Add a new 'feature' to i2c-i801 to enable using PCI interrupts.
When the feature is enabled, then an isr is installed for the device's
PCI IRQ.
An I2C/SMBus transaction is always terminated by one of the following
interrupt sources: FAILED, BUS_ERR, DEV_ERR, or on success: INTR.
When the isr fires for one of these cases, it sets the ->status variable
and wakes up the waitq. The waitq then saves off the status code, and
clears ->status (in preparation for some future transaction).
The SMBus controller generates an INTR irq at the end of each
transaction where INTREN was set in the HST_CNT register.
No locking is needed around accesses to priv->status since all writes to
it are serialized: it is only ever set once in the isr at the end of a
transaction, and cleared while no interrupts can occur. In addition, the
I2C adapter lock guarantees that entire I2C transactions for a single
adapter are always serialized.
For this patch, the INTREN bit is set only for SMBus block, byte and word
transactions, but not for I2C reads or writes. The use of the DS
(BYTE_DONE) interrupt with byte-by-byte I2C transactions is implemented in
a subsequent patch.
The interrupt feature has only been enabled for COUGARPOINT hardware.
In addition, it is disabled if SMBus is using the SMI# interrupt.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Based on a previous patch from Peter Meerwald.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Peter Meerwald <p.meerwald@bct-electronic.com>
Some AMD chipsets, such as the SP5100, have an auxiliary SMBus
controller with a second set of registers. This patch adds
support for this auxiliary controller.
Tested on ASUS KCMA-D8 motherboard.
Signed-off-by: Andrew Armenia <andrew@asquaredlabs.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This adds support for three new SoC types:
* The mvebu platform includes Marvell's Armada XP and Armada 370 chips,
made by the mvebu business unit inside of Marvell. Since the same
group also made the older but similar platforms we call "orion5x",
"kirkwood", "mv78xx0" and "dove", we plan to move all of them into
the mach-mvebu directory in the future.
* socfpga is Altera's platform based on Cortex-A9 cores and a lot of
FPGA space. This is similar to the Xilinx zynq platform we already
support. The code is particularly clean, which is helped by the fact
that the hardware doesn't do much besides the parts that are
expected to get added in the FPGA.
* The OMAP subarchitecture gains support for the latest generation,
the OMAP5 based on the new Cortex-A15 core. Support is rather
rudimentary for now, but will be extended in the future.
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Merge tag 'newsoc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull support for three new arm SoC types from Arnd Bergmann:
- The mvebu platform includes Marvell's Armada XP and Armada 370 chips,
made by the mvebu business unit inside of Marvell. Since the same
group also made the older but similar platforms we call "orion5x",
"kirkwood", "mv78xx0" and "dove", we plan to move all of them into
the mach-mvebu directory in the future.
- socfpga is Altera's platform based on Cortex-A9 cores and a lot of
FPGA space. This is similar to the Xilinx zynq platform we already
support. The code is particularly clean, which is helped by the fact
that the hardware doesn't do much besides the parts that are expected
to get added in the FPGA.
- The OMAP subarchitecture gains support for the latest generation, the
OMAP5 based on the new Cortex-A15 core. Support is rather
rudimentary for now, but will be extended in the future.
* tag 'newsoc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (25 commits)
ARM: socfpga: initial support for Altera's SOCFPGA platform
arm: mvebu: generate DTBs for supported SoCs
ARM: mvebu: MPIC: read number of interrupts from control register
arm: mach-mvebu: add entry to MAINTAINERS
arm: mach-mvebu: add compilation/configuration change
arm: mach-mvebu: add defconfig
arm: mach-mvebu: add documentation for new device tree bindings
arm: mach-mvebu: add support for Armada 370 and Armada XP with DT
arm: mach-mvebu: add source files
arm: mach-mvebu: add header
clocksource: time-armada-370-xp: Marvell Armada 370/XP SoC timer driver
ARM: Kconfig update to support additional GPIOs in OMAP5
ARM: OMAP5: Add the build support
arm/dts: OMAP5: Add omap5 dts files
ARM: OMAP5: board-generic: Add device tree support
ARM: omap2+: board-generic: clean up the irq data from board file
ARM: OMAP5: Add SMP support
ARM: OMAP5: Add the WakeupGen IP updates
ARM: OMAP5: l3: Add l3 error handler support for omap5
ARM: OMAP5: gpmc: Update gpmc_init()
...
Conflicts:
Documentation/devicetree/bindings/arm/omap/omap.txt
arch/arm/mach-omap2/Makefile
drivers/clocksource/Kconfig
drivers/clocksource/Makefile
This contains two branches dealing with timers, one for the picoxcell
platform that is now using DT with the platform-independent
dw_apb_timer driver. The other change is for the omap-specific
dmtimer driver.
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Merge tag 'timer' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc timer updates from Arnd Bergmann:
"This contains two branches dealing with timers, one for the picoxcell
platform that is now using DT with the platform-independent
dw_apb_timer driver. The other change is for the omap-specific
dmtimer driver."
