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2009-12-16rtc-tx4939: fix races around device registrationAtsushi Nemoto1-25/+26
* Use its own spinlock instead of rtc->irq_lock * Check pdata->rtc before calling rtc_update_irq * Disable interrupt after rtc_device_unregister Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16rtc-ds1511: fix races around device registrationAtsushi Nemoto1-88/+60
- Call dev_set_drvdata before rtc device creation. - Use its own spinlock instead of rtc->irq_lock. Because pdata->rtc must be initialized to use the irq_lock (pdata->rtc->irq_lock). There is a small window which rtc methods can be called before pdata->rtc is initialized. And there is no need use the irq_lock to protect hardware registers. The driver's own spinlock shoule be enough. - Check pdata->rtc before calling rtc_update_irq. - Use {alarm,update}_irq_enable and remove ioctl routine. - Use devres APIs and simplify error/remove path. These fixes are ported from ds1553 driver and just compile-tested only. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Andrew Sharp <andy.sharp@lsi.com> Cc: Thomas Hommel <thomas.hommel@gefanuc.com> Cc: David Brownell <david-b@pacbell.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16rtc-cmos: convert RTC_AIE/RTC_UIE to rtc irq APIHerton Ronaldo Krzesinski1-40/+35
Drop ioctl function that handles RTC_AIE/RTC_UIE, and use instead the rtc subsystem API (alarm_irq_enable/update_irq_enable callbacks). Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16rtc: fix driver data issues in several rtc driversAlessandro Zummo10-42/+42
Herton Ronaldo Krzesinski recently raised up, and fixed, an issue with the rtc_cmos driver, which was referring to an inconsistent driver data. This patch ensures that driver data registration happens before rtc_device_register(). Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Acked-by: Thomas Hommel <thomas.hommel@gefanuc.com> Acked-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Cc: David S. Miller <davem@davemloft.net> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Andrew Sharp <andy.sharp@onstor.com> Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Alexander Bigga <ab@mycable.de> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Mark Zhan <rongkai.zhan@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16rtc: disable hpet emulation on suspendMaxim Levitsky1-1/+2
I noticed that rtc wont generate interrupts after a resume from disk. Here hpet rtc emulation is used. Problem is that rtc hpet comparator, isn't reinitialized after resume. Easiest way to solve this, is always mask all hpet interrupts on suspend This is triggered, when suspending with alarm set. Otherwise, hpet driver will think it doesn't need to reinitialize the rtc comparator, thus rtc interrupts won't work. This emulation isn't need for wakealarm. Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com> Cc: David Brownell <david-b@pacbell.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16autofs4: always use lookup for lookupIan Kent4-158/+330
We need to be able to cope with the directory mutex being held during ->d_revalidate() in some cases, but not all cases, and not necessarily by us. Because we need to release the mutex when we call back to the daemon to do perform a mount we must be sure that it is us who holds the mutex so we must redirect mount requests to ->lookup() if the mutex is held. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16autofs4: rename dentry to expiring in autofs4_lookup_expiring()Ian Kent1-12/+12
In autofs4_lookup_expiring() a declaration within the list traversal loop uses a declaration that has the same name as the function parameter. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16autofs4: rename dentry to active in autofs4_lookup_active()Ian Kent1-12/+12
In autofs4_lookup_active() a declaration within the list traversal loop uses a declaration that has the same name as the function parameter. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16autofs4: eliminate d_unhashed in path walk checksIan Kent1-4/+3
We unhash the dentry (in a subsequent patch) in ->d_revalidate() in order to send mount requests to ->lookup(). But then we can not rely on d_unhased() to give reliable results because it may be called at any time by any code path. The d_unhashed() function is used by __simple_empty() in the path walking callbacks but autofs mount point dentrys should have no directories at all so a list_empty() on d_subdirs should be (and is) sufficient. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16autofs4: cleanup active and expire lookupIan Kent1-6/+10
The lookup functions for active and expiring dentrys use parameters that can be easily obtained on entry so we change the call to to take just the dentry. This makes the subsequent change, to send all lookups to ->lookup(), a bit cleaner. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16autofs4: renamer unhashed to active in autofs4_lookup()Ian Kent1-10/+10
Rename the variable unhashed to active in autofs4_lookup() to better reflect its usage. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16autofs4: use autofs_info for pending flagIan Kent3-28/+35
Eliminate the use of the d_lock spin lock by using the autofs super block info spin lock. This reduces the number of spin locks we use by one and makes the code for the following patch (to redirect ->d_revalidate() to ->lookup()) a little simpler. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16autofs4: use helper function for need mount checkIan Kent1-2/+10
Define simple helper function for checking if we need to trigger a mount. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16autofs4: use helper functions for expiring listIan Kent2-12/+29
