Fix caf derp
msm: cpufreq: Initialize cpufreq driver early at boot

MSM cpufreq driver registering with the CPUFreq framework during
late_initcall() may cause the device to be available a few seconds after
the clock driver is ready for changing frequency. This could be bad for
boot and/or thermal performance, since the cpu will continue to boot at
whatever frequency the bootloaders set it to.

Initialize cpufreq driver as part of device_initcalL() but only after
all the clock drivers have had a chance to initialize their devices.

Change-Id: Iaa4867108f59a368ee5b511d35ea2e8e219d39d3
Signed-off-by: Praveen Chidambaram <pchidamb@codeaurora.org>

Conflicts:
	arch/arm/mach-msm/Makefile
Revert "hrtimer: Prevent enqueue of hrtimer on dead CPU"

This reverts commit 878f1bd9ddd4b9734ad72d187b0266e640c99e08.

Based on upstream mailing list discussions, this patch is not
necessary since switch_hrtimer_base() is called with interrupts
disabled.

Change-Id: I53c64b1a4cea3a310ef53d1729a00baee6e4534a
Signed-off-by: Michael Bohan <mbohan@codeaurora.org>
Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
Revert "hrtimer: Consider preemption when migrating hrtimer cpu_bases"

This reverts commit f31b9b9f30f76847c94155f9da4da12f912b0885.

Based on upstream mailing list discussions, this patch is not
necessary since switch_hrtimer_base() is called with interrupts
disabled.

Change-Id: I0244a744516e1c289af25043ee8b866be54813e3
Signed-off-by: Michael Bohan <mbohan@codeaurora.org>
Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
mako_hotplug: change the load thresholds for a more resonable cores online/offline. Also added a 4th check that prevents the driver to offline the second core if the load is above the first_threshold and we have 2 cores online because that means we're interacting with the device and we want to maintain some kind of fluidity and also saving some cycles by not offlining and onlining all the time.

Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
USB: serial: option: Added support Olivetti Olicard 145

commit d19bf5cedfd7d53854a3bd699c98b467b139833b upstream.

This adds PID for Olivetti Olicard 145 in option.c

Signed-off-by: Filippo Turato <nnj7585@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
USB: option: add a D-Link DWM-156 variant

commit a2a2d6c7f93e160b52a4ad0164db1f43f743ae0f upstream.

Adding support for a Mediatek based device labelled as
D-Link Model: DWM-156, H/W Ver: A7

Also adding two other device IDs found in the Debian(!)
packages included on the embedded device driver CD.

This is a composite MBIM + serial ports + card reader device:

T:  Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 14 Spd=480  MxCh= 0
D:  Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=2001 ProdID=7d01 Rev= 3.00
S:  Manufacturer=D-Link,Inc
S:  Product=D-Link DWM-156
C:* #Ifs= 7 Cfg#= 1 Atr=a0 MxPwr=500mA
A:  FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim
E:  Ad=88(I) Atr=03(Int.) MxPS=  64 Ivl=125us
I:  If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=02 Prot=01 Driver=option
E:  Ad=87(I) Atr=03(Int.) MxPS=  64 Ivl=500us
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 6 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ARM: at91: Fix typo in restart code panic message

commit e7619459d47a673af3433208a42f583af920e9db upstream.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
powerpc: Add isync to copy_and_flush

commit 29ce3c5073057991217916abc25628e906911757 upstream.

In __after_prom_start we copy the kernel down to zero in two calls to
copy_and_flush.  After the first call (copy from 0 to copy_to_here:)
we jump to the newly copied code soon after.

Unfortunately there's no isync between the copy of this code and the
jump to it.  Hence it's possible that stale instructions could still be
in the icache or pipeline before we branch to it.

We've seen this on real machines and it's results in no console output
after:
  calling quiesce...
  returning from prom_init

The below adds an isync to ensure that the copy and flushing has
completed before any branching to the new instructions occurs.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
powerpc/spufs: Initialise inode->i_ino in spufs_new_inode()

commit 6747e83235caecd30b186d1282e4eba7679f81b7 upstream.

In commit 85fe402 (fs: do not assign default i_ino in new_inode), the
initialisation of i_ino was removed from new_inode() and pushed down
into the callers. However spufs_new_inode() was not updated.

This exhibits as no files appearing in /spu, because all our dirents
have a zero inode, which readdir() seems to dislike.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mwifiex: Use pci_release_region() instead of a pci_release_regions()

commit c380aafb77b7435d010698fe3ca6d3e1cd745fde upstream.

PCI regions are associated with the device using
pci_request_region() call. Hence use pci_release_region()
instead of pci_release_regions().

