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GPIO alternate configuration is set when the USB is
connected and reset at USB disconnect.
Change-Id: I07d9c2ed5028879ecff309aa9e4ac25deac148f5
Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/27203
Reviewed-by: QATOOLS
Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com>
Reviewed-by: Philippe LANGLAIS <philippe.langlais@stericsson.com>
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AB V2 has eye diagram issues when drawing more than 100mA
from VBUS.So setting charging current to 100mA in case of standard host
Change-Id: Iaa5eb5751a4b0665fbe6f6148b712ffa9f96a06b
Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/25958
Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com>
Reviewed-by: Philippe LANGLAIS <philippe.langlais@stericsson.com>
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During dedicated charger disconnect, (USB PHY enable - delay -
disable) sequence is no longer done for platforms using ABv3.
This sequence was done for ABv2 to have multiple dedicated charger
detection working.
Change-Id: Id27e8f0da9ad65c9ae692048c162402453e18592
Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com>
Signed-off-by: dushyanth.sr <dushyanth.sr@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/25191
Reviewed-by: Philippe LANGLAIS <philippe.langlais@stericsson.com>
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This patch updates the PRCMU driver API to be the same
(as far as possible) in U8500 and U4500.
- <mach/prcmu-fw-api.h> has been renamed <mach/prcmu.h>.
- The platform specific APIs have moved to <mach/prcmu-db5500.h>
and <mach/prcmu-db8500.h> (but these should not be directly
included).
- The PRCMU QoS API has been put in <mach/prcmu-qos.h>.
ST Ericsson ID: 334772
ST Ericsson FOSS-OUT ID: trivial
ST Ericsson Linux next: 318371
Change-Id: I6ce117ec35ebf2e987178ccacce09afb554d2736
Signed-off-by: Mattias Nilsson <mattias.i.nilsson@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/23863
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
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missed TXPKTRDY check.
FIFOFLUSH is broken when a real packet is in the FIFO. This
hardware feature only works when the FIFO is empty.
The workaround described requires limiting the maximum
number of USB devices to 126, 128 - 2.
Signed-off-by: Hans Petter Selasky <hans.petter.selasky@stericsson.com>
Signed-off-by: Praveena Nadahally <praveen.nadahally@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
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Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
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Changes to the state made here conflicts with the changes made within the usb
controller driver
usb: otg: ab8500-usb: split phy_control into separate enable and disable functions
Preparing to add clocks, regulators and qos control
usb: otg: ab8500-usb: update interrupt registrations and handlers
Ab8500 v1 and v2 both do not update link status unless phy is disabled. This
patch adds host disconnect and peripheral disconnect interrupts for v2 as well.
Interrupts handlers are thus renamed to reflect this change. Interrupts setup
functions are combined into one as now there are common interrupts for v1 and
v2.
usb: otg: ab8500-usb: only disable previously enabled phy
Keep track of the transceiver mode only disable the mode which was previously
enabled.
usb: otg: ab8500-usb: add transceiver clock control
usb: otg: ab8500-usb: add power supply control
usb: otg: ab8500-usb: add platform quality of service hooks
usb: otg: ab8500-usb: update log message and add chip revision
usb: otg: ab8500-usb: workaround for multiple connection detection
This patch implements fix for ab8500 chip v2 bug # 31952
usb: otg: ab8500-usb: return correct error status in irq setup
Rreturn correct error status if platform_get_irq_byname() fails
Reported-by: Philippe Langlais <philippe.langlais@stericsson.com>
usb: otg: ab8500-usb: fix unbalanced clock and regulator disable warnings
To prevent clock and regulator frameworks from complaining, only disable the
host or peripheral phy if they were enabled.
Reported-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com>
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
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Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
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Mass-storage and file-storage gadgets align the length to maximum-packet-size
when preparing the request to receive CBW. This is unnecessary and prevents the
controller driver from knowing that a short-packet is expected.
It is incorrect to set short_not_ok when preparing the request to receive CBW.
