidea: ci13xxx_imx: Remove sparse warning

Remove the following sparse warning:

drivers/usb/chipidea/ci13xxx_imx.h:22:25: error: dubious one-bit signed bitfield
drivers/usb/chipidea/ci13xxx_imx.h:22:25: error: dubious one-bit signed bitfield

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb/isp1760: declare schedule_ptds() and errata2_function() static
Arvid Brodin [Sun, 27 Jan 2013 15:41:26 +0000 (16:41 +0100)]
usb/isp1760: declare schedule_ptds() and errata2_function() static

Fix two problems detected by the sparse code analyser:

|drivers/usb/host/isp1760-hcd.c:935:6: warning: symbol 'schedule_ptds' was not declared. Should it be static?
|drivers/usb/host/isp1760-hcd.c:1288:6: warning: symbol 'errata2_function' was not declared. Should it be static?

Signed-off-by: Arvid Brodin <arvid.brodin@xdin.com>
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: phy: fix Kconfig warning
Felipe Balbi [Mon, 28 Jan 2013 08:20:47 +0000 (10:20 +0200)]
usb: phy: fix Kconfig warning

Recent commits introduced the following
Kconfig warning:

warning: (USB_MUSB_HDRC && OMAP_USB3) selects \
OMAP_CONTROL_USB which has unmet direct \
dependencies (USB_SUPPORT && ARCH_OMAP2PLUS)

This patch just fixes it, by removing the
unnecessary OMAP dependency.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoRevert "usb: Register usb port's acpi power resources"
Lan Tianyu [Mon, 28 Jan 2013 16:59:06 +0000 (00:59 +0800)]
Revert "usb: Register usb port's acpi power resources"

This reverts commit 88bb965ed711e8a5984e70208ebc901a6ff4141f.

The linux-next branch of linux-pm tree has replaced
acpi_power_resource_(un)register_device() with new routines.
Commit 88bb965 will cause conflict in the linux-next tree.
So revert it and this will not affect other functions. Will
send a new patch with new routines after 3.9 merge window.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: EHCI: fix timer bug affecting port resume
Alan Stern [Fri, 25 Jan 2013 22:17:43 +0000 (17:17 -0500)]
USB: EHCI: fix timer bug affecting port resume

This patch (as1652) fixes a long-standing bug in ehci-hcd.  The driver
relies on status polls to know when to stop port-resume signalling.
It uses the root-hub status timer to schedule these status polls.  But
when the driver for the root hub is resumed, the timer is rescheduled
to go off immediately -- before the port is ready.  When this happens
the timer does not get re-enabled, which prevents the port resume from
finishing until some other event occurs.

The symptom is that when a new device is plugged in, it doesn't get
recognized or enumerated until lsusb is run or something else happens.

The solution is to re-enable the root-hub status timer after every
status poll while a port resume is in progress.

This bug hasn't surfaced before now because we never used to try to
suspend the root hub in the middle of a port resume (except by
coincidence).

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: Norbert Preining <preining@logic.at>
Tested-by: Ming Lei <ming.lei@canonical.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: UHCI: notify usbcore about port resumes
Alan Stern [Fri, 25 Jan 2013 22:09:55 +0000 (17:09 -0500)]
USB: UHCI: notify usbcore about port resumes

This patch (as1651) adds calls to the new
usb_hcd_{start,end}_port_resume() functions to uhci-hcd.  Now UHCI
root hubs won't be runtime suspended while they are sending a resume
signal to one of their ports.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: EHCI: notify usbcore about port resumes
Alan Stern [Fri, 25 Jan 2013 22:09:49 +0000 (17:09 -0500)]
USB: EHCI: notify usbcore about port resumes

This patch (as1650) adds calls to the new
usb_hcd_{start,end}_port_resume() functions to ehci-hcd.  Now EHCI
root hubs won't be runtime suspended while they are sending a resume
signal to one of their ports.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: add usb_hcd_{start,end}_port_resume
Alan Stern [Fri, 25 Jan 2013 22:09:42 +0000 (17:09 -0500)]
USB: add usb_hcd_{start,end}_port_resume

This patch (as1649) adds a mechanism for host controller drivers to
inform usbcore when they have begun or ended resume signalling on a
particular root-hub port.  The core will then make sure that the root
hub does not get runtime-suspended while the port resume is going on.

Since commit 596d789a211d134dc5f94d1e5957248c204ef850 (USB: set hub's
default autosuspend delay as 0), the system tries to suspend hubs
whenever they aren't in use.  While a root-hub port is being resumed,
the root hub does not appear to be in use.  Attempted runtime suspends
fail because of the ongoing port resume, but the PM core just keeps on
trying over and over again.  We want to prevent this wasteful effort.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: EHCI: unlink one async QH at a time
Alan Stern [Fri, 25 Jan 2013 21:54:22 +0000 (16:54 -0500)]
USB: EHCI: unlink one async QH at a time

This patch (as1648) fixes a regression affecting nVidia EHCI
controllers.  Evidently they don't like to have more than one async QH
unlinked at a time.  I can't imagine how they manage to mess it up,
but at least one of them does.