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mwifiex: Call pci_release_region after calling pci_disable_device

commit 5b0d9b218b74042ff72bf4bfda6eeb2e4bf98397 upstream.

"drivers should call pci_release_region() AFTER
calling pci_disable_device()"

Please refer section 3.2 Request MMIO/IOP resources
in Documentation/PCI/pci.txt

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb/misc/appledisplay: Add 24" LED Cinema display

commit e7d3b6e22c871ba36d052ca99bc8ceca4d546a60 upstream.

Add the Apple 24" LED Cinema display to the supported devices.

Signed-off-by: Ben Jencks <ben@bjencks.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
USB: add ftdi_sio USB ID for GDM Boost V1.x

commit 58f8b6c4fa5a13cb2ddb400e26e9e65766d71e38 upstream.

This patch add a missing usb device id for the GDMBoost V1.x device

The patch is against 3.9-rc5

Signed-off-by: Stefani Seibold <stefani@seibold.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
USB: ftdi_sio: correct ST Micro Connect Lite PIDs

commit 9f06d15f8db6946e41f73196a122b84a37938878 upstream.

The current ST Micro Connect Lite uses the FT4232H hi-speed quad USB
UART FTDI chip. It is also possible to drive STM reference targets
populated with an on-board JTAG debugger based on the FT2232H chip with
the same STMicroelectronics tools.

For this reason, the ST Micro Connect Lite PIDs should be
ST_STMCLT_2232_PID: 0x3746
ST_STMCLT_4232_PID: 0x3747

Signed-off-by: Adrian Thomasset <adrian.thomasset@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usbfs: Always allow ctrl requests with USB_RECIP_ENDPOINT on the ctrl ep

commit 1361bf4b9f9ef45e628a5b89e0fd9bedfdcb7104 upstream.

When usbfs receives a ctrl-request from userspace it calls check_ctrlrecip,
which for a request with USB_RECIP_ENDPOINT tries to map this to an interface
to see if this interface is claimed, except for ctrl-requests with a type of
USB_TYPE_VENDOR.

When trying to use this device: http://www.akaipro.com/eiepro
redirected to a Windows vm running on qemu on top of Linux.

The windows driver makes a ctrl-req with USB_TYPE_CLASS and
USB_RECIP_ENDPOINT with index 0, and the mapping of the endpoint (0) to
the interface fails since ep 0 is the ctrl endpoint and thus never is
part of an interface.

This patch fixes this ctrl-req failing by skipping the checkintf call for
USB_RECIP_ENDPOINT ctrl-reqs on the ctrl endpoint.

Reported-by: Dave Stikkolorum <d.r.stikkolorum@hhs.nl>
Tested-by: Dave Stikkolorum <d.r.stikkolorum@hhs.nl>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb-storage: CY7C68300A chips do not support Cypress ATACB

commit 671b4b2ba9266cbcfe7210a704e9ea487dcaa988 upstream.

Many cards based on CY7C68300A/B/C use the USB ID 04b4:6830 but only the
B and C variants (EZ-USB AT2LP) support the ATA Command Block
functionality, according to the data sheets. The A variant (EZ-USB AT2)
locks up if ATACB is attempted, until a typical 30 seconds timeout runs
out and a USB reset is performed.

https://bugs.launchpad.net/bugs/428469

It seems that one way to spot a CY7C68300A (at least where the card
manufacturer left Cypress' EEPROM default vaules, against Cypress'
recommendations) is to look at the USB string descriptor indices.

A http://media.digikey.com/pdf/Data%20Sheets/Cypress%20PDFs/CY7C68300A.pdf
B http://www.farnell.com/datasheets/43456.pdf
C http://www.cypress.com/?rID=14189

Note that a CY7C68300B/C chip appears as CY7C68300A if it is running
in Backward Compatibility Mode, and if ATACB would be supported in this
case there is anyway no way to tell which chip it really is.

For 5 years my external USB drive has been locking up for half a minute
when plugged in and ata_id is run by udev, or anytime hdparm or similar
is run on it.

Finally looking at the /correct/ datasheet I think I found the reason. I
am aware the quirk in this patch is a bit hacky, but the hardware
manufacturers haven't made it easy for us.

Signed-off-by: Tormod Volden <debian.tormod@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
s390/memory hotplug: prevent offline of active memory increments

commit 94c163663fc1dcfc067a5fb3cc1446b9469975ce upstream.