CBW will be a short-packet so short_not_ok must not be set.
This patch makes bh->bulk_out_intended_length unnecessary so it is also removed.
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
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Although U8500 and U5500 platforms use paltform dma, Inventra dma specific code
can work for them for the most part. Only difference is for the Rx path where
this patch is making use of request->short_not_ok to select dma mode.
usb: musb: ux500: add dma name for ux500
usb: musb: ux500: add dma glue layer for ux500
DMA is mainly intended for mass storage class. Unaligned sizes and buffers
are not supported.
usb: musb: ux500: add configuration and build options for ux500 dma
usb: musb: clear AUTOSET while clearing DMAENAB
On the completion of tx dma, dma is disabled by clearing MUSB_TXCSR_DMAENAB in
TXCSR. If MUSB_TXCSR_AUTOSET was set in txstate() it will remain set although
it is not needed in PIO mode. Clear it as soon as it is not needed.
usb: musb: ux500: copy dma mask from platform device to musb device
musb code checks dma mask before calling dma hooks.
usb: musb: do not release dma channel on channel_program failure
Musb hcd releases dma channel (hw_ep->tx_channel / hw_ep->rx_channel ) if
->channel_program() fails. A null hw_ep->tx_channel is then used to continue
the transfer in pio mode. Next call to musb_ep_program() will try to allocate
the dma channel again.
This patch allows the transfer to continue in pio mode if ->channel_program()
fails without releasing the dma channel.
usb: musb: restore rxcsr on channel_program failure
Rxcsr is configured for dma transfer before calling ->channel_program().
Restore rxcsr if ->channel_program() fails.
usb: musb: ux500: enable host side dma support
Host side dma support for ux500 is enabled by piggybacking on Inventra dma
support.
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
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Signed-off-by: Andy Green <andy.green@linaro.org>
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Workaround possible OOPS when writing to musb mode with no gadget or host
comfiguration active
Signed-off-by: Jaswinder Singh <jaswinder.singh@linaro.org>
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workqueue.
Enable VBUS function can involve the I2C transfers which can't be
called from interrupt context. Moving the function call to work queqe.
Signed-off-by: Hema HK <hemahk@ti.com>
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Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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commit b214f191d95ba4b5a35aebd69cd129cf7e3b1884 upstream.
If I unplug a device while the UAS driver is loaded, I get an oops
in usb_free_streams(). This is because usb_unbind_interface() calls
usb_disable_interface() which calls usb_disable_endpoint() which sets
ep_out and ep_in to NULL. Then the UAS driver calls usb_pipe_endpoint()
which returns a NULL pointer and passes an array of NULL pointers to
usb_free_streams().
I think the correct fix for this is to check for the NULL pointer
in usb_free_streams() rather than making the driver check for this
situation. My original patch for this checked for dev->state ==
USB_STATE_NOTATTACHED, but the call to usb_disable_interface() is
conditional, so not all drivers would want this check.
Note from Sarah Sharp: This patch does avoid a potential dereference,
but the real fix (which will be implemented later) is to set the
.soft_unbind flag in the usb_driver structure for the UAS driver, and
all drivers that allocate streams. The driver should free any streams
when it is unbound from the interface. This avoids leaking stream rings
in the xHCI driver when usb_disable_interface() is called.
This should be queued for stable trees back to 2.6.35.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 2dea75d96ade3c7cd2bfe73f99c7b3291dc3d03a upstream.
Currently, when resetting a device, xHCI driver disables all but one
endpoints and frees their rings, but leaves alone any streams that
might have been allocated. Later, when users try to free allocated
streams, we oops in xhci_setup_no_streams_ep_input_ctx() because
ep->ring is NULL.
Let's free not only rings but also stream data as well, so that
calling free_streams() on a device that was reset will be safe.
This should be queued for stable trees back to 2.6.35.
Reviewed-by: Micah Elizabeth Scott <micah@vmware.com>
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit dfa49c4ad120a784ef1ff0717168aa79f55a483a upstream.
