current renesas_usbhs is using new style udc_start/stop from
af1d7056a5
(usb: gadget: renesas: convert to new style).
But bind() function will fail if it was called before
device_register() (or device_add()).
This patch modifies this issue.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Currently the driver tries to save context in the suspend path, but
will cause an abort if the device is already runtime suspended. This
happens, for example, if MUSB loaded/compiled-in, in host mode, but no
USB devices are attached. MUSB will be runtime suspended, but then
attempting a system suspend will crash due to the context save
being attempted while the device is disabled.
On OMAP, as of v3.1, the driver's ->runtime_suspend() callback will be
called late in the suspend path (by the PM domain layer) if the driver
is not already runtime suspended, ensuring a full shutdown.
Therefore, the context save is not needed in the ->suspend() method
since it will be called in the ->runtime_suspend() method anyways
(similarily for resume.)
NOTE: this leaves the suspend/resume methods basically empty (with
some FIXMEs and comments, but I'll leave it to the maintainers
to decide whether to remove them.
Cc: stable@vger.kernel.org
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix a regression that was introduced by commit
811c926c53 (USB: EHCI: fix HUB TT scheduling
issue with iso transfer).
We detect an error if next == start, but this means uframe 0 can't be allocated
anymore for iso transfer...
Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Julian Sikorski reports NEC uPD720200 does not work stable after suspend
and resume. Re-initialize the host in xhci_resume().
This should be backported to stable kernels as old as 2.6.37. The
kernel will need to include
commit c877b3b2ad
"xhci: Add reset on resume quirk for asrock p67 host"
for this patch to work.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Reported-by: Julian Sikorski <belegdol@gmail.com>
Tested-by: Julian Sikorski <belegdol@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This patch converts the drivers in drivers/usb/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.
Cc: Felipe Balbi <balbi@ti.com>
Cc: Li Yang <leoli@freescale.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes a memory leak reported by Catalin Marinas:
schedule_ptds() is called from isp1760_irq() and removes the qh from the
controlqhs queue but ep->hcpriv still points to the qh and therefore it is not
freed.
Shortly after this, the isp1760_endpoint_disable() function sets ep->hcpriv to
NULL and calls schedule_ptds() but since the corresponding qh is no longer in
the queue, it is simply forgotten and reported by kmemleak.
With this patch, the qh is always freed at endpoint_disable, instead, and the
corresponding entry removed from the queue head list.
While I was at it, I also replaced the lines in isp1760_endpoint_disable()
that removed remaining qtds from the qh with a WARN_ON check for non-empty qh,
in line with earlier comments from Alan Stern (linux-usb list, 2011-07-20).
Signed-off-by: Arvid Brodin <arvid.brodin@enea.com>
Tested-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Small code refactoring to ease the real fix in patch #2.
Signed-off-by: Arvid Brodin <arvid.brodin@enea.com>
Tested-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
xhci-hub used some numerical values for initialisation of root hub
descriptors. #define values are addded in usb 2.0 hub specification
file and these values are used for root hub characteristics
initialisation.
Also use some #defines in places where magic numbers are being used.
Signed-off-by: Aman Deep <amandeep3986@gmail.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
For OTG controller, the host driver will call function
otg_get_transceiver to get the otg transceiver, so we need to init the
OTG driver before HOST.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
qset->qh.link is an __le64 field and we should be using cpu_to_le64()
to fill it.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kingston DT 101 G2 replies a wrong tag while transporting, add an
unusal_devs entry to ignore the tag validation.
Signed-off-by: Qinglin Ye <yestyle@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This pulls in the latest USB bugfixes and helps a few of the drivers
merge nicer in the future due to changes in both branches.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'pm-freezer' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc: (24 commits)
freezer: fix wait_event_freezable/__thaw_task races
freezer: kill unused set_freezable_with_signal()
dmatest: don't use set_freezable_with_signal()
usb_storage: don't use set_freezable_with_signal()
freezer: remove unused @sig_only from freeze_task()
freezer: use lock_task_sighand() in fake_signal_wake_up()
freezer: restructure __refrigerator()
freezer: fix set_freezable[_with_signal]() race
freezer: remove should_send_signal() and update frozen()
freezer: remove now unused TIF_FREEZE
freezer: make freezing() test freeze conditions in effect instead of TIF_FREEZE
cgroup_freezer: prepare for removal of TIF_FREEZE
freezer: clean up freeze_processes() failure path
freezer: kill PF_FREEZING
freezer: test freezable conditions while holding freezer_lock
freezer: make freezing indicate freeze condition in effect
freezer: use dedicated lock instead of task_lock() + memory barrier
freezer: don't distinguish nosig tasks on thaw
freezer: remove racy clear_freeze_flag() and set PF_NOFREEZE on dead tasks
freezer: rename thaw_process() to __thaw_task() and simplify the implementation
...
Given we dont use anymore the struct net_device *dev argument, and this
interface brings litle benefit, remove netdev_{alloc|free}_page(), to
debloat include/linux/skbuff.h a bit.
