Commit graph

288084 commits

Author SHA1 Message Date
Felipe Balbi
a698908d3b usb: gadget: add generic map/unmap request utilities
such utilities are currently duplicated on all UDC
drivers basically with the same structure. Let's group
all implementations into one generic implementation
and get rid of that duplication.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-28 14:48:23 +02:00
Cyril Roelandt
c15e03e155 usb: amd5536udc: Remove old CVS markers
Git does not care about CVS markers.

Signed-off-by: Cyril Roelandt <tipecaml@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-27 16:35:14 +02:00
Cyril Roelandt
34af373865 usb: amd5536udc: Fix the type of ep_string
Use "static const char *const" instead of "static const char *".

Signed-off-by: Cyril Roelandt <tipecaml@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-27 16:35:06 +02:00
Cyril Roelandt
1b8860df38 usb: amd5536udc: use the DEFINE_PCI_DEVICE_TABLE macro
Use DEFINE_PCI_DEVICE_TABLE instead of "const struct pci_device_id".

Signed-off-by: Cyril Roelandt <tipecaml@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-27 16:34:12 +02:00
Cyril Roelandt
1435db486c usb: amd5536udc: Fix indentation
Remove an unnecessary level of indentation.

Signed-off-by: Cyril Roelandt <tipecaml@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-27 16:33:37 +02:00
Cyril Roelandt
5647a149e2 usb: amd5536udc: Fix coding style issues.
Remove unnecessary whitespaces.

Signed-off-by: Cyril Roelandt <tipecaml@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-27 16:33:21 +02:00
Cyril Roelandt
170b778ffb usb: amd5536udc: Fix brace coding style issues.
Remove a bunch of unneeded braces.

Signed-off-by: Cyril Roelandt <tipecaml@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-27 16:32:50 +02:00
Heikki Krogerus
6e13c6505c usb: otg: Convert all users to pass struct usb_otg for OTG functions
This changes the otg functions so that they receive struct
otg instead of struct usb_phy as parameter and
converts all users of these functions to pass the otg member
of their usb_phy.

Includes fixes to IMX code from Sascha Hauer.

[ balbi@ti.com : fixed a compile warning on ehci-mv.c ]

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Acked-by: Li Yang <leoli@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-27 15:41:52 +02:00
Heikki Krogerus
136ced891a usb: otg: Remove OTG specific members from usb_phy
All the drivers are now converted to use struct usb_otg, so
removing the OTG specific members from struct usb_phy.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-27 15:41:51 +02:00
Heikki Krogerus
b96d3b0836 usb: Convert all users to new usb_phy
Use the new usb_phy_* functions with transceiver
operations instead of the old otg functions.

Includes fixes from Sascha Hauer.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Acked-by: Li Yang <leoli@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-27 15:41:48 +02:00
Heikki Krogerus
b1c711d629 usb: otg: mv_otg: Start using struct usb_otg
Use struct usb_otg members with OTG specific functions instead
of usb_phy members.

[ balbi@ti.com : fixed a compile error on isp1704_charger.c ]

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-27 15:41:22 +02:00
Scott Dial
6d161b99f8 usb-serial: Add support for the Sealevel SeaLINK+8 2038-ROHS device
This patch adds new device IDs to the ftdi_sio module to support
the new Sealevel SeaLINK+8 2038-ROHS device.

Signed-off-by: Scott Dial <scott.dial@scientiallc.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 16:15:48 -08:00
Neil Zhang
a219b666e8 usb: host: add dependence for USB_EHCI_MV
This ehci driver is mainly designed to support host controller found on
Marvell PXA and MMP Soc series.
Add the dependence to avoid the potential build failure which may
include two EHCI controller drivers.

Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 13:40:05 -08:00
Jingoo Han
2b4ffe31a2 USB: ohci-exynos: replace hcd->state with ohci->rh_state
This patch removes uses of hcd->state and replaces hcd->state with
ohci->rh_state field.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 13:40:04 -08:00
Deepak Sikri
8c1b369394 USB: ehci-spear: Add PM support
This patch adds support for standby/S2R/hibernate for ehci-spear driver.

Signed-off-by: Deepak Sikri <deepak.sikri@st.com>
Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 13:40:04 -08:00
jwboyer@redhat.com
4898e07174 USB: ums_realtek: do not use stack memory for DMA in __do_config_autodelink
__do_config_autodelink passes the data variable to the transport function.
If the calling functions pass a stack variable, this will eventually trigger
a DMA-API debug backtrace for mapping stack memory in the DMA buffer.  Fix
this by calling kmemdup for the passed data instead.

Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 13:37:45 -08:00
Shengzhou Liu
28c56ea143 powerpc/usb: fix bug of kernel hang when initializing usb
If USB UTMI PHY is not enable, writing to portsc register will lead to
kernel hang during boot up.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 13:37:45 -08:00
Peter Chen
e90fc3cb08 usb: Fix build error due to dma_mask is not at pdev_archdata at ARM
When build i.mx platform with imx_v6_v7_defconfig, and after adding
USB Gadget support, it has below build error:

CC      drivers/usb/host/fsl-mph-dr-of.o
drivers/usb/host/fsl-mph-dr-of.c: In function 'fsl_usb2_device_register':
drivers/usb/host/fsl-mph-dr-of.c:97: error: 'struct pdev_archdata'
has no member named 'dma_mask'

It has discussed at: http://www.spinics.net/lists/linux-usb/msg57302.html

For PowerPC, there is dma_mask at struct pdev_archdata, but there is
no dma_mask at struct pdev_archdata for ARM. The pdev_archdata is
related to specific platform, it should NOT be accessed by
cross platform drivers, like USB.

The code for pdev_archdata should be useless, as for PowerPC,
it has already gotten the value for pdev->dev.dma_mask at function
arch_setup_pdev_archdata of arch/powerpc/kernel/setup-common.c.

Tested-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 13:37:44 -08:00
Masanari Iida
855ef452ee usb: Fix typo in ehci-dbg.c
Correct spelling "peridic" to "periodic" in
drivers/usb/host/ehci-dbg.c

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 13:12:16 -08:00
Tobias Klauser
aefd492068 usb: isp1362-hcd: Convert to module_platform_driver
Move the usb_disabled() check to the probe function and get rid of the
rather pointless message on module load.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 13:12:16 -08:00
Oliver Neukum
18c75720e6 USB: allow users to run setserial with cdc-acm
We had a user report that running setserial on /dev/ttyACM0 didn't work.
He pointed at an old patch by Oliver Neukum from 2008 that never went anywhere..
http://permalink.gmane.org/gmane.linux.usb.general/9236

I made some minor changes to get it to apply again, and got the user to retest on 3.1,
and he reported it worked for him. https://bugzilla.redhat.com/show_bug.cgi?id=787607

The diff below is against 3.3rc. The only difference between this and
the version the user tested is the removal of the if (!ACM_READY) test
Havard removed ACM_READY in 99823f457d
I'm unclear if there's need for a different test in its place.

From: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 13:12:15 -08:00
Pan Jiafei
4c95432682 USB: ehci-fsl: Turn on cache snooping on MPC8xxx
If a MPC8xxx was being used, 'have_sysif_regs' should be set and
it should setup cache snooping for all the 4GB space on both PPC32
and PPC64.

Signed-off-by: Pan Jiafei <Jiafei.Pan@freescale.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 13:12:15 -08:00
Ben Hutchings
b7a2055453 cdc-wdm: Don't clear WDM_READ unless entire read buffer is emptied
The WDM_READ flag is cleared later iff desc->length is reduced to 0.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Tested-by: Bjørn Mork <bjorn@mork.no>
Cc: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 13:12:14 -08:00
Neil Zhang
0cedc4e1c8 usb: host: remove ehci-pxa168.c
Since ehci-mv.c can cover Marvell PXA and MMP series including PXA168,
so this driver seems redundant now.

Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Cc: <tanmay.upadhyay@einfochips.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 13:12:14 -08:00
Ben Hutchings
711c68b3c0 cdc-wdm: Fix more races on the read path
We must not allow the input buffer length to change while we're
shuffling the buffer contents.  We also mustn't clear the WDM_READ
flag after more data might have arrived.  Therefore move both of these
into the spinlocked region at the bottom of wdm_read().

When reading desc->length without holding the iuspin lock, use
ACCESS_ONCE() to ensure the compiler doesn't re-read it with
inconsistent results.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Tested-by: Bjørn Mork <bjorn@mork.no>
Cc: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 13:11:56 -08:00
Dan Williams
c192c8e71a USB: qcserial: don't grab QMI port on Gobi 1000 devices
Gobi 1000 devices have a different port layout, which wasn't respected
by the current driver, and thus it grabbed the QMI/net port.  In the
near future we'll be attaching another driver to the QMI/net port for
these devices (cdc-wdm and qmi_wwan) so make sure the qcserial driver
doesn't claim them.  This patch also prevents qcserial from binding to
interfaces 0 and 1 on 1K devices because those interfaces do not
respond.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 12:53:38 -08:00
Greg Kroah-Hartman
f799e76783 USB: serial: remove usb_serial_register and usb_serial_deregister
No one uses them anymore, they should be using the safer
usb_serial_register_drivers() and usb_serial_deregister_drivers()
functions instead.

