aboutsummaryrefslogtreecommitdiff
path: root/drivers/clocksource
AgeCommit message (Collapse)AuthorFilesLines
2011-06-10i8253: Export i8253_lock unconditionallyThomas Gleixner1-2/+0
We don't want to add endless selects and module ifdefs. Reported-by: Ingo Molnar <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
2011-06-09i8253: Remove I8253_LOCK configThomas Gleixner1-0/+2
Now that all extra ifdeffed implementations are gone, depend the lock export on PCSPKR_PLATFORM Signed-off-by: Thomas Gleixner <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Russell King <[email protected]>
2011-06-09i8253: Consolidate all kernel definitions of i8253_lockRalf Baechle3-2/+19
Move them to drivers/clocksource/i8253.c and remove the implementations in arch/ [ tglx: Avoid the extra file in lib - folded arch patches in. The export will become conditional in a later step ] Signed-off-by: Ralf Baechle <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Cc: Russell King <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
2011-06-09i8253: Create linux/i8253.h and use it in all 8253 related filesRalf Baechle1-1/+1
Signed-off-by: Ralf Baechle <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]> arch/arm/mach-footbridge/isa-timer.c | 2 +- arch/mips/cobalt/time.c | 2 +- arch/mips/jazz/irq.c | 2 +- arch/mips/kernel/i8253.c | 2 +- arch/mips/mti-malta/malta-time.c | 2 +- arch/mips/sgi-ip22/ip22-time.c | 2 +- arch/mips/sni/time.c | 2 +- arch/x86/kernel/apic/apic.c | 2 +- arch/x86/kernel/apm_32.c | 2 +- arch/x86/kernel/hpet.c | 2 +- arch/x86/kernel/i8253.c | 2 +- arch/x86/kernel/time.c | 2 +- drivers/block/hd.c | 2 +- drivers/clocksource/i8253.c | 2 +- drivers/input/gameport/gameport.c | 2 +- drivers/input/joystick/analog.c | 2 +- drivers/input/misc/pcspkr.c | 2 +- include/linux/i8253.h | 11 +++++++++++ sound/drivers/pcsp/pcsp.h | 2 +- 19 files changed, 29 insertions(+), 18 deletions(-)
2011-05-31Revert "clocksource: sh_cmt: Runtime PM support"Paul Mundt1-10/+2
This reverts commit 01fa68b58492a5d6708a91c1f474b6a099a9509e. The same note as per the sh_tmu change applies here, too. Signed-off-by: Paul Mundt <[email protected]>
2011-05-31Revert "clocksource: sh_tmu: Runtime PM support"Paul Mundt1-10/+2
This reverts commit 1b842e91fea9447eff5eb687e28ad61c02f5033e. There is a fundamental ordering race between the early and late probe paths and the runtime PM tie-in that results in __pm_runtime_resume() attempting to take a lock that hasn't been initialized yet (which by proxy also suggests that pm_runtime_init() hasn't yet been run on the device either, making the entire thing unsafe) -- resulting in instant death on SMP or on UP with spinlock debugging enabled: sh_tmu.0: used for clock events sh_tmu.0: used for periodic clock events BUG: spinlock trylock failure on UP on CPU#0, swapper/0 lock: 804db198, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0 ... Revert it for now until the ordering issues can be resolved, or we can get some more help from the runtime PM framework to make this possible. Signed-off-by: Paul Mundt <[email protected]>
2011-05-23Merge branch 'sh-latest' of ↵Linus Torvalds2-27/+35
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (23 commits) sh: Ignore R_SH_NONE module relocations. SH: SE7751: Fix pcibios_map_platform_irq prototype. sh: remove warning and warning_symbol from struct stacktrace_ops sh: wire up sys_sendmmsg. clocksource: sh_tmu: Runtime PM support clocksource: sh_tmu: __clocksource_updatefreq_hz() update clocksource: sh_cmt: Runtime PM support clocksource: sh_cmt: __clocksource_updatefreq_hz() update dmaengine: shdma: synchronize RCU before freeing, simplify spinlock dmaengine: shdma: add runtime- and system-level power management dmaengine: shdma: fix locking sh: sh-sci: sh7377 and sh73a0 build fixes sh: cosmetic improvement: use an existing pointer serial: sh-sci: suspend/resume wakeup support V2 serial: sh-sci: Runtime PM support sh: select IRQ_FORCED_THREADING. sh: intc: Set virtual IRQs as nothread. sh: fixup fpu.o compile order i2c: add a module alias to the sh-mobile driver ALSA: add a module alias to the FSI driver ...