* tag 'timer' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
clocksource: dw_apb_timer: Add common DTS glue for dw_apb_timer
ARM: OMAP2+: Simplify dmtimer clock aliases
ARM: OMAP2+: Move dmtimer clock set function to dmtimer driver
ARM: OMAP1: Fix dmtimer support
ARM: OMAP: Add flag to indicate if a timer needs a manual reset
ARM: OMAP: Remove timer function pointer for context loss counter
ARM: OMAP: Remove loses_context variable from timer platform data
ARM: OMAP2+: Fix external clock support for dmtimers
ARM: OMAP2+: HWMOD: Correct timer device attributes
ARM: OMAP: Add DMTIMER capability variable to represent timer features
ARM: OMAP2+: Add dmtimer platform function to reserve systimers
ARM: OMAP2+: Remove unused max number of timers definition
ARM: OMAP: Remove unnecessary clk structure
This branch contains two kinds of updates: Some platforms in the process
of getting converted to device tree based booting, and the platform
specific patches necessary for that are included here. Other platforms
are already converted, so we just need to update the actual device
tree source files and the binding documents to add support for new board
and new drivers.
In the future we will probably separate those into two branches, and
in the long run, the plan is to move the device tree source files out
of the kernel repository, but that has to wait until we have completed
a much larger portion of the binding documents.
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Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc device tree description updates from Arnd Bergmann:
"This branch contains two kinds of updates: Some platforms in the
process of getting converted to device tree based booting, and the
platform specific patches necessary for that are included here.
Other platforms are already converted, so we just need to update the
actual device tree source files and the binding documents to add
support for new board and new drivers.
In the future we will probably separate those into two branches, and
in the long run, the plan is to move the device tree source files out
of the kernel repository, but that has to wait until we have completed
a much larger portion of the binding documents."
Fix up trivial conflicts in arch/arm/mach-imx/clk-imx6q.c due to newly
added clkdev registers next to a few removed unnecessary ones.
* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (119 commits)
ARM: LPC32xx: Add PWM to base dts file
ARM: EXYNOS: mark the DMA channel binding for SPI as preliminary
ARM: dts: Add nodes for spi controllers for SAMSUNG EXYNOS5 platforms
ARM: EXYNOS: Enable platform support for SPI controllers for EXYNOS5
ARM: EXYNOS: Add spi clock support for EXYNOS5
ARM: dts: Add nodes for spi controllers for SAMSUNG EXYNOS4 platforms
ARM: EXYNOS: Enable platform support for SPI controllers for EXYNOX4
ARM: EXYNOS: Fix the incorrect hierarchy of spi controller bus clock
ARM: ux500: Remove PMU platform registration when booting with DT
ARM: ux500: Remove temporary snowball_of_platform_devs enablement structure
ARM: ux500: Ensure vendor specific properties have the vendor's identifier
pinctrl: pinctrl-nomadik: Append sleepmode property with vendor specific prefixes
ARM: ux500: Move rtc-pl031 registration to Device Tree when enabled
ARM: ux500: Enable the AB8500 RTC for all DT:ed DB8500 based devices
ARM: ux500: Correctly reference IRQs supplied by the AB8500 from Device Tree
ARM: ux500: Apply ab8500-debug node do the db8500 DT structure
ARM: ux500: Add a ab8500-usb Device Tree node for db8500 based devices
ARM: ux500: Add db8500 Device Tree node for misc/ab8500-pwm
ARM: ux500: Add db8500 Device Tree node for ab8500-sysctrl
ARM: ux500: Enable LED heartbeat functionality on Snowbal via DT
...
These are all boring changes, moving stuff around or renaming things
mostly, and also getting rid of stuff that is duplicate or should
not be there to start with. Platform-wise this is all over the place,
mainly omap, samsung, at91, imx and tegra.
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull general arm-soc cleanups from Arnd Bergmann:
"These are all boring changes, moving stuff around or renaming things
mostly, and also getting rid of stuff that is duplicate or should not
be there to start with. Platform-wise this is all over the place,
mainly omap, samsung, at91, imx and tegra."
Resolve trivial conflict in arch/arm/mach-omap2/clockdomains3xxx_data.c
* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (67 commits)
ARM: clps711x: Remove the setting of the time
ARM: clps711x: Removed superfluous transform virt_to_bus and related functions
ARM: clps711x/p720t: Replace __initcall by .init_early call
ARM: S3C24XX: Remove unused GPIO definitions for Openmoko GTA02 board
ARM: S3C24XX: Remove unused GPIO definitions for port J
ARM: S3C24XX: Remove unused GPA, GPE, GPH bank GPIO aliases
ARM: S3C24XX: Convert the touchscreen setup code to common GPIO API
ARM: S3C24XX: Convert the PM code to gpiolib API
ARM: S3C24XX: Convert QT2410 board file to the gpiolib API
ARM: S3C24XX: Convert SMDK board file to the gpiolib API
ARM: S3C24XX: Free the backlight gpio requested in Mini2440 board code
ARM: imx: remove unused pdata from device macros
ARM: imx: Kconfig: Remove IMX_HAVE_PLATFORM_IMX_SSI from MACH_MX25_3DS
ARM: at91: fix new build errors
ARM: at91: add AIC5 support
ARM: at91: remove mach/irqs.h
ARM: at91: sparse irq support
ARM: at91: at91 based machines specify their own irq handler at run time
ARM: at91: remove static irq priorities for sam9x5
ARM: at91: add of irq priorities support
...