Thanks to Alan Stern for writing these functions and porting all
in-kernel users to them.

Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 12:50:30 -08:00
Greg Kroah-Hartman
8c49fc99b6 usb-serial: use new registration API in keyspan_pda.c
This was missed in Alan's last round of conversions.

Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 12:49:34 -08:00
Alan Stern
69276a33bd usb-serial: use new registration API in staging drivers
This patch (as1530) modifies the following usb-serial drivers from
drivers/staging to utilize the new usb_serial_{de}register_drivers()
routines:

	quatech_usb2 and serqt_usb2.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 12:39:22 -08:00
Alan Stern
29618e9fb5 usb-serial: use new registration API in [t-z]* drivers
This patch (as1529) modifies the following usb-serial drivers to
utilize the new usb_serial_{de}register_drivers() routines:

	ti_usb_3410_5052, usb_debug, visor, vivopay-serial,
	whiteheat, and zio.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 12:39:21 -08:00
Alan Stern
d860322f34 usb-serial: use new registration API in [q-s]* drivers
This patch (as1528) modifies the following usb-serial drivers to
utilize the new usb_serial_{de}register_drivers() routines:

	qcaux, qcserial, safe_serial, siemens_mpi, sierra,
	spcp8x5, ssu100, and symbolserial.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 12:39:20 -08:00
Alan Stern
f667ddad41 usb-serial: use new registration API in [n-p]* drivers
This patch (as1527) modifies the following usb-serial drivers to
utilize the new usb_serial_{de}register_drivers() routines:

	navman, omninet, opticon, option, oti6858, and pl2303.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 12:39:20 -08:00
Alan Stern
4d2a7aff10 usb-serial: use new registration API in [k-m]* drivers
This patch (as1526) modifies the following usb-serial drivers to
utilize the new usb_serial_{de}register_drivers() routines:

	keyspan, kl5kusb105, kobil_sct, mct_u232, mos7720,
	mos7840, and moto_modem.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 12:39:19 -08:00
Alan Stern
7dbe246098 usb-serial: use new registration API in [i-j]* drivers
This patch (as1525) modifies the following usb-serial drivers to
utilize the new usb_serial_{de}register_drivers() routines:

	io_edgeport, io_ti, ipaq, ipw, ir-usb, and iuu_phoenix.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 12:39:18 -08:00
Alan Stern
97b6b6d233 usb-serial: use new registration API in [d-h]* drivers
This patch (as1524) modifies the following usb-serial drivers to
utilize the new usb_serial_{de}register_drivers() routines:

	digi_acceleport, empeg, ftdi_sio, funsoft, garmin_gps,
	and hp4x.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 12:39:18 -08:00
Alan Stern
08a4f6bc2e usb-serial: use new registration API in [a-c]* drivers
This patch (as1523) modifies the following usb-serial drivers to
utilize the new usb_serial_{de}register_drivers() routines:

	aircable, ark3116, belkin_sa, ch341, cp210x, cyberjack,
	and cypress_m8.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 12:39:17 -08:00
Alan Stern
765e0ba626 usb-serial: new API for driver registration
This patch (as1522) adds two new routines to the usb-serial core, for
registering and unregistering serial drivers.  Instead of registering
the usb_driver and usb_serial_drivers separately, with error checking
for each one, the drivers can all be registered and unregistered by a
single function call.  This reduces duplicated code.

More importantly, the new core routines change the order in which the
drivers are registered.  Currently the usb-serial drivers are all
registered first and the usb_driver is done last, which leaves a
window for problems.  A udev script may quickly add a new dynamic-ID
for a usb-serial driver, causing the corresponding usb_driver to be
probed.  If the usb_driver hasn't been registered yet then an oops
will occur.

The new routine prevents such problems by registering the usb_driver
first.  To insure that it gets probed properly for already-attached
serial devices, we call driver_attach() after all the usb-serial
drivers have been registered.

Along with adding the new routines, the patch modifies the "generic"
serial driver to use them.  Further patches will similarly modify all
the other in-tree USB serial drivers.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 12:39:17 -08:00
Supriya Karanth
39287076e4 usb: musb: Reselect index reg in interrupt context
musb INDEX register is getting modified/corrupted during temporary
un-locking in a SMP system. Set this register with proper value
after re-acquiring the lock

Scenario:
---------
CPU1 is handling a data transfer completion interrupt received for
the CLASS1 EP
CPU2 is handling a CLASS2 thread which is queuing data to musb for
transfer

Below is the error sequence:

         CPU1                   |             CPU2
--------------------------------------------------------------------
Data transfer completion inter- |
rupt recieved.                  |
                                |
musb INDEX reg set to CLASS1 EP |
                                |
musb LOCK is acquired.          |
                                |
                                | CLASS2 thread queues data.
                                |
                                | CLASS2 thread tries to acquire musb
                                | LOCK but lock is already taken by
                                | CLASS1, so CLASS2 thread is
                                | spinning.
                                |
From Interrupt Context musb     |
giveback function is called     |
                                |
The giveback function releases  | CLASS2 thread now acquires LOCK
LOCK                            |
                                |
ClASS1 Request's completion cal-| ClASS2 schedules the data transfer and
lback is called                 | sets the MUSB INDEX to Class2 EP number
                                |
Interrupt handler for CLASS1 EP |
tries to acquire LOCK and is    |
spinning                        |
                                |
Interrupt for Class1 EP acquires| Class2 completes the scheduling etc and
the MUSB LOCK                   | releases the musb LOCK
                                |
Interrupt for Class1 EP schedul-|
es the next data transfer       |
but musb INDEX register is still|
set to CLASS2 EP                |

Since the MUSB INDEX register is set to a different endpoint, we
read and modify the wrong registers. Hence data transfer will not
happen properly. This results in unpredictable behavior

So, the MUSB INDEX register is set to proper value again when
interrupt re-acquires the lock

Cc: stable@vger.kernel.org
Signed-off-by: Supriya Karanth <supriya.karanth@stericsson.com>
Signed-off-by: Praveena Nadahally <praveen.nadahally@stericsson.com>
Reviewed-by: srinidhi kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-24 12:23:02 +02:00
Peter Chen
c5cc5ed866 usb: fsl_udc_core: Fix scheduling while atomic dump message
When loading g_ether gadget, there is below message:

Backtrace:
[<80012248>] (dump_backtrace+0x0/0x10c) from [<803cb42c>] (dump_stack+0x18/0x1c)
r7:00000000 r6:80512000 r5:8052bef8 r4:80513f30
[<803cb414>] (dump_stack+0x0/0x1c) from [<8000feb4>] (show_regs+0x44/0x50)
[<8000fe70>] (show_regs+0x0/0x50) from [<8004c840>] (__schedule_bug+0x68/0x84)
r5:8052bef8 r4:80513f30
[<8004c7d8>] (__schedule_bug+0x0/0x84) from [<803cd0e4>] (__schedule+0x4b0/0x528)
r5:8052bef8 r4:809aad00
[<803ccc34>] (__schedule+0x0/0x528) from [<803cd214>] (_cond_resched+0x44/0x58)
[<803cd1d0>] (_cond_resched+0x0/0x58) from [<800a9488>] (dma_pool_alloc+0x184/0x250)
 r5:9f9b4000 r4:9fb4fb80
 [<800a9304>] (dma_pool_alloc+0x0/0x250) from [<802a8ad8>] (fsl_req_to_dtd+0xac/0x180)
[<802a8a2c>] (fsl_req_to_dtd+0x0/0x180) from [<802a8ce4>] (fsl_ep_queue+0x138/0x274)
[<802a8bac>] (fsl_ep_queue+0x0/0x274) from [<7f004328>] (composite_setup+0x2d4/0xfac [g_ether])
[<7f004054>] (composite_setup+0x0/0xfac [g_ether]) from [<802a9bb4>] (fsl_udc_irq+0x8dc/0xd38)
[<802a92d8>] (fsl_udc_irq+0x0/0xd38) from [<800704f8>] (handle_irq_event_percpu+0x54/0x188)
[<800704a4>] (handle_irq_event_percpu+0x0/0x188) from [<80070674>] (handle_irq_event+0x48/0x68)
[<8007062c>] (handle_irq_event+0x0/0x68) from [<800738ec>] (handle_level_irq+0xb4/0x138)
 r5:80514f94 r4:80514f40
 [<80073838>] (handle_level_irq+0x0/0x138) from [<8006ffa4>] (generic_handle_irq+0x38/0x44)
 r7:00000012 r6:80510b1c r5:80529860 r4:80512000
 [<8006ff6c>] (generic_handle_irq+0x0/0x44) from [<8000f4c4>] (handle_IRQ+0x54/0xb4)
[<8000f470>] (handle_IRQ+0x0/0xb4) from [<800085b8>] (tzic_handle_irq+0x64/0x94)
 r9:412fc085 r8:00000000 r7:80513f30 r6:00000001 r5:00000000
 r4:00000000
 [<80008554>] (tzic_handle_irq+0x0/0x94) from [<8000e680>] (__irq_svc+0x40/0x60)