The patch changes the async unlink logic in two ways:

Each time an IAA cycle is started, only the first QH on the
async unlink list is handled (rather than all of them).

Async QHs do not all get unlinked as soon as they have been
empty for long enough.  Instead, only the last one (i.e., the
one that has been on the schedule the longest) is unlinked,
and then only if no other unlinks are in progress at the time.

This means that when multiple QHs are empty, they won't be unlinked as
quickly as before.  That's okay; it won't affect correct operation of
the driver or add an excessive load.  Multiple unlinks tend to be
relatively rare in any case.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: Piergiorgio Sartor <piergiorgio.sartor@nexgo.de>
Cc: stable <stable@vger.kernel.org> # 3.6
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: EHCI: remove ASS/PSS polling timeout
Alan Stern [Fri, 25 Jan 2013 21:52:45 +0000 (16:52 -0500)]
USB: EHCI: remove ASS/PSS polling timeout

This patch (as1647) attempts to work around a problem that seems to
affect some nVidia EHCI controllers.  They sometimes take a very long
time to turn off their async or periodic schedules.  I don't know if
this is a result of other problems, but in any case it seems wise not
to depend on schedule enables or disables taking effect in any
specific length of time.

The patch removes the existing 20-ms timeout for enabling and
disabling the schedules.  The driver will now continue to poll the
schedule state at 1-ms intervals until the controller finally decides
to obey the most recent command issued by the driver.  Just in case
this hides a problem, a debugging message will be logged if the
controller takes longer than 20 polls.

I don't know if this will actually fix anything, but it can't hurt.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Piergiorgio Sartor <piergiorgio.sartor@nexgo.de>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoMerge tag 'for-usb-linus-2012-01-24' of git://git.kernel.org/pub/scm/linux/kernel...
Greg Kroah-Hartman [Fri, 25 Jan 2013 21:33:17 +0000 (13:33 -0800)]
Merge tag 'for-usb-linus-2012-01-24' of git://git./linux/kernel/git/sarah/xhci into usb-linus

Sarah writes:
USB/xhci: Misc fixes for 3.8.

Hi Greg,

Here's six patches for xHCI and the USB core.  There's a couple of
patches to fix xHCI 1.0 field formats, some memory leaks, dead ports,
and USB 3.0 remote wakeup disabling.

All of these are marked for stable.

I know I owe you some re-works of failed stable patches from my last
patchset round, but I don't think I'm going to get to them before I head
off to Linux Conf Australia tomorrow.

Sarah Sharp

11 years agoMerge 3.8-rc5 into usb-next
Greg Kroah-Hartman [Fri, 25 Jan 2013 20:41:02 +0000 (12:41 -0800)]
Merge 3.8-rc5 into usb-next

This fixes up a conflict with drivers/usb/serial/io_ti.c that came up in
linux-next.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoLinux 3.8-rc5
Linus Torvalds [Fri, 25 Jan 2013 19:57:28 +0000 (11:57 -0800)]
Linux 3.8-rc5

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Fri, 25 Jan 2013 18:55:21 +0000 (10:55 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "It turns out that we had two crc bugs when running fsx-linux in a
  loop.  Many thanks to Josef, Miao Xie, and Dave Sterba for nailing it
  all down.  Miao also has a new OOM fix in this v2 pull as well.

  Ilya fixed a regression Liu Bo found in the balance ioctls for pausing
  and resuming a running balance across drives.

  Josef's orphan truncate patch fixes an obscure corruption we'd see
  during xfstests.

  Arne's patches address problems with subvolume quotas.  If the user
  destroys quota groups incorrectly the FS will refuse to mount.

  The rest are smaller fixes and plugs for memory leaks."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (30 commits)
  Btrfs: fix repeated delalloc work allocation
  Btrfs: fix wrong max device number for single profile
  Btrfs: fix missed transaction->aborted check
  Btrfs: Add ACCESS_ONCE() to transaction->abort accesses
  Btrfs: put csums on the right ordered extent
  Btrfs: use right range to find checksum for compressed extents
  Btrfs: fix panic when recovering tree log
  Btrfs: do not allow logged extents to be merged or removed
  Btrfs: fix a regression in balance usage filter
  Btrfs: prevent qgroup destroy when there are still relations
  Btrfs: ignore orphan qgroup relations
  Btrfs: reorder locks and sanity checks in btrfs_ioctl_defrag
  Btrfs: fix unlock order in btrfs_ioctl_rm_dev
  Btrfs: fix unlock order in btrfs_ioctl_resize
  Btrfs: fix "mutually exclusive op is running" error code
  Btrfs: bring back balance pause/resume logic
  btrfs: update timestamps on truncate()
  btrfs: fix btrfs_cont_expand() freeing IS_ERR em
  Btrfs: fix a bug when llseek for delalloc bytes behind prealloc extents
  Btrfs: fix off-by-one in lseek
  ...

