The SRC has auto-deasserting reset bits that control reset lines to
the GPU, VPU, IPU, and OpenVG IP modules. This patch adds a reset
controller that can be controlled by those devices using the
reset controller API.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Function imx_anatop_get_digprog() that reads register ANADIG_DIGPROG is
called to identify silicon version. Users might query silicon version
earlier than regmap subsystem is ready. For example, imx6q clock driver
query revision in mx6q_clocks_init(), where regmap is not initialized
yet.
Change imx_anatop_get_digprog() to map anatop block and read
ANADIG_DIGPROG in the native way, so that the function can work at very
early stage.
While at it, let's move imx_print_silicon_rev() back to
imx6q_timer_init() to have the message show up a little earlier.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
On i.MX6q revision 1.1 and later, set the video PLL as parent for
the LDB clock branch. On revision 1.0, the video PLL is useless
due to missing dividers, so keep the default parent (mmdc_ch1_axi).
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Query silicon revision to determine clock tree and add post
dividers for newer revisions.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Use imx_clk_mux_flags and imx_clk_divider_flags to set the appropriate
flags for the LDB display interface divider and selector clocks.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Use imx_clk_mux_flags and imx_clk_divider_flags to set the appropriate
flags for the LDB display interface divider and selector clocks.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
The default is for dividers to set CLK_SET_PARENT_RATE and for muxes to
not set that flag. In the LDB clock tree, we need the opposite, so add
functions to create divider and mux clocks with configurable flags.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
So it can be used in clk-imx6q.c for revision dependent clock tree setup.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
There are some config options not selected by imx27 and imx5 that are
necessary to use the cpufreq-cpu0 driver.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
This patch adds the missing GPU2D and GPU3D mux and gate clocks,
and the graphics arbiter gate clock.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Fix the following sparse warnings:
arch/arm/mach-imx/anatop.c:56:6: warning: symbol 'imx_anatop_pre_suspend' was not declared. Should it be static?
arch/arm/mach-imx/anatop.c:62:6: warning: symbol 'imx_anatop_post_resume' was not declared. Should it be static?
arch/arm/mach-imx/anatop.c:68:6: warning: symbol 'imx_anatop_usb_chrg_detect_disable' was not declared. Should it be static?
arch/arm/mach-imx/anatop.c:78:5: warning: symbol 'imx_anatop_get_digprog' was not declared. Should it be static?
arch/arm/mach-imx/anatop.c:86:13: warning: symbol 'imx_anatop_init' was not declared. Should it be static?
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
RBC is to control whether some ANATOP sub modules
can enter lpm mode when SOC is into STOP mode, if
RBC is enabled and PMIC_VSTBY_REQ is set, ANATOP
will have below behaviors:
1. Digital LDOs(CORE, SOC and PU) are bypassed;
2. Analog LDOs(1P1, 2P5, 3P0) are disabled;
As the 2P5 is necessary for DRAM IO pre-drive in
STOP mode, so we need to enable weak 2P5 in STOP
mode when 2P5 LDO is disabled.
For RBC settings, there are some rules as below
due to hardware design:
1. All interrupts must be masked during operating
RBC registers;
2. At least 2 CKIL(32K) cycles is needed after the
RBC setting is changed.
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Anatop module have sereval configurations for user
to reduce the power consumption in suspend, provide
suspend/resume interface for further use and enable
fet_odrive to reduce CORE LDO leakage during suspend.
As we have a common anatop file, remove all the operations
of anatop module in other files, use anatop interfaces to
do that.
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
* Clean up a couple of unneeded function declarations
* Remove imx specific cpufreq driver as generic cpufreq-cpu0 works well
as the replacement
* Remove platform ahci support
* Clean up unused ARCH/MACH Kconfig symbols
* Remove a couple of unused files
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Merge tag 'imx-cleanup-3.10' into imx/soc
The imx cleanup for 3.10:
* Clean up a couple of unneeded function declarations
* Remove imx specific cpufreq driver as generic cpufreq-cpu0 works well
as the replacement
* Remove platform ahci support
* Clean up unused ARCH/MACH Kconfig symbols
* Remove a couple of unused files
* A couple imx35 clock fixes for regressions caused by common clock
framework conversion. The admux and iomux get disabled by common
clock framework late initcall, and hence causes problems.