The reason of above dump message is calling dma_poll_alloc with can-schedule
mem_flags at atomic context.

To fix this problem, below changes are made:
- fsl_req_to_dtd doesn't need to be protected by spin_lock_irqsave,
as struct usb_request can be access at process context. Move lock
to beginning of hardware visit (fsl_queue_td).
- Change the memory flag which using to allocate dTD descriptor buffer,
the memory flag can be from gadget layer.

It is tested at i.mx51 bbg board with g_mass_storage, g_ether, g_serial.

Cc: stable@vger.kernel.org
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-24 12:22:45 +02:00
Kuninori Morimoto
3b2a2e4717 usb: renesas_usbhs: bugfix: add .release function to gpriv->gadget.dev
This patch fixup below warning on device_unregister()

renesas_usbhs renesas_usbhs.1: host probed
renesas_usbhs renesas_usbhs.1: gadget probed
renesas_usbhs renesas_usbhs.1: irq request err
------------[ cut here ]------------
WARNING: at ${LINUX}/drivers/base/core.c:1)
Device 'gadget' does not have a release() function, it is broken and must be fi.
Modules linked in:
[<c000e25c>] (unwind_backtrace+0x0/0xe4) from [<c0016960>] (warn_slowpath_commo)
[<c0016960>] (warn_slowpath_common+0x4c/0x64) from [<c00169f8>] (warn_slowpath_)
[<c00169f8>] (warn_slowpath_fmt+0x2c/0x3c) from [<c0185b80>] (device_release+0x)
[<c0185b80>] (device_release+0x70/0x84) from [<c013e300>] (kobject_cleanup+0x58)
[<c013e300>] (kobject_cleanup+0x58/0x6c) from [<c01cba14>] (usbhs_mod_gadget_re)
[<c01cba14>] (usbhs_mod_gadget_remove+0x3c/0x6c) from [<c01c8384>] (usbhs_mod_p)
[<c01c8384>] (usbhs_mod_probe+0x68/0x80) from [<c01c7f84>] (usbhs_probe+0x1cc/0)
...

Cc: stable@vger.kernel.org
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-24 12:22:39 +02:00
Ido Shayevitz
f9c56cdd39 usb: gadget: Clear usb_endpoint_descriptor inside the struct usb_ep on disable
This fix a bug in f_serial, which expect the ep->desc to be NULL after
disabling an endpoint.

Cc: stable@vger.kernel.org
Signed-off-by: Ido Shayevitz <idos@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-24 12:22:38 +02:00
Greg Kroah-Hartman
c69263c66e Merge branch 'usb-3.3-rc4' into usb-next
This is to pull in the xhci changes and the other fixes and device id
updates that were done in Linus's tree.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-23 08:21:03 -08:00
Danny Kukawka
a003c187ca usb: at91_udc: linux/prefetch.h included twice
drivers/usb/gadget/at91_udc.c included 'linux/prefetch.h' twice,
remove the duplicate.

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-23 12:27:18 +02:00
Linus Torvalds
45196cee28 USB bugfixes for 3.3-rc4
A number of new device ids, and a cleanup/fix for some of the option
 device ids that shouldn't have been added in the first place.
 
 There's also a few USB 3 fixes for problems that people have reported,
 and a usb-storage bugfix to round it out.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

USB bugfixes for 3.3-rc4

A number of new device ids, and a cleanup/fix for some of the option
device ids that shouldn't have been added in the first place.

There's also a few USB 3 fixes for problems that people have reported,
and a usb-storage bugfix to round it out.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

* tag 'usb-3.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: Added Kamstrup VID/PIDs to cp210x serial driver.
  USB: Serial: ti_usb_3410_5052: Add Abbot Diabetes Care cable id
  usb-storage: fix freezing of the scanning thread
  xhci: Fix encoding for HS bulk/control NAK rate.
  USB: Set hub depth after USB3 hub reset
  USB: Fix handoff when BIOS disables host PCI device.
  USB: option: cleanup zte 3g-dongle's pid in option.c
  USB: Don't fail USB3 probe on missing legacy PCI IRQ.
  xhci: Fix oops caused by more USB2 ports than USB3 ports.
  USB: Remove duplicate USB 3.0 hub feature #defines.
2012-02-22 13:00:53 -08:00
Linus Torvalds
e2d4370b78 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Intel, radeon, exynos fixes.

Intel: fixes a few Ivybridge hangs, along with fixing RC6 on SNB (still
not on, but at least allows for distros to patch it on easily).

radeon: oops reading some files in debugfs that weren't meant to appear,
a fix that touches a lot of files, so looks worse than it is, it fixes
an oops if a GPU reset fails and userspace keeps submitting more data,
along with a minor BIOS fix for newer boards.

exynos: a group of fixes for exynos, they've sent me a few more but
these were all I got through, and its no hw vanilla kernel users see a
lot off yet.

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon/kms/atom: dpms bios scratch reg updates
  drm/radeon/kms: properly set accel working flag and bailout when false
  drm/radeon: Only create additional ring debugfs files on Cayman or newer.
  drm/exynos: added postclose to release resource.
  drm/exynos: removed exynos_drm_fbdev_recreate function.
  drm/exynos: fixed page flip issue.
  drm/exynos: added possible_clones setup function.
  drm/exynos: removed pageflip_event_list init code when closed.
  drm/exynos: changed priority of mixer layers.
  drm/exynos: Fix typo in exynos_mixer.c
  drm/i915: do not enable RC6p on Sandy Bridge
  drm/i915: gen7: Disable the RHWO optimization as it can cause GPU hangs.
  drm/i915: gen7: work around a system hang on IVB
  drm/i915: gen7: Implement an L3 caching workaround.
  drm/i915: gen7: implement rczunit workaround
2012-02-22 11:58:30 -08:00
Linus Torvalds
71c01b9d5b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
It contains 3 important fixes for ColdFire based machines:
 - fix processes getting stuck when running from strace
 - fix kernel vmalloced pages not being visible in all kernel contexts
 - fix shared user pages sometimes being visible in another process
   context

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: Do not set global share for non-kernel shared pages
  m68k: Add shared bit to Coldfire kernel page entries
  m68knommu: fix syscall tracing stuck process
2012-02-22 08:45:08 -08:00
Linus Torvalds
437cf4c7b7 Bugfixes for the NFS client.
Fix a nasty Oops in the NFSv4 getacl code, another source of infinite loops
 in the NFSv4 state recovery code, and a regression in NFSv4.1 session
 initialisation.
 Also deal with an NFSv4.1 memory leak.
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Merge tag 'nfs-for-3.3-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Bugfixes for the NFS client.

Fix a nasty Oops in the NFSv4 getacl code, another source of infinite
loops in the NFSv4 state recovery code, and a regression in NFSv4.1
session initialisation.

Also deal with an NFSv4.1 memory leak.

* tag 'nfs-for-3.3-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFSv4: fix server_scope memory leak
  NFSv4.1: Fix a NFSv4.1 session initialisation regression
  NFSv4: Ensure we throw out bad delegation stateids on NFS4ERR_BAD_STATEID
  NFSv4: Fix an Oops in the NFSv4 getacl code
2012-02-22 08:43:35 -08:00
Alex Deucher
3ac0eb6d62 drm/radeon/kms/atom: dpms bios scratch reg updates
dpms bits not used on DCE4+

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-22 10:30:06 +00:00
Jerome Glisse
6b7746e876 drm/radeon/kms: properly set accel working flag and bailout when false
If accel is not working many subsystem such as the ib pool might not be
initialized properly that can lead to segfault inside kernel when cs
ioctl is call with non working acceleration. To avoid this make sure
the accel working flag is false when an error in GPU startup happen and
return EBUSY from cs ioctl if accel is not working.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-22 10:30:02 +00:00
Michel Dänzer
f0d14daa69 drm/radeon: Only create additional ring debugfs files on Cayman or newer.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=46274

Tested with a Cayman card in a Llano system: The additional files are created
and working for the Cayman card but not created for the CPU's built-in GPU.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-22 10:28:52 +00:00