11 years agousb: enable usb port device's async suspend.
Lan Tianyu [Tue, 22 Jan 2013 20:26:32 +0000 (04:26 +0800)]
usb: enable usb port device's async suspend.

This patch is to set power.async_suspend for usb port in order
to allow it to be suspended and resumed asynchronously during
system sleep transitions.

The power.async_suspend flag is also set for devices that don't have
suspend or resume callbacks, because otherwise they would make the
main suspend/resume thread wait for their "asynchronous" children
(during suspend) or parents (during resume), effectively negating the
possible gains from executing these devices' suspend and resume
callbacks asynchronously.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: expose usb port's pm qos flags to user space
Lan Tianyu [Tue, 22 Jan 2013 20:26:31 +0000 (04:26 +0800)]
usb: expose usb port's pm qos flags to user space

This patch is to expose usb port's pm qos flags(pm_qos_no_power_off,
pm_qos_remote_wakeup) to user space. User can set pm_qos_no_power_off
flag to prohibit the port from being powered off.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: add usb port auto power off mechanism
Lan Tianyu [Tue, 22 Jan 2013 20:26:30 +0000 (04:26 +0800)]
usb: add usb port auto power off mechanism

This patch is to add usb port auto power off mechanism.
When usb device is suspending, usb core will suspend usb port and
usb port runtime pm callback will clear PORT_POWER feature to
power off port if all conditions were met. These conditions are
remote wakeup disable, pm qos NO_POWER_OFF flag clear and persist
enable. When it resumes, power on port again.

Add did_runtime_put in the struct usb_port to ensure
pm_runtime_get/put(portdev) to be called pairedly.  Set did_runtime_put
to true when call pm_runtime_put(portdev) during suspending. The
pm_runtime_get(portdev) only will be called when did_runtime_put
is set to true during resuming. Set did_runtime_put to false after
calling pm_runtime_get(portdev).

Make clear_port_feature() and hdev_to_hub() as global symbol.
Rename clear_port_feature() to usb_clear_port_feature() and
hdev_to_hub() to usb_hub_to_struct_hub().

Extend hub_port_debounce() with the fuction of debouncing to
be connected. Add two wraps: hub_port_debounce_be_connected()
and hub_port_debouce_be_stable().

Increase HUB_DEBOUNCE_TIMEOUT to 2000 because some usb ssds
needs around 1.5 or more to make the hub port status to be
connected steadily after being powered off and powered on.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: add runtime pm support for usb port device
Lan Tianyu [Tue, 22 Jan 2013 20:26:29 +0000 (04:26 +0800)]
usb: add runtime pm support for usb port device

This patch is to add runtime pm callback for usb port device.
Set/clear PORT_POWER feature in the resume/suspend callback.
Add portnum for struct usb_port to record port number. Do
pm_rumtime_get_sync/put(portdev) when a device is plugged/unplugged
to prevent it from being powered off when it is active.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoPM/Qos: Expose dev_pm_qos_flags symbol
Lan Tianyu [Tue, 22 Jan 2013 20:26:28 +0000 (04:26 +0800)]
PM/Qos: Expose dev_pm_qos_flags symbol

The dev_pm_qos_flags() will be used in the usb core which could be
compiled as a module. This patch is to export it.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: Register usb port's acpi power resources
Lan Tianyu [Tue, 22 Jan 2013 20:26:27 +0000 (04:26 +0800)]
usb: Register usb port's acpi power resources

This patch is to register usb port's acpi power resources. Create
link between usb port device and its acpi power resource.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb-uas: update MAINTAINERS entry
Gerd Hoffmann [Fri, 25 Jan 2013 13:52:09 +0000 (14:52 +0100)]
usb-uas: update MAINTAINERS entry

Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb-uas: set max_lun and max_channel
Gerd Hoffmann [Fri, 25 Jan 2013 14:03:36 +0000 (15:03 +0100)]
usb-uas: set max_lun and max_channel

256 luns is what the sam-4 address method 0 can handle and what
the qemu uas emulation supports.  So pick that for now.

[ v2: unlike the other two max_* fields max_channel isn't max+1 ]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: add driver for xsens motion trackers
Frans Klaver [Fri, 25 Jan 2013 16:05:44 +0000 (17:05 +0100)]
usb: add driver for xsens motion trackers

Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: misc: usb3503: Fix compiler warning
Dongjin Kim [Fri, 25 Jan 2013 16:53:03 +0000 (01:53 +0900)]
USB: misc: usb3503: Fix compiler warning

This patch fixes the compiler warning of uninitialized variable.

drivers/usb/misc/usb3503.c: In function ‘usb3503_probe’:
drivers/usb/misc/usb3503.c:215:13: warning: ‘mode’ may be used uninitialized
in this function [-Wuninitialized]

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoMerge tag 'xceiv-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi...
Greg Kroah-Hartman [Fri, 25 Jan 2013 17:09:46 +0000 (09:09 -0800)]
Merge tag 'xceiv-for-v3.9' of git://git./linux/kernel/git/balbi/usb into usb-next

Felipe writes:
usb: xceiv: patches for v3.9 merge window

Two new PHY drivers coming here: one for Samsung,
one for OMAP. Both architectures are adding USB3
support to mainline kernel.