Define some simple helper functions for adding and deleting entries on the expiring dentry list. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16autofs4: use helper functions for active list handlingIan Kent3-11/+38
Define some simple helper functions for adding and deleting entries on the active (and unhashed) dentry list. Signed-off-by: Ian Kent <raven@themaw.net> Cc: Sage Weil <sage@newdream.net> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Yehuda Saheh <yehuda@newdream.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16vt: make the default cursor shape configurableClemens Ladisch2-2/+10
For embedded systems, the blinking cursor at startup time can be annoying and unintended. Add a new kernel parameter to change the default cursor shape. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Cc: Daniel Mack <daniel@caiaq.de> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: David Newall <davidn@davidnewall.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16proc: rename de_get() to pde_get() and inline itAlexey Dobriyan3-39/+23
* de_get() is trivial -- make inline, save a few bits of code, drop "refcount is 0" check -- it should be done in some generic refcount code, don't recall it's was helpful * rename GET and PUT functions to pde_get(), pde_put() for cool prefix! * remove obvious and incorrent comments * in remove_proc_entry() use pde_put(), when I fixed PDE refcounting to be normal one, remove_proc_entry() was supposed to do "-1" and code now reflects that. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16timecompare: fix half-Y2K38 problem in timecompare_update while calculating ↵Barry Song1-1/+1
offset ktime will overflow from 03:14:07 UTC on Tuesday, 19 January 2038, ktime_add() in timecompare_update() will overflow a half earlier. As a result, wrong offset will be gotten, then cause some strange problems. Signed-off-by: Barry Song <21cnbao@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Patrick Ohly <patrick.ohly@intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: John Stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16oom-kill: fix NUMA constraint check with nodemaskKAMEZAWA Hiroyuki4-21/+53
Fix node-oriented allocation handling in oom-kill.c I myself think of this as a bugfix not as an ehnancement. In these days, things are changed as - alloc_pages() eats nodemask as its arguments, __alloc_pages_nodemask(). - mempolicy don't maintain its own private zonelists. (And cpuset doesn't use nodemask for __alloc_pages_nodemask()) So, current oom-killer's check function is wrong. This patch does - check nodemask, if nodemask && nodemask doesn't cover all node_states[N_HIGH_MEMORY], this is CONSTRAINT_MEMORY_POLICY. - Scan all zonelist under nodemask, if it hits cpuset's wall this faiulre is from cpuset. And - modifies the caller of out_of_memory not to call oom if __GFP_THISNODE. This doesn't change "current" behavior. If callers use __GFP_THISNODE it should handle "page allocation failure" by itself. - handle __GFP_NOFAIL+__GFP_THISNODE path. This is something like a FIXME but this gfpmask is not used now. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hioryu@jp.fujitsu.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16oom-kill: show virtual size and rss information of the killed processKOSAKI Motohiro1-3/+13
In a typical oom analysis scenario, we frequently want to know whether the killed process has a memory leak or not at the first step. This patch adds vsz and rss information to the oom log to help this analysis. To save time for the debugging. example: =================================================================== rsyslogd invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0 Pid: 1308, comm: rsyslogd Not tainted 2.6.32-rc6 #24 Call Trace: [<ffffffff8132e35b>] ?_spin_unlock+0x2b/0x40 [<ffffffff810f186e>] oom_kill_process+0xbe/0x2b0 (snip) 492283 pages non-shared Out of memory: kill process 2341 (memhog) score 527276 or a child Killed process 2341 (memhog) vsz:1054552kB, anon-rss:970588kB, file-rss:4kB =========================================================================== ^ | here [rientjes@google.com: fix race, add pid & comm to message] Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15mfd: compile fix for twl4030 renamingStephen Rothwell1-5/+5
Caused by commit 0b83ddebc6e884dc0221358cf68c461520fbdd8e ("MFD: twl4030: add twl4030_codec MFD as a new child to the core") interacting with commit b07682b6056eb6701f8cb86aa5800e6f2ea7919b ("mfd: Rename twl4030* driver files to enable re-use"). This file seems to have been missed in the renaming. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfsLinus Torvalds70-2836/+2369
* 'for-linus' of git://oss.sgi.com/xfs/xfs: xfs: event tracing support xfs: change the xfs_iext_insert / xfs_iext_remove xfs: cleanup bmap extent state macros
2009-12-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dmLinus Torvalds23-889/+2349
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (80 commits) dm snapshot: use merge origin if snapshot invalid dm snapshot: report merge failure in status dm snapshot: merge consecutive chunks together dm snapshot: trigger exceptions in remaining snapshots during merge dm snapshot: delay merging a chunk until writes to it complete dm snapshot: queue writes to chunks being merged dm snapshot: add merging dm snapshot: permit only one merge at once dm snapshot: support barriers in snapshot merge target dm snapshot: avoid allocating exceptions in merge dm snapshot: rework writing to origin dm snapshot: add merge target dm exception store: add merge specific methods dm snapshot: create function for chunk_is_tracked wait dm snapshot: make bio optional in __origin_write dm mpath: reject messages when device is suspended dm: export suspended state to targets dm: rename dm_suspended to dm_suspended_md dm: swap target postsuspend call and setting suspended flag dm crypt: add plain64 iv ...