When parsing exponent-expressed intervals we subtract 1 from the
value and then expect it to match with original + 1, which is
highly unlikely, and we end with frequent spew:
usb 3-4: ep 0x83 - rounding interval to 512 microframes
Also, parsing interval for fullspeed isochronous endpoints was
incorrect - according to USB spec they use exponent-based
intervals (but xHCI spec claims frame-based intervals). I trust
USB spec more, especially since USB core agrees with it.
This should be queued for stable kernels back to 2.6.31.
Reviewed-by: Micah Elizabeth Scott <micah@vmware.com>
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 5a6c2f3ff039154872ce597952f8b8900ea0d732 upstream.
Macro arguments used in expressions need to be enclosed in parenthesis
to avoid unpleasant surprises.
This should be queued for kernels back to 2.6.31
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 2868a2b1ba8f9c7f6c4170519ebb6c62934df70e upstream.
Isochronous and interrupt SuperSpeed endpoints use the same mechanisms
for decoding bInterval values as HighSpeed ones so adjust the code
accordingly.
Also bandwidth reservation for SuperSpeed matches highspeed, not
low/full speed.
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 94ae4976e253757e9b03a44d27d41b20f1829d80 upstream.
This patch (as1458) fixes a problem affecting ultra-reliable systems:
When hardware failover of an EHCI controller occurs, the data
structures do not get released correctly. This is because the routine
responsible for removing unused QHs from the async schedule assumes
the controller is running properly (the frame counter is used in
determining how long the QH has been idle) -- but when a failover
causes the controller to be electronically disconnected from the PCI
bus, obviously it stops running.
The solution is simple: Allow scan_async() to remove a QH from the
async schedule if it has been idle for long enough _or_ if the
controller is stopped.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-Tested-by: Dan Duval <dan.duval@stratus.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit cb62d65f966146a39fdde548cb474dacf1d00fa5 upstream.
There are two -ENODEV error paths in qcprobe where the allocated private
data is not freed, this patch adds the two missing kfrees to avoid
leaking memory on the error path
Signed-off-by: Steven Hardy <shardy@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 99ab3f9e4eaec35fd2d7159c31b71f17f7e613e3 upstream.
Rework the qcprobe logic such that serial->private is not set when
qcprobe exits with -ENODEV, otherwise serial->private will point to freed
memory on -ENODEV
Signed-off-by: Steven Hardy <shardy@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 10c9ab15d6aee153968d150c05b3ee3df89673de upstream.
qcprobe function allocates serial->private but this is never freed, this
patch adds a new function qc_release() which frees serial->private, after
calling usb_wwan_release
Signed-off-by: Steven Hardy <shardy@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 80f9df3e0093ad9f1eeefd2ff7fd27daaa518d25 upstream.
Bind only modem AT command endpoint to option.
Signed-off-by: Marius B. Kotsbak <marius@kotsbak.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit c53c2fab40cf16e13af66f40bfd27200cda98d2f upstream.
usb serial: ftdi_sio: add two missing USB ID's for Hameg interfaces HO720
and HO730
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 11a31d84129dc3133417d626643d714c9df5317e upstream.
Add PID 0x0103 for serial port of the OCT DK201 docking station.
Reported-by: Jan Hoogenraad <jan@hoogenraad.net>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 5a9443f08c83c294c5c806a689c1184b27cb26b3 upstream.
I added new ProdutIds for two devices from CTI GmbH Leipzig.
Signed-off-by: Christian Simon <simon@swine.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 7a180e70cfc56e131bfe4796773df2acfc7d4180 upstream.
Due to the recent changes to musb's glue layers,
we can't compile musb-hdrc as a module - compilation
will break due to undefined symbol musb_debug. In
order to fix that, we need a big re-work of the
debug support on the MUSB driver.
Because that would mean a lot of new code coming
into the -rc series, it's best to defer that to
next merge window and for now just disable module
support for MUSB.