The PHY layer now allows us to have mulitple PHYs
of the same type, which is necessary for platforms
which provide more than one USB peripheral port.

There's also a few cleanups here: removal of __dev*
annotations, conversion of a cast to to_delayed_work(),
and mxs-phy learns about ->set_suspend.

11 years agoMerge tag 'gadget-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi...
Greg Kroah-Hartman [Fri, 25 Jan 2013 17:08:05 +0000 (09:08 -0800)]
Merge tag 'gadget-for-v3.9' of git://git./linux/kernel/git/balbi/usb into usb-next

Felipe writes:
usb: gadget: patches for v3.9 merge window

finally getting rid of the old ->start()/->stop() methods
in favor of the better and improved ->udc_start()/->udc_stop().

There were surprisingly quite a few users left, but all of them
have been converted.

f_mass_storage removed some dead code, which is always great ;-)

There's also a big cleanup to the gadget framework from Sebastian
which gets us a lot closer to having only function drivers in
kernel and move over to configfs-based binding.

Other than these, there's the usual set of cleanups: s3c UDCs are
moving over to devm_regulator_bulk_get() API, at91_udc removed
an unnecessary check for work_pending() before scheduling and
there's the removal of an unused variable from uac2_pcm_trigger().

11 years agoMerge tag 'dwc3-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi...
Greg Kroah-Hartman [Fri, 25 Jan 2013 17:02:26 +0000 (09:02 -0800)]
Merge tag 'dwc3-for-v3.9' of git://git./linux/kernel/git/balbi/usb into usb-next

Felipe writes:
usb: dwc3: patches for v3.9 merge window

We're saving some extra memory now by being a lot
more conservative when allocating our event buffers.

Our default HIRD threshold value was mistakenly set
as one of the unsupported which would cause undefined
behavior. Turns out that it broke OMAP5 ES2.0, so we're
fixing it now by setting the maximum allowed HIRD
threshold (12).

Quite a few fixes to Isochronous transfers and scatter/gather
support from Pratyush.

We're also starting to support devicetree-based probe with
the latest changes from Kishon.

The usual set of cleanups also available: converting debugfs
regdump utility to regsets, better "compatible" strings for
Exynos platforms and the removal of the dependency for
Host and Gadget; now dwc3 can be compiled host-only, device-only,
and/or Dual-Role.

11 years agoMerge tag 'musb-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi...
Greg Kroah-Hartman [Fri, 25 Jan 2013 17:00:42 +0000 (09:00 -0800)]
Merge tag 'musb-for-v3.9' of git://git./linux/kernel/git/balbi/usb into usb-next

Felipe writes:
usb: musb: patches for v3.9 merge window

Mostly fixes all over which weren't urgent enough for
the late -rc cycle.

There is a Double Buffering fix for Host Mode TX,
a dependency fix for the transceiver driver, some
fixes to the error path and a fix for the use of
omap_musb_maibox.

Other than these fixes, there a removal duplicate
headers from the dsps glue layer and removal of
redundant assignments in omap2430_probe().

11 years agousb: dwc3: host: Change platform device ID for xhci-hcd to AUTO
Vivek Gautam [Fri, 25 Jan 2013 11:22:02 +0000 (16:52 +0530)]
usb: dwc3: host: Change platform device ID for xhci-hcd to AUTO

Multiple dwc3 controllers will try to allocate multiple xhci-hcd
interfaces.
Changing platform device IDs from NONE to AUTO to support
such cases.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: dwc3: exynos/omap: Change platform device IDs for no_op_xceive to AUTO
Vivek Gautam [Fri, 25 Jan 2013 11:22:01 +0000 (16:52 +0530)]
usb: dwc3: exynos/omap: Change platform device IDs for no_op_xceive to AUTO

Multiple dwc3 probe calls try to allocate no_op_xceive platform
device. Having static IDs for these will throw sysfs error -EEXIST.
Changing these static platform device IDs to AUTO to enable
multiple dwc3 controller support on a SoC.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: dwc3: core: add dt support for dwc3 core
Kishon Vijay Abraham I [Fri, 25 Jan 2013 11:06:53 +0000 (16:36 +0530)]
usb: dwc3: core: add dt support for dwc3 core

Added dt support for dwc3 core and update the documentation with
device tree binding information. Getting a PHY is now done using
devm_usb_get_phy_by_phandle() for dt boot.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: phy: omap-usb2: enable 960Mhz clock for omap5
Kishon Vijay Abraham I [Fri, 25 Jan 2013 02:51:49 +0000 (08:21 +0530)]
usb: phy: omap-usb2: enable 960Mhz clock for omap5