2009-12-15Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds3-32/+95
* 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block: cfq: set workload as expired if it doesn't have any slice left Fix a CFQ crash in "for-2.6.33" branch of block tree cfq: Remove wait_request flag when idle time is being deleted cfq-iosched: commenting non-obvious initialization cfq-iosched: Take care of corner cases of group losing share due to deletion cfq-iosched: Get rid of cfqq wait_busy_done flag cfq: Optimization for close cooperating queue searching block,xd: Delay allocation of DMA buffers until device is known drbd: Following the hmac change to SHASH (see linux commit 8bd1209cfff) cfq-iosched: reduce write depth only if sync was delayed
2009-12-15Merge branch 'for-linus' of ↵Linus Torvalds6-3/+16
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: ac97_codec - increase timeout for analog sections to 5 second ASoC: Correct code taking the size of a pointer ALSA: hda - Add PCI IDs for Nvidia G2xx-series ALSA: sound/isa/gus: Correct code taking the size of a pointer ALSA: hda: Fix max PCM level to 0 dB for AD1981_HP ALSA: hda: Use ALC260_WILL quirk for another Acer model (0x1025007f)
2009-12-15Merge branch 'core-locking-for-linus' of ↵Linus Torvalds136-2086/+2394
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (26 commits) clockevents: Convert to raw_spinlock clockevents: Make tick_device_lock static debugobjects: Convert to raw_spinlocks perf_event: Convert to raw_spinlock hrtimers: Convert to raw_spinlocks genirq: Convert irq_desc.lock to raw_spinlock smp: Convert smplocks to raw_spinlocks rtmutes: Convert rtmutex.lock to raw_spinlock sched: Convert pi_lock to raw_spinlock sched: Convert cpupri lock to raw_spinlock sched: Convert rt_runtime_lock to raw_spinlock sched: Convert rq->lock to raw_spinlock plist: Make plist debugging raw_spinlock aware bkl: Fixup core_lock fallout locking: Cleanup the name space completely locking: Further name space cleanups alpha: Fix fallout from locking changes locking: Implement new raw_spinlock locking: Convert raw_rwlock functions to arch_rwlock locking: Convert raw_rwlock to arch_rwlock ...
2009-12-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6Linus Torvalds19-719/+6389
* git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: avr32: update default configurations for ATNGW100, ATSTK1002 and ATSTK1006 avr32: add default configurations for ATNGW100 mkII and EVKLCD10X avr32: add support for ATNGW100 mkII board avr32: convert to asm-generic/hardirq.h avr32: add two new at91 to cpu.h definition avr32: clean up linker script using standard macros. avr32: MRMT: correct setup of SPI slaves avr32: function for independently setting up SPI slaves avr32: re-instate MCI WP/CD pin assignments for ATNGW100
2009-12-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds31-210/+154
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Fix clock event multiplier printf format. sparc64: Use clock{source,events}_calc_mult_shift(). sparc64: Use free_bootmem_late() in mdesc_lmb_free(). sparc: Add alignment and emulation fault perf events. sparc64: Add syscall tracepoint support. sparc: Stop trying to be so fancy and use __builtin_{memcpy,memset}() sparc: Use __builtin_object_size() to validate the buffer size for copy_from_user() sparc64: Add some missing __kprobes annotations to kernel fault paths. sparc64: Use kprobes_built_in() to avoid ifdefs in fault_64.c sparc: Validate that kprobe address is 4-byte aligned. sparc64: Don't specify IRQF_SHARED for LDC interrupts. sparc64: Fix stack debugging IRQ stack regression. sparc64: Fix overly strict range type matching for PCI devices.
