They cover essentially the same stuff and we can therefore fold it into the
tty_port one.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fortunately the serial layer was designed to use the same flag values but
with different names. It has its own SUSPENDED flag which is a free slot in
the ASYNC flags so we allocate it in the ASYNC flags instead.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We moved this into uart_state, now move the fields out of the separate
structure and kill it off.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
And indeed none of them use it. Clean this up as it will make moving to a
standard open method rather easier.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
X and other graphical interfaces need to be able to flip to a console
and lock it into graphics mode without races.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
In the past someone gratuitiously borrowed chunks of kernel internal vt
code and dumped them in kernel/power. They have all sorts of deep relations
with the vt code so put them in the vt tree instead
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is needed and requested in various forms for ConsoleKit, screenblank
handling and the like so do the job with a single interface. Also build the
interface so that unlike VT_WAITACTIVE and friends it won't miss events.
FIXME: Should this be a waitactive ioctl or a new device file you can poll
and read events from. We need the code anyway to fix up the existing broken
wait for console switch logic but the ConsoleKit people would prefer the
new device to the ioctl we have here
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Now we are extracting out methods for shutdown and the like we can add a
proper tty_port_close method that knows all the innards of the tty closing
process and hides the lot from the caller.
At some point in the future this will be paired with a similar open()
helper and the drivers can stick to hardware management.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There is currently no provision for passing IRQ trigger flags for
serial IRQs with triggering requirements (such as GPIO IRQs)
This patch adds irqflags to plat_serial8250_port that can be passed
from board file to reqest_irq() of 8250 driver
Changes are backward compatible with boards passing UPF_SHARE_IRQ flag
Tested on Zoom2 board that has IRQF_TRIGGER_RISING requirement for 8250 irq
[Moved new flag to end to fix bugs in the original with the old_serial array
-- Alan]
Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Currently kfifo cannot be used by parts of the kernel that use "const"
properly as kfifo itself does not use const for passed data blocks which
are indeed const.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add helpers for io operations, so that we can eliminate huge
amount of supporting code. It is now centralized in those
helpers and used values are precomputed in the init phase.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Don't fetch firmware address and recompute channel control on each
port access. Precompute the values on init and use them later all
the time.
The same for board control.
This simplify code and improves readability.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (64 commits)
ext4: Update documentation about quota mount options
ext4: replace MAX_DEFRAG_SIZE with EXT_MAX_BLOCK
ext4: Fix the alloc on close after a truncate hueristic
ext4: Add a tracepoint for ext4_alloc_da_blocks()
ext4: store EXT4_EXT_MIGRATE in i_state instead of i_flags
ext4: limit block allocations for indirect-block files to < 2^32
ext4: Fix different block exchange issue in EXT4_IOC_MOVE_EXT
ext4: Add null extent check to ext_get_path
ext4: Replace BUG_ON() with ext4_error() in move_extents.c
ext4: Replace get_ext_path macro with an inline funciton
ext4: Fix include/trace/events/ext4.h to work with Systemtap
ext4: Fix initalization of s_flex_groups
ext4: Always set dx_node's fake_dirent explicitly.
ext4: Fix async commit mode to be safe by using a barrier
ext4: Don't update superblock write time when filesystem is read-only
ext4: Clarify the locking details in mballoc
ext4: check for need init flag in ext4_mb_load_buddy
ext4: move ext4_mb_init_group() function earlier in the mballoc.c
ext4: Make non-journal fsync work properly
ext4: Assure that metadata blocks are written during fsync in no journal mode
...
Remove net/genetlink.h inclusion, now sched.c won't be recompiled
because of some networking changes.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
[WATCHDOG] sizeof cleanup
[WATCHDOG] wdt_pci: fix printk and variable type
[WATCHDOG] wdt_pci - use pci_request_region
[WATCHDOG] ar7_wdt: Fix error handling during probe.