"usb_otg_ss_refclk960m" is needed for usb2 phy present in omap5. For
omap4, the clk_get of this clock will fail since it does not have this
clock.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: musb: omap: get phy by phandle for dt boot
Kishon Vijay Abraham I [Fri, 25 Jan 2013 02:33:26 +0000 (08:03 +0530)]
usb: musb: omap: get phy by phandle for dt boot

The OMAP glue has been modified to get PHY by phandle
for dt boot.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: musb: omap: make use of the new PHY lib APIs
Kishon Vijay Abraham I [Fri, 25 Jan 2013 02:33:24 +0000 (08:03 +0530)]
usb: musb: omap: make use of the new PHY lib APIs

New PHY lib APIs like usb_add_phy_dev() and devm_usb_get_phy_dev() are
used in MUSB (OMAP), in order to make use of the binding information
provided in the board file (of OMAP platforms).

All the platforms should be modified similar to this to add and get the
PHY.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: phy: add a new driver for usb3 phy
Kishon Vijay Abraham I [Fri, 25 Jan 2013 02:51:48 +0000 (08:21 +0530)]
usb: phy: add a new driver for usb3 phy

Added a driver for usb3 phy that handles the interaction between usb phy
device and dwc3 controller.

This also includes device tree support for usb3 phy driver and
the documentation with device tree binding information is updated.

Currently writing to control module register is taken care in this
driver which will be removed once the control module driver is in place.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Moiz Sonasath <m-sonasath@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: start using the control module driver
Kishon Vijay Abraham I [Fri, 25 Jan 2013 10:24:00 +0000 (15:54 +0530)]
usb: start using the control module driver

Start using the control module driver for powering on the PHY and for
writing to the mailbox instead of writing to the control module
registers on their own.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: phy: add a new driver for usb part of control module
Kishon Vijay Abraham I [Fri, 25 Jan 2013 10:23:57 +0000 (15:53 +0530)]
usb: phy: add a new driver for usb part of control module

Added a new driver for the usb part of control module. This has an API
to power on the USB2 phy and an API to write to the mailbox depending on
whether MUSB has to act in host mode or in device mode.

Writing to control module registers for doing the above task which was
previously done in omap glue and in omap-usb2 phy will be removed.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: otg: add device tree support to otg library
Kishon Vijay Abraham I [Fri, 25 Jan 2013 02:33:25 +0000 (08:03 +0530)]
usb: otg: add device tree support to otg library

Added an API devm_usb_get_phy_by_phandle(), to get usb phy by passing a
device node phandle value. This function will return a pointer to
the phy on success, -EPROBE_DEFER if there is a device_node for the phandle,
but the phy has not been added, or a ERR_PTR() otherwise.

Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: otg: utils: add facilities in phy lib to support multiple PHYs of same type
Kishon Vijay Abraham I [Fri, 25 Jan 2013 02:33:22 +0000 (08:03 +0530)]
usb: otg: utils: add facilities in phy lib to support multiple PHYs of same type

In order to add support for multipe PHY's of the same type, new API's
for adding PHY and getting PHY has been added. Now the binding
information for the PHY and controller should be done in platform file
using usb_bind_phy API. And for getting a PHY, the device pointer of the
USB controller and an index should be passed. Based on the binding
information that is added in the platform file, usb_get_phy_dev will return the
appropriate PHY.
Already existing API's to add and get phy by type is not removed. These
API's are deprecated and will be removed once all the platforms start to
use the new API.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: otg: add an api to bind the usb controller and phy
Kishon Vijay Abraham I [Fri, 25 Jan 2013 02:33:21 +0000 (08:03 +0530)]
usb: otg: add an api to bind the usb controller and phy

In order to support platforms which has multiple PHY's (of same type) and
which has multiple USB controllers, a new design is adopted wherin the binding
information (between the PHY and the USB controller) should be passed to the
PHY library from platform specific file (board file).
So added a new API to pass the binding information.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: dwc3: core: stray statements are removed
Kishon Vijay Abraham I [Fri, 25 Jan 2013 03:00:55 +0000 (08:30 +0530)]
usb: dwc3: core: stray statements are removed

No functional change. Stray statements where removed from dwc3 core.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: dwc3: core: enable the USB2 and USB3 phy in probe
Kishon Vijay Abraham I [Fri, 25 Jan 2013 03:00:54 +0000 (08:30 +0530)]
usb: dwc3: core: enable the USB2 and USB3 phy in probe

Enabled the USB2 and USB3 PHY in probe by calling usb_phy_set_suspend
and disabled the PHYs on driver removal. When PM is implemented this
will be optimized to enable the PHYs only when needed.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: dwc3: omap: Add an API to write to dwc mailbox
Kishon Vijay Abraham I [Fri, 25 Jan 2013 03:00:49 +0000 (08:30 +0530)]
usb: dwc3: omap: Add an API to write to dwc mailbox