Once we get the refactor of the debugging support
done, we can simply revert this patch and things
will go back to normal again.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Without this an OOPS can be seen at shutdown because the peripheral
unit is unclocked, leading to an "imprecise external abort"
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
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0e9882b4fb8703f13921279fe4a6592574f92c62
from Merge commit 'v2.6.38.1' into linaro-2.6.38
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
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Conflicts:
drivers/usb/core/hcd-pci.c
drivers/usb/host/isp1760-hcd.c
include/linux/usb/ch9.h
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commit 7e7797e7f6f7bfab73fca02c65e40eaa5bb9000c upstream.
Fix potential null-pointer exception on disconnect introduced by commit
11ea859d64b69a747d6b060b9ed1520eab1161fe (USB: additional power savings
for cdc-acm devices that support remote wakeup).
Only access acm->dev after making sure it is non-null in control urb
completion handler.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 15e5bee33ffc11d0e5c6f819a65e7881c5c407be upstream.
Must check return value of tty_port_tty_get.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 23b80550e2aa61d0ba3af98b831b9195be0db9ee upstream.
Prevent read urbs from being resubmitted from tasklet after port close.
The receive tasklet was not disabled on port close, which could lead to
corruption of receive lists on consecutive port open. In particular,
read urbs could be re-submitted before port open, added to free list in
open, and then added a second time to the free list in the completion
handler.
cdc-acm.c: Entering acm_tty_open.
cdc-acm.c: acm_control_msg: rq: 0x22 val: 0x3 len: 0x0 result: 0
cdc-acm.c: Entering acm_rx_tasklet
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50da280, rcv 0xf57fbc24, buf 0xf57fbd64
cdc-acm.c: set line: 115200 0 0 8
cdc-acm.c: acm_control_msg: rq: 0x20 val: 0x0 len: 0x7 result: 7
cdc-acm.c: acm_tty_close
cdc-acm.c: acm_port_down
cdc-acm.c: acm_control_msg: rq: 0x22 val: 0x0 len: 0x0 result: 0
cdc-acm.c: acm_ctrl_irq - urb shutting down with status: -2
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50da300, rcv 0xf57fbc10, buf 0xf57fbd50
cdc-acm.c: Entering acm_read_bulk with status -2
cdc_acm 4-1:1.1: Aborting, acm not ready
cdc-acm.c: Entering acm_read_bulk with status -2
cdc_acm 4-1:1.1: Aborting, acm not ready
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50da380, rcv 0xf57fbbfc, buf 0xf57fbd3c
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50da400, rcv 0xf57fbbe8, buf 0xf57fbd28
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50da480, rcv 0xf57fbbd4, buf 0xf57fbd14
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50da900, rcv 0xf57fbbc0, buf 0xf57fbd00
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50da980, rcv 0xf57fbbac, buf 0xf57fbcec
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50daa00, rcv 0xf57fbb98, buf 0xf57fbcd8
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50daa80, rcv 0xf57fbb84, buf 0xf57fbcc4
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50dab00, rcv 0xf57fbb70, buf 0xf57fbcb0
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50dab80, rcv 0xf57fbb5c, buf 0xf57fbc9c
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50dac00, rcv 0xf57fbb48, buf 0xf57fbc88
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50dac80, rcv 0xf57fbb34, buf 0xf57fbc74
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50dad00, rcv 0xf57fbb20, buf 0xf57fbc60
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50dad80, rcv 0xf57fbb0c, buf 0xf57fbc4c
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50da880, rcv 0xf57fbaf8, buf 0xf57fbc38
cdc-acm.c: Entering acm_tty_open.
cdc-acm.c: acm_control_msg: rq: 0x22 val: 0x3 len: 0x0 result: 0
cdc-acm.c: Entering acm_rx_tasklet
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50da280, rcv 0xf57fbc24, buf 0xf57fbd64
cdc-acm.c: Entering acm_tty_write to write 3 bytes,
cdc-acm.c: Get 3 bytes...
cdc-acm.c: acm_write_start susp_count: 0
cdc-acm.c: Entering acm_read_bulk with status 0
------------[ cut here ]------------
WARNING: at /home/johan/src/linux/linux-2.6/lib/list_debug.c:57 list_del+0x10c/0x120()
Hardware name: Vostro 1520
list_del corruption. next->prev should be f57fbc10, but was f57fbaf8
Modules linked in: cdc_acm
Pid: 3, comm: ksoftirqd/0 Not tainted 2.6.37+ #39
Call Trace:
[<c103c7e2>] warn_slowpath_common+0x72/0xa0
[<c11dd8ac>] ? list_del+0x10c/0x120
[<c11dd8ac>] ? list_del+0x10c/0x120
[<c103c8b3>] warn_slowpath_fmt+0x33/0x40
[<c11dd8ac>] list_del+0x10c/0x120
[<f8051dbf>] acm_rx_tasklet+0xef/0x3e0 [cdc_acm]
[<c135465d>] ? net_rps_action_and_irq_enable+0x6d/0x80
[<c1042bb6>] tasklet_action+0xe6/0x140
[<c104342f>] __do_softirq+0xaf/0x210
[<c1043380>] ? __do_softirq+0x0/0x210
<IRQ> [<c1042c9a>] ? run_ksoftirqd+0x8a/0x1c0
[<c1042c10>] ? run_ksoftirqd+0x0/0x1c0
[<c105ac24>] ? kthread+0x74/0x80
[<c105abb0>] ? kthread+0x0/0x80
[<c100337a>] ? kernel_thread_helper+0x6/0x10
---[ end trace efd9a11434f0082e ]---
------------[ cut here ]------------
WARNING: at /home/johan/src/linux/linux-2.6/lib/list_debug.c:57 list_del+0x10c/0x120()
Hardware name: Vostro 1520
list_del corruption. next->prev should be f57fbd50, but was f57fbdb0
Modules linked in: cdc_acm
Pid: 3, comm: ksoftirqd/0 Tainted: G W 2.6.37+ #39
Call Trace:
[<c103c7e2>] warn_slowpath_common+0x72/0xa0
[<c11dd8ac>] ? list_del+0x10c/0x120
[<c11dd8ac>] ? list_del+0x10c/0x120
[<c103c8b3>] warn_slowpath_fmt+0x33/0x40
[<c11dd8ac>] list_del+0x10c/0x120
[<f8051dd6>] acm_rx_tasklet+0x106/0x3e0 [cdc_acm]
[<c135465d>] ? net_rps_action_and_irq_enable+0x6d/0x80
[<c1042bb6>] tasklet_action+0xe6/0x140
[<c104342f>] __do_softirq+0xaf/0x210
[<c1043380>] ? __do_softirq+0x0/0x210
<IRQ> [<c1042c9a>] ? run_ksoftirqd+0x8a/0x1c0
[<c1042c10>] ? run_ksoftirqd+0x0/0x1c0
[<c105ac24>] ? kthread+0x74/0x80
[<c105abb0>] ? kthread+0x0/0x80
[<c100337a>] ? kernel_thread_helper+0x6/0x10
---[ end trace efd9a11434f0082f ]---
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50da300, rcv 0xf57fbc10, buf 0xf57fbd50
cdc-acm.c: disconnected from network
cdc-acm.c: acm_rx_tasklet: sending urb 0xf50da380, rcv 0xf57fbbfc, buf 0xf57fbd3c
cdc-acm.c: Entering acm_rx_tasklet
------------[ cut here ]------------
WARNING: at /home/johan/src/linux/linux-2.6/lib/list_debug.c:48 list_del+0xd5/0x120()
Hardware name: Vostro 1520
list_del corruption, next is LIST_POISON1 (00100100)
Modules linked in: cdc_acm
Pid: 3, comm: ksoftirqd/0 Tainted: G W 2.6.37+ #39
Call Trace:
[<c103c7e2>] warn_slowpath_common+0x72/0xa0
[<c11dd875>] ? list_del+0xd5/0x120
[<c11dd875>] ? list_del+0xd5/0x120
[<c103c8b3>] warn_slowpath_fmt+0x33/0x40
[<c11dd875>] list_del+0xd5/0x120
[<f8051fac>] acm_rx_tasklet+0x2dc/0x3e0 [cdc_acm]