Pull the big VFS changes from Al Viro:
"This one is *big* and changes quite a few things around VFS. What's in there:
- the first of two really major architecture changes - death to open
intents.
The former is finally there; it was very long in making, but with
Miklos getting through really hard and messy final push in
fs/namei.c, we finally have it. Unlike his variant, this one
doesn't introduce struct opendata; what we have instead is
->atomic_open() taking preallocated struct file * and passing
everything via its fields.
Instead of returning struct file *, it returns -E... on error, 0
on success and 1 in "deal with it yourself" case (e.g. symlink
found on server, etc.).
See comments before fs/namei.c:atomic_open(). That made a lot of
goodies finally possible and quite a few are in that pile:
->lookup(), ->d_revalidate() and ->create() do not get struct
nameidata * anymore; ->lookup() and ->d_revalidate() get lookup
flags instead, ->create() gets "do we want it exclusive" flag.
With the introduction of new helper (kern_path_locked()) we are rid
of all struct nameidata instances outside of fs/namei.c; it's still
visible in namei.h, but not for long. Come the next cycle,
declaration will move either to fs/internal.h or to fs/namei.c
itself. [me, miklos, hch]
- The second major change: behaviour of final fput(). Now we have
__fput() done without any locks held by caller *and* not from deep
in call stack.
That obviously lifts a lot of constraints on the locking in there.
Moreover, it's legal now to call fput() from atomic contexts (which
has immediately simplified life for aio.c). We also don't need
anti-recursion logics in __scm_destroy() anymore.
There is a price, though - the damn thing has become partially
asynchronous. For fput() from normal process we are guaranteed
that pending __fput() will be done before the caller returns to
userland, exits or gets stopped for ptrace.
For kernel threads and atomic contexts it's done via
schedule_work(), so theoretically we might need a way to make sure
it's finished; so far only one such place had been found, but there
might be more.
There's flush_delayed_fput() (do all pending __fput()) and there's
__fput_sync() (fput() analog doing __fput() immediately). I hope
we won't need them often; see warnings in fs/file_table.c for
details. [me, based on task_work series from Oleg merged last
cycle]
- sync series from Jan
- large part of "death to sync_supers()" work from Artem; the only
bits missing here are exofs and ext4 ones. As far as I understand,
those are going via the exofs and ext4 trees resp.; once they are
in, we can put ->write_super() to the rest, along with the thread
calling it.
- preparatory bits from unionmount series (from dhowells).
- assorted cleanups and fixes all over the place, as usual.
This is not the last pile for this cycle; there's at least jlayton's
ESTALE work and fsfreeze series (the latter - in dire need of fixes,
so I'm not sure it'll make the cut this cycle). I'll probably throw
symlink/hardlink restrictions stuff from Kees into the next pile, too.
Plus there's a lot of misc patches I hadn't thrown into that one -
it's large enough as it is..."
* 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (127 commits)
ext4: switch EXT4_IOC_RESIZE_FS to mnt_want_write_file()
btrfs: switch btrfs_ioctl_balance() to mnt_want_write_file()
switch dentry_open() to struct path, make it grab references itself
spufs: shift dget/mntget towards dentry_open()
zoran: don't bother with struct file * in zoran_map
ecryptfs: don't reinvent the wheels, please - use struct completion
don't expose I_NEW inodes via dentry->d_inode
tidy up namei.c a bit
unobfuscate follow_up() a bit
ext3: pass custom EOF to generic_file_llseek_size()
ext4: use core vfs llseek code for dir seeks
vfs: allow custom EOF in generic_file_llseek code
vfs: Avoid unnecessary WB_SYNC_NONE writeback during sys_sync and reorder sync passes
vfs: Remove unnecessary flushing of block devices
vfs: Make sys_sync writeout also block device inodes
vfs: Create function for iterating over block devices
vfs: Reorder operations during sys_sync
quota: Move quota syncing to ->sync_fs method
quota: Split dquot_quota_sync() to writeback and cache flushing part
vfs: Move noop_backing_dev_info check from sync into writeback
...
Core:
- Rename cd-gpio to slot-gpio and extend it to support more
slot GPIO functions, such as write-protect.
- Add a function to get regulators (Vdd and Vccq) for a host.
Drivers:
- sdhci-pxav2, sdhci-pxav3: Add device tree support.
- sdhi: Add device tree support.
- sh_mmcif: Add support for regulators, device tree, slot-gpio.
- tmio: Add regulator support, use slot-gpio.
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Merge tag 'mmc-merge-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC updates from Chris Ball:
"MMC highlights for 3.6:
Core:
- Rename cd-gpio to slot-gpio and extend it to support more slot GPIO
functions, such as write-protect.
- Add a function to get regulators (Vdd and Vccq) for a host.
Drivers:
- sdhci-pxav2, sdhci-pxav3: Add device tree support.
- sdhi: Add device tree support.
- sh_mmcif: Add support for regulators, device tree, slot-gpio.
- tmio: Add regulator support, use slot-gpio."
* tag 'mmc-merge-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (62 commits)
mmc: sdhci-dove: Prepare for common clock framework
mmc: sdhci-dove: Add SDHCI_QUIRK_NO_HISPD_BIT
mmc: omap_hsmmc: ensure probe returns error upon resource failure
mmc: mxs-mmc: Add wp-inverted property
mmc: esdhc: Fix DMA_MASK to not break mx25 DMA access
mmc: core: reset signal voltage on power up
mmc: sd: Fix sd current limit setting
mmc: omap_hsmmc: add clk_prepare and clk_unprepare
mmc: sdhci: When a UHS switch fails, cycle power if regulator is used
mmc: atmel-mci: modify CLKDIV displaying in debugfs
mmc: atmel-mci: fix incorrect setting of host->data to NULL
mmc: sdhci: poll for card even when card is logically unremovable
mmc: sdhci: Introduce new flag SDHCI_USING_RETUNING_TIMER
mmc: sdio: Change pr_warning to pr_warn_ratelimited
mmc: core: Simplify and fix for SD switch processing
mmc: sdhci: restore host settings when card is removed
mmc: sdhci: fix incorrect command used in tuning
mmc: sdhci-pci: CaFe has broken card detection
mmc: sdhci: Report failure reasons for all cases in sdhci_add_host()
mmc: s3cmci: Convert s3cmci driver to gpiolib API
...
* ACPI conversion to PM handling based on struct dev_pm_ops.
* Conversion of a number of platform drivers to PM handling based on struct
dev_pm_ops and removal of empty legacy PM callbacks from a couple of PCI
drivers.
* Suspend-to-both for in-kernel hibernation from Bojan Smojver.
* cpuidle fixes and cleanups from ShuoX Liu, Daniel Lezcano and Preeti U Murthy.
* cpufreq bug fixes from Jonghwa Lee and Stephen Boyd.
* Suspend and hibernate fixes from Srivatsa S. Bhat and Colin Cross.
* Generic PM domains framework updates.
* RTC CMOS wakeup signaling update from Paul Fox.
* sparse warnings fixes from Sachin Kamat.
* Build warnings fixes for the generic PM domains framework and PM sysfs code.
* sysfs switch for printing device suspend times from Sameer Nanda.
* Documentation fix from Oskar Schirmer.
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Merge tag 'pm-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
- ACPI conversion to PM handling based on struct dev_pm_ops.
- Conversion of a number of platform drivers to PM handling based on
struct dev_pm_ops and removal of empty legacy PM callbacks from a
couple of PCI drivers.
- Suspend-to-both for in-kernel hibernation from Bojan Smojver.
- cpuidle fixes and cleanups from ShuoX Liu, Daniel Lezcano and Preeti
Murthy.
- cpufreq bug fixes from Jonghwa Lee and Stephen Boyd.
- Suspend and hibernate fixes from Srivatsa Bhat and Colin Cross.
- Generic PM domains framework updates.
- RTC CMOS wakeup signaling update from Paul Fox.
- sparse warnings fixes from Sachin Kamat.
- Build warnings fixes for the generic PM domains framework and PM
sysfs code.
- sysfs switch for printing device suspend times from Sameer Nanda.
- Documentation fix from Oskar Schirmer.
* tag 'pm-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (70 commits)
cpufreq: Fix sysfs deadlock with concurrent hotplug/frequency switch
EXYNOS: bugfix on retrieving old_index from freqs.old
PM / Sleep: call early resume handlers when suspend_noirq fails
PM / QoS: Use NULL pointer instead of plain integer in qos.c
PM / QoS: Use NULL pointer instead of plain integer in pm_qos.h
PM / Sleep: Require CAP_BLOCK_SUSPEND to use wake_lock/wake_unlock
PM / Sleep: Add missing static storage class specifiers in main.c
cpuilde / ACPI: remove time from acpi_processor_cx structure
cpuidle / ACPI: remove usage from acpi_processor_cx structure
cpuidle / ACPI : remove latency_ticks from acpi_processor_cx structure
rtc-cmos: report wakeups from interrupt handler
PM / Sleep: Fix build warning in sysfs.c for CONFIG_PM_SLEEP unset
PM / Domains: Fix build warning for CONFIG_PM_RUNTIME unset
olpc-xo15-sci: Use struct dev_pm_ops for power management
PM / Domains: Replace plain integer with NULL pointer in domain.c file
PM / Domains: Add missing static storage class specifier in domain.c file
PM / crypto / ux500: Use struct dev_pm_ops for power management
PM / IPMI: Remove empty legacy PCI PM callbacks
tpm_nsc: Use struct dev_pm_ops for power management
tpm_tis: Use struct dev_pm_ops for power management
...
Lots and lots of fixes from Axel and some others here, plus some framework
enhancements which continue the theme of factoring code out of the drivers
and into the core.
- Initial framework support for GPIO controlled enable signals, saving a
bunch of code in drivers.
- Move fixed regulator enable time and voltage mapping table
specifications to data.
- Used some of the recent framework enhancements to make voltage change
notifications more useful, passing the voltage in as an argument to the
notification.
- Fixed the pattern used for finding individual regulators on a device
to not rely on the node name, supporting the use of multiple PMICs of
the same type in the system.
- New drivers for Maxim MAX77686, TI LP872x and LP8788, Samsung S2MPS11,
and Wolfson Arizona microphone supplies and LDOs.
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Merge tag 'regulator-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"Lots and lots of fixes from Axel and some others here, plus some
framework enhancements which continue the theme of factoring code out
of the drivers and into the core.
- Initial framework support for GPIO controlled enable signals,
saving a bunch of code in drivers.
- Move fixed regulator enable time and voltage mapping table
specifications to data.
- Used some of the recent framework enhancements to make voltage
change notifications more useful, passing the voltage in as an
argument to the notification.
- Fixed the pattern used for finding individual regulators on a
device to not rely on the node name, supporting the use of multiple
PMICs of the same type in the system.
- New drivers for Maxim MAX77686, TI LP872x and LP8788, Samsung
S2MPS11, and Wolfson Arizona microphone supplies and LDOs."
* tag 'regulator-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (176 commits)
regulator: add new lp8788 regulator driver
regulator: mc13xxx: Remove extern function declaration for mc13xxx_sw_regulator
regulator: tps65910: set input_supply on desc unconditionally
regulator: palmas: Fix calcuating selector in palmas_map_voltage_smps
regulator: lp872x: Simplify implementation of lp872x_find_regulator_init_data()
regulator: twl: Fix list_voltate for twl6030ldo_ops
regulator: twl: Convert twl6030ldo_ops to [get|set]_voltage_sel
regulator: twl: Fix the formula to calculate vsel and voltage for twl6030ldo
regulator: s5m8767: Properly handle gpio_request failure
regulator: max8997: Properly handle gpio_request failure
regulator: tps62360: use devm_* for gpio request
regulator: tps6586x: add support for input supply
regulator: tps65217: Add device tree support
regulator: aat2870: Remove unused min_uV and max_uV from struct aat2870_regulator
regulator: aat2870: Convert to regulator_list_voltage_table
regulator: da9052: initialize of_node param for regulator register
regulator: Add REGULATOR_STATUS_UNDEFINED.
regulator: Fix a typo in regulator_mode_to_status() core function.
regulator: s2mps11: Use sec_reg_write rather than sec_reg_update when mask is 0xff
regulator: s2mps11: Fix wrong setting for config.dev
...
Pull RCU changes from Ingo Molnar:
"Quoting from Paul, the major features of this series are:
1. Preventing latency spikes of more than 200 microseconds for
kernels built with NR_CPUS=4096, which is reportedly becoming the
default for some distros. This is a first step, as it does not
help with systems that actually -have- 4096 CPUs (work on this case
is in progress, but is not yet ready for mainline).
This category also includes improving concurrency of rcu_barrier(),
placed here due to conflicts. Posted to LKML at:
https://lkml.org/lkml/2012/6/22/381
Note that patches 18-22 of that series have been defered to 3.7, as
they have not yet proven themselves to be mainline-ready (and yes,
these are the ones intended to get rid of RCU's latency spikes for
systems that actually have 4096 CPUs).
2. Updates to documentation and rcutorture fixes, the latter category
including improvements to rcu_barrier() testing. Posted to LKML at
http://lkml.indiana.edu/hypermail/linux/kernel/1206.1/04094.html.
3. Miscellaneous fixes posted to LKML at:
https://lkml.org/lkml/2012/6/22/500
with the exception of the last commit, which was posted here:
http://www.gossamer-threads.com/lists/linux/kernel/1561830
4. RCU_FAST_NO_HZ fixes and improvements. Posted to LKML at:
http://lkml.indiana.edu/hypermail/linux/kernel/1206.1/00006.htmlhttp://www.gossamer-threads.com/lists/linux/kernel/1561833
The first four patches of the first series went into 3.5 to fix a
regression.
