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next/cleanup
From Maxime Ripard:
Cleanups for Allwinner sunXi architecture:
- Remove sunxi.dtsi
- Switch to clocksource/irqchip device tree handlers
- Cleanup the watchdog code
* tag 'sunxi-cleanup-for-3.10' of git://github.com/mripard/linux:
ARM: sunxi: Rework the restart code
irqchip: sunxi: Rename sunxi to sun4i
irqchip: sunxi: Make use of the IRQCHIP_DECLARE macro
clocksource: sunxi: Rename sunxi to sun4i
clocksource: sunxi: make use of CLKSRC_OF
clocksource: sunxi: Cleanup the timer code
clocksource: make CLOCKSOURCE_OF_DECLARE type safe
Signed-off-by: Olof Johansson <olof@lixom.net>
Add/change conflict in drivers/clocksource/Makefile resolved.
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During the introduction of the Allwinner SoC platforms, sunxi was
initially meant as a generic name for all the variants of the Allwinner
SoC.
It was ok at the time of the support of only the A10 and A13 that
looks pretty much the same, but it's beginning to be troublesome with
the future addition of the Allwinner A31 (sun6i) that is quite
different, and would introduce some weird logic, where sunxi would
actually mean in some case sun4i and sun5i but without sun6i...
Moreover, it makes the compatible strings naming scheme not consistent
with other architectures, where usually for this kind of compability, we
just use the oldest SoC name that has this IP, so let's do just this.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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Using CLKSRC_OF allows to remove the SoC specific sunxi_timer.h header,
and instead of using a custom init function in the machine definition
use the standard clocksource_of_init function.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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The timer code was not exact to some aspects, since most of this code
was written wihout any datasheet. Make the needed corrections to match
the datasheet.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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This ensures that a function pointer passed into CLOCKSOURCE_OF_DECLARE
takes the same arguments that we use for calling that function later.
Also fix the extraneous semicolon at end of the CLOCKSOURCE_OF_DECLARE
definition.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Rob Herring <rob.herring@calxeda.com>
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Bringin in clk subsystem dependencies needed by sunxi.
* depends/clk-for-3.10: (26 commits)
clk: sunxi: drop an unnecesary kmalloc
clk: sunxi: drop CLK_IGNORE_UNUSED
clk: sunxi: Add support for AXI, AHB, APB0 and APB1 gates
clk: divider: Introduce CLK_DIVIDER_ALLOW_ZERO flag
clk: mvebu: Use common of_clk_init() function
clk: fix clk_mux::flags kerneldoc
clk: allow reentrant calls into the clk framework
clk: abstract locking out into helper functions
clk: zynq: Add missing zynq clk header
clk: sunxi: rename compatible strings
arm: sunxi: Add useful information about sunxi clocks
clk: arm: sunxi: Add a new clock driver for sunxi SOCs
clk: ux500: Fix prcmu clocks registration
ARM: imx: adapt clk_busy_mux to new clk_mux struct
clk: Add composite clock type
clk: add table lookup to mux
clk: Fix incorrect return type in clk.c
clk: prima2: fix return value check in sirfsoc_of_clk_init()
clk:SPEAr1340: Correct parent clock configuration
documentation: clk: fix couple of misspelling
...
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git://git.linaro.org/people/shawnguo/linux-2.6 into next/cleanup
From Shawn Guo <shawn.guo@linaro.org>:
The mxs cleanup for 3.10:
* Clean up timer code and move it into drivers/clocksource
* Clean up icoll code and move it into drivers/irqchip
* Clean up clock code to not include <mach/*> headers
* Clean up rtc-stmp3xxx, mxs-lradc and mxs-saif to not include <mach/*>
headers
* Clean up mach-mxs code to get it prepared for multiplatform support
* tag 'mxs-cleanup-3.10' of git://git.linaro.org/people/shawnguo/linux-2.6: (26 commits)
clocksource: mxs_timer: Add semicolon at end of line
ARM: mxs: remove unused headers
ARM: mxs: merge imx23 and imx28 into one machine_desc
ARM: mxs: remove common.h
ARM: mxs: move mxs_get_ocotp() into mach-mxs.c
ARM: mxs: remove mm.c
ARM: mxs: use debug_ll_io_init for low-level debug
ARM: mxs: get ocotp base address from device tree
ARM: mxs: remove system.c
ARM: mxs: get reset address from device tree
ARM: mxs: remove empty hardware.h
ASoC: mxs-saif: remove mach header inclusion
iio: mxs-lradc: remove unneeded mach header inclusion
rtc: stmp3xxx: use stmp_reset_block() instead
clk: mxs: remove the use of mach level IO accessor
clk: mxs: get base address from device tree
ARM: mxs: remove unneeded mach-types.h inclusion
ARM: mxs: move icoll driver into drivers/irqchip
ARM: mxs: call stmp_reset_block() in icoll
ARM: mxs: get icoll base address from device tree
...