[<c106dbab>] ? trace_hardirqs_on+0xb/0x10
[<c1042b30>] ? tasklet_action+0x60/0x140
[<c1042bb6>] tasklet_action+0xe6/0x140
[<c104342f>] __do_softirq+0xaf/0x210
[<c1043380>] ? __do_softirq+0x0/0x210
<IRQ> [<c1042c9a>] ? run_ksoftirqd+0x8a/0x1c0
[<c1042c10>] ? run_ksoftirqd+0x0/0x1c0
[<c105ac24>] ? kthread+0x74/0x80
[<c105abb0>] ? kthread+0x0/0x80
[<c100337a>] ? kernel_thread_helper+0x6/0x10
---[ end trace efd9a11434f00830 ]---
BUG: unable to handle kernel paging request at 00200200
IP: [<c11dd7bd>] list_del+0x1d/0x120
*pde = 00000000
Oops: 0000 [#1] PREEMPT SMP
last sysfs file: /sys/devices/pci0000:00/0000:00:1a.1/usb4/4-1/4-1:1.0/tty/ttyACM0/uevent
Modules linked in: cdc_acm
Pid: 3, comm: ksoftirqd/0 Tainted: G W 2.6.37+ #39 0T816J/Vostro 1520
EIP: 0060:[<c11dd7bd>] EFLAGS: 00010046 CPU: 0
EIP is at list_del+0x1d/0x120
EAX: f57fbd3c EBX: f57fb800 ECX: ffff8000 EDX: 00200200
ESI: f57fbe90 EDI: f57fbd3c EBP: f600bf54 ESP: f600bf3c
DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
Process ksoftirqd/0 (pid: 3, ti=f600a000 task=f60791c0 task.ti=f6082000)
Stack:
c1527e84 00000030 c1527e54 00100100 f57fb800 f57fbd3c f600bf98 f8051fac
f8053104 f8052b94 f600bf6c c106dbab f600bf80 00000286 f60791c0 c1042b30
f57fbda8 f57f5800 f57fbdb0 f57fbd80 f57fbe7c c1656b04 00000000 f600bfb0
Call Trace:
[<f8051fac>] ? acm_rx_tasklet+0x2dc/0x3e0 [cdc_acm]
[<c106dbab>] ? trace_hardirqs_on+0xb/0x10
[<c1042b30>] ? tasklet_action+0x60/0x140
[<c1042bb6>] ? tasklet_action+0xe6/0x140
[<c104342f>] ? __do_softirq+0xaf/0x210
[<c1043380>] ? __do_softirq+0x0/0x210
<IRQ>
[<c1042c9a>] ? run_ksoftirqd+0x8a/0x1c0
[<c1042c10>] ? run_ksoftirqd+0x0/0x1c0
[<c105ac24>] ? kthread+0x74/0x80
[<c105abb0>] ? kthread+0x0/0x80
[<c100337a>] ? kernel_thread_helper+0x6/0x10
Code: ff 48 14 e9 57 ff ff ff 90 90 90 90 90 90 55 89 e5 83 ec 18 81 38 00 01 10 00 0f 84 9c 00 00 00 8b 50 04 81 fa 00 02 20 00 74 33 <8b> 12 39 d0 75 5c 8b 10 8b 4a 04 39 c8 0f 85 b5 00 00 00 8b 48
EIP: [<c11dd7bd>] list_del+0x1d/0x120 SS:ESP 0068:f600bf3c
CR2: 0000000000200200
---[ end trace efd9a11434f00831 ]---
Kernel panic - not syncing: Fatal exception in interrupt
Pid: 3, comm: ksoftirqd/0 Tainted: G D W 2.6.37+ #39
Call Trace:
[<c13fede1>] ? printk+0x1d/0x24
[<c13fecce>] panic+0x66/0x15c
[<c10067df>] oops_end+0x8f/0x90
[<c1025476>] no_context+0xc6/0x160
[<c10255a8>] __bad_area_nosemaphore+0x98/0x140
[<c103cf68>] ? release_console_sem+0x1d8/0x210
[<c1025667>] bad_area_nosemaphore+0x17/0x20
[<c1025a49>] do_page_fault+0x279/0x420
[<c1006a8f>] ? show_trace+0x1f/0x30
[<c13fede1>] ? printk+0x1d/0x24
[<c10257d0>] ? do_page_fault+0x0/0x420
[<c140333b>] error_code+0x5f/0x64
[<c103007b>] ? select_task_rq_fair+0x37b/0x6a0
[<c10257d0>] ? do_page_fault+0x0/0x420