5. Code-style fixes. These were posted to LKML at
http://lkml.indiana.edu/hypermail/linux/kernel/1205.2/01180.htmlhttp://lkml.indiana.edu/hypermail/linux/kernel/1205.2/01181.html"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (48 commits)
rcu: Fix broken strings in RCU's source code.
rcu: Fix code-style issues involving "else"
rcu: Introduce check for callback list/count mismatch
rcu: Make RCU_FAST_NO_HZ respect nohz= boot parameter
rcu: Fix qlen_lazy breakage
rcu: Round FAST_NO_HZ lazy timeout to nearest second
rcu: The rcu_needs_cpu() function is not a quiescent state
rcu: Dump only the current CPU's buffers for idle-entry/exit warnings
rcu: Add check for CPUs going offline with callbacks queued
rcu: Disable preemption in rcu_blocking_is_gp()
rcu: Prevent uninitialized string in RCU CPU stall info
rcu: Fix rcu_is_cpu_idle() #ifdef in TINY_RCU
rcu: Split RCU core processing out of __call_rcu()
rcu: Prevent __call_rcu() from invoking RCU core on offline CPUs
rcu: Make __call_rcu() handle invocation from idle
rcu: Remove function versions of __kfree_rcu and __is_kfree_rcu_offset
rcu: Consolidate tree/tiny __rcu_read_{,un}lock() implementations
rcu: Remove return value from rcu_assign_pointer()
key: Remove extraneous parentheses from rcu_assign_keypointer()
rcu: Remove return value from RCU_INIT_POINTER()
...
The referenced html file does not exist anymore. Replace the URL with
the current project homepage.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
From Lee Jones <lee.jones@linaro.org>:
* 'for-arm-soc-next' of git://git.linaro.org/people/ljones/linux-3.0-ux500:
ARM: ux500: Remove PMU platform registration when booting with DT
ARM: ux500: Remove temporary snowball_of_platform_devs enablement structure
ARM: ux500: Ensure vendor specific properties have the vendor's identifier
pinctrl: pinctrl-nomadik: Append sleepmode property with vendor specific prefixes
ARM: ux500: Move rtc-pl031 registration to Device Tree when enabled
ARM: ux500: Enable the AB8500 RTC for all DT:ed DB8500 based devices
ARM: ux500: Correctly reference IRQs supplied by the AB8500 from Device Tree
ARM: ux500: Apply ab8500-debug node do the db8500 DT structure
ARM: ux500: Add a ab8500-usb Device Tree node for db8500 based devices
ARM: ux500: Add db8500 Device Tree node for misc/ab8500-pwm
ARM: ux500: Add db8500 Device Tree node for ab8500-sysctrl
ARM: ux500: Enable LED heartbeat functionality on Snowbal via DT
ARM: ux500: Enable LED heartbeat functionality on Snowball
ARM: ux500: Add support for input/ponkey into the db8500's Device Tree
ARM: ux500: Add a ab8500-gpadc node to the db8500 Device Tree
ARM: ux500: Enable the user LED on Snowball via Device Tree
ARM: ux500: Kconfig: Compile in leds-gpio support for Snowball
ARM: ux500: Provide auxdata to be used as name base clock search for nmk-i2c
ARM: ux500: Remove unused i2c platform_data initialisation code
ARM: ux500: Enable Device Tree support mmci for Snowball
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Bindings for DMA channels are still under discussion and will
change once this has been resolved. Therefore we mark them
the newly added ones as preliminary. Let's hope nobody starts
relying on them...
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
From Kukjin Kim <kgene.kim@samsung.com>:
It is for supporting spi dt for exynos4210 and exynos5250, and got the
ack from Grant Likely for spi driver.
Note: Since this is including spi driver changes, so it was made based
on next/devel-dma-ops which touches same file, Samsung spi driver for
avoiding bad conflicts.
* 'next/dt-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: dts: Add nodes for spi controllers for SAMSUNG EXYNOS5 platforms
ARM: EXYNOS: Enable platform support for SPI controllers for EXYNOS5
ARM: EXYNOS: Add spi clock support for EXYNOS5
ARM: dts: Add nodes for spi controllers for SAMSUNG EXYNOS4 platforms
ARM: EXYNOS: Enable platform support for SPI controllers for EXYNOX4
ARM: EXYNOS: Fix the incorrect hierarchy of spi controller bus clock
ARM: EXYNOS: Add device tree node for EXYNOS4 interrupt combiner controller
spi: s3c64xx: add device tree support
spi: s3c64xx: Remove the 'set_level' callback from controller data
ARM: SAMSUNG: Modify s3c64xx_spi{0|1|2}_set_platdata function
ARM: SAMSUNG: Remove pdev pointer parameter from spi gpio setup functions
spi: s3c64xx: move controller information into driver data
spi: s3c64xx: remove unused S3C64XX_SPI_ST_TRLCNTZ macro
ARM: S3C64XX: Add a new dma request id for device tree based dma channel lookup
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Patches from Alexander Shiyan <shc_work@mail.ru>:
* clps711x/cleanup:
ARM: clps711x: Remove the setting of the time
ARM: clps711x: Removed superfluous transform virt_to_bus and related functions
ARM: clps711x/p720t: Replace __initcall by .init_early call
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Set the supply_name in the regulator descriptor unconditionally
and make this parameter as required parameter in the device
node for successfully registration of the regulator.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
- Two fixes to the i.MX driver
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Merge tag 'fixes-for-v3.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull late pinctrl fixes from Linus Walleij:
- Two fixes to the i.MX driver
* tag 'fixes-for-v3.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: pinctrl-imx6q: add missed mux function for USBOTG_ID
pinctrl: pinctrl-imx: only print debug message when DEBUG is defined
The original pin registers table is derived from u-boot mainline,
but somehow it was found missing some mux functions for USBOTG_ID.