[WATCHDOG] ar7_wdt: convert to become a platform driver
[WATCHDOG] fix book E watchdog to take WDIOC_SETTIMEOUT arg in seconds
[WATCHDOG] davinci: use clock framework for timer frequency
[WATCHDOG] Use DIV_ROUND_UP() macro in the coh901327 WDT
[WATCHDOG] Add support for WM831x watchdog
[WATCHDOG] Add watchdog driver for NUC900
[WATCHDOG] add SBC-FITPC2 watchdog driver
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (262 commits)
sh: mach-ecovec24: Add user debug switch support
sh: Kill off unused se_skipped in alignment trap notification code.
sh: Wire up HAVE_SYSCALL_TRACEPOINTS.
video: sh_mobile_lcdcfb: use both register sets for display panning
video: sh_mobile_lcdcfb: implement display panning
sh: Fix up sh7705 flush_dcache_page() build.
sh: kfr2r09: document the PLL/FLL <-> RF relationship.
sh: mach-ecovec24: need asm/clock.h.
sh: mach-ecovec24: deassert usb irq on boot.
sh: Add KEYSC support for EcoVec24
sh: add kycr2_delay for sh_keysc
sh: cpufreq: Include CPU id in info messages.
sh: multi-evt support for SH-X3 proto CPU.
sh: clkfwk: remove bogus set_bus_parent() from SH7709.
sh: Fix the indication point of the liquid crystal of AP-325RXA(AP3300)
sh: Add EcoVec24 romImage defconfig
sh: USB disable process is needed if romImage boot for EcoVec24
sh: EcoVec24: add HIZA setting for LED
sh: EcoVec24: write MAC address in boot
sh: Add romImage support for EcoVec24
...
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: add fusectl interface to max_background
fuse: limit user-specified values of max background requests
fuse: use drop_nlink() instead of direct nlink manipulation
fuse: document protocol version negotiation
fuse: make the number of max background requests and congestion threshold tunable
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
ext3: Flush disk caches on fsync when needed
ext3: Add locking to ext3_do_update_inode
ext3: Fix possible deadlock between ext3_truncate() and ext3_get_blocks()
jbd: Annotate transaction start also for journal_restart()
jbd: Journal block numbers can ever be only 32-bit use unsigned int for them
ext3: Update MAINTAINERS for ext3 and JBD
JBD: round commit timer up to avoid uncommitted transaction
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] Fix NULL ptr regression in powernow-k8
[CPUFREQ] Create a blacklist for processors that should not load the acpi-cpufreq module.
[CPUFREQ] Powernow-k8: Enable more than 2 low P-states
[CPUFREQ] remove rwsem lock from CPUFREQ_GOV_STOP call (second call site)
[CPUFREQ] ondemand - Use global sysfs dir for tuning settings
[CPUFREQ] Introduce global, not per core: /sys/devices/system/cpu/cpufreq
[CPUFREQ] Bail out of cpufreq_add_dev if the link for a managed CPU got created
[CPUFREQ] Factor out policy setting from cpufreq_add_dev
[CPUFREQ] Factor out interface creation from cpufreq_add_dev
[CPUFREQ] Factor out symlink creation from cpufreq_add_dev
[CPUFREQ] cleanup up -ENOMEM handling in cpufreq_add_dev
[CPUFREQ] Reduce scope of cpu_sys_dev in cpufreq_add_dev
[CPUFREQ] update Doc for cpuinfo_cur_freq and scaling_cur_freq
* 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (34 commits)
time: Prevent 32 bit overflow with set_normalized_timespec()
clocksource: Delay clocksource down rating to late boot
clocksource: clocksource_select must be called with mutex locked
clocksource: Resolve cpu hotplug dead lock with TSC unstable, fix crash
timers: Drop a function prototype
clocksource: Resolve cpu hotplug dead lock with TSC unstable
timer.c: Fix S/390 comments
timekeeping: Fix invalid getboottime() value
timekeeping: Fix up read_persistent_clock() breakage on sh
timekeeping: Increase granularity of read_persistent_clock(), build fix
time: Introduce CLOCK_REALTIME_COARSE
x86: Do not unregister PIT clocksource on PIT oneshot setup/shutdown
clocksource: Avoid clocksource watchdog circular locking dependency
clocksource: Protect the watchdog rating changes with clocksource_mutex
clocksource: Call clocksource_change_rating() outside of watchdog_lock
timekeeping: Introduce read_boot_clock
timekeeping: Increase granularity of read_persistent_clock()
timekeeping: Update clocksource with stop_machine
timekeeping: Add timekeeper read_clock helper functions
timekeeping: Move NTP adjusted clock multiplier to struct timekeeper
...
Fix trivial conflict due to MIPS lemote -> loongson renaming.
The WM831x series of devices provide a watchdog with configurable
behaviour on timer expiry.
Currently this driver support refreshes via a register or GPIO line and
autonomous refreshes from a hardware source (eg, a clock).