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Fix the following build error:
drivers/clocksource/mxs_timer.c:304:1: error: expected ',' or ';' at end of input
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Move mxs timer driver into drivers/clocksource as mxs_timer.c.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/cleanup
From Stephen Warren <swarren@wwwdotorg.org>:
ARM: tegra: cleanup
This branch includes various cleanup of the core Tegra support.
* Unification of the separate board-dt-tegra*.c files into a single
tegra.c, now that everything is DT-driven and basically identical.
* Use of_clk_get() in the Tegra clocksource driver so that clocks are
described in DT rather than hard-coding clock names.
* Some cleanup of the PMC-related code, with the aim that the PMC
"driver" contains more of the code that touches PMC registers, rather
than spreading PMC register accesses through other files.
* Conversion of the "PMC" driver to acquire resources describe in device
tree rather than hard-coding them.
* Use of common code for the CPU sleep TLB invalidation.
This branch is based on the previous fixes pull request.
* tag 'tegra-for-3.10-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
ARM: tegra: use setup_mm_for_reboot rather than explicit pgd switch
ARM: tegra: replace the CPU power on function with PMC call
ARM: tegra: pmc: add power on function for secondary CPUs
ARM: tegra: pmc: convert PMC driver to support DT only
ARM: tegra: fix the PMC compatible string in DT
ARM: tegra: pmc: add specific compatible DT string for Tegra30 and Tegra114
ARM: tegra: refactor tegra{20,30}_boot_secondary
clocksource: tegra: move to of_clk_get
ARM: tegra: Unify Device tree board files
ARM: tegra: Rename board-dt-tegra20.c to tegra.c
ARM: tegra: Unify tegra{20,30,114}_init_early()
Conflicts:
drivers/clocksource/tegra20_timer.c
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The new clockframework introduced DT IDs for each clock. To be able to remove
the device registrations, this driver needs to be updated to use the DT IDs.
Note that the actual removal of the clk_register_clkdev() calls will be done
in a later series.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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Now that we have OF based init with CLKSRC_OF, convert smp_twd init
function to use it and covert all callers of
twd_local_timer_of_register.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-omap@vger.kernel.org
Cc: spear-devel@list.st.com
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
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We've already matched the node, so use the node pointer passed in. The rtc
init was intermingled with the timer init, so split this out to a separate
init function.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
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In cases where we have multiple nodes of the same type, we may need the
node pointer to know which node was matched. Passing the node pointer
also keeps the init function from having to match the node a 2nd time.
Update bcm2835, vt8500, and tegra20 init functions for the new function
prototype. Further tegra20 clean-ups are in follow-up commit.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Tested-by: Michal Simek <michal.simek@xilinx.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core timer updates from Ingo Molnar:
"The main changes in this cycle's merge are:
- Implement shadow timekeeper to shorten in kernel reader side
blocking, by Thomas Gleixner.
- Posix timers enhancements by Pavel Emelyanov:
- allocate timer ID per process, so that exact timer ID allocations
can be re-created be checkpoint/restore code.
- debuggability and tooling (/proc/PID/timers, etc.) improvements.
- suspend/resume enhancements by Feng Tang: on certain new Intel Atom
processors (Penwell and Cloverview), there is a feature that the
TSC won't stop in S3 state, so the TSC value won't be reset to 0
after resume. This can be taken advantage of by the generic via
the CLOCK_SOURCE_SUSPEND_NONSTOP flag: instead of using the RTC to
recover/approximate sleep time, the main (and precise) clocksource
can be used.
- Fix /proc/timer_list for 4096 CPUs by Nathan Zimmer: on so many
CPUs the file goes beyond 4MB of size and thus the current
simplistic seqfile approach fails. Convert /proc/timer_list to a
proper seq_file with its own iterator.
- Cleanups and refactorings of the core timekeeping code by John
Stultz.