We added it at the bottom by following the exist pin function ids,
then it will not break the exist using of pin function id in dts file.
Reported-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
boolean "does it have to be exclusive?" flag is passed instead;
Local filesystem should just ignore it - the object is guaranteed
not to be there yet.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Just the flags; only NFS cares even about that, but there are
legitimate uses for such argument. And getting rid of that
completely would require splitting ->lookup() into a couple
of methods (at least), so let's leave that alone for now...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Just pass struct file *. Methods are happier that way...
There's no need to return struct file * from finish_open() now,
so let it return int. Next: saner prototypes for parts in
namei.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Change of calling conventions:
old new
NULL 1
file 0
ERR_PTR(-ve) -ve
Caller *knows* that struct file *; no need to return it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
... and let finish_open() report having opened the file via that sucker.
Next step: don't modify od->filp at all.
[AV: FILE_CREATE was already used by cifs; Miklos' fix folded]
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Add a new inode operation which is called on the last component of an open.
Using this the filesystem can look up, possibly create and open the file in one
atomic operation. If it cannot perform this (e.g. the file type turned out to
be wrong) it may signal this by returning NULL instead of an open struct file
pointer.
i_op->atomic_open() is only called if the last component is negative or needs
lookup. Handling cached positive dentries here doesn't add much value: these
can be opened using f_op->open(). If the cached file turns out to be invalid,
the open can be retried, this time using ->atomic_open() with a fresh dentry.
For now leave the old way of using open intents in lookup and revalidate in
place. This will be removed once all the users are converted.
David Howells noticed that if ->atomic_open() opens the file but does not create
it, handle_truncate() will be called on it even if it is not a regular file.
Fix this by checking the file type in this case too.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
we used to need to clean it in RCU callback freeing an inode;
in 3.2 that requirement went away. Unfortunately, it hadn't
been reflected in Documentation/filesystems/porting.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pull media fixes from Mauro Carvalho Chehab:
- Some regression fixes at the audio part for devices with
cx23885/cx25840
- A DMA corruption fix at cx231xx
- two fixes at the winbond IR driver
- Several fixes for the EXYNOS media driver (s5p)
- two fixes at the OMAP3 preview driver
- one fix at the dvb core failure path
- an include missing (slab.h) at smiapp-core causing compilation
breakage
- em28xx was not loading the IR driver driver anymore.
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (31 commits)
[media] Revert "[media] V4L: JPEG class documentation corrections"
[media] s5p-fimc: Add missing FIMC-LITE file operations locking
[media] omap3isp: preview: Fix contrast and brightness handling
[media] omap3isp: preview: Fix output size computation depending on input format
[media] winbond-cir: Initialise timeout, driver_type and allowed_protos
[media] winbond-cir: Fix txandrx module info
[media] cx23885: Silence unknown command warnings
[media] cx23885: add support for HVR-1255 analog (cx23888 variant)
[media] cx23885: make analog support work for HVR_1250 (cx23885 variant)
[media] cx25840: fix vsrc/hsrc usage on cx23888 designs
[media] cx25840: fix regression in HVR-1800 analog audio
[media] cx25840: fix regression in analog support hue/saturation controls
[media] cx25840: fix regression in HVR-1800 analog support
[media] s5p-mfc: Fixed setup of custom controls in decoder and encoder
[media] cx231xx: don't DMA to random addresses
[media] em28xx: fix em28xx-rc load
[media] dvb-core: Release semaphore on error path dvb_register_device()
[media] s5p-fimc: Stop media entity pipeline if fimc_pipeline_validate fails
[media] s5p-fimc: Fix compiler warning in fimc-lite.c
[media] s5p-fimc: media_entity_pipeline_start() may fail
...
- fix 'sparse warning fix' regression which totally breaks MXC NAND
- fix GPMI NAND regression when used with UBI
- update/correct sysfs documentation for new 'bitflip_threshold' field
- fix nandsim build failure
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Merge tag 'for-linus-20120712' of git://git.infradead.org/linux-mtd
Pull late MTD fixes from David Woodhouse:
- fix 'sparse warning fix' regression which totally breaks MXC NAND
- fix GPMI NAND regression when used with UBI
- update/correct sysfs documentation for new 'bitflip_threshold' field
- fix nandsim build failure
* tag 'for-linus-20120712' of git://git.infradead.org/linux-mtd:
mtd: nandsim: don't open code a do_div helper
mtd: ABI documentation: clarification of bitflip_threshold
mtd: gpmi-nand: fix read page when reading to vmalloced area
mtd: mxc_nand: use 32bit copy functions
Add DT support for DaVinci cp_intc interrupt controller
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Merge tag 'davinci-v3.6-dt' of git://gitorious.org/linux-davinci/linux-davinci into next/dt
From Sekhar Nori <nsekhar@ti.com>:
DaVinci DT support
Add DT support for DaVinci cp_intc interrupt controller
* tag 'davinci-v3.6-dt' of git://gitorious.org/linux-davinci/linux-davinci:
ARM: davinci: cp_intc: Add OF support for TI interrupt controller
ARM: davinci: add runtime PM support for clock management
ARM: davinci: cp_intc: Add irq domain support
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
There is multiple voltage input pins on device which
takes the voltage input for different voltage regulator.
Support to configure the voltage input supplied by
different regulator for each regulators.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Any non-standard property should contain the vendor's identifier which
should be perpended onto the property name followed by a comma. This
aids in name-space collision prevention. This patch ensures the
sleepmode property adheres to the rules.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add support for device based discovery.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Jaswinder Singh <jaswinder.singh@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit adds device tree support for tps65217 pmic. And usage
details are added to device tree documentation. Driver is tested
by using kernel module with regulator set and get APIs.
Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
From Shawn Guo <shawn.guo@linaro.org>:
Here is the second (last) batch of imx device tree changes for 3.6.
* 'imx/dt-for-3.6' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: imx6q: ensure ANATOP controller is available
ARM: dts: imx6q-sabrelite: add ecspi1 pinctrl support
ARM: dts: imx6q-sabrelite: add usb devices
ARM: imx6q: disable usb charger detector
ARM: imx6q: add usbphy clocks
ARM: imx6q: add usb controller clock lookups
ARM: dts: imx: update #interrupt-cells for gpio nodes
bindings: update imx and mxs #gpio-cells
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
From Tony Lindgren <tony@atomide.com>:
Device tree related patches for omaps
* tag 'omap-devel-dt-for-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
arm/dts: New dts file for PandaBoardES (4460)
arm/dts: omap4-panda: Audio support for PandaBoard 4430
arm/dts: omap4-sdp: Enable audio support via device tree
arm/dts: omap4-sdp: Add support for twl6040
arm/dts: omap4-sdp: Add fixed regulator to represent VBAT
arm/dts: omap4: Add entry for OMAP DMIC IP
arm/dts: omap4: Add entry for OMAP McPDM IP
arm/dts: am33xx wdt node
arm/dts: remove MMC/SD and SPI related entries from am33xx.dtsi
watchdog: omap_wdt: add device tree support
ARM: OMAP: avoid build wdt platform device if with dt support
arm/dts: add wdt node for omap3 and omap4
arm/dts: OMAP4: Add Variscite OMAP4 System-On-Modeule support
arm/dts: Add support for AM335x BeagleBone
arm/dts: Add support for AM335x EVM
arm/dts: Add initial DT support for AM33XX SoC family
arm/dts: omap3-evm: Add i2c and twl4030 support
arm/dts: Add support for TI AM3517/05 EVM board
arm/dts: OMAP2: Add support for OMAP2420H4 Board
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Make a common device tree glue for clocksource/dw_apb_timer.
Move mach-picoxcell/time.c to be a generic device tree application
of the dw_apb_timer.
Configure mach-picoxcell to use the dw_apb_timer_of device tree
implementation in drivers/clocksource.
Signed-off-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Even though these aren't parsed by the MMC driver, make clear that
they're required by the OF core. (Also, a few typo fixes.)
Signed-off-by: Chris Ball <cjb@laptop.org>
Now that we have common bindings for MMC, rewrite the individual
bindings to inherit from mmc.txt and describe their differences.
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
From Tony Lindgren <tony@atomide.com>:
This branch contains minimal support for omap5 to boot to a
console without clock framework support. This branch depends
on omap-cleanup-part2-for-v3.6.
* 'devel-omap5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: Kconfig update to support additional GPIOs in OMAP5
ARM: OMAP5: Add the build support
arm/dts: OMAP5: Add omap5 dts files
ARM: OMAP5: board-generic: Add device tree support
ARM: omap2+: board-generic: clean up the irq data from board file
ARM: OMAP5: Add SMP support
ARM: OMAP5: Add the WakeupGen IP updates
ARM: OMAP5: l3: Add l3 error handler support for omap5
ARM: OMAP5: gpmc: Update gpmc_init()
ARM: OMAP5: timer: Add clocksource, clockevent support
ARM: OMAP5: Add minimal support for OMAP5430 SOC
ARM: OMAP5: id: Add cpu id for ES versions
ARM: OMAP: counter-32k: Select the CR register offset using the IP scheme
ARM: OMAP2+: Move stubbed secure_sram_reserve function to a common.c and call it __weak
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Adding the minimal support for OMAP5 evm board
with device tree.
Reviewed-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: R Sricharan <r.sricharan@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