[<c11dd7bd>] ? list_del+0x1d/0x120
[<f8051fac>] acm_rx_tasklet+0x2dc/0x3e0 [cdc_acm]
[<c106dbab>] ? trace_hardirqs_on+0xb/0x10
[<c1042b30>] ? tasklet_action+0x60/0x140
[<c1042bb6>] tasklet_action+0xe6/0x140
[<c104342f>] __do_softirq+0xaf/0x210
[<c1043380>] ? __do_softirq+0x0/0x210
<IRQ> [<c1042c9a>] ? run_ksoftirqd+0x8a/0x1c0
[<c1042c10>] ? run_ksoftirqd+0x0/0x1c0
[<c105ac24>] ? kthread+0x74/0x80
[<c105abb0>] ? kthread+0x0/0x80
[<c100337a>] ? kernel_thread_helper+0x6/0x10
panic occurred, switching back to text console
------------[ cut here ]------------
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 878b753e32ca765cd346a5d3038d630178ec78ff upstream.
In the WDM class driver a disconnect event leads to calls to
usb_free_coherent to put back two USB DMA buffers allocated earlier.
The call to usb_free_coherent uses a different size parameter
(desc->wMaxCommand) than the corresponding call to usb_alloc_coherent
(desc->bMaxPacketSize0).
When a disconnect event occurs, this leads to 'bad dma' complaints
from usb core because the USB DMA buffer is being pushed back to the
'buffer-2048' pool from which it has not been allocated.
This patch against the most recent linux-2.6 kernel ensures that the
parameters used by usb_alloc_coherent & usb_free_coherent calls in
cdc-wdm.c match.
Signed-off-by: Robert Lukassen <robert.lukassen@tomtom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit adaa3c6342b249548ea830fe8e02aa5b45be8688 upstream.
My testprog do a lot of bitbang - after hours i got following warning and my machine lockups:
WARNING: at /build/buildd/linux-2.6.38/lib/kref.c:34
After debugging uss720 driver i discovered that the completion callback was called before
usb_submit_urb returns. The callback frees the request structure that is krefed on return by
usb_submit_urb.
Signed-off-by: Peter Holik <peter@holik.at>
Acked-by: Thomas Sailer <t.sailer@alumni.ethz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 45567c28d29a8766a67c53f898d502aef71b7ef0 upstream.
The common code has a "get" in the middle, but each implementation
does not have it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 8f7e7b87ec7c3202941ef2770bacd353ab93368b upstream.
Signed-off-by: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 417ddf86c8c499fada439b8ee89bb4c6f282ed6c upstream.
The modularization of the Blackfin driver set the name to "musb-blackfin"
in all the boards, but "musb-bfin" in the driver itself. Since the driver
file name uses "blackfin", change the driver to "musb-blackfin". This is
also easier as it's only one file to change.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit b5a3b3d985493c173925907adfebf3edab236fe7 upstream.
This patch (as1453) fixes a long-standing bug in the ehci-hcd driver.