2011-05-23clocksource: add common mmio clocksourceRussell King3-0/+77
Add a generic mmio clocksource, covering both 32-bit and 16-bit register access sizes, for up or down counters. This can be used to easily create clocksources for simple counter-based implementations. Cc: Alessandro Rubini <[email protected]> Cc: Colin Cross <[email protected]> Cc: Eric Miao <[email protected]> Cc: Erik Gilling <[email protected]> Acked-by: "Hans J. Koch" <[email protected]> Cc: Imre Kaloz <[email protected]> Cc: Krzysztof Halasa <[email protected]> Cc: Kukjin Kim <[email protected]> Cc: Lennert Buytenhek <[email protected]> Cc: Linus Walleij <[email protected]> Cc: [email protected] Acked-by: Nicolas Pitre <[email protected]> Cc: Olof Johansson <[email protected]> Tested-by: Sascha Hauer <[email protected]> Reviewed-by: Thomas Gleixner <[email protected]> Tested-by: Tony Lindgren <[email protected]> Reviewed-by: Viresh Kumar <[email protected]> Cc: Wan ZongShun <[email protected]> Signed-off-by: Russell King <[email protected]>
2011-05-23clocksource: sh_tmu: Runtime PM supportMagnus Damm1-2/+10
Add Runtime PM support to the TMU driver. The hardware device is enabled as long as the clocksource or the clockevent portion of the driver is used. Signed-off-by: Magnus Damm <[email protected]> Acked-by: John Stultz <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2011-05-23clocksource: sh_tmu: __clocksource_updatefreq_hz() updateMagnus Damm1-11/+8
This patch updates the clocksource part of the TMU driver to make use of the __clocksource_updatefreq_hz() function. Without this patch the old code uses clocksource_register() together with a hack that assumes a never changing clock rate (see clk_enable(), clk_get_rate() and clk_disable()). The patch uses clocksource_register_hz() with 1 Hz as initial value, then lets the ->enable() callback update the value with __clocksource_updatefreq_hz() once the struct clk has been enabled and the frequency is stable. Signed-off-by: Magnus Damm <[email protected]> Acked-by: John Stultz <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2011-05-23clocksource: sh_cmt: Runtime PM supportMagnus Damm1-2/+10
Add Runtime PM support to the CMT driver. The hardware device is enabled as long as the clocksource or the clockevent portion of the driver is used. Signed-off-by: Magnus Damm <[email protected]> Acked-by: John Stultz <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2011-05-23clocksource: sh_cmt: __clocksource_updatefreq_hz() updateMagnus Damm1-12/+7
This patch updates the clocksource part of the CMT driver to make use of the __clocksource_updatefreq_hz() function. Without this patch the old code uses clocksource_register() together with a hack that assumes a never changing clock rate (see clk_enable(), clk_get_rate() and clk_disable()). The patch uses clocksource_register_hz() with 1 Hz as initial value, then lets the ->enable() callback update the value with __clocksource_updatefreq_hz() once the struct clk has been enabled and the frequency is stable. Signed-off-by: Magnus Damm <[email protected]> Acked-by: John Stultz <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2011-05-14Merge branch 'consolidate-clksrc-i8253' of ↵Thomas Gleixner3-0/+91
master.kernel.org:~rmk/linux-2.6-arm into timers/clocksource Conflicts: arch/ia64/kernel/cyclone.c arch/mips/kernel/i8253.c arch/x86/kernel/i8253.c Reason: Resolve conflicts so further cleanups do not conflict further Signed-off-by: Thomas Gleixner <[email protected]>
2011-05-14clocksource: add common i8253 PIT clocksourceRussell King3-0/+91
This is based upon both arch/arm/mach-footbridge/isa-timer.c and arch/x86/kernel/i8253.c. Acked-by: John Stultz <[email protected]> Acked-by: Thomas Gleixner <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Ralf Baechle <[email protected]> Signed-off-by: Russell King <[email protected]>
