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This provides helper methods to coordinate between CPUs coming down
and CPUs going up, as well as documentation on the used algorithms,
so that cluster teardown and setup
operations are not done for a cluster simultaneously.
For use in the power_down() implementation:
* __mcpm_cpu_going_down(unsigned int cluster, unsigned int cpu)
* __mcpm_outbound_enter_critical(unsigned int cluster)
* __mcpm_outbound_leave_critical(unsigned int cluster)
* __mcpm_cpu_down(unsigned int cluster, unsigned int cpu)
The power_up_setup() helper should do platform-specific setup in
preparation for turning the CPU on, such as invalidating local caches
or entering coherency. It must be assembler for now, since it must
run before the MMU can be switched on. It is passed the affinity level
for which initialization should be performed.
Because the mcpm_sync_struct content is looked-up and modified
with the cache enabled or disabled depending on the code path, it is
crucial to always ensure proper cache maintenance to update main memory
right away. The sync_cache_*() helpers are used to that end.
Also, in order to prevent a cached writer from interfering with an
adjacent non-cached writer, we ensure each state variable is located to
a separate cache line.
Thanks to Nicolas Pitre and Achin Gupta for the help with this
patch.
Signed-off-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Reviewed-by: Will Deacon <will.deacon@arm.com>
8250 driver has been (re)renamed to 8250_core.c by commit
9196d8acd7f91758872108958dfded7684628444. Follow that change to fix the
following error when building htmldocs:
docproc: /work/cross/linux//drivers/tty/serial/8250/8250.c: No such file or directory
Acked-by: Rob landley <rob@landley.net>
Signed-off-by: Vincent Stehlé <v-stehle@ti.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
DM RAID: Add message/status support for changing sync action
This patch adds a message interface to dm-raid to allow the user to more
finely control the sync actions being performed by the MD driver. This
gives the user the ability to initiate "check" and "repair" (i.e. scrubbing).
Two additional fields have been appended to the status output to provide more
information about the type of sync action occurring and the results of those
actions, specifically: <sync_action> and <mismatch_cnt>. These new fields
will always be populated. This is essentially the device-mapper way of doing
what MD controls through the 'sync_action' sysfs file and shows through the
'mismatch_cnt' sysfs file.
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
MD: Fix some typos/grammer in MD documentation
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Support the BGR666 format on the IPUv3 parallel display.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This adds a dwc_platform.ko module that can be loaded by using
compatible = "snps,dwc2" in a device tree.
Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl>
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The usual scheme to initialize a cpuidle driver on a SMP is:
cpuidle_register_driver(drv);
for_each_possible_cpu(cpu) {
device = &per_cpu(cpuidle_dev, cpu);
cpuidle_register_device(device);
}
This code is duplicated in each cpuidle driver.
On UP systems, it is done this way:
cpuidle_register_driver(drv);
device = &per_cpu(cpuidle_dev, cpu);
cpuidle_register_device(device);
On UP, the macro 'for_each_cpu' does one iteration:
#define for_each_cpu(cpu, mask) \
for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
Hence, the initialization loop is the same for UP than SMP.
Beside, we saw different bugs / mis-initialization / return code unchecked in
the different drivers, the code is duplicated including bugs. After fixing all
these ones, it appears the initialization pattern is the same for everyone.
Please note, some drivers are doing dev->state_count = drv->state_count. This is
not necessary because it is done by the cpuidle_enable_device function in the
cpuidle framework. This is true, until you have the same states for all your
devices. Otherwise, the 'low level' API should be used instead with the specific
initialization for the driver.
Let's add a wrapper function doing this initialization with a cpumask parameter
for the coupled idle states and use it for all the drivers.
That will save a lot of LOC, consolidate the code, and the modifications in the
future could be done in a single place. Another benefit is the consolidation of
the cpuidle_device variable which is now in the cpuidle framework and no longer
spread accross the different arch specific drivers.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Conflicts:
drivers/net/ethernet/emulex/benet/be_main.c
drivers/net/ethernet/intel/igb/igb_main.c
drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c
include/net/scm.h
net/batman-adv/routing.c
net/ipv4/tcp_input.c
The e{uid,gid} --> {uid,gid} credentials fix conflicted with the
cleanup in net-next to now pass cred structs around.
The be2net driver had a bug fix in 'net' that overlapped with the VLAN
interface changes by Patrick McHardy in net-next.