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (37 commits)
sched: Fix SD_POWERSAVING_BALANCE|SD_PREFER_LOCAL vs SD_WAKE_AFFINE
sched: Stop buddies from hogging the system
sched: Add new wakeup preemption mode: WAKEUP_RUNNING
sched: Fix TASK_WAKING & loadaverage breakage
sched: Disable wakeup balancing
sched: Rename flags to wake_flags
sched: Clean up the load_idx selection in select_task_rq_fair
sched: Optimize cgroup vs wakeup a bit
sched: x86: Name old_perf in a unique way
sched: Implement a gentler fair-sleepers feature
sched: Add SD_PREFER_LOCAL
sched: Add a few SYNC hint knobs to play with
sched: Fix sync wakeups again
sched: Add WF_FORK
sched: Rename sync arguments
sched: Rename select_task_rq() argument
sched: Feature to disable APERF/MPERF cpu_power
x86: sched: Provide arch implementations using aperf/mperf
x86: Add generic aperf/mperf code
x86: Move APERF/MPERF into a X86_FEATURE
...
Fix up trivial conflict in arch/x86/include/asm/processor.h due to
nearby addition of amd_get_nb_id() declaration from the EDAC merge.
* 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (44 commits)
vsnprintf: remove duplicate comment of vsnprintf
softirq: add BLOCK_IOPOLL to softirq_to_name
oprofile: fix oprofile regression: select RING_BUFFER_ALLOW_SWAP
tracing: switch function prints from %pf to %ps
vsprintf: add %ps that is the same as %pS but is like %pf
tracing: Fix minor bugs for __unregister_ftrace_function_probe
tracing: remove notrace from __kprobes annotation
tracing: optimize global_trace_clock cachelines
MAINTAINERS: Update tracing tree details
ftrace: document function and function graph implementation
tracing: make testing syscall events a separate configuration
tracing: remove some unused macros
ftrace: add compile-time check on F_printk()
tracing: fix F_printk() typos
tracing: have TRACE_EVENT macro use __flags to not shadow parameter
tracing: add static to generated TRACE_EVENT functions
ring-buffer: typecast cmpxchg to fix PowerPC warning
tracing: add filter event logic to special, mmiotrace and boot tracers
tracing: remove trace_event_types.h
tracing: use the new trace_entries.h to create format files
...
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: Add pata_atp867x driver for Artop/Acard ATP867X controllers
pata_amd: do not filter out valid modes in nv_mode_filter
sata_promise: update reset code
sata_promise: disable hotplug on 1st gen chips
libata: fix spurious WARN_ON_ONCE() on port freeze
ahci: restore pci_intx() handling
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (66 commits)
be2net: fix some cmds to use mccq instead of mbox
atl1e: fix 2.6.31-git4 -- ATL1E 0000:03:00.0: DMA-API: device driver frees DMA
pkt_sched: Fix qstats.qlen updating in dump_stats
ipv6: Log the affected address when DAD failure occurs
wl12xx: Fix print_mac() conversion.
af_iucv: fix race when queueing skbs on the backlog queue
af_iucv: do not call iucv_sock_kill() twice
af_iucv: handle non-accepted sockets after resuming from suspend
af_iucv: fix race in __iucv_sock_wait()
iucv: use correct output register in iucv_query_maxconn()
iucv: fix iucv_buffer_cpumask check when calling IUCV functions
iucv: suspend/resume error msg for left over pathes
wl12xx: switch to %pM to print the mac address
b44: the poll handler b44_poll must not enable IRQ unconditionally
ipv6: Ignore route option with ROUTER_PREF_INVALID
bonding: make ab_arp select active slaves as other modes
cfg80211: fix SME connect
rc80211_minstrel: fix contention window calculation
ssb/sdio: fix printk format warnings
p54usb: add Zcomax XG-705A usbid
...
This is a new pata driver for ARTOP 867X 64bit 4-channel UDMA133 ATA ctrls.
Based on the Atp867 data sheet rev 1.2, Acard, and in part on early ide codes
from Eric Uhrhane <ericu@google.com>.
Signed-off-by: John(Jung-Ik) Lee <jilee@google.com>
Reviewed-by: Grant Grundler <grundler@google.com>
Reviewed-by: Gwendal Gringo <gwendal@google.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Instead of hand rolling our own variant.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Create a new wakeup preemption mode, preempt towards tasks that run
shorter on avg. It sets next buddy to be sure we actually run the task
we preempted for.