(Some drivers used a mix of these interfaces and alloc_pages())
When allocating a page given to device for DMA transfer (device to
memory), it makes sense to use a cold one (__GFP_COLD)
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (48 commits)
USB: Fix Corruption issue in USB ftdi driver ftdi_sio.c
USB: option: add PID of Huawei E173s 3G modem
OHCI: final fix for NVIDIA problems (I hope)
USB: option: release new PID for ZTE 3G modem
usb: Netlogic: Fix HC_LENGTH call in ehci-xls.c
USB: storage: ene_ub6250: fix compile warnings
USB: option: add id for 3G dongle Model VT1000 of Viettel
USB: serial: pl2303: rm duplicate id
USB: pch_udc: Change company name OKI SEMICONDUCTOR to LAPIS Semiconductor
USB: pch_udc: Support new device LAPIS Semiconductor ML7831 IOH
usb-storage: Accept 8020i-protocol commands longer than 12 bytes
USB: quirks: adding more quirky webcams to avoid squeaky audio
powerpc/usb: fix type cast for address of ioremap to compatible with 64-bit
USB: at91: at91-ohci: fix set/get power
USB: cdc-acm: Fix disconnect() vs close() race
USB: add quirk for Logitech C600 web cam
USB: EHCI: fix HUB TT scheduling issue with iso transfer
USB: XHCI: resume root hubs when the controller resumes
USB: workaround for bug in old version of GCC
USB: ark3116 initialisation fix
...
The current implementation of set_freezable_with_signal() is buggy and
tricky to get right. usb-storage is the only user and its use can be
avoided trivially.
All usb-storage wants is to be able to sleep with timeout and get
woken up if freezing() becomes true. This can be trivially
implemented by doing interruptible wait w/ freezing() included in the
wait condition. There's no reason to use set_freezable_with_signal().
Perform interruptible wait on freezing() instead of using
set_freezable_with_signal(), which is scheduled for removal.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Seth Forshee <seth.forshee@canonical.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (86 commits)
ipv4: fix redirect handling
ping: dont increment ICMP_MIB_INERRORS
sky2: fix hang in napi_disable
sky2: enforce minimum ring size
bonding: Don't allow mode change via sysfs with slaves present
f_phonet: fix page offset of first received fragment
stmmac: fix pm functions avoiding sleep on spinlock
stmmac: remove spin_lock in stmmac_ioctl.
stmmac: parameters auto-tuning through HW cap reg
stmmac: fix advertising 1000Base capabilties for non GMII iface
stmmac: use mdelay on timeout of sw reset
sky2: version 1.30
sky2: used fixed RSS key
sky2: reduce default Tx ring size
sky2: rename up/down functions
sky2: pci posting issues
sky2: fix hang on shutdown (and other irq issues)
r6040: fix check against MCRO_HASHEN bit in r6040_multicast_list
MAINTAINERS: change email address for shemminger
pch_gbe: Move #include of module.h
...
The previous patch left an unused variable, I apologize.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This a use example of the regs32 utilities in debugfs, although
this fuse use ":" as separator between name and value, and debugs
uses "=" (as it looked to me a more common practice).
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix for ftdi_set_termios() glitching output
ftdi_set_termios() is constantly setting the baud rate, data bits and parity
unnecessarily on every call, . When called while characters are being
transmitted can cause the FTDI chip to corrupt the serial port bit stream
output by stalling the output half a bit during the output of a character.
Simple fix by skipping this setting if the baud rate/data bits/parity are
unchanged.
Signed-off-by: Andrew Worsley <amworsley@gmail.com>
Cc: stable <stable@vger.kernel.org>
----
I had a brief run with strace on the getty and it was doing ioctl()s on
each call but it didn't look relavant to the problem. I think the issue is
that XON/XOFF flow control was being implmented via hardware - for the ixoff
to allow the user to use XON/XOFF to control output. Unfortunately it would
send 3 Control URBs updating all of the settings after each piece of input
I am trying to work around the issue of gmail messing with the tab/spacing
by submitting via SMTP via gmail which I believe should fix the issue.
The patch is against v3.2-rc2 and compiles - but no additional testing in
this kernel has been done.
Thanks
Andrew
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Problems with NVIDIA's OHCI host controllers persist. After looking
carefully through the spec, I finally realized that when a controller
is reset it then automatically goes into a SUSPEND state in which it
is completely quiescent (no DMA and no IRQs) and from which it will
not awaken until the system puts it into the OPERATIONAL state.
Therefore there's no need to worry about controllers being in the
RESET state for extended periods, or remaining in the OPERATIONAL
state during system shutdown. The proper action for device
initialization is to put the controller into the RESET state (if it's
not there already) and then to issue a software reset. Similarly, the
proper action for device shutdown is simply to do a software reset.