In case a machine supports memory hotplug all active memory increments
present at IPL time have been initialized with a "usecount" of 1.
This is wrong if the memory increment size is larger than the memory
section size of the memory hotplug code. If that is the case the
usecount must be initialized with the number of memory sections that
fit into one memory increment.
Otherwise it is possible to put a memory increment into standby state
even if there are still active sections.
Afterwards addressing exceptions might happen which cause the kernel
to panic.
However even worse, if a memory increment was put into standby state
and afterwards into active state again, it's contents would have been
zeroed, leading to memory corruption.

This was only an issue for machines that support standby memory and
have at least 256GB memory.

This is broken since commit fdb1bb15 "[S390] sclp/memory hotplug: fix
initial usecount of increments".

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
xen/time: Fix kasprintf splat when allocating timer%d IRQ line.

commit 7918c92ae9638eb8a6ec18e2b4a0de84557cccc8 upstream.

When we online the CPU, we get this splat:

smpboot: Booting Node 0 Processor 1 APIC 0x2
installing Xen timer for CPU 1
BUG: sleeping function called from invalid context at /home/konrad/ssd/konrad/linux/mm/slab.c:3179
in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper/1
Pid: 0, comm: swapper/1 Not tainted 3.9.0-rc6upstream-00001-g3884fad #1
Call Trace:
 [<ffffffff810c1fea>] __might_sleep+0xda/0x100
 [<ffffffff81194617>] __kmalloc_track_caller+0x1e7/0x2c0
 [<ffffffff81303758>] ? kasprintf+0x38/0x40
 [<ffffffff813036eb>] kvasprintf+0x5b/0x90
 [<ffffffff81303758>] kasprintf+0x38/0x40
 [<ffffffff81044510>] xen_setup_timer+0x30/0xb0
 [<ffffffff810445af>] xen_hvm_setup_cpu_clockevents+0x1f/0x30
 [<ffffffff81666d0a>] start_secondary+0x19c/0x1a8

The solution to that is use kasprintf in the CPU hotplug path
that 'online's the CPU. That is, do it in in xen_hvm_cpu_notify,
and remove the call to in xen_hvm_setup_cpu_clockevents.

Unfortunatly the later is not a good idea as the bootup path
does not use xen_hvm_cpu_notify so we would end up never allocating
timer%d interrupt lines when booting. As such add the check for
atomic() to continue.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial_core.c: add put_device() after device_find_child()

commit 5a65dcc04cda41f4122aacc37a5a348454645399 upstream.

The serial core uses device_find_child() but does not drop the reference to
the retrieved child after using it. This patch add the missing put_device().

What I have done to test this issue.

I used a machine with an AMBA PL011 serial driver. I tested the patch on
next-20120408 because the last branch [next-20120415] does not boot on this
board.

For test purpose, I added some pr_info() messages to print the refcount
after device_find_child() (lines: 1937,2009), and after put_device()
(lines: 1947, 2021).

Boot the machine *without* put_device(). Then:

echo reboot > /sys/power/disk
echo disk > /sys/power/state
[   87.058575] uart_suspend_port:1937 refcount 4
[   87.058582] uart_suspend_port:1947 refcount 4
[   87.098083] uart_resume_port:2009refcount 5
[   87.098088] uart_resume_port:2021 refcount 5

echo disk > /sys/power/state
[  103.055574] uart_suspend_port:1937 refcount 6
[  103.055580] uart_suspend_port:1947 refcount 6
[  103.095322] uart_resume_port:2009 refcount 7
[  103.095327] uart_resume_port:2021 refcount 7

echo disk > /sys/power/state
[  252.459580] uart_suspend_port:1937 refcount 8
[  252.459586] uart_suspend_port:1947 refcount 8
[  252.499611] uart_resume_port:2009 refcount 9
[  252.499616] uart_resume_port:2021 refcount 9

The refcount continuously increased.

Boot the machine *with* this patch. Then:

echo reboot > /sys/power/disk
echo disk > /sys/power/state
[  159.333559] uart_suspend_port:1937 refcount 4
[  159.333566] uart_suspend_port:1947 refcount 3
[  159.372751] uart_resume_port:2009 refcount 4
[  159.372755] uart_resume_port:2021 refcount 3

echo disk > /sys/power/state
[  185.713614] uart_suspend_port:1937 refcount 4
[  185.713621] uart_suspend_port:1947 refcount 3
[  185.752935] uart_resume_port:2009 refcount 4
[  185.752940] uart_resume_port:2021 refcount 3

echo disk > /sys/power/state
[  207.458584] uart_suspend_port:1937 refcount 4
[  207.458591] uart_suspend_port:1947 refcount 3
[  207.498598] uart_resume_port:2009 refcount 4
[  207.498605] uart_resume_port:2021 refcount 3

The refcount correctly handled.

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>