2009-12-15Merge git://git.infradead.org/battery-2.6Linus Torvalds10-218/+420
* git://git.infradead.org/battery-2.6: power_supply_sysfs: Handle -ENODATA in a special way wm831x_backup: Remove unused variables gta02: Set pcf50633 charger_reference_current_ma pcf50633: Query charger status directly pcf50633: Properly reenable charging when the supply conditions change pcf50633: Get rid of charging restart software auto-triggering pcf50633: introduces battery charging current control pcf50633: Add ac power supply class to the charger wm831x: Factor out WM831x backup battery charger
2009-12-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds1-7/+16
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: USB: Close usb_find_interface race v3 Revert "USB: Close usb_find_interface race"
2009-12-15lis3: update documentation to match latest changesSamu Onkalo1-7/+24
[akpm@linux-foundation.org: s/q/g/ (Randy)] Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Éric Piel <Eric.Piel@tremplin-utc.net> Cc: Pavel Machek <pavel@ucw.cz> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15lis3: scale output values to mgSamu Onkalo2-3/+31
Report output values as 1/1000 of earth gravity. Output values from lis3 can be read from sysfs position entry and from input device. Input device can be accessed as event device and as joystick device. Joystick device can be in two modes. Meaning of the output values varies from case to case depending on the chip type and configuration (scale). Only joystick interface in JS_CORR_BROKEN mode returned somehow similar output values in different configurations. Joystick device is in that state by default in case of lis3. Position sysfs entry, input event device and raw joystick device have been little bit broken since meaning of the output values has been varied between 12 and 8 bit devices. Applications which relayed on those methods failed if the chip is different than the expected one. This patch converts output values to mean similar thing in different configurations. Both 8 and 12 bit devices reports now same acceleration values. If somebody implements full scale support to the driver, output values will still mean the same. Scaling factor and input device range must be updated in that case. Joystick interface in JS_CORR_BROKEN mode is not touched by this patch. All other interfaces have different scale after this change. For 12 bit device scaling factor is 0.977 which keeps scaled and unscaled values are quite close to each others. For 8 bit device, scaled values are 18 times bigger than unscaled values. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Éric Piel <Eric.Piel@tremplin-utc.net> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15lis3: sysfs entry for setting chip measurement rateSamu Onkalo2-7/+46
It is possible to read position information at the chip measurement rate via sysfs. This patch adds possibility to configure chip measurement rate. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Signed-off-by: Éric Piel <Eric.Piel@tremplin-utc.net> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15lis3lv02d: remove calibaration functionalitySamu Onkalo2-32/+3
Chip is calibrated by the manufacturer. There is no need to calibarate it at driver level. If the chip is used as a joystick, calibaration can be done using joystick device calibration mechanism. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Éric Piel <Eric.Piel@tremplin-utc.net> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15lis3: selftest supportSamu Onkalo3-3/+81
Implement selftest feature as specified by chip manufacturer. Control: read selftest sysfs entry Response: "OK x y z" or "FAIL x y z" where x, y, and z are difference between selftest mode and normal mode. Test is passed when values are within acceptance limit values. Acceptance limits are provided via platform data. See chip spesifications for acceptance limits. If limits are not properly set, OK / FAIL decision is meaningless. However, userspace application can still make decision based on the numeric x, y, z values. Selftest is meant for HW diagnostic purposes. It is not meant to be called during normal use of the chip. It may cause false interrupt events. Selftest mode delays polling of the normal results but it doesn't cause wrong values. Chip must be in static state during selftest. Any acceration during the test causes most probably failure. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Éric Piel <Eric.Piel@tremplin-utc.net> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15lis3lv02d: proper power on sequenceSamu Onkalo2-14/+28
Lis3 accelerometer sensors have quite long power on delay (up to 125 ms). This patch adds necessary delay to power on sequence for currently supported lis3 chips. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Tested-by: Éric Piel <eric.piel@tremplin-utc.net> Acked-by: Éric Piel <eric.piel@tremplin-utc.net> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15lis3: fix show rate for 8 bits chipsÉric Piel2-8/+17
Originally the driver was only targeted to 12bits sensors. When support for 8bits sensors was added, some slight difference in the registers were overlooked. This should fix it, both for initialization, and for displaying the rate. Reported-by: Kalhan Trisal <kalhan.trisal@intel.com> Reported-by: Christoph Plattner <christoph.plattner@gmx.at> Tested-by: Christoph Plattner <christoph.plattner@gmx.at> Tested-by: Samu Onkalo <samu.p.onkalo@nokia.com> Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15lis3: update documentation and commentsÉric Piel4-42/+52
Most of the documentation and comments were written when the driver was only supporting one type of chip, only via ACPI/HP. Update the info to the much clearer understanding that we have now. Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15lis3lv02d: correct memory leak in module unloadSamu Onkalo1-0/+1
polled input device itself was not free'd. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Tested-by: Éric Piel <eric.piel@tremplin-utc.net> Acked-by: Éric Piel <eric.piel@tremplin-utc.net> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15lis3lv02d: send sync eventSamu Onkalo1-0/+1
Send input_sync after each measurement round. This helps userspace to detect which reported values belongs to the same measurement. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Tested-by: Éric Piel <eric.piel@tremplin-utc.net> Acked-by: Éric Piel <eric.piel@tremplin-utc.net> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15hwmon: w83627ehf updatesDaniel J Blueman2-21/+61
Add control of fan minimum turn-on output levels, decoupling it from the fan turn-off output level. Add control of rate of change of fan output level. These in turn allow lower turn-off rotor speed and smoother transitions for better thermal and acoustic control authority. Add support for constant fan speed and proportional-response operations modes. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: David Hubbard <david.c.hubbard@gmail.com> Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15lis3lv02d: axis remap and resource setup/releaseSamu Onkalo1-0/+12
Add the possibility to remap axes via platform data. Function pointers for resource setup and release purposes Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Éric Piel <eric.piel@tremplin-utc.net> Cc: Pavel Machek <pavel@ucw.cz> Cc: Jean Delvare <khali@linux-fr.org> Cc: "Trisal, Kalhan" <kalhan.trisal@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15crc32: minor optimizations and cleanupJoakim Tjernlund1-77/+44
Move common crc body to new function crc32_body() cleaup and micro optimize crc32_body for speed and less size. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15mmc: let tmio-mmc use dev_name() with request_irq()Magnus Damm1-1/+1
Improve the /proc/interrupts output so the irq number can be mapped to platform device on boards with multiple tmio_mmc instances. Signed-off-by: Magnus Damm <damm@opensource.se> Cc: <linux-mmc@vger.kernel.org> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15mmc: Blackfin SD Host Controller DriverCliff Cai3-0/+659
Add SD host driver for Blackfin BF54x and BF51x. [akpm@linux-foundation.org: fix layout, c99 warning] Signed-off-by: Cliff Cai <cliffcai.sh@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15mmc: atmel-mci: new MCI2 module support in atmel-mci driverNicolas Ferre1-10/+75
This new revision of the IP adds some improvements to the MCI already present in several Atmel SOC. Some new registers are added and a particular way of handling DMA interaction lead to a new sequence in function call which is backward compatible: On MCI2, we must set the DMAEN bit to enable the DMA handshaking interface. This must happen before the data transfer command is sent. A new function is able to differentiate MCI2 code and is based on knowledge of processor id (cpu_is_xxx()). Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15atmel-mci: change use of dma slave interfaceNicolas Ferre5-28/+98
Allow the use of another DMA controller driver in atmel-mci sd/mmc driver. This adds a generic dma_slave pointer to the mci platform structure where we can store DMA controller information. In atmel-mci we use information provided by this structure to initialize the driver (with new helper functions that are architecture dependant). This also adds at32/avr32 chip modifications to cope with this new access method. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15mmc: add module parameter to set whether cards are assumed removableBen Hutchings5-43/+23
Some people run general-purpose distribution kernels on netbooks with a card that is physically non-removable or logically non-removable (e.g. used for /home) and cannot be cleanly unmounted during suspend. Add a module parameter to set whether cards are assumed removable or non-removable, with the default set by CONFIG_MMC_UNSAFE_RESUME. In general, it is not possible to tell whether a card present in an MMC slot after resume is the same that was there before suspend. So there are two possible behaviours, each of which will cause data loss in some cases: CONFIG_MMC_UNSAFE_RESUME=n (default): Cards are assumed to be removed during suspend. Any filesystem on them must be unmounted before suspend; otherwise, buffered writes will be lost. CONFIG_MMC_UNSAFE_RESUME=y: Cards are assumed to remain present during suspend. They must not be swapped during suspend; otherwise, buffered writes will be flushed to the wrong card. Currently the choice is made at compile time and this allows that to be overridden at module load time. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Cc: Wouter van Heyst <larstiq@larstiq.dyndns.org> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15s3cmci: convert missed s3c2410_gpio calls to gpiolib callsBen Dooks1-5/+3
Convert two missed s3c2410 specific gpio calls to gpiolib calls. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Simtec Linux Team <linux@simtec.co.uk> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15sdhci: add support for the SysKonnect CardBus2SDIO adapterNicolas Pitre1-0/+75
This is still in use especially to develop SDIO device drivers on laptop machines which are lacking SDIO slots. This adapter supports SDIO cards only due to lack of 136-bit response capability. Signed-off-by: Nicolas Pitre <nico@marvell.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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