This patch (as1499) implements such an approach. It simplifies
initialization and shutdown, and allows the NVIDIA shutdown-quirk code
to be removed.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Andre "Osku" Schmidt <andre.osku.schmidt@googlemail.com>
Tested-by: Arno Augustin <Arno.Augustin@web.de>
Cc: stable <stable@vger.kernel.org> [after tested in 3.2 for a while]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds new PIDs for ZTE 3G modem, after we confirm it and tested.
Thanks for Dan's work at kernel option devier.
Signed-off-by: Alvin.Zheng <zheng.zhijian@zte.com.cn>
Signed-off-by: wsalvin <wsalvin@yahoo.com.cn>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix compile error, HC_LENGTH now takes two parameters and ehci
needs to be passed as the first parameter.
Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use CONFIG_CPU_XLR instead of CONFIG_NLM_XLR, the NLM_XLR config
option is redundant and is being removed.
Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The 16-MB global limit on memory used by usbfs isn't suitable for all
people. It's a reasonable default, but there are applications
(especially for SuperSpeed devices) that need a lot more.
This patch (as1498) creates a writable module parameter for usbcore to
control the global limit. The default is still 16 MB, but users can
change it at runtime, even after usbcore has been loaded. As a
special case, setting the value to 0 is treated the same as the hard
limit of 2047 MB.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
For a long time people have complained about the limitations imposed
by usbfs. URBs coming from userspace are not allowed to have transfer
buffers larger than a more-or-less arbitrary maximum.
While it is generally a good idea to avoid large transfer buffers
(because the data has to be bounced to/from a contiguous kernel-space
buffer), it's not the kernel's job to enforce such limits. Programs
should be allowed to submit URBs as large as they like; if there isn't
sufficient contiguous memory available then the submission will fail
with a simple ENOMEM error.
On the other hand, we would like to prevent programs from submitting a
lot of small URBs and using up all the DMA-able kernel memory. To
that end, this patch (as1497) replaces the old limits on individual
transfer buffers with a single global limit on the total amount of
memory in use by usbfs. The global limit is set to 16 MB as a nice
compromise value: not too big, but large enough to hold about 300 ms
of data for high-speed transfers.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1496) unifies the error-return pathways of several
functions in the usbfs driver. This is not a very important change by
itself; it merely prepares the way for the next patch in this series.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1502) removes the UTF8-to-UTF16 conversion routine in
the USB gadget library and replaces it with a call to the equivalent
function in the NLS library.
The only downside worth noting is that the NLS library routine
requires the output buffer to be 16-bit aligned. This is always true
in the gadget code, because the output buffer is always a
usb_request buffer being used to send a string descriptor.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1500) removes all uses of the objectionable hcd->state
variable from the ohci-hcd family of drivers. It is replaced by a
private ohci->rh_state field, just as in uhci-hcd and ehci-hcd.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This converts the drivers in drivers/usb/* to use the
module_usb_driver() macro which makes the code smaller and a bit
simpler.
Added bonus is that it removes some unneeded kernel log messages about
drivers loading and/or unloading.
Cc: Simon Arlott <cxacru@fire.lp0.eu>
Cc: Duncan Sands <duncan.sands@free.fr>
Cc: Matthieu CASTET <castet.matthieu@free.fr>
Cc: Stanislaw Gruszka <stf_xl@wp.pl>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: Oliver Neukum <oliver@neukum.name>
Cc: Juergen Stuber <starblue@users.sourceforge.net>
Cc: Cesar Miquel <miquel@df.uba.ar>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Cc: Michael Hund <mhund@ld-didactic.de>
Cc: Zack Parsons <k3bacon@gmail.com>
Cc: Melchior FRANZ <mfranz@aon.at>
Cc: Tomoki Sekiyama <tomoki.sekiyama@gmail.com>
Cc: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We pull one byte (the MAC header) from the first fragment before the
fragment is actually appended. So the socket buffer length is 1, not 0.
Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
fixup usage of dma direction by introducing dma_transfer_direction,
this patch moves usb/renesas driver to use new enum
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
fixup usage of dma direction by introducing dma_transfer_direction,
this patch moves usb/musb driver to use new enum
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Use usb_translate_errors() to map USB-specific errors to errors
appropriate for user space (ENOMEM, ENODEV and EIO) in write.
Currently almost all serial drivers simply forward error codes from the
stack (e.g. from usb_submit_urb()), but these codes often have
different meanings in user-space. Doing the mapping in usb-serial core
simplifies driver code and allows for more consistent error reporting.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Remove code that was apparently copied from pl2303, disabled and then
never used.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Make sure we forward all error codes (e.g. ENOMEM) to USB serial core.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
All error messages from stack in open are being forwarded except for
one call to usb_submit_urb. Change this for consistency.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use usb_translate_errors() to map USB-specific errors to errors
appropriate for user space (ENOMEM, ENODEV and EIO) in open.
Currently almost all serial drivers simply forward error codes from the
stack (e.g. from usb_submit_urb()), but these codes often have
different meanings in user-space. Doing the mapping in usb-serial core
simplifies driver code and allows for more consistent error reporting.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Move usb_translate_errors from usb core to linux/usb.h as it is meant to
be accessed from drivers.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