An IGB conflict existed because in 'net' the build_skb() support was
reverted, and in 'net-next' there was a comment style fix within that
code.
Several batman-adv conflicts were resolved by making sure that all
calls to batadv_is_my_mac() are changed to have a new bat_priv first
argument.
Eric Dumazet's TS ECR fix in TCP in 'net' conflicted with the F-RTO
rewrite in 'net-next', mostly overlapping changes.
Thanks to Stephen Rothwell and Antonio Quartulli for help with several
of these merge resolutions.
Signed-off-by: David S. Miller <davem@davemloft.net>
TMP432 is similar to TMP431 with a second external temperature sensor.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Conflicts:
arch/x86/kernel/cpu/perf_event_intel.c
Merge in the latest fixes before applying new patches, resolve the conflict.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Pull kdump fixes from Peter Anvin:
"The kexec/kdump people have found several problems with the support
for loading over 4 GiB that was introduced in this merge cycle. This
is partly due to a number of design problems inherent in the way the
various pieces of kdump fit together (it is pretty horrifically manual
in many places.)
After a *lot* of iterations this is the patchset that was agreed upon,
but of course it is now very late in the cycle. However, because it
changes both the syntax and semantics of the crashkernel option, it
would be desirable to avoid a stable release with the broken
interfaces."
I'm not happy with the timing, since originally the plan was to release
the final 3.9 tomorrow. But apparently I'm doing an -rc8 instead...
* 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
kexec: use Crash kernel for Crash kernel low
x86, kdump: Change crashkernel_high/low= to crashkernel=,high/low
x86, kdump: Retore crashkernel= to allocate under 896M
x86, kdump: Set crashkernel_low automatically
Pull x86 fixes from Peter Anvin:
"Three groups of fixes:
1. Make sure we don't execute the early microcode patching if family
< 6, since it would touch MSRs which don't exist on those
families, causing crashes.
2. The Xen partial emulation of HyperV can be dealt with more
gracefully than just disabling the driver.
3. More EFI variable space magic. In particular, variables hidden
from runtime code need to be taken into account too."
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, microcode: Verify the family before dispatching microcode patching
x86, hyperv: Handle Xen emulation of Hyper-V more gracefully
x86,efi: Implement efi_no_storage_paranoia parameter
efi: Export efi_query_variable_store() for efivars.ko
x86/Kconfig: Make EFI select UCS2_STRING
efi: Distinguish between "remaining space" and actually used space
efi: Pass boot services variable info to runtime code
Move utf16 functions to kernel core and rename
x86,efi: Check max_size only if it is non-zero.
x86, efivars: firmware bug workarounds should be in platform code
Matt Fleming (1):
x86, efivars: firmware bug workarounds should be in platform
code
Matthew Garrett (3):
Move utf16 functions to kernel core and rename
efi: Pass boot services variable info to runtime code
efi: Distinguish between "remaining space" and actually used
space
Richard Weinberger (2):
x86,efi: Check max_size only if it is non-zero.
x86,efi: Implement efi_no_storage_paranoia parameter
Sergey Vlasov (2):
x86/Kconfig: Make EFI select UCS2_STRING
efi: Export efi_query_variable_store() for efivars.ko
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Multiple parts of next/drivers are prerequisites for the final
exynos multiplatform changes, so let's pull in the entire branch.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This is a series originally prepared for inclusion in 3.9, which did
not work out because of dependencies on the dmaengine driver. All the
changes for the dmaengine code are merged in 3.9 now, so we can finally
do the switchover and remove the now unnecessary dma definitions for
spear13xx from the platform code.
The dma platform_data actually made up the majority of the spear13xx
platform code overall, so moving that into device tree files makes the
code substantially smaller.
* spear/dwdma:
ata: arasan: remove the need for platform_data
ARM: SPEAr13xx: Pass generic DW DMAC platform data from DT
serial: pl011: use generic DMA slave configuration if possible
spi: pl022: use generic DMA slave configuration if possible
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This adds a complete DT binding for the arasan device driver. There is
currently only one user, which is the spear13xx platform, so we don't
actually have to parse all the properties until another user comes in,
but this does use the generic DMA binding to find the DMA channel.
The patch is untested so far and is part of a series to convert
the spear platform over to use the generic DMA binding, so it
should stay with the rest of the series.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.linux@linaro.org>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Jeff Garzik <jgarzik@redhat.com>
Cc: devicetree-discuss@lists.ozlabs.org
Document the new kernel commandline parameters in the
appropriate file.