2011-02-21x86: Convert remaining x86 clocksources to clocksource_register_hz/khzJohn Stultz1-8/+2
This converts the remaining x86 clocksources to use clocksource_register_hz/khz. CC: [email protected] CC: Glauber Costa <[email protected]> CC: Dimitri Sivanich <[email protected]> CC: Rusty Russell <[email protected]> CC: Jeremy Fitzhardinge <[email protected]> CC: Chris McDermott <[email protected]> CC: Thomas Gleixner <[email protected]> Tested-by: Konrad Rzeszutek Wilk <[email protected]> [xen] Signed-off-by: John Stultz <[email protected]>
2011-01-26drivers/clocksource/tcb_clksrc.c: fix init sequenceVoss, Nikolaus1-2/+2
setup_irq() was called before clockevents_register_device() which is needed by the irq handler. Bug was reproducible by restarting the kernel using kexec (reliable crash). Signed-off-by: Nikolaus Voss <[email protected]> Cc: David Brownell <[email protected]> Cc: Haavard Skinnemoen <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-01-21acpi_pm: Clear pmtmr_ioport if acpi_pm initialization failsKonrad Rzeszutek Wilk1-1/+5
If the acpi pm timer throws invalid data, clear pmtmr_ioport so the pm timer won't accidentally be used. This was found when using Xen where there is a acpi pm reported, but gives bogus values, and other code was continuing to try to use the pm timer after the initialization failed. [jstultz: Catch additional failure and reword changelog message. ] Signed-off-by: Konrad Rzeszutek Wilk <[email protected]> Signed-off-by: John Stultz <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
2010-12-17clocksource: sh_cmt: Remove nested spinlock fixTakashi YOSHII1-6/+11
There are control flow that sh_cmt_set_next() does double spin-lock. The callers sh_cmt_{start,stop}() already have lock. But another callers sh_cmt_clock_event_{start,next}() does not. Now sh_cmt_set_next() does not lock by itself. All the callers should hold spin-lock before calling it. [[email protected]: use __sh_cmt_set_next() to simplify code] [[email protected]: added stable, suitable for v2.6.35 + v2.6.36] Cc: [email protected] Signed-off-by: Takashi YOSHII <[email protected]> Signed-off-by: Magnus Damm <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2010-10-31ARM: shmobile: remove sh_timer_config clk memberMagnus Damm3-21/+9
Now when the SH-Mobile ARM platforms have been converted to use device name it is possible to remove "clk" from struct sh_timer_config. Signed-off-by: Magnus Damm <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2010-08-16Merge branch 'master' of ↵Paul Mundt1-7/+2
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: arch/sh/include/asm/Kbuild drivers/Makefile Signed-off-by: Paul Mundt <[email protected]>
2010-08-04clocksource: sh_cmt: Rate calculation fixMagnus Damm1-1/+1
Fix the rate calculation in the CMT driver. Without this fix the clocksource runs way too fast and we get a divide-by-zero error. Signed-off-by: Magnus Damm <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2010-08-04clocksource: sh_cmt: One-off clockevent fix V2Magnus Damm1-5/+5
Fix a one-off error in the CMT driver V2. The match register should be programmed with the period minus one. Many thanks to Eiraku-san for tracking down this issue. Signed-off-by: Magnus Damm <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2010-07-27x86: Convert common clocksources to use clocksource_register_hz/khzJohn Stultz1-7/+2
This converts the most common of the x86 clocksources over to use clocksource_register_hz/khz. Signed-off-by: John Stultz <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
2010-07-20Andres has movedAndres Salomon1-1/+1
My Collabora address is no longer enabled - update the MODULE_AUTHOR fields of drivers to my current email address. Signed-off-by: Andres Salomon <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-06-22clocksource: sh_cmt: Fix up bogus shift value.Paul Mundt1-1/+1
The previous CMT fixup accidentally copied in the TMU shift value, reset this back to its original value while preserving the TMU fix. Signed-off-by: Paul Mundt <[email protected]>
2010-06-02clocksource: sh_cmt: compute mult and shift before registrationPaul Mundt1-9/+13
Based on the sh_tmu change in 66f49121ffa41a19c59965b31b046d8368fec3c7 ("clocksource: sh_tmu: compute mult and shift before registration"). The same issues impact the sh_cmt driver, so we take the same approach here. Cc: [email protected] Signed-off-by: Paul Mundt <[email protected]>
2010-06-02clocksource: sh_tmu: compute mult and shift before registrationAurelien Jarno1-9/+11
Since commit 98962465ed9e6ea99c38e0af63fe1dcb5a79dc25 ("nohz: Prevent clocksource wrapping during idle"), the CPU of an R2D board never goes to idle. This commit assumes that mult and shift are assigned before the clocksource is registered. As a consequence the safe maximum sleep time is negative and the CPU never goes into idle. This patch fixes the problem by moving mult and shift initialization from sh_tmu_clocksource_enable() to sh_tmu_register_clocksource(). Signed-off-by: Aurelien Jarno <[email protected]> Cc: [email protected] Signed-off-by: Paul Mundt <[email protected]>
2010-05-19Merge branch 'timers-fixes-for-linus' of ↵Linus Torvalds1-3/+5
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: cs5535-clockevt: Free timer in IRQ setup error path
2010-04-26Merge branch 'sh/stable-updates'Paul Mundt3-0/+3
Conflicts: arch/sh/kernel/dwarf.c drivers/dma/shdma.c Signed-off-by: Paul Mundt <[email protected]>
2010-04-15sh: Disable IRQ balancing for timer and IPI IRQs.Paul Mundt3-3/+6
Make sure that the timer IRQs and IPIs aren't enabled for IRQ balancing. IPIs are disabled as a result of being percpu while the timers simply disable balancing outright. Signed-off-by: Paul Mundt <[email protected]>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo3-0/+3
implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <[email protected]> Guess-its-ok-by: Christoph Lameter <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Lee Schermerhorn <[email protected]>
2010-03-29clocksource: Deprecate clock string across the SH drivers.Paul Mundt3-12/+24
We want to get rid of the clock string from platform data entirely, depending on the clkdev-based clock lookup to do the right thing for us instead. This converts all of the SH drivers to request their associated function clocks directly, and if there is no match for that then we fall back on the legacy lookup while warning about it. After all of the outstanding CPUs have been converted to clkdev lookups the clock string will be killed off completely. Signed-off-by: Paul Mundt <[email protected]>
2010-03-12cs5535-clockevt: Free timer in IRQ setup error pathJens Rottmann1-3/+5
Due to a hardware limitation cs5535_mfgpt_free_timer() cannot actually release the timer hardware, but it will at least free the now unreferenced struct associated with it so calling it is the cleaner thing to do. Signed-off-by: Jens Rottmann <[email protected]> Acked-by: Andres Salomon <[email protected]> Cc: Jordan Crouse <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: john stultz <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
2010-03-10clocksource: Use dev_name() universally across the SH drivers.Paul Mundt3-47/+37
There is no need to copy in the name from the sh timer config now that dev_name() is available early. We prefer the dev_name() variant for consistent naming. Signed-off-by: Paul Mundt <[email protected]>
2010-03-06MFGPT: move clocksource menuRandy Dunlap1-9/+0
Move the CS5535 MFGPT hrtimer kconfig option to be with the other MFGPT options. This makes it easier to find and also removes it from the main "Device Drivers" menu, where it should not have been. Signed-off-by: Randy Dunlap <[email protected]> Acked-by: Andres Salomon <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-01Merge branch 'timers-for-linus' of ↵Linus Torvalds1-28/+7
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: posix-timers.c: Don't export local functions clocksource: start CMT at clocksource resume clocksource: add suspend callback clocksource: add argument to resume callback ntp: Cleanup xtime references in ntp.c ntp: Make time_esterror and time_maxerror static
2010-02-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds3-19/+25
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (187 commits) sh: remove dead LED code for migo-r and ms7724se sh: ecovec build fix for CONFIG_I2C=n sh: ecovec r-standby support sh: ms7724se r-standby support sh: SH-Mobile R-standby register save/restore clocksource: Fix up a registration/IRQ race in the sh drivers. sh: ms7724: modify scan_timing for KEYSC sh: ms7724: Add sh_sir support sh: mach-ecovec24: Add sh_sir support sh: wire up SET/GET_UNALIGN_CTL. sh: allow alignment fault mode to be configured at kernel boot. sh: sh7724: Update FSI/SPU2 clock sh: always enable sh7724 vpu_clk and set to 166MHz on Ecovec sh: add sh7724 kick callback to clk_div4_table sh: introduce struct clk_div4_table sh: clock-cpg div4 set_rate() shift fix sh: Turn on speculative return for SH7785 and SH7786 sh: Merge legacy and dynamic PMB modes. sh: Use uncached I/O helpers in PMB setup. sh: Provide uncached I/O helpers. ...
2010-02-25clocksource: Fix up a registration/IRQ race in the sh drivers.Paul Mundt3-19/+25
All of the SH clocksource drivers follow the scheme that the IRQ is setup prior to registering the clockevent. The interrupt handler in the clockevent cases looks to the event handler function pointer being filled in by the registration code, permitting us to get in to situations where asserted IRQs step in to the handler before registration has had a chance to complete and hitting a NULL pointer deref. In practice this is not an issue for most platforms, but some of them with fairly special loaders (or that are chain-loading from another kernel) may enter in to this situation. This fixes up the oops reported by Rafael on hp6xx. Reported-and-tested-by: Rafael Ignacio Zurita <[email protected]> Cc: [email protected] Signed-off-by: Paul Mundt <[email protected]>
2010-02-22geode-mfgpt: restore previous behavior for selecting IRQJens Rottmann1-1/+1
geode-mfgpt: restore previous behavior for selecting IRQ The MFGPT IRQ used to be, in order of decreasing priority, * IRQ supplied by the user as a boot-time parameter, * IRQ previously set by the BIOS or another driver, * default IRQ given at compile time. Return to this behavior, which got broken when splitting the MFGPT/clocksource driver for 2.6.33-rc1. Signed-off-by: Jens Rottmann <[email protected]> Acked-by: Andres Salomon <[email protected]> Cc: Jordan Crouse <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: john stultz <[email protected]> Acked-by: Thomas Gleixner <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-02-05clocksource: start CMT at clocksource resumeMagnus Damm1-28/+7
Add code to start the CMT timer on clocksource resume. While at it handle the suspend case as well. Remove the platform device specific suspend calls. This makes sure the timer is started during sysdev_resume(). Without this patch the clocksource may be read as suspended, this after sysdev resume but before platform device resume. Signed-off-by: Magnus Damm <[email protected]> Cc: john stultz <[email protected]> Cc: Paul Mundt <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
2009-12-15cs5535: add a generic clock event MFGPT driverAndres Salomