This patch changes a dev_warn() call in usbcore to dev_dbg(). It's
not necessary to warn about drivers missing a reset-resume callback,
since the reset-resume method is optional.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes an endian-related error in ohci-hcd (detected by
sparse) and clarifies a comment explaining a peculiar locking
arrangement that sparse warns about.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes several sparse errors in ehci-hcd introduced by
commit 3d091a6f70 (USB: EHCI: AMD periodic frame list table quirk).
Although the problem fixed by that commit affects only little-endian
systems, the source code has to use types appropriate for big-endian
too.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes a type mismatch in ehci-hcd caused by commit
b35c5009bb (USB: EHCI: create per-TT bandwidth tables). The c_maskp
parameter in check_intr_schedule() was changed to point to unsigned
int rather than __hc32, but the prototype declaration wasn't adjusted
accordingly.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Hi Greg,
Here's my pull request for usb-next and 3.13. My xHCI tree is closed
after this point, since I won't be able to run my full tests while I'm in
Scotland. After Kernel Summit, I'll be on vacation with access to email
from Oct 26th to Nov 6th.
Here's what's in this request:
- Patches to fix USB 2.0 Link PM issues that cause USB 3.0 devices to not
enumerate or misbehave when plugged into a USB 2.0 port. Those are
marked for stable.
- A msec vs jiffies bug fix by xiao jin, which results in fairly harmless
behavior, and thus isn't marked for stable.
- Xenia's patches to refactor the xHCI command handling code, which makes
it much more readable and consistent.
- Misc cleanup patches, one by Sachin Kamat and three from Dan Williams.
Here's what's not in this request:
- Dan's two patches to allow the xHCI host to use the "Windows" or "new"
enumeration scheme. I did not have time to test those, and I want to
run them with as many USB devices as I can get a hold of. That will
have to wait for 3.14.
- Xenia's patches to remove xhci_readl in favor of readl. I'll queue
those for 3.14 after I test them.
- The xHCI streams update, UAS fixes, and usbfs streams support. I'm not
comfortable with changes and fixes to that patchset coming in this late.
I would rather wait for 3.14 and be really sure the streams support is
stable before we add new userspace API and remove CONFIG_BROKEN from the
uas driver.
- Julius' patch to clear the port reset bit on hub resume that came in
a couple days ago. It looks harmless, but I would rather take the time
to test and queue it for usb-linus and the stable trees once 3.13-rc1
is out.
Sarah Sharp
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Merge tag 'for-usb-next-2013-10-17' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-next
Sarah writes:
xhci: Final patches for 3.13
Hi Greg,
Here's my pull request for usb-next and 3.13. My xHCI tree is closed
after this point, since I won't be able to run my full tests while I'm in
Scotland. After Kernel Summit, I'll be on vacation with access to email
from Oct 26th to Nov 6th.
Here's what's in this request:
- Patches to fix USB 2.0 Link PM issues that cause USB 3.0 devices to not
enumerate or misbehave when plugged into a USB 2.0 port. Those are
marked for stable.
- A msec vs jiffies bug fix by xiao jin, which results in fairly harmless
behavior, and thus isn't marked for stable.
- Xenia's patches to refactor the xHCI command handling code, which makes
it much more readable and consistent.
- Misc cleanup patches, one by Sachin Kamat and three from Dan Williams.
Here's what's not in this request:
- Dan's two patches to allow the xHCI host to use the "Windows" or "new"
enumeration scheme. I did not have time to test those, and I want to
run them with as many USB devices as I can get a hold of. That will
have to wait for 3.14.
- Xenia's patches to remove xhci_readl in favor of readl. I'll queue
those for 3.14 after I test them.
- The xHCI streams update, UAS fixes, and usbfs streams support. I'm not
comfortable with changes and fixes to that patchset coming in this late.
I would rather wait for 3.14 and be really sure the streams support is
stable before we add new userspace API and remove CONFIG_BROKEN from the
uas driver.
- Julius' patch to clear the port reset bit on hub resume that came in
a couple days ago. It looks harmless, but I would rather take the time
to test and queue it for usb-linus and the stable trees once 3.13-rc1
is out.
Sarah Sharp
Do not overwrite the multi-byte fields of usb_wa_descriptor with their
cpu format values after reading the descriptor. Leave the values as
__le16 and swap on use. This is more consistent with other uses of USB
descriptors.
Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch serializes access to the HWA data transfer out (DTO)
endpoint. This prevents a situation where two transfer requests being
sent concurrently to separate downstream endpoints could interleave
their transfer request and transfer data packets causing data
corruption. The transfer processing code will now attempt to acquire
the DTO resource before sending a transfer to the HWA. If it cannot
acquire the resource, the RPIPE that the transfer is assigned to will
be placed on a waiting list. When the DTO resource is released, the
actor releasing the resource will serivce the RPIPEs that are waiting.
Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- intel_pstate fix for misbehavior after system resume if sysfs
attributes are set in a specific way before the corresponding
suspend from Dirk Brandewie.
- A recent intel_pstate fix has no effect if unsigned long is 32-bit,
so fix it up to cover that case as well.
- The s3c64xx cpufreq driver was not updated when the index field of
struct cpufreq_frequency_table was replaced with driver_data, so
update it now. From Charles Keepax.
- The Kconfig help text for ACPI_BUTTON still refers to /proc/acpi/event
that has been dropped recently, so modify it to remove that reference.
From Krzysztof Mazur.
- A Lan Tianyu's change adds a missing mutex unlock to an error code
path in acpi_resume_power_resources().
- Some code related to ACPI power resources, whose very purpose is
questionable to put it lightly, turns out to cause problems to
happen during testing on real systems, so remove it completely
(we may revisit that in the future if there's a compelling enough
reason). From Rafael J Wysocki and Aaron Lu.
/
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Merge tag 'pm+acpi-3.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
- intel_pstate fix for misbehavior after system resume if sysfs
attributes are set in a specific way before the corresponding suspend
from Dirk Brandewie.
- A recent intel_pstate fix has no effect if unsigned long is 32-bit,
so fix it up to cover that case as well.
- The s3c64xx cpufreq driver was not updated when the index field of
struct cpufreq_frequency_table was replaced with driver_data, so
update it now. From Charles Keepax.
- The Kconfig help text for ACPI_BUTTON still refers to
/proc/acpi/event that has been dropped recently, so modify it to
remove that reference. From Krzysztof Mazur.
- A Lan Tianyu's change adds a missing mutex unlock to an error code
path in acpi_resume_power_resources().
- Some code related to ACPI power resources, whose very purpose is
questionable to put it lightly, turns out to cause problems to happen
during testing on real systems, so remove it completely (we may
revisit that in the future if there's a compelling enough reason).
From Rafael J Wysocki and Aaron Lu.
* tag 'pm+acpi-3.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / PM: Drop two functions that are not used any more
ATA / ACPI: remove power dependent device handling
cpufreq: s3c64xx: Rename index to driver_data
ACPI / power: Drop automaitc resume of power resource dependent devices
intel_pstate: Fix type mismatch warning
cpufreq / intel_pstate: Fix max_perf_pct on resume
ACPI: remove /proc/acpi/event from ACPI_BUTTON help
ACPI / power: Release resource_lock after acpi_power_get_state() return error
* acpi-fixes:
ACPI / PM: Drop two functions that are not used any more
ATA / ACPI: remove power dependent device handling
ACPI / power: Drop automaitc resume of power resource dependent devices
ACPI: remove /proc/acpi/event from ACPI_BUTTON help
ACPI / power: Release resource_lock after acpi_power_get_state() return error
Here is one fix for the hotplug memory path that resolves a regression
when removing memory that showed up in 3.12-rc1.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fix from Greg KH:
"Here is one fix for the hotplug memory path that resolves a regression
when removing memory that showed up in 3.12-rc1"
* tag 'driver-core-3.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
driver core: Release device_hotplug_lock when store_mem_state returns EINVAL
Here are some USB fixes and new device ids for 3.12-rc6
The largest change here is a bunch of new device ids for the option USB
serial driver for new Huawei devices. Other than that, just some small
bug fixes for issues that people have reported (run-time and
build-time), nothing major.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some USB fixes and new device ids for 3.12-rc6
The largest change here is a bunch of new device ids for the option
USB serial driver for new Huawei devices. Other than that, just some
small bug fixes for issues that people have reported (run-time and
build-time), nothing major"
* tag 'usb-3.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: usb_phy_gen: refine conditional declaration of usb_nop_xceiv_register
usb: misc: usb3503: Fix compile error due to incorrect regmap depedency
usb/chipidea: fix oops on memory allocation failure
usb-storage: add quirk for mandatory READ_CAPACITY_16
usb: serial: option: blacklist Olivetti Olicard200
USB: quirks: add touchscreen that is dazzeled by remote wakeup
Revert "usb: musb: gadget: fix otg active status flag"
USB: quirks.c: add one device that cannot deal with suspension
USB: serial: option: add support for Inovia SEW858 device
USB: serial: ti_usb_3410_5052: add Abbott strip port ID to combined table as well.
USB: support new huawei devices in option.c
usb: musb: start musb on the udc side, too
xhci: Fix spurious wakeups after S5 on Haswell
xhci: fix write to USB3_PSSEN and XUSB2PRM pci config registers
xhci: quirk for extra long delay for S4
xhci: Don't enable/disable RWE on bus suspend/resume.
Here are two serial driver fixes for your tree. One is a revert of a
patch that causes a build error, the other is a fix to provide the
correct brace placement which resolves a bug where the driver was not
working properly.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull serial driver fixes from Greg KH:
"Here are two serial driver fixes for your tree. One is a revert of a
patch that causes a build error, the other is a fix to provide the
correct brace placement which resolves a bug where the driver was not
working properly"
* tag 'tty-3.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: vt8500: add missing braces
Revert "serial: i.MX: evaluate linux,stdout-path property"
Here are some small iio and w1 driver fixes for 3.12-rc6.
There is also a hyper-v fix in here, which turned out to be incorrect,
so it was reverted. That will probably have to wait unto 3.13-rc1 to
get accepted as it's still being discussed.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small iio and w1 driver fixes for 3.12-rc6.
There is also a hyper-v fix in here, which turned out to be incorrect,
so it was reverted. That will probably have to wait unto 3.13-rc1 to
get accepted as it's still being discussed"
* tag 'char-misc-3.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
Revert "Drivers: hv: vmbus: Fix a bug in channel rescind code"
Drivers: hv: vmbus: Fix a bug in channel rescind code
iio:buffer: Free active scan mask in iio_disable_all_buffers()
iio: frequency: adf4350: add missing clk_disable_unprepare() on error in adf4350_probe()
w1 - call request_module with w1 master mutex unlocked
w1 - fix fops in w1_bus_notify
Two little ones this time:
1) A missing clk_unprepare in adf4350.
2) A missing free of the active_scan_mask when iio_disable_all_buffers is
called during an unexpected device removal. This leak was introduced by
the fix
a87c82e454 iio: Stop sampling when the device is removed
and hence is a regression fix.
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Merge tag 'iio-fixes-for-3.12c' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-linus
Jonathan writes:
Third set of IIO fixes for the 3.12 cycle.
Two little ones this time:
1) A missing clk_unprepare in adf4350.
2) A missing free of the active_scan_mask when iio_disable_all_buffers is
called during an unexpected device removal. This leak was introduced by
the fix
a87c82e454 iio: Stop sampling when the device is removed
and hence is a regression fix.
This reverts commit 90d33f3ec5 as it's not
the correct fix for this issue, and it causes a build warning to be
added to the kernel tree.
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Two functions defined in device_pm.c, acpi_dev_pm_add_dependent()
and acpi_dev_pm_remove_dependent(), have no callers and may be
dropped, so drop them.
Moreover, they are the only functions adding entries to and removing
entries from the power_dependent list in struct acpi_device, so drop
that list too.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Previously, we wanted SCSI devices corrsponding to ATA devices to
be runtime resumed when the power resource for those ATA device was
turned on by some other device, so we added the SCSI device to the
dependent device list of the ATA device's ACPI node. However, this
code has no effect after commit 41863fc (ACPI / power: Drop automaitc
resume of power resource dependent devices) and the mechanism it was
supposed to implement is regarded as a bad idea now, so drop it.
[rjw: Changelog]
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
When inserting a wrong value to /sys/devices/system/memory/memoryX/state file,
following messages are shown. And device_hotplug_lock is never released.
================================================
[ BUG: lock held when returning to user space! ]
3.12.0-rc4-debug+ #3 Tainted: G W
------------------------------------------------
bash/6442 is leaving the kernel with locks still held!
1 lock held by bash/6442:
#0: (device_hotplug_lock){+.+.+.}, at: [<ffffffff8146cbb5>] lock_device_hotplug_sysfs+0x15/0x50
This issue was introdued by commit fa2be40 (drivers: base: use standard
device online/offline for state change).
This patch releases device_hotplug_lcok when store_mem_state returns EINVAL.
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Reviewed-by: Toshi Kani <toshi.kani@hp.com>
CC: Seth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'dm-3.12-fix-cve' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device-mapper fix from Alasdair Kergon:
"A patch to avoid data corruption in a device-mapper snapshot.
This is primarily a data corruption bug that all users of
device-mapper snapshots will want to fix. The CVE is due to a data
leak under specific circumstances if, for example, the snapshot is
presented to a virtual machine: a block written as data inside the VM
can get interpreted incorrectly on the host outside the VM as
metadata, causing the host to provide the VM with access to blocks it
would not otherwise see. This is likely to affect few, if any,
people"
* tag 'dm-3.12-fix-cve' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm snapshot: fix data corruption
- A fix to the Lynxpoint IRQ handler
- Two late fixes to fallout from the gpiod refactoring
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Merge tag 'gpio-v3.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull gpio fixes from Linus Walleij:
"Three GPIO fixes for the v3.12 series:
- A fix to the Lynxpoint IRQ handler
- Two late fixes to fallout from the gpiod refactoring"
* tag 'gpio-v3.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpiolib: let gpiod_request() return -EPROBE_DEFER
gpiolib: safer implementation of desc_to_gpio()
gpio/lynxpoint: check if the interrupt is enabled in IRQ handler
Only used for debug output, so we don't need to save it.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Perform an unconditional toggle of the cycle bit with 'xor'.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Remove a few extra lines and make it clear that all implementations
disable the port by sharing the same line of code.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
The index field of cpufreq_frequency_table has been renamed to
driver_data by commit 5070158 (cpufreq: rename index as driver_data
in cpufreq_frequency_table).
This patch updates the s3c64xx driver to match.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: 3.11+ <stable@vger.kernel.org> # 3.11+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The mechanism causing devices depending on a given power resource
(that is, devices that can be in D0 only if that power resource is
on) to be resumed automatically when the power resource is turned
on (and their "inferred" power state becomes D0 as a result) is
inherently racy and in fact unnecessary.
It is racy, because if the power resource is turned on and then
immediately off, the device resume triggered by the first transition
to "on" may still happen, causing the power resource to be turned
on again. That again will trigger the "resume of dependent devices"
mechanism, but if the devices in question are not in use, they will
be suspended in the meantime causing the power resource to be turned
off. However, the "resume of dependent devices" will next resume
them again and so on. In some cases (USB port PM in particular) that
leads to an endless busy loop of flipping the resource on and off
continuously.
It is needless, because whoever turns a power resource on will most
likely turn it off at some point and the devices that go into "D0"
as a result of turning it on will then go back into D3cold
(generally, the state they were in before).
Moreover, turning on all power resources a device needs to go into
D0 is not sufficient for a full transition into D0 in general.
Namely, _PS0 may need to be executed in addition to that in some
cases. This means that the whole rationale of the "resume of
dependent devices" mechanism was incorrect to begin with and it's
best to remove it entirely.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The expression in line 398 of intel_pstate.c causes the following
warning to be emitted:
drivers/cpufreq/intel_pstate.c:398:3: warning: left shift count >= width of type
which happens because unsigned long is 32-bit on some architectures.
Fix that by using a helper u64 variable and simplify the code
slightly.
Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Rescind of subchannels were not being correctly handled. Fix the bug.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: <stable@vger.kernel.org> [3.11+]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The USB3503 driver had an incorrect depedency on REGMAP, instead of
REGMAP_I2C. This caused the build to fail since the necessary regmap
i2c pieces were not available.
Signed-off-by: Matthew Dawson <matthew@mjdsystems.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When CMA fails to initialize in v3.12-rc4, the chipidea driver oopses
the kernel while trying to remove and put the HCD which doesn't exist:
WARNING: CPU: 0 PID: 6 at /home/rmk/git/linux-rmk/arch/arm/mm/dma-mapping.c:511
__dma_alloc+0x200/0x240()
coherent pool not initialised!