* Add missing twd clock lookup in device tree. This becomes required
since commit bd60345 (ARM: use device tree to get smp_twd clock)
forces all DT boot to find lookup from device tree.
* Fix imx6q ldb_di clock parents mismatch per reference manual.
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Merge tag 'imx-fixes-3.9-5' into imx/soc
The imx fixes for 3.9, take 5:
* A couple imx35 clock fixes for regressions caused by common clock
framework conversion. The admux and iomux get disabled by common
clock framework late initcall, and hence causes problems.
* Add missing twd clock lookup in device tree. This becomes required
since commit bd60345 (ARM: use device tree to get smp_twd clock)
forces all DT boot to find lookup from device tree.
* Fix imx6q ldb_di clock parents mismatch per reference manual.
"rstc" is NULL here and we should use "rcdev" instead of "rstc->rcdev".
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This adds a simple API for devices to request being reset
by separate reset controller hardware and implements the
reset signal device tree binding.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
This binding is intended to represent the hardware reset signals present
internally in most IC (SoC, FPGA, ...) designs.
It consists of a binding for a reset controller device (provider), and a
pair of properties, "resets" and "reset-names", to link a device node
(consumer) to its reset controller via phandle, similarly to the clock
and interrupt bindings.
The reset controller has all information necessary to reset the consumer
device. That could be provided via device tree, or it could be implemented
in hardware.
The aim is to enable device drivers to request a framework API to issue a
reset simply by providing their struct device pointer as the most common
case.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Rob Herring <rob.herring@calxeda.com>
The i.MX53 ahci platform support is unused in mainline. To demotivate
people using it just remove it from the tree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
According to the recent i.MX6 Quad technical reference manual, mode 0x4 (100b)
of the CCM_CS2DCR register (address 0x020C402C) bits [11-9] and [14-12] select
the PLL3 clock, and not the PLL3 PFD1 540M clock. In our code, the PLL3 root
clock is named 'pll3_usb_otg', select this instead of the 540M clock.
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
While booting from device tree, imx6q used to provide twd clock lookup
by calling clk_register_clkdev() in clock driver. However, the commit
bd60345 (ARM: use device tree to get smp_twd clock) forces DT boot to
look up the clock from device tree. It causes the failure below when
twd driver tries to get the clock, and hence kernel has to calibrate the
local timer frequency.
smp_twd: clock not found -2
...
Calibrating local timer... 396.13MHz.
Fix the regression by providing twd clock lookup from device tree, and
remove the unused twd clk_register_clkdev() call from clock driver.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
The admux clock seems to be the audmux clock as tests show. audmux does
not work without this clock enabled. Currently imx35 does not register a
clock device for audmux. This patch adds this registration. imx-audmux
driver already handles a clock device, so no changes are necessary
there.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
This patch enables iomuxc_gate clock. It is necessary to be able to
reconfigure iomux pads. Without this clock enabled, the
clk_disable_unused function will disable this clock and the iomux pads
are not configurable anymore. This happens at every boot. After a reboot
(watchdog system reset) the clock is not enabled again, so all iomux pad
reconfigurations in boot code are without effect.
The iomux pads should be always configurable, so this patch always
enables it.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Pull KVM fix from Gleb Natapov:
"Bugfix for the regression introduced by commit c300aa64ddf5"
* git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: Allow cross page reads and writes from cached translations.
Pull x86 fixes from Peter Anvin:
"Two quite small fixes: one a build problem, and the other fixes
seccomp filters on x32."
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Fix rebuild with EFI_STUB enabled
x86: remove the x32 syscall bitmask from syscall_get_nr()
Interrupt handlers are always invoked with interrupts disabled, so
remove all uses of the deprecated IRQF_DISABLED flag.