Reviewed-by: Shuah Khan <shuahkhan@gmail.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
We need full dynticks CPU to also be RCU nocb so
that we don't have to keep the tick to handle RCU
callbacks.
Make sure the range passed to nohz_full= boot
parameter is a subset of rcu_nocbs=
The CPUs that fail to meet this requirement will be
excluded from the nohz_full range. This is checked
early in boot time, before any CPU has the opportunity
to stop its tick.
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Gilad Ben Yossef <gilad@benyossef.com>
Cc: Hakan Akkan <hakanakkan@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
The timekeeping job must be able to run early on boot
because there may be some pre-SMP (and thus pre-initcalls )
components that rely on it. The IO-APIC is one such users
as it tests the timer health by watching jiffies progression.
Given that it happens before we know the initial online
set, we can't rely on it to select a timekeeper. We need
one before SMP time otherwise we simply crash on boot.
To fix this and keep things simple for now, force the boot CPU
outside of the full dynticks range in any case and do this early
on kernel parameter parsing time.
We might want a trickier solution later, expecially for aSMP
architectures that need to assign housekeeping tasks to arbitrary
low power CPUs.
But it's still first pass KISS time for now.
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Gilad Ben Yossef <gilad@benyossef.com>
Cc: Hakan Akkan <hakanakkan@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
This commit adds a driver that exposes all the radio related
functionality of the Si476x series of chips via the V4L2 subsystem.
[mchehab@redhat.com: change it to depends on MFD_SI476X_CORE instead of
selecting it; vidioc_s_register now uses const struct]
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add properties for some of the more important bits of platform data and
fill out the binding document.
Not all of the current platform data is suitable for the sort of fixed
configuration that is done using DT, some of it should have runtime
mechanisms added instead and some is unlikely to ever be used in practical
systems.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The main additional change here is Lars-Peter's DMA work plus the
platform conversions which have been tested - getting this in mainline
will make life easier for development after the merge window. These
factor a large chunk of code out of the drivers for the platforms using
dmaengine, greatly simplifying development.
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Merge tag 'asoc-v3.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: More updates for v3.10
The main additional change here is Lars-Peter's DMA work plus the
platform conversions which have been tested - getting this in mainline
will make life easier for development after the merge window. These
factor a large chunk of code out of the drivers for the platforms using
dmaengine, greatly simplifying development.
This set of patches enables remoteproc support
on DA850 EVM and fixes some sparse warnings for
the same board.
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Merge tag 'davinci-for-v3.10/board-2-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/boards
From Sekhar Nori:
v3.10 board updates for DaVinci
This set of patches enables remoteproc support
on DA850 EVM and fixes some sparse warnings for
the same board.
* tag 'davinci-for-v3.10/board-2-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci: da850 evm: fix const qualifier placement
ARM: davinci: da850 board: add remoteproc support
ARM: davinci: ensure global variables are declared
ARM: davinci: sram.c: fix incorrect type in assignment
ARM: davinci: da8xx dt: make file local symbols static
ARM: davinci: da8xx: add remoteproc support
ARM: davinci: remove test for undefined Kconfig macro
ARM: davinci: mmc: derive version information from device name
ARM: davinci: da850: add ECAP & EHRPWM clock nodes
ARM: davinci: clk framework support for enable/disable functionality
This set of patches add support for remoteproc
used to control the DSP and also fix sparse
errors existing for quite some time.
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Merge tag 'davinci-for-v3.10/soc-2-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/soc
From Sekhar Nori:
v3.10 SoC updates for DaVinci
This set of patches add support for remoteproc
used to control the DSP and also fix sparse
errors existing for quite some time.
* tag 'davinci-for-v3.10/soc-2-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci: ensure global variables are declared
ARM: davinci: sram.c: fix incorrect type in assignment
ARM: davinci: da8xx dt: make file local symbols static
ARM: davinci: da8xx: add remoteproc support
Signed-off-by: Olof Johansson <olof@lixom.net>
This set of patches adds support for PWMs and SPI
controller present on DA850 and for SPI flash present on
DA850 EVM.
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Merge tag 'davinci-for-v3.10/dt-2-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/dt2
From Sekhar Nori:
v3.10 DT updates for DaVinci
This set of patches adds support for PWMs and SPI
controller present on DA850 and for SPI flash present on
DA850 EVM.