Add an API in the omap glue layer to write to the mailbox register which
can be used by comparator driver(twl). To pass the detection of the attached
device (signified by VBUS, ID) to the dwc3 core, dwc3 core has to write
to the mailbox regiter.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: dwc3: omap: Remove explicit writes to SYSCONFIG register
Kishon Vijay Abraham I [Fri, 25 Jan 2013 03:00:48 +0000 (08:30 +0530)]
usb: dwc3: omap: Remove explicit writes to SYSCONFIG register

The runtime API's takes care of setting the SYSCONFIG register with
appropriate values. Hence explicit writes to SYSCONFIG register is
removed.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: dwc3: omap: use runtime API's to enable clocks
Kishon Vijay Abraham I [Fri, 25 Jan 2013 03:00:47 +0000 (08:30 +0530)]
usb: dwc3: omap: use runtime API's to enable clocks

Before accessing any register, runtime API's should be invoked to enable
the clocks. runtime API's are added here to prevent abort during register
access.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: dwc3: omap: use of_platform API to create dwc3 core pdev
Kishon Vijay Abraham I [Fri, 25 Jan 2013 03:00:46 +0000 (08:30 +0530)]
usb: dwc3: omap: use of_platform API to create dwc3 core pdev

Used of_platform_populate() to create dwc3 core platform_device
from device tree data.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: dwc3: omap: use device_for_each_child to handle child removal
Kishon Vijay Abraham I [Fri, 25 Jan 2013 03:00:45 +0000 (08:30 +0530)]
usb: dwc3: omap: use device_for_each_child to handle child removal

Used device_for_each_child() to handle child device (dwc3 core) removal
during devexit of dwc3 omap. This is in preparation for creating the child
devices from subnode of dwc3 omap glue using of_platform_populate.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: dwc3: exynos: fix compatible strings for the device
Vivek Gautam [Thu, 24 Jan 2013 13:45:30 +0000 (19:15 +0530)]
usb: dwc3: exynos: fix compatible strings for the device

Using specific chip in compatible strings. Newer SOCs can claim
device by using older string in the compatible list.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agoMerge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Fri, 25 Jan 2013 03:15:43 +0000 (19:15 -0800)]
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Two small cifs fixes"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  fs/cifs/cifs_dfs_ref.c: fix potential memory leakage
  cifs: fix srcip_matches() for ipv6

11 years agoMerge git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Fri, 25 Jan 2013 03:14:22 +0000 (19:14 -0800)]
Merge git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixlet from Marcelo Tosatti.

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: PPC: Emulate dcbf

11 years agousb: ehci-s5p/ohci-exynos: Fix compatible strings for the device
Vivek Gautam [Thu, 24 Jan 2013 13:45:29 +0000 (19:15 +0530)]
usb: ehci-s5p/ohci-exynos: Fix compatible strings for the device

Using specific chip in compatible strings. Newer SOCs can claim
device by using older string in the compatible list.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: fix sign-extension bug in the hub driver
Alan Stern [Thu, 24 Jan 2013 20:04:13 +0000 (15:04 -0500)]
USB: fix sign-extension bug in the hub driver

This patch (as1646) fixes a long-standing bug in the USB hub driver.
Upon conversion from char to unsigned long, the bytes in the status
buffer are subject to unwanted sign extension.  The bytes should be
declared as u8 rather than char, to prevent this.

This effects of this bug are minimal.  The hub driver may end up doing
a little unnecessary extra work because it thinks events have occurred
on some ports when they really haven't.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: uhci: beautify source code
Chen Gang [Thu, 24 Jan 2013 01:41:45 +0000 (09:41 +0800)]
USB: uhci: beautify source code

  get rid of the line breaks in string constants.
  let comments within 80 with limitation.
  delete ' \' at the end of a statement.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: option: add and update Alcatel modems
Bjørn Mork [Wed, 23 Jan 2013 09:44:36 +0000 (10:44 +0100)]
USB: option: add and update Alcatel modems

Adding three currently unsupported modems based on information
from .inf driver files:

  Diag  VID_1BBB&PID_0052&MI_00
  AGPS  VID_1BBB&PID_0052&MI_01
  VOICE VID_1BBB&PID_0052&MI_02
  AT    VID_1BBB&PID_0052&MI_03
  Modem VID_1BBB&PID_0052&MI_05
  wwan  VID_1BBB&PID_0052&MI_06

  Diag  VID_1BBB&PID_00B6&MI_00
  AT    VID_1BBB&PID_00B6&MI_01
  Modem VID_1BBB&PID_00B6&MI_02
  wwan  VID_1BBB&PID_00B6&MI_03

  Diag  VID_1BBB&PID_00B7&MI_00
  AGPS  VID_1BBB&PID_00B7&MI_01
  VOICE VID_1BBB&PID_00B7&MI_02
  AT    VID_1BBB&PID_00B7&MI_03
  Modem VID_1BBB&PID_00B7&MI_04
  wwan  VID_1BBB&PID_00B7&MI_05

Updating the blacklist info for the X060S_X200 and X220_X500D,
reserving interfaces for a wwan driver, based on

  wwan VID_1BBB&PID_0000&MI_04
  wwan VID_1BBB&PID_0017&MI_06

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: misc: usb3503: add dt support
Dongjin Kim [Wed, 23 Jan 2013 17:47:10 +0000 (02:47 +0900)]
USB: misc: usb3503: add dt support

Added device tree support for usb3503 driver and add new document with device tree binding information.

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: UHCI: remove unused definition
Woody Suwalski [Wed, 23 Jan 2013 18:51:28 +0000 (13:51 -0500)]
USB: UHCI: remove unused definition

Remove an unused (and erroneous) definition from the UHCI driver.

Signed-off: Woody Suwalski <terraluna977@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: uhci: check buffer length to avoid memory overflow
Chen Gang [Wed, 23 Jan 2013 08:13:41 +0000 (16:13 +0800)]
USB: uhci: check buffer length to avoid memory overflow

  for function uhci_sprint_schedule:
    the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough:
      may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024)
      each time of loop may get more than 64 bytes
    so need check the buffer length to avoid memory overflow

  this patch fix it like this:
    at first, make enough room for buffering the exceeding contents
    judge the contents which written whether bigger than buffer length
    if bigger (the exceeding contents will be in the exceeding buffer)
      break current work flow, and return.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoMerge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Linus Torvalds [Thu, 24 Jan 2013 20:44:57 +0000 (12:44 -0800)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm

Pull ARM fixes from Russell King:
 "A number of fixes:

  Patrik found a problem with preempt counting in the VFP assembly
  functions which can cause the preempt count to be upset.

  Nicolas fixed a problem with the parsing of the DT when it straddles a
  1MB boundary.

  Subhash Jadavani reported a problem with sparsemem and our highmem
  support for cache maintanence for DMA areas, and TI found a bug in
  their strongly ordered memory mapping type.

  Also, three fixes by way of Will Deacon's tree from Dave Martin for
  instruction compatibility and Marc Zyngier to fix hypervisor boot mode
  issues."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7629/1: mm: Fix missing XN flag for for MT_MEMORY_SO
  ARM: DMA: Fix struct page iterator in dma_cache_maint() to work with sparsemem
  ARM: 7628/1: head.S: map one extra section for the ATAG/DTB area
  ARM: 7627/1: Predicate preempt logic on PREEMP_COUNT not PREEMPT alone
  ARM: virt: simplify __hyp_stub_install epilog
  ARM: virt: boot secondary CPUs through the right entry point
  ARM: virt: Avoid bx instruction for compatibility with <=ARMv4

11 years agoMerge tag 'fixes-for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Thu, 24 Jan 2013 20:42:50 +0000 (12:42 -0800)]
Merge tag 'fixes-for-linus2' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Here's a long-pending fixes pull request for arm-soc (I didn't send
  one in the -rc4 cycle).

  The larger deltas are from:

   - A fixup of error paths in the mvsdio driver

   - Header file move for a driver that hadn't been properly converted
     to multiplatform on i.MX, which was causing build failures when
     included

   - Device tree updates for at91 dealing mostly with their new pinctrl
     setup merged in 3.8 and mistakes in those initial configs

  The rest are the normal mix of small fixes all over the place; sunxi,
  omap, imx, mvebu, etc, etc."

* tag 'fixes-for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (40 commits)
  mfd: vexpress-sysreg: Don't skip initialization on probe
  ARM: vexpress: Enable A7 cores in V2P-CA15_A7's Device Tree
  ARM: vexpress: extend the MPIDR range used for pen release check
  ARM: at91/dts: correct comment in at91sam9x5.dtsi for mii
  ARM: at91/at91_dt_defconfig: add at91sam9n12 SoC to DT defconfig
  ARM: at91/at91_dt_defconfig: remove memory specification to cmdline
  ARM: at91/dts: add macb mii pinctrl config for kizbox
  ARM: at91: rm9200: remake the BGA as default version
  ARM: at91: fix gpios on i2c-gpio for RM9200 DT
  ARM: at91/at91sam9x5 DTS: add SCK USART pins
  ARM: at91/at91sam9x5 DTS: correct wrong PIO BANK values on u(s)arts
  ARM: at91/at91-pinctrl documentation: fix typo and add some details
  ARM: kirkwood: fix missing #interrupt-cells property
  mmc: mvsdio: use devm_ API to simplify/correct error paths.
  clk: mvebu/clk-cpu.c: fix memory leakage
  ARM: OMAP2+: omap4-panda: add UART2 muxing for WiLink shared transport
  ARM: OMAP2+: DT node Timer iteration fix
  ARM: OMAP2+: Fix section warning for omap_init_ocp2scp()
  ARM: OMAP2+: fix build break for omapdrm
  ARM: OMAP2: Fix missing omap2xxx_clkt_vps_late_init function calls
  ...