Modules linked in:
CPU: 0 PID: 6 Comm: kworker/u2:0 Tainted: G W 3.12.0-rc4+ #56
Workqueue: deferwq deferred_probe_work_func
Backtrace:
[<c001218c>] (dump_backtrace+0x0/0x10c) from [<c0012328>] (show_stack+0x18/0x1c)
r6:c05fd9cc r5:000001ff r4:00000000 r3:df86ad00
[<c0012310>] (show_stack+0x0/0x1c) from [<c05f3a4c>] (dump_stack+0x70/0x8c)
[<c05f39dc>] (dump_stack+0x0/0x8c) from [<c00230a8>] (warn_slowpath_common+0x6c/0x8c)
r4:df883a60 r3:df86ad00
[<c002303c>] (warn_slowpath_common+0x0/0x8c) from [<c002316c>] (warn_slowpath_fmt+0x38/0x40)
r8:ffffffff r7:00001000 r6:c083b808 r5:00000000 r4:df2efe80
[<c0023134>] (warn_slowpath_fmt+0x0/0x40) from [<c00196bc>] (__dma_alloc+0x200/0x240)
r3:00000000 r2:c05fda00
[<c00194bc>] (__dma_alloc+0x0/0x240) from [<c001982c>] (arm_dma_alloc+0x88/0xa0)
[<c00197a4>] (arm_dma_alloc+0x0/0xa0) from [<c03e2904>] (ehci_setup+0x1f4/0x438)
[<c03e2710>] (ehci_setup+0x0/0x438) from [<c03cbd60>] (usb_add_hcd+0x18c/0x664)
[<c03cbbd4>] (usb_add_hcd+0x0/0x664) from [<c03e89f4>] (host_start+0xf0/0x180)
[<c03e8904>] (host_start+0x0/0x180) from [<c03e7c34>] (ci_hdrc_probe+0x360/0x670
)
r6:df2ef410 r5:00000000 r4:df2c3010 r3:c03e8904
[<c03e78d4>] (ci_hdrc_probe+0x0/0x670) from [<c0311044>] (platform_drv_probe+0x20/0x24)
[<c0311024>] (platform_drv_probe+0x0/0x24) from [<c030fcac>] (driver_probe_device+0x9c/0x234)
...
---[ end trace c88ccaf3969e8422 ]---
Unable to handle kernel NULL pointer dereference at virtual address 00000028
pgd = c0004000
[00000028] *pgd=00000000
Internal error: Oops: 17 [#1] SMP ARM
Modules linked in:
CPU: 0 PID: 6 Comm: kworker/u2:0 Tainted: G W 3.12.0-rc4+ #56
Workqueue: deferwq deferred_probe_work_func
task: df86ad00 ti: df882000 task.ti: df882000
PC is at usb_remove_hcd+0x10/0x150
LR is at host_stop+0x1c/0x3c
pc : [<c03cacec>] lr : [<c03e88e4>] psr: 60000013
sp : df883b50 ip : df883b78 fp : df883b74
r10: c11f4c54 r9 : c0836450 r8 : df30c400
r7 : fffffff4 r6 : df2ef410 r5 : 00000000 r4 : df2c3010
r3 : 00000000 r2 : 00000000 r1 : df86b0a0 r0 : 00000000
Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
Control: 10c53c7d Table: 2f29404a DAC: 00000015
Process kworker/u2:0 (pid: 6, stack limit = 0xdf882240)
Stack: (0xdf883b50 to 0xdf884000)
...
Backtrace:
[<c03cacdc>] (usb_remove_hcd+0x0/0x150) from [<c03e88e4>] (host_stop+0x1c/0x3c)
r6:df2ef410 r5:00000000 r4:df2c3010
[<c03e88c8>] (host_stop+0x0/0x3c) from [<c03e8aa0>] (ci_hdrc_host_destroy+0x1c/0x20)
r5:00000000 r4:df2c3010
[<c03e8a84>] (ci_hdrc_host_destroy+0x0/0x20) from [<c03e7c80>] (ci_hdrc_probe+0x3ac/0x670)
[<c03e78d4>] (ci_hdrc_probe+0x0/0x670) from [<c0311044>] (platform_drv_probe+0x20/0x24)
[<c0311024>] (platform_drv_probe+0x0/0x24) from [<c030fcac>] (driver_probe_device+0x9c/0x234)
[<c030fc10>] (driver_probe_device+0x0/0x234) from [<c030ff28>] (__device_attach+0x44/0x48)
...