Test results:
root@twins:~# while :; do :; done &
[1] 6537
root@twins:~# while :; do :; done &
[2] 6538
root@twins:~# while :; do :; done &
[3] 6539
root@twins:~# while :; do :; done &
[4] 6540
root@twins:/home/peter# ./latt -c4 sleep 4
Entries: 48 (clients=4)
Averages:
------------------------------
Max 4750 usec
Avg 497 usec
Stdev 737 usec
root@twins:/home/peter# echo WAKEUP_RUNNING > /debug/sched_features
root@twins:/home/peter# ./latt -c4 sleep 4
Entries: 48 (clients=4)
Averages:
------------------------------
Max 14 usec
Avg 5 usec
Stdev 3 usec
Disabled by default - needs more testing.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <new-submission>
This adds support for the regulators found in the AB3100
Mixed-Signal IC.
It further also defines platform data for the ST-Ericsson
U300 platform and extends the AB3100 MFD driver so that
platform/board data with regulation constraints and an init
function can be passed down all the way from the board to
the regulators.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The TWL4030/5030 family of multifunction devices allows board-specific
control of the the various regulators, clock and reset lines through
'scripts' that are loaded into its memory. This allows for Dynamic Power
Switching (DPS).
Implement board-independent core support for DPS that is then used by
board-specific code to load custom DPS scripts.
Signed-off-by: Amit Kucheria <amit.kucheria@verdurent.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This driver provides the core Freescale MC13783 support. It
registers the client platform_devices and provides access
to the A/D converter.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This adds the _interruptible suffix to the AB3100 accessor
functions on par with mutex_lock_interruptible() that's used
for blocking simultaneous calls to the AB3100 acessor functions.
Since these accesses are slow on a 100kHz I2C bus and may line
up waiting for the mutex, we need to handle interruption by
system shutdown or kill signals and may just as well denote that
in the function names.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The WM831x series of devices provide three types of LDO:
- General purpose LDOs supporting voltages from 0.9-3.3V
- High performance analogue LDOs supporting voltages from 1-3.5V
- Very low power consumption LDOs intended to support always on
functionality.
This patch adds support for all three kinds of LDO. Each regulator
is probed as an individual platform device with resources used to
provide the register map location of the regulator. Mixed hardware
and software control of regulators is not current supported.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The WM831x series of devices all have 3 DC-DC buck convertors. This
driver implements software control for these regulators via the
regulator API. Use with split hardware/software control of individual
regulators is not supported, though regulators not controlled by
software may be controlled via the hardware control interfaces.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This is useful for implementing get_status() in terms of get_mode().
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The WM831x series of PMICs support control of initial power on
through the ON pin on the device with soft control of the pin
at other times. Represent this to userspace as KEY_POWER.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Add support for the GPIO pins on the WM831x. No direct support is
currently supplied for configuring non-gpiolib functionality such
as pull configuration and alternate functions, soft configuration
of these will be provided in a future patch.
Currently use of these pins as interrupts is not supported due to
the ongoing issues with generic irq not support interrupt controllers
on interrupt driven buses. Users can directly request the interrupts
with the wm831x-specific APIs currently provided if required.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The current settings which can be used with the WM831x current sinks
can't easily be mapped between register values and currents at run
time without a lookup table since the values scale logarithmically
to match the way the human eye interprets brightness. This lookup
table is inclided in the core since several drivers need to use it.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The WM831x series of devices use OTP (One Time Programmable, a type
of PROM) to store system configuration. At run time this data is
visible via registers.
Currently the only explicitly supported feature is that the unique
ID provided by every WM831x device is exported to user space via
sysfs. Other configuration data may be read by system-specific
code in the pre_init() and post_init() platform data operations.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The WM831x backlight driver requires at least the specification of the
current sink to use and a maximum current to allow them to function and
will actively interfere with other users of the regulators it uses if
misconfigured so only register the subdevice for it if this platform
data has been supplied.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The WM831x contains an auxiliary ADC with a number of switchable
inputs which is used to monitor some of the voltages and
temperatures in the system and has some external inputs which can be
used for machine specific purposes. Provide an API allowing drivers
to read values from the ADC.
An internal reference voltage is provided to allow callibration of
the ADC. This is used to calibrate the device at startup.
The hardware also supports continuous readings and digital comparators.
These are not yet supported by the driver.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The WM831x includes an interrupt controller managing interrupts for
the various functions on the chip. This patch adds support for the
core interrupt block on the device.
Ideally this would be supported by genirq, particularly for the
GPIOs, but currently genirq is unable to cope with controllers on
interrupt driven buses so we cut'n'paste the generic interface.
Once genirq is able to cope chips like this it should be a case
of filing the prefixes off the code and redoing wm831x-irq.c to
move over.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Alan Cox