11 years agousb: gadget: constify all struct usb_gadget_ops
Felipe Balbi [Thu, 24 Jan 2013 15:58:16 +0000 (17:58 +0200)]
usb: gadget: constify all struct usb_gadget_ops

Add the missing 'const' keyword to all struct
usb_gadget_ops in the gadget framework.

Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: gadget: mv_udc: fix the value of tranceiver
Chao Xie [Thu, 24 Jan 2013 06:38:30 +0000 (01:38 -0500)]
usb: gadget: mv_udc: fix the value of tranceiver

usally we will use udc->tranceiver == NULL or
udc->tranceiver != NULL.
So when failed to get the udc->tranceiver by usb_get_phy(), we
directly set udc->tranceiver to be NULL.
Then the source code will not need macro IS_ERR_OR_NULL() for
udc->tranceiver judgement. It can reduce the line size and make
the judgement simple.

Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: host: ehci-mv: remove unused variable
Chao Xie [Thu, 24 Jan 2013 06:38:29 +0000 (01:38 -0500)]
usb: host: ehci-mv: remove unused variable

Signed-off-by: Chao Xie <chao.xie@marvell.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: otg: mv_otg: use devm_xxx for probe
Chao Xie [Thu, 24 Jan 2013 06:38:28 +0000 (01:38 -0500)]
usb: otg: mv_otg: use devm_xxx for probe

use devm_xxx for otg driver probe. So we do need care about
the resources release in driver remove or failure handling
in driver probe.

Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: gadget: mv_udc: fix the warning of mv_udc_remove
Chao Xie [Thu, 24 Jan 2013 06:38:27 +0000 (01:38 -0500)]
usb: gadget: mv_udc: fix the warning of mv_udc_remove

The __exit_p() will be NULL if MODULE is no defined.
It will cause the warning. Removing __exit_p to remove
the warning.

Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: gadget: mv_udc: use devm_xxx for probe
Chao Xie [Thu, 24 Jan 2013 06:38:26 +0000 (01:38 -0500)]
usb: gadget: mv_udc: use devm_xxx for probe

use devm_xxx for udc driver probe. So we do need care about
the resources release in driver remove or failure handling
in driver probe.

Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: gadget: completely remove ->start/->stop
Felipe Balbi [Thu, 24 Jan 2013 09:00:15 +0000 (11:00 +0200)]
usb: gadget: completely remove ->start/->stop

Those have been deprecated for a long time and
previous patches just converted all remaining
users of those.

Since there are no in-tree users and we don't
want any new users for them, let's obliterate
every piece of code related to those calls.

Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: gadget: s3c2410: convert to udc_start/udc_stop
Felipe Balbi [Thu, 24 Jan 2013 15:20:46 +0000 (17:20 +0200)]
usb: gadget: s3c2410: convert to udc_start/udc_stop

Mechanical change making use of the new (can we
still call it new ?) interface for registering
UDC drivers.

Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: gadget: pxa27x_udc: convert to udc_start/udc_stop
Felipe Balbi [Thu, 24 Jan 2013 15:16:39 +0000 (17:16 +0200)]
usb: gadget: pxa27x_udc: convert to udc_start/udc_stop

Mechanical change making use of the new (can we
still call it new ?) interface for registering
UDC drivers.

Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: gadget: pxa25x_udc: convert to udc_start/udc_stop
Felipe Balbi [Thu, 24 Jan 2013 15:11:44 +0000 (17:11 +0200)]
usb: gadget: pxa25x_udc: convert to udc_start/udc_stop

Mechanical change making use of the new (can we
still call it new ?) interface for registering
UDC drivers.

Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: gadget: pch_udc: convert to udc_start/udc_stop
Felipe Balbi [Thu, 24 Jan 2013 08:55:59 +0000 (10:55 +0200)]
usb: gadget: pch_udc: convert to udc_start/udc_stop

Mechanical change making use of the new (can we
still call it new ?) interface for registering
UDC drivers.

Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: gadget: omap_udc: convert to udc_start/udc_stop
Felipe Balbi [Thu, 24 Jan 2013 08:52:52 +0000 (10:52 +0200)]
usb: gadget: omap_udc: convert to udc_start/udc_stop

Mechanical change making use of the new (can we
still call it new ?) interface for registering
UDC drivers.

Signed-off-by: Felipe Balbi <balbi@ti.com>
11 years agousb: gadget: m66592-udc: convert to udc_start/udc_stop
Felipe Balbi [Thu, 24 Jan 2013 08:49:17 +0000 (10:49 +0200)]
usb: gadget: m66592-udc: convert to udc_start/udc_stop

Mechanical change making use of the new (can we
still call it new ?) interface for registering
UDC drivers.

Signed-off-by: Felipe Balbi <balbi@ti.com>