---[ end trace c88ccaf3969e8423 ]---
Fix this so at least we can continue booting and get to a shell prompt.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the generic PHY API to control the DP PHY.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Exynos Display Port can be used only for Exynos SoCs. In addition,
non-DT for EXYNOS SoCs is not supported from v3.11; thus, there is
no need to support non-DT for Exynos Display Port.
The 'include/video/exynos_dp.h' file has been used for non-DT
support and the content of file include/video/exynos_dp.h is moved
to drivers/video/exynos/exynos_dp_core.h. Thus, the 'exynos_dp.h'
file is removed. Also, 'struct exynos_dp_platdata' is removed,
because it is not used any more.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add a PHY provider driver for the Samsung Exynos SoC Display Port PHY.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-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>
Use the generic PHY API instead of the platform callback
for the MIPI DSIM DPHY enable/reset control.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Donghwa Lee <dh09.lee@samsung.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the generic PHY API instead of the platform callback
to control the MIPI CSIS DPHY.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds the Port Reset Change flag to the set of bits that are
preemptively cleared on init/resume of a hub. In theory this bit should
never be set unexpectedly... in practice it can still happen if BIOS,
SMM or ACPI code plays around with USB devices without cleaning up
correctly. This is especially dangerous for XHCI root hubs, which don't
generate any more Port Status Change Events until all change bits are
cleared, so this is a good precaution to have (similar to how it's
already done for the Warm Port Reset Change flag).
Signed-off-by: Julius Werner <jwerner@chromium.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Some USB drive enclosures do not correctly report an
overflow condition if they hold a drive with a capacity
over 2TB and are confronted with a READ_CAPACITY_10.
They answer with their capacity modulo 2TB.
The generic layer cannot cope with that. It must be told
to use READ_CAPACITY_16 from the beginning.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Interface 6 of this device speaks QMI as per tests done by us.
Credits go to Antonella for providing the hardware.
Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: Antonella Pellizzari <anto.pellizzari83@gmail.com>
Tested-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Due to missing braces on an if statement, in presence of a device_node a
port was always assigned -1, regardless of any alias entries in the
device tree. Conversely, if device_node was NULL, an unitialized port
ended up being used.
This patch adds the missing braces, fixing the issues.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch replaces the 'event' argument of xhci_handle_cmd_set_deq() and
xhci_handle_cmd_reset_ep(), which is used to retrieve the command completion
status code, with the cmd_comp_code directly, since it is available.
Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Since the Slot ID field in the command completion event matches the Slot ID
field in the associated command TRB for the Stop Endpoint, Set Dequeue Pointer
and Reset Endpoint commands, this patch adds in the handlers of their
completion events a 'slot_id' argument and removes the slot id calculation
in each of them.
Also, a WARN_ON() was added in case the slot ids reported by command TRB and
event TRB differ (although according to xhci spec rev1.0 that should not happen)
Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This patch replaces 'xhci->cmd_ring->dequeue' with 'trb', the address of
the command TRB, since it is available to reduce line length.
Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This patch adds a new variable 'cmd_type' to hold the command type so that
switch cases can be simplified by removing TRB_TYPE() macro improving
code readability.
Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This patch adds a new variable 'cmd_trb' to hold the address of the
command TRB, that is associated with the command completion event,
and to replace repetitions of xhci->cmd_ring->dequeue into the code.
Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This patch adds a new variable 'cmd_comp_code' to hold the command completion
status code aiming to reduce code duplication and to improve code readability.
Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
The function that handles xHCI command completion is much too long and
there is need to be broken up into individual functions for each command
completion to improve code readablity.
This patch refactors the code in TRB_CONFIG_EP switch case, in
handle_cmd_completion(), into a fuction named xhci_handle_cmd_config_ep().
There were added two additional variables, 'add_flags' and 'drop_flags',
to reduce line length below 80 chars and improve code readability.
Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This patch removes the variable 'ep_ring' that is assigned in
TRB_CONFIG_EP switch case but never used.
Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