- International Atomic Clock time is managed by the NTP code
internally currently but not exposed externally. Separate the TAI
code out and add CLOCK_TAI support and TAI support to the hrtimer
and posix-timer code, by John Stultz.
- Add deep idle support enhacement to the broadcast clockevents core
timer code, by Daniel Lezcano: add an opt-in CLOCK_EVT_FEAT_DYNIRQ
clockevents feature (which will be utilized by future clockevents
driver updates), which allows the use of IRQ affinities to avoid
spurious wakeups of idle CPUs - the right CPU with an expiring
timer will be woken.
- Add new ARM bcm281xx clocksource driver, by Christian Daudt
- ... various other fixes and cleanups"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
clockevents: Set dummy handler on CPU_DEAD shutdown
timekeeping: Update tk->cycle_last in resume
posix-timers: Remove unused variable
clockevents: Switch into oneshot mode even if broadcast registered late
timer_list: Convert timer list to be a proper seq_file
timer_list: Split timer_list_show_tickdevices
posix-timers: Show sigevent info in proc file
posix-timers: Introduce /proc/PID/timers file
posix timers: Allocate timer id per process (v2)
timekeeping: Make sure to notify hrtimers when TAI offset changes
hrtimer: Fix ktime_add_ns() overflow on 32bit architectures
hrtimer: Add expiry time overflow check in hrtimer_interrupt
timekeeping: Shorten seq_count region
timekeeping: Implement a shadow timekeeper
timekeeping: Delay update of clock->cycle_last
timekeeping: Store cycle_last value in timekeeper struct as well
ntp: Remove ntp_lock, using the timekeeping locks to protect ntp state
timekeeping: Simplify tai updating from do_adjtimex
timekeeping: Hold timekeepering locks in do_adjtimex and hardpps
timekeeping: Move ADJ_SETOFFSET to top level do_adjtimex()
...
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This adds support for the Broadcom timer, used in the following SoCs:
BCM11130, BCM11140, BCM11351, BCM28145, BCM28155
Updates from V6:
- Split DT portion into a separate patch
Updates from V5:
- Rebase to latest arm-soc/for-next
Updates from V4:
- Switch code to use CLOCKSOURCE_OF_DECLARE
Updates from V3:
- Migrate to 3.9 timer framework updates
Updates from V2:
- prepend static fns + fields with kona_
Updates from V1:
- Rename bcm_timer.c to bcm_kona_timer.c
- Pull .h into bcm_kona_timer.c
- Make timers static
- Clean up comment block
- Switched to using clockevents_config_and_register
- Added an error to the get_timer loop if it repeats too much
- Added to Documentation/devicetree/bindings/arm/bcm/bcm,kona-timer.txt
- Added missing readl to timer_disable_and_clear
Note: bcm,kona-timer was kept as the 'compatible' field to make it
specific enough for when there are multiple bcm timers (bcm,timer is
too generic).
Signed-off-by: Christian Daudt <csd@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
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This commit implements the base CPU clocks for sunxi devices. It has
been tested using a slightly modified cpufreq driver from the
linux-sunxi 3.0 tree.
Additionally, document the new bindings introduced by this patch.