* tag 'davinci-for-v3.10/dt-2-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci: da850-evm: add SPI flash support
ARM: davinci: da850: override SPI DT node device name
ARM: davinci: da850: add SPI1 DT node
spi/davinci: add DT binding documentation
spi/davinci: no wildcards in DT compatible property
ARM: davinci: da850: add EHRPWM & ECAP DT node
ARM: davinci: da850: override mmc DT node device name
ARM: davinci: da850: add mmc DT entries
mmc: davinci_mmc: add DT support
ARM: davinci: da850: add tps6507x regulator DT data
ARM: regulator: add tps6507x device tree data
ARM: davinci: remove test for undefined Kconfig macro
ARM: davinci: mmc: derive version information from device name
ARM: davinci: da850: add ECAP & EHRPWM clock nodes
ARM: davinci: clk framework support for enable/disable functionality
Signed-off-by: Olof Johansson <olof@lixom.net>
This adds new debug feature information so that the DAWR can be
identified by userspace tools like GDB.
Unfortunately the DAWR doesn't sit nicely into the current description
that ptrace provides to userspace via struct ppc_debug_info. It doesn't
allow for specifying that only some ranges are possible or even the end
alignment constraints (DAWR only allows 512 byte wide ranges which can't
cross a 512 byte boundary).
After talking to Edjunior Machado (GDB ppc developer), it was decided
this was the best approach. Just mark it as debug feature DAWR and
tools like GDB can internally decide the constraints.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
PPC_PREP is marked as BROKEN since v2.6.15. Remove all PReP specific
code now.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Per hpa, use crashkernel=X,high crashkernel=Y,low instead of
crashkernel_hign=X crashkernel_low=Y. As that could be extensible.
-v2: according to Vivek, change delimiter to ;
-v3: let hign and low only handle simple form and it conforms to
description in kernel-parameters.txt
still keep crashkernel=X override any crashkernel=X,high
crashkernel=Y,low
-v4: update get_last_crashkernel returning and add more strict
checking in parse_crashkernel_simple() found by HATAYAMA.
-v5: Change delimiter back to , according to HPA.
also separate parse_suffix from parse_simper according to vivek.
so we can avoid @pos in that path.
-v6: Tight the checking about crashkernel=X,highblahblah,high
found by HTYAYAMA.
Cc: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/1366089828-19692-5-git-send-email-yinghai@kernel.org
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Vivek found old kexec-tools does not work new kernel anymore.
So change back crashkernel= back to old behavoir, and add crashkernel_high=
to let user decide if buffer could be above 4G, and also new kexec-tools will
be needed.
-v2: let crashkernel=X override crashkernel_high=
update description about _high will be ignored by crashkernel=X
-v3: update description about kernel-parameters.txt according to Vivek.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/1366089828-19692-4-git-send-email-yinghai@kernel.org
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Chao said that kdump does does work well on his system on 3.8
without extra parameter, even iommu does not work with kdump.
And now have to append crashkernel_low=Y in first kernel to make
kdump work.
We have now modified crashkernel=X to allocate memory beyong 4G (if
available) and do not allocate low range for crashkernel if the user
does not specify that with crashkernel_low=Y. This causes regression
if iommu is not enabled. Without iommu, swiotlb needs to be setup in
first 4G and there is no low memory available to second kernel.
Set crashkernel_low automatically if the user does not specify that.
For system that does support IOMMU with kdump properly, user could
specify crashkernel_low=0 to save that 72M low ram.
-v3: add swiotlb_size() according to Konrad.
-v4: add comments what 8M is for according to hpa.
also update more crashkernel_low= in kernel-parameters.txt
-v5: update changelog according to Vivek.
-v6: Change description about swiotlb referring according to HATAYAMA.
Reported-by: WANG Chao <chaowang@redhat.com>
Tested-by: WANG Chao <chaowang@redhat.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/1366089828-19692-2-git-send-email-yinghai@kernel.org
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
the following changes:
- Add sched_clock selection logic to select the highest frequency clock
- Use full 64-bit arch timer counter for sched_clock
- Convert arch timer, sp804 and integrator-cp timers to CLKSRC_OF and
adapt all users to use clocksource_of_init
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Merge tag 'clksrc-cleanup-for-3.10-part2' of git://sources.calxeda.com/kernel/linux into late/clksrc
This is the 2nd part of ARM timer clean-ups for 3.10. This series has
the following changes:
- Add sched_clock selection logic to select the highest frequency clock
- Use full 64-bit arch timer counter for sched_clock
- Convert arch timer, sp804 and integrator-cp timers to CLKSRC_OF and
adapt all users to use clocksource_of_init
* tag 'clksrc-cleanup-for-3.10-part2' of git://sources.calxeda.com/kernel/linux:
devtree: add binding documentation for sp804
ARM: integrator-cp: convert use CLKSRC_OF for timer init
ARM: versatile: use OF init for sp804 timer
ARM: versatile: add versatile dtbs to dtbs target
ARM: vexpress: remove extra timer-sp control register clearing
ARM: dts: vexpress: disable CA9 core tile sp804 timer
ARM: vexpress: remove sp804 OF init
ARM: highbank: use OF init for sp804 timer
ARM: timer-sp: convert to use CLKSRC_OF init
OF: add empty of_device_is_available for !OF
ARM: convert arm/arm64 arch timer to use CLKSRC_OF init
ARM: make machine_desc->init_time default to clocksource_of_init
ARM: arch_timer: use full 64-bit counter for sched_clock
ARM: make sched_clock just call a function pointer
ARM: sched_clock: allow changing to higher frequency counter
Signed-off-by: Olof Johansson <olof@lixom.net>
This has a nasty set of conflicts with the exynos MCT code, which was
moved in a separate branch, and then fixed up when merged in, but still
conflicts a bit here. It should have been sorted out by this merge though.
Using this parameter one can disable the storage_size/2 check if
he is really sure that the UEFI does sane gc and fulfills the spec.
This parameter is useful if a devices uses more than 50% of the
storage by default.
The Intel DQSW67 desktop board is such a sucker for exmaple.
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Add remoteproc platform device for controlling the DSP
on da8xx. The patch uses CMA-based reservation of physical
memory block for DSP use. A new kernel command-line parameter
has been added to allow boot-time specification of the physical
memory block.
Signed-off-by: Robert Tivy <rtivy@ti.com>
[nsekhar@ti.com: edit commit message for readability and
style improvements]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
The i2c-arb-gpio-challenge driver implements an I2C arbitration scheme
where masters need to claim the bus with a GPIO before they can start
a transaction. This should generally only be used when standard I2C
multimaster isn't appropriate for some reason (errata/bugs).
This driver is based on code that Simon Glass added to the i2c-s3c2410
driver in the Chrome OS kernel 3.4 tree. The current incarnation as a
mux driver is as suggested by Grant Likely. See
<https://patchwork.kernel.org/patch/1877311/> for some history.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This property is meant to be used in device nodes which represent
power_supply devices that wish to provide a list of supplies which
provide them power, such as a battery listing its chargers.
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
Each of ST-Ericsson X500 chip set series consists of both ABX500 and DBX500
chips. This is ABX500 hwmon driver, where the abx500.c is a common layer for
all ABX500s, and the ab8500.c is specific for AB8500 chip. Under this designed
structure, other chip specific files can be added simply using the same common
layer abx500.c.
Signed-off-by: Hongbo Zhang <hongbo.zhang@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
This reverts commit 09495dda6a62c74b13412a63528093910ef80edd.
The description is incomplete and the location of this file
is incorrect. Based on discussion with the Samsung media and DRM subsystem
maintainers, the documentaion of Samsung G2D bindings has been placed at:
Documentation/devicetree/bindings/gpu/samsung-g2d.txt
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Binding Documents for drm-devices are placed in
Documentation/devicetree/bindings/drm/*. But these devices are common
for v4l framework, hence moved to a common place at
Documentation/devicetree/bindings/video/. 'exynos_' prefix is added to
associate them with exynos soc series.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
With device core now able to setup the default pin configuration,
the pin configuration code based on the deprecated Samsung specific
gpio bindings is removed.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Since the GENERIC_GPIO has been removed and the documentation of it
has been modified, this patch updates the corresponding documentation of
gpio in Chinese.
Signed-off-by: Chen Baozi <baozich@gmail.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
GENERIC_GPIO has been made equivalent to GPIOLIB in architecture code
and all driver code has been switch to depend on GPIOLIB. It is thus
safe to have GENERIC_GPIO removed.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Pull uprobes updates from Oleg Nesterov:
- "uretprobes" - an optimization to uprobes, like kretprobes are an optimization
to kprobes. "perf probe -x file sym%return" now works like kretprobes.
- PowerPC fixes plus a couple of cleanups/optimizations in uprobes and trace_uprobes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