There is no need to set the Halt bit in the overlay region for an
unlinked or blocked QH. Contrary to what the comment says, setting
the Halt bit does not cause the QH to be patched later; that decision
(made in qh_refresh()) depends only on whether the QH is currently
pointing to a valid qTD. Likewise, setting the Halt bit does not
prevent completions from activating the QH while it is "stopped"; they
are prevented by the fact that qh_completions() temporarily changes
qh->qh_state to QH_STATE_COMPLETING.
On the other hand, there are circumstances in which the QH will be
reactivated _without_ being patched; this happens after an URB beyond
the head of the queue is unlinked. Setting the Halt bit will then
cause the hardware to see the QH with both the Active and Halt bits
set, an invalid combination that will prevent the queue from
advancing and may even crash some controllers.
Apparently the only reason this hasn't been reported before is that
unlinking URBs from the middle of a running queue is quite uncommon.
However Test 17, recently added to the usbtest driver, does exactly
this, and it confirms the presence of the bug.
In short, there is no reason to set the Halt bit for an unlinked or
blocked QH, and there is a very good reason not to set it. Therefore
the code that sets it is removed.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Andiry Xu <andiry.xu@amd.com>
CC: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 9d02b42614149ebccf12c9c580601ed01bd83070 upstream.
When `echo Y > /sys/module/usbcore/parameters/usbfs_snoop` and
usb_control_msg() returns error, a lot of kernel memory is dumped to dmesg
until unhandled kernel paging request occurs.
Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This silences warnings such as
drivers/video/tmiofb.c: In function 'tmiofb_hw_init':
drivers/video/tmiofb.c:270: warning: initialization discards qualifiers from pointer target type
These were added by me in commit 2a79bb1d.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
(cherry picked from commit 944dc03551f6e812c00e586edba84b28c52ffe8c)
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No need to explicitly set the cell's platform_data/data_size.
Modify clients to use mfd_get_cell helper function instead of
accessing platform_data directly.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
(cherry picked from commit 7d76ac15ad1a8d8b1a7b7b4f6be7a9d8dfd225bf)
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Conflicts:
arch/arm/mach-omap2/board-omap3evm.c
arch/arm/mach-omap2/clock3xxx_data.c
arch/arm/mach-omap2/usb-musb.c
arch/arm/plat-omap/include/plat/usb.h
drivers/usb/musb/musb_core.h
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Conflicts:
arch/arm/mach-mxs/gpio.c
drivers/usb/gadget/fsl_mxc_udc.c
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commit 500132a0f26ad7d9916102193cbc6c1b1becb373 upstream.
Use the Mult and bMaxBurst values from the endpoint companion
descriptor to calculate the max length of an isoc transfer.
Add USB_SS_MULT macro to access Mult field of bmAttributes, at
Sarah's suggestion.
This patch should be queued for the 2.6.36 and 2.6.37 stable trees, since
those were the first kernels to have isochronous support for SuperSpeed
devices.
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 01a1fdb9a7afa5e3c14c9316d6f380732750b4e4 upstream.
When an endpoint stalls, we need to update the xHCI host's internal
dequeue pointer to move it past the stalled transfer. This includes
updating the cycle bit (TRB ownership bit) if we have moved the dequeue
pointer past a link TRB with the toggle cycle bit set.
When we're trying to find the new dequeue segment, find_trb_seg() is
supposed to keep track of whether we've passed any link TRBs with the
toggle cycle bit set. However, this while loop's body
while (cur_seg->trbs > trb ||
&cur_seg->trbs[TRBS_PER_SEGMENT - 1] < trb) {
Will never get executed if the ring only contains one segment.
find_trb_seg() will return immediately, without updating the new cycle
bit. Since find_trb_seg() has no idea where in the segment the TD that
stalled was, make the caller, xhci_find_new_dequeue_state(), check for
this special case and update the cycle bit accordingly.
This patch should be queued to kernels all the way back to 2.6.31.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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