Idling:
/ # cat /sys/kernel/debug/clk/clk_summary
clock enable_cnt prepare_cnt rate
---------------------------------------------------------------------
osc32k 0 0 32768
osc24M_fixed 0 0 24000000
osc24M 0 0 24000000
apb1_mux 0 0 24000000
apb1 0 0 24000000
pll1 0 0 60000000
cpu 0 0 60000000
axi 0 0 60000000
ahb 0 0 60000000
apb0 0 0 30000000
dummy 0 0 0
After "yes >/dev/null &":
/ # cat /sys/kernel/debug/clk/clk_summary
clock enable_cnt prepare_cnt rate
---------------------------------------------------------------------
osc32k 0 0 32768
osc24M_fixed 0 0 24000000
osc24M 0 0 24000000
apb1_mux 0 0 24000000
apb1 0 0 24000000
pll1 0 0 1008000000
cpu 0 0 1008000000
axi 0 0 336000000
ahb 0 0 168000000
apb0 0 0 84000000
dummy 0 0 0
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag
Pull new ImgTec Meta architecture from James Hogan:
"This adds core architecture support for Imagination's Meta processor
cores, followed by some later miscellaneous arch/metag cleanups and
fixes which I kept separate to ease review:
- Support for basic Meta 1 (ATP) and Meta 2 (HTP) core architecture
- A few fixes all over, particularly for symbol prefixes
- A few privilege protection fixes
- Several cleanups (setup.c includes, split out a lot of
metag_ksyms.c)
- Fix some missing exports
- Convert hugetlb to use vm_unmapped_area()
- Copy device tree to non-init memory
- Provide dma_get_sgtable()"
* tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag: (61 commits)
metag: Provide dma_get_sgtable()
metag: prom.h: remove declaration of metag_dt_memblock_reserve()
metag: copy devicetree to non-init memory
metag: cleanup metag_ksyms.c includes
metag: move mm/init.c exports out of metag_ksyms.c
metag: move usercopy.c exports out of metag_ksyms.c
metag: move setup.c exports out of metag_ksyms.c
metag: move kick.c exports out of metag_ksyms.c
metag: move traps.c exports out of metag_ksyms.c
metag: move irq enable out of irqflags.h on SMP
genksyms: fix metag symbol prefix on crc symbols
metag: hugetlb: convert to vm_unmapped_area()
metag: export clear_page and copy_page
metag: export metag_code_cache_flush_all
metag: protect more non-MMU memory regions
metag: make TXPRIVEXT bits explicit
metag: kernel/setup.c: sort includes
perf: Enable building perf tools for Meta
metag: add boot time LNKGET/LNKSET check
metag: add __init to metag_cache_probe()
...
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Add time keeping code for metag. Meta hardware threads have 2 timers.
The background timer (TXTIMER) is used as a free-running time base, and
the interrupt timer (TXTIMERI) is used for the timer interrupt. Both
counters traditionally count at approximately 1MHz.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC mvebu platform changes from Olof Johansson:
"This series contains changes for the Marvell EBU platforms (mvebu,
orion, kirkwood, dove) that were not part of the first set of pull
requests because of dependencies on the MMC tree, and being submitted
a little late.
Notable changes are:
- More devices get moved out of board files into device tree
descriptions. The remaining devices listed in there have patches
that will get sent for 3.10, after which we can remove a lot of the
board files entirely. We are doing the pinctrl and mmc drivers
here, ethernet and PCI still remain.
- SMP support for mvebu is improved with support for the local
interrupt controller.
- The Guruplug board file gets replaced with a DT description.
Unfortunately, the dependency on the MMC tree turned out to be a much
larger problem than expected, when the MMC maintainer rebased the
patches in his tree that all of the patches in this branch are based
on, which caused merge conflicts between the new and old versions of
those patches.
To work around the merge conflicts, this branch rebases all patches on
top of the respective MMC patches that did get merged into 3.9. The
patches are all identical to the versions that were part of
linux-next, but have a new commit date."
* tag 'late-mvebu-rebased' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (90 commits)
arm: mvebu: enable the SD card slot on Armada 370 Reference Design board
ARM: kirkwood: topkick: init mvsdio via DT
ARM: kirkwood: nsa310: convert to pinctrl
ARM: Kirkwood: topkick: Enable i2c bus.
ARM: kirkwood: topkick: convert to pinctrl
ARM: dove: convert serial DT nodes to clocks property
arm: mvebu: Add SPI flash on Armada 370 DB board
arm: mvebu: Add SPI flash on Armada XP-DB board
arm: mvebu: Add SPI flash on Armada XP-GP board
arm: mvebu: Add support for SPI controller in Armada 370/XP
clocksource: update and move armada-370-xp-timer documentation to timer directory
arm: mvebu: update DT to support local timers
ARM: Dove: convert usb host controller to DT
arm: mvebu: Enable USB controllers on Armada 370/XP boards
arm: mvebu: Add support for USB host controllers in Armada 370/XP
arm: mvebu: add button for OpenBlocks AX3-4
ARM: Kirkwood: Convert NS2 to gpio-poweroff.
ARM: Kirkwood: Convert NSA310 I2C to device tree
ARM: Kirkwood: Convert NSA310 to use gpio-poweroff driver
ARM: Kirkwood: Convert NSA310 to DT based regulators.
...
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On the SOCs Armada 370 and Armada XP, each CPU comes with two private
timers. This patch use the timer 0 of each CPU as local timer for the
clockevent if CONFIG_LOCAL_TIMER is selected. In the other case, use
only the private Timer 0 of CPU 0.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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Basing the mvebu patches on top of the timer cleanup
avoids some nasty merges.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Ingo Molnar.