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linux has expected that interrupt handlers are executed with local
interrupts disabled for a while now, so ensure that this is the case on
Alpha even for non-device interrupts such as IPIs.
Without this patch, secondary boot results in the following backtrace:
warning: at kernel/softirq.c:139 __local_bh_enable+0xb8/0xd0()
trace:
__local_bh_enable+0xb8/0xd0
irq_enter+0x74/0xa0
scheduler_ipi+0x50/0x100
handle_ipi+0x84/0x260
do_entint+0x1ac/0x2e0
irq_exit+0x60/0xa0
handle_irq+0x98/0x100
do_entint+0x2c8/0x2e0
ret_from_sys_call+0x0/0x10
load_balance+0x3e4/0x870
cpu_idle+0x24/0x80
rcu_eqs_enter_common.isra.38+0x0/0x120
cpu_idle+0x40/0x80
rest_init+0xc0/0xe0
_stext+0x1c/0x20
A similar dump occurs if you try to reboot using magic-sysrq.
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Due to all of the goodness being packed into today's kernels, the
resulting image isn't as slim as it once was.
In light of this, don't pass -msmall-data to gcc, which otherwise results
in link failures due to impossible relocations when compiling anything but
the most trivial configurations.
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Tested-by: Thorsten Kranzkowski <dl8bcu@dl8bcu.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixes a NULL pointer dereference at boot on UP1500.
Cc: stable@vger.kernel.org
Reviewed-and-Tested-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Jay Estabrook <jay.estabrook@gmail.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch adds support for kvm_gfn_to_hva_cache_init functions for
reads and writes that will cross a page. If the range falls within
the same memslot, then this will be a fast operation. If the range
is split between two memslots, then the slower kvm_read_guest and
kvm_write_guest are used.
Tested: Test against kvm_clock unit tests.
Signed-off-by: Andrew Honig <ahonig@google.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
cache target when the device being cached is not itself wrapped with
device-mapper.
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Merge tag 'dm-3.9-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm
Pull device-mapper fixes from Alasdair Kergon:
"A pair of patches to fix the writethrough mode of the device-mapper
cache target when the device being cached is not itself wrapped with
device-mapper."
* tag 'dm-3.9-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm:
dm cache: reduce bio front_pad size in writeback mode
dm cache: fix writes to cache device in writethrough mode
ASPM
Revert "PCI/ACPI: Request _OSC control before scanning PCI root bus"
kexec
PCI: Don't try to disable Bus Master on disconnected PCI devices
Platform ROM images
PCI: Add PCI ROM helper for platform-provided ROM images
nouveau: Attempt to use platform-provided ROM image
radeon: Attempt to use platform-provided ROM image
Hotplug
PCI/ACPI: Always resume devices on ACPI wakeup notifications
PCI/PM: Disable runtime PM of PCIe ports
EISA
EISA/PCI: Fix bus res reference
EISA/PCI: Init EISA early, before PNP
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Merge tag 'pci-v3.9-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"PCI updates for v3.9:
ASPM
Revert "PCI/ACPI: Request _OSC control before scanning PCI root bus"
kexec
PCI: Don't try to disable Bus Master on disconnected PCI devices
Platform ROM images
PCI: Add PCI ROM helper for platform-provided ROM images
nouveau: Attempt to use platform-provided ROM image
radeon: Attempt to use platform-provided ROM image
Hotplug
PCI/ACPI: Always resume devices on ACPI wakeup notifications
PCI/PM: Disable runtime PM of PCIe ports
EISA
EISA/PCI: Fix bus res reference
EISA/PCI: Init EISA early, before PNP"
* tag 'pci-v3.9-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI/PM: Disable runtime PM of PCIe ports
PCI/ACPI: Always resume devices on ACPI wakeup notifications
PCI: Don't try to disable Bus Master on disconnected PCI devices
Revert "PCI/ACPI: Request _OSC control before scanning PCI root bus"
radeon: Attempt to use platform-provided ROM image
nouveau: Attempt to use platform-provided ROM image
EISA/PCI: Init EISA early, before PNP
EISA/PCI: Fix bus res reference
PCI: Add PCI ROM helper for platform-provided ROM images
Pull networking fixes from David Miller:
1) Fix erroneous sock_orphan() leading to crashes and double
kfree_skb() in NFC protocol. From Thierry Escande and Samuel Ortiz.