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource : Nomadik-mtu : fix missing irq initialization
posix-timer: Don't call idr_find() with out-of-range ID
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This patch fix the clock device irq field which is not initialized.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linaro-kernel@lists.linaro.org
Cc: patches@linaro.org
Cc: linus.walleij@stericsson.com
Cc: john.stultz@linaro.org
Link: http://lkml.kernel.org/r/1361547870-32638-1-git-send-email-daniel.lezcano@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Pull ARM virtualization changes:
"This contains parts of the ARM KVM support that have dependencies on
other patches merged through the arm-soc tree. In combination with
patches coming through Russell's tree, this will finally add full
support for the kernel based virtual machine on ARM, which has been
awaited for some time now.
Further, we now have a separate platform for virtual machines and qemu
booting that is used by both Xen and KVM, separating these from the
Versatile Express reference implementation. Obviously, this new
platform is multiplatform capable so it can be combined with existing
machines in the same kernel."
* tag 'virt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (38 commits)
ARM: arch_timer: include linux/errno.h
arm: arch_timer: add missing inline in stub function
ARM: KVM: arch_timers: Wire the init code and config option
ARM: KVM: arch_timers: Add timer world switch
ARM: KVM: arch_timers: Add guest timer core support
ARM: KVM: Add VGIC configuration option
ARM: KVM: VGIC initialisation code
ARM: KVM: VGIC control interface world switch
ARM: KVM: VGIC interrupt injection
ARM: KVM: vgic: retire queued, disabled interrupts
ARM: KVM: VGIC virtual CPU interface management
ARM: KVM: VGIC distributor handling
ARM: KVM: VGIC accept vcpu and dist base addresses from user space
ARM: KVM: Initial VGIC infrastructure code
ARM: KVM: Keep track of currently running vcpus
KVM: ARM: Introduce KVM_ARM_SET_DEVICE_ADDR ioctl
ARM: gic: add __ASSEMBLY__ guard to C definitions
ARM: gic: define GICH offsets for VGIC support
ARM: gic: add missing distributor defintions
ARM: mach-virt: fixup machine descriptor after removal of sys_timer
...
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If we're booted in HYP mode, it is possible that we'll run some
kind of virtualized environment. In this case, it is a better to
switch to the physical timers, and leave the virtual timers to
guests.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
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The arch_timer driver supports a superset of the functionality of the
arm_generic driver, and is not tied to a particular arch.
This patch moves arm64 to use the arch_timer driver, gaining additional
functionality in doing so, and removes the (now unused) arm_generic
driver. Timer-related hooks specific to arm64 are moved into
arch/arm64/kernel/time.c.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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The core functionality of the arch_timer driver is not directly tied to
anything under arch/arm, and can be split out.
This patch factors out the core of the arch_timer driver, so it can be
shared with other architectures. A couple of functions are added so
that architecture-specific code can interact with the driver without
needing to touch its internals.
The ARM_ARCH_TIMER config variable is moved out to
drivers/clocksource/Kconfig, existing uses in arch/arm are replaced with
HAVE_ARM_ARCH_TIMER, which selects it.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
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Pull ARM SoC driver specific changes from Arnd Bergmann:
- Updates to the ux500 cpufreq code
- Moving the u300 DMA controller driver to drivers/dma
- Moving versatile express drivers out of arch/arm for sharing with arch/arm64
- Device tree bindings for the OMAP General Purpose Memory Controller
* tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (27 commits)
ARM: OMAP2+: gpmc: Add device tree documentation for elm handle
ARM: OMAP2+: gpmc: add DT bindings for OneNAND
ARM: OMAP2+: gpmc-onenand: drop __init annotation
mtd: omap-onenand: pass device_node in platform data
ARM: OMAP2+: Prevent potential crash if GPMC probe fails
ARM: OMAP2+: gpmc: Remove unneeded of_node_put()
arm: Move sp810.h to include/linux/amba/
ARM: OMAP: gpmc: add DT bindings for GPMC timings and NAND
ARM: OMAP: gpmc: enable hwecc for AM33xx SoCs
ARM: OMAP: gpmc-nand: drop __init annotation
mtd: omap-nand: pass device_node in platform data
ARM: OMAP: gpmc: don't create devices from initcall on DT
dma: coh901318: cut down on platform data abstraction
dma: coh901318: merge header files
dma: coh901318: push definitions into driver
dma: coh901318: push header down into the DMA subsystem
dma: coh901318: skip hard-coded addresses
dma: coh901318: remove hardcoded target addresses
dma: coh901318: push platform data into driver
dma: coh901318: create a proper platform data file
...