2) Fix use after free in remain-on-channel mac80211 code, from Johannes
Berg.
3) nf_reset() needs to reset the NF tracing cookie, otherwise we can
leak it from one namespace into another. Fix from Gao Feng and
Patrick McHardy.
4) Fix overflow in channel scanning array of mwifiex driver, from Stone
Piao.
5) Fix loss of link after suspend/shutdown in r8169, from Hayes Wang.
6) Synchronization of unicast address lists to the undelying device
doesn't work because whether to sync is maintained as a boolean
rather than a true count. Fix from Vlad Yasevich.
7) Fix corruption of TSO packets in atl1e by limiting the segmented
packet length. From Hannes Frederic Sowa.
8) Revert bogus AF_UNIX credential passing change and fix the
coalescing issue properly, from Eric W Biederman.
9) Changes of ipv4 address lifetime settings needs to generate a
notification, from Jiri Pirko.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (22 commits)
netfilter: don't reset nf_trace in nf_reset()
net: ipv4: notify when address lifetime changes
ixgbe: fix registration order of driver and DCA nofitication
af_unix: If we don't care about credentials coallesce all messages
Revert "af_unix: dont send SCM_CREDENTIAL when dest socket is NULL"
bonding: remove sysfs before removing devices
atl1e: limit gso segment size to prevent generation of wrong ip length fields
net: count hw_addr syncs so that unsync works properly.
r8169: fix auto speed down issue
netfilter: ip6t_NPT: Fix translation for non-multiple of 32 prefix lengths
mwifiex: limit channel number not to overflow memory
NFC: microread: Fix build failure due to a new MEI bus API
iwlwifi: dvm: fix the passive-no-RX workaround
netfilter: nf_conntrack: fix error return code
NFC: llcp: Keep the connected socket parent pointer alive
mac80211: fix idle handling sequence
netfilter: nfnetlink_acct: return -EINVAL if object name is empty
netfilter: nfnetlink_queue: fix error return code in nfnetlink_queue_init()
netfilter: reset nf_trace in nf_reset
mac80211: fix remain-on-channel cancel crash
...
eboot.o and efi_stub_$(BITS).o didn't get added to "targets", and hence
their .cmd files don't get included by the build machinery, leading to
the files always getting rebuilt.
Rather than adding the two files individually, take the opportunity and
add $(VMLINUX_OBJS) to "targets" instead, thus allowing the assignment
at the top of the file to be shrunk quite a bit.
At the same time, remove a pointless flags override line - the variable
assigned to was misspelled anyway, and the options added are
meaningless for assembly sources.
[ hpa: the patch is not minimal, but I am taking it for -urgent anyway
since the excess impact of the patch seems to be small enough. ]
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/515C5D2502000078000CA6AD@nat28.tlf.novell.com
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Commit 130549fe ("netfilter: reset nf_trace in nf_reset") added code
to reset nf_trace in nf_reset(). This is wrong and unnecessary.
nf_reset() is used in the following cases:
- when passing packets up the the socket layer, at which point we want to
release all netfilter references that might keep modules pinned while
the packet is queued. nf_trace doesn't matter anymore at this point.
- when encapsulating or decapsulating IPsec packets. We want to continue
tracing these packets after IPsec processing.
- when passing packets through virtual network devices. Only devices on
that encapsulate in IPv4/v6 matter since otherwise nf_trace is not
used anymore. Its not entirely clear whether those packets should
be traced after that, however we've always done that.
- when passing packets through virtual network devices that make the
packet cross network namespace boundaries. This is the only cases
where we clearly want to reset nf_trace and is also what the
original patch intended to fix.
Add a new function nf_reset_trace() and use it in dev_forward_skb() to
fix this properly.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull MIPS fixes from Ralf Baechle:
"Fixes for a number of small glitches in various corners of the MIPS
tree. No particular areas is standing out.
With this applied all MIPS defconfigs are building fine. No merge
conflicts are expected."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Delete definition of SA_RESTORER.
MIPS: Fix ISA level which causes secondary cache init bypassing and more
MIPS: Fix build error cavium-octeon without CONFIG_SMP
MIPS: Kconfig: Rename SNIPROM too
MIPS: Alchemy: Fix typo "CONFIG_DEBUG_PCI"
MIPS: Unbreak function tracer for 64-bit kernel.
Pull GFS2 fixes from Steven Whitehouse:
"There are two patches which fix up a couple of minor issues in the DLM
interface code, a missing error path in gfs2_rs_alloc(), one patch
which fixes a problem during "withdraw" and a fix for discards/FITRIM
when using 4k sector sized devices."
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes:
GFS2: Issue discards in 512b sectors
GFS2: Fix unlock of fcntl locks during withdrawn state
GFS2: return error if malloc failed in gfs2_rs_alloc()
GFS2: use memchr_inv
GFS2: use kmalloc for lvb bitmap
Commit e2eed58b4f ("IB/qib: change QLogic to Intel") moved a firmware
file potentially breaking the ABI.
This patch reverts that aspect of the fix as well as reverting the
firmware name as used in qib.
Reported-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A bunch of small driver fixes plus a fix for error handling in the core
- nothing too exciting overall.
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Merge tag 'spi-fix-v3.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc
Pull spi fixes from Mark Brown:
"A bunch of small driver fixes plus a fix for error handling in the
core - nothing too exciting overall."
* tag 'spi-fix-v3.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc:
spi/mpc512x-psc: optionally keep PSC SS asserted across xfer segmensts
spi: Unlock a spinlock before calling into the controller driver.
spi/s3c64xx: modified error interrupt handling and init
spi/bcm63xx: don't disable non enabled clocks in probe error path
spi/bcm63xx: Remove unused variable
spi: slink-tegra20: move runtime pm calls to transfer_one_message
This patch changes GFS2's discard issuing code so that it calls
function sb_issue_discard rather than blkdev_issue_discard. The
code was calling blkdev_issue_discard and specifying the correct
sector offset and sector size, but blkdev_issue_discard expects
these values to be in terms of 512 byte sectors, even if the native
sector size for the device is different. Calling sb_issue_discard
with the BLOCK size instead ensures the correct block-to-512b-sector
translation. I verified that "minlen" is specified in blocks, so
comparing it to a number of blocks is correct.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This reverts commit 0ef1594c01.
This patch introduced a few races which cannot be easily fixed with a
small follow-up patch. Furthermore, the SoC with the broken hardware
register, which this patch intended to add support for, can only be used
with device trees, which this driver currently does not support.
[ Here is the discussion that led to this "revert" patch:
https://lkml.org/lkml/2013/4/3/176 ]
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'fbdev-fixes-3.9-rc6' of git://gitorious.org/linux-omap-dss2/linux
Pull fbdev fixes from Tomi Valkeinen:
"Fix uvesafb crash bug and typoed flag name in fbmon's new videomode
code"
* tag 'fbdev-fixes-3.9-rc6' of git://gitorious.org/linux-omap-dss2/linux:
video:uvesafb: Fix dereference NULL pointer code path
fbmon: use VESA_DMT_VSYNC_HIGH to fix typo
This contains slightly more volumes than usual at this stage, mostly
because of my vacation in the last week.
Nothing to scare, all small and/or trivial fixes:
- Fix loop path handling in ASoC DAPM
- Some memory handling fixes in ASoC core
- Fix spear_pcm to adapt to the updated API
- HD-audio HDMI ELD handling fixes
- Fix for CM6331 USB-audio SRC change bugs
- Revert power_save_controller option change due to user-space usage
- A few other small ASoC and HD-audio fixes
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Merge tag 'sound-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This contains slightly more volumes than usual at this stage, mostly
because of my vacation in the last week. Nothing to scare, all small
and/or trivial fixes:
- Fix loop path handling in ASoC DAPM
- Some memory handling fixes in ASoC core
- Fix spear_pcm to adapt to the updated API
- HD-audio HDMI ELD handling fixes
- Fix for CM6331 USB-audio SRC change bugs
- Revert power_save_controller option change due to user-space usage
- A few other small ASoC and HD-audio fixes"
* tag 'sound-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/generic - fix uninitialized variable
Revert "ALSA: hda - Allow power_save_controller option override DCAPS"
ALSA: hda - fix typo in proc output
ALSA: hda - Enabling Realtek ALC 671 codec
ALSA: usb: Work around CM6631 sample rate change bug
ALSA: hda - bug fix on HDMI ELD debug message
ALSA: hda - bug fix on return value when getting HDMI ELD info
ASoC: dma-sh7760: Fix compile error
ASoC: core: fix invalid free of devm_ allocated data
ASoC: spear_pcm: Update to new pcm_new() API
ASoC:: max98090: Remove executable bit
ASoC: dapm: Fix pointer dereference in is_connected_output_ep()
ASoC: pcm030 audio fabric: remove __init from probe
ASoC: imx-ssi: Fix occasional AC97 reset failure
ASoC: core: fix possible memory leak in snd_soc_bytes_put()
ASoC: wm_adsp: fix possible memory leak in wm_adsp_load_coeff()
ASoC: dapm: Fix handling of loops
ASoC: si476x: Add missing break for SNDRV_PCM_FORMAT_S8 switch case
A recent patch to fix the dm cache target's writethrough mode extended
the bio's front_pad to include a 1056-byte struct dm_bio_details.
Writeback mode doesn't need this, so this patch reduces the
per_bio_data_size to 16 bytes in this case instead of 1096.
The dm_bio_details structure was added in "dm cache: fix writes to
cache device in writethrough mode" which fixed commit e2e74d617e ("dm
cache: fix race in writethrough implementation"). In writeback mode
we avoid allocating the writethrough-specific members of the
per_bio_data structure (the dm_bio_details structure included).
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
The dm-cache writethrough strategy introduced by commit e2e74d617e
("dm cache: fix race in writethrough implementation") issues a bio to
the origin device, remaps and then issues the bio to the cache device.
This more conservative in-series approach was selected to favor
correctness over performance (of the previous parallel writethrough).
However, this in-series implementation that reuses the same bio to write
both the origin and cache device didn't take into account that the block
layer's req_bio_endio() modifies a completing bio's bi_sector and
bi_size. So the new writethrough strategy needs to preserve these bio
fields, and restore them before submission to the cache device,
otherwise nothing gets written to the cache (because bi_size is 0).
This patch adds a struct dm_bio_details field to struct per_bio_data,
and uses dm_bio_record() and dm_bio_restore() to ensure the bio is
restored before reissuing to the cache device. Adding such a large
structure to the per_bio_data is not ideal but we can improve this
later, for now correctness is the important thing.
This problem initially went unnoticed because the dm-cache test-suite
uses a linear DM device for the dm-cache device's origin device.
Writethrough worked as expected because DM submits a *clone* of the
original bio, so the original bio which was reused for the cache was
never touched.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
SA_RESTORER used to be defined as 0x04000000 but only the O32 ABI ever
supported its use and no libc was using it, so the entire sa-restorer
functionality was removed with lmo commit 39bffc12c3580ab [Zap sa_restorer.]
for 2.5.48 retaining only the SA_RESTORER definition as a reminder to avoid
accidental reuse of the mask bit.
Upstream cdef9602fbf1871a43f0f1b5cea10dd0f275167d [signal: always clear
sa_restorer on execve] adds code that assumes sa_sigaction has an
sa_restorer field, if SA_RESTORER is defined which would break MIPS.
So remove the SA_RESTORER definition before the v3.8.4 merge.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
(cherry picked from commit 17da8d63add23830892ac4dc2cbb3b5d4ffb79a8)