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* depends/cleanup: (375 commits)
ARM: at91: fix board-rm9200-dt after sys_timer conversion
clocksource: use clockevents_config_and_register() where possible
ARM: use clockevents_config_and_register() where possible
clockevents: export clockevents_config_and_register for module use
timer: vt8500: Move timer code to drivers/clocksource
irqchip: Move ARM vic.h to include/linux/irqchip/arm-vic.h
ARM: picoxcell: use common irqchip_init function
ARM: spear: use common irqchip_init function
irqchip: Move ARM VIC to drivers/irqchip
ARM: samsung: remove unused tick.h
ARM: remove unneeded vic.h includes
ARM: remove mach .handle_irq for VIC users
ARM: VIC: set handle_arch_irq in VIC initialization
ARM: VIC: shrink down vic.h
irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.h
ARM: use common irqchip_init for GIC init
irqchip: Move ARM GIC to drivers/irqchip
ARM: remove mach .handle_irq for GIC users
ARM: GIC: set handle_arch_irq in GIC initialization
ARM: GIC: remove direct use of gic_raise_softirq
...
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This patch adds support to use Nomadik MTU for timer-based delay.
Acked-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Pull ARM SoC cleanups from Arnd Bergmann:
"A large number of cleanups, all over the platforms. This is dominated
largely by the Samsung platforms (s3c, s5p, exynos) and a few of the
others moving code out of arch/arm into more appropriate subsystems.
The clocksource and irqchip drivers are now abstracted to the point
where platforms that are already cleaned up do not need to even
specify the driver they use, it can all get configured from the device
tree as we do for normal device drivers. The clocksource changes
basically touch every single platform in the process.
We further clean up the use of platform specific header files here,
with the goal of turning more of the platforms over to being
"multiplatform" enabled, which implies that they cannot expose their
headers to architecture independent code any more.
It is expected that no functional changes are part of the cleanup.
The overall reduction in total code lines is mostly the result of
removing broken and obsolete code."
* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (133 commits)
ARM: mvebu: correct gated clock documentation
ARM: kirkwood: add missing include for nsa310
ARM: exynos: move exynos4210-combiner to drivers/irqchip
mfd: db8500-prcmu: update resource passing
drivers/db8500-cpufreq: delete dangling include
ARM: at91: remove NEOCORE 926 board
sunxi: Cleanup the reset code and add meaningful registers defines
ARM: S3C24XX: header mach/regs-mem.h local
ARM: S3C24XX: header mach/regs-power.h local
ARM: S3C24XX: header mach/regs-s3c2412-mem.h local
ARM: S3C24XX: Remove plat-s3c24xx directory in arch/arm/
ARM: S3C24XX: transform s3c2443 subirqs into new structure
ARM: S3C24XX: modify s3c2443 irq init to initialize all irqs
ARM: S3C24XX: move s3c2443 irq code to irq.c
ARM: S3C24XX: transform s3c2416 irqs into new structure
ARM: S3C24XX: modify s3c2416 irq init to initialize all irqs
ARM: S3C24XX: move s3c2416 irq init to common irq code
ARM: S3C24XX: Modify s3c_irq_wake to use the hwirq property
ARM: S3C24XX: Move irq syscore-ops to irq-pm
clocksource: always define CLOCKSOURCE_OF_DECLARE
...
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git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/cleanup
From Stephen Warren:
ARM: tegra: cleanup
This pull request contains various cleanup and minor changes to core
Tegra code:
* Tegra clocksource driver is moved to drivers/clocksource.
* Various typos, warning cleanup, statics cleanup, section mismatch
fixes, etc.
* Various small fixes/cleanups for CPU/hotplug/SMP code.
This pull request is based on a merge of v3.8-rc3 and at least part of
arm-soc's timer/cleanup branch.
* tag 'tegra-for-3.9-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
ARM: tegra: fix compile error when disable CPU_IDLE
ARM: tegra30: make the wait time of CPU power up to proportional to HZ
ARM: tegra: make device can run on UP
ARM: tegra: clean up the CPUINIT section
ARM: tegra: moving the clock gating procedure to tegra_cpu_kill
ARM: tegra: update the cache maintenance order for CPU shutdown
ARM: tegra30: fix power up sequence for boot_secondary
ARM: tegra: cpufreq: move clk_get/put out of function tegra_cpu_init/exit
ARM: tegra: fix Kconfig warnings when !SMP
ARM: tegra: Make variables static
clocksource: tegra: cosmetic: Fix error message
ARM: tegra: move timer.c to drivers/clocksource/
Signed-off-by: Olof Johansson <olof@lixom.net>
Trivial conflicts:
arch/arm/mach-tegra/board-dt-tegra20.c
arch/arm/mach-tegra/board-dt-tegra30.c
drivers/clocksource/Makefile
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Add missing \n.
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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Move arch/arm/mach-tegra/timer.c to drivers/clocksource/tegra20_timer.c
so that the code is co-located with other clocksource drivers, and to
reduce the size of the mach-tegra directory.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-rpi into next/cleanup
From Stephen Warren:
ARM: bcm2835: cleanup
This pull request simply converts the bcm2835 clocksource driver to use
the recently added CLKSRC_OF feature.
The branch is based on v3.8-rc3, followed by a merge of arm-soc's
timer/cleanup branch.
* tag 'bcm2835-for-3.9-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-rpi:
ARM: bcm2835: make use of CLKSRC_OF
Signed-off-by: Olof Johansson <olof@lixom.net>
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Using CLKSRC_OF enables deletion of the SoC-specific header
bcm2835_timer.h, replacing the custom function bcm2835_timer_init() with
the standardized automatic clocksource_of_init().
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
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* vt8500/timer:
timer: vt8500: Convert vt8500 to use CLKSRC_OF
Signed-off-by: Olof Johansson <olof@lixom.net>
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This patch converts arch-vt8500 to make use of CLKSRC_OF. Doing so
removes the need for include/linux/vt8500_timer.h as vt8500_timer_init
no longer needs to be visible outside vt8500_timer.c
Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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next/cleanup
From Tony Prisk:
Move arch-vt8500/timer.c to drivers/clocksource/vt8500-timer.c
* tag 'vt8500/timer' of git://server.prisktech.co.nz/git/linuxwmt:
timer: vt8500: Move timer code to drivers/clocksource
Signed-off-by: Olof Johansson <olof@lixom.net>
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This patch moves arch-vt8500/timer.c into drivers/clocksource and
updates the necessary Kconfig/Makefile options.
Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
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Clockevent cleanup series from Shawn Guo.
Resolved move/change conflict in mach-pxa/time.c due to the sys_timer
cleanup.
* clocksource/cleanup:
clocksource: use clockevents_config_and_register() where possible
ARM: use clockevents_config_and_register() where possible
clockevents: export clockevents_config_and_register for module use
+ sync to Linux 3.8-rc3
Signed-off-by: Olof Johansson <olof@lixom.net>
Conflicts:
arch/arm/mach-pxa/time.c
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The clockevent core is able to figure out the best mult and shift,
calculate min_delta_ns and max_delta_ns, with the necessary info passed
into clockevents_config_and_register(). Use this combined configure
and register function where possible to make the codes less error prone
and gain some positive diff stat.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Andres Salomon <dilinger@queued.net>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
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It is desirable to move all clocksource drivers to drivers/clocksource,
yet each requires its own initialization function. We'd rather not
pollute <linux/> with a header for each function. Instead, create a
single of_clksrc_init() function which will determine which clocksource
driver to initialize based on device tree.
Based on a similar patch for drivers/irqchip by Thomas Petazzoni.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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Now that the only field in struct sys_timer is .init, delete the struct,
and replace the machine descriptor .timer field with the initialization
function itself.
This will enable moving timer drivers into drivers/clocksource without
having to place a public prototype of each struct sys_timer object into
include/linux; the intent is to create a single of_clocksource_init()
function that determines which timer driver to initialize by scanning
the device dtree, much like the proposed irqchip_init() at:
http://www.spinics.net/lists/arm-kernel/msg203686.html
Includes mach-omap2 fixes from Igor Grinberg.
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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Move ux500's timer suspend/resume functions from struct sys_timer
ux500_timer into struct clock_event_device nmdk_clkevt. This
will allow the sys_timer suspend/resume fields to be removed, and
eventually lead to a complete removal of struct sys_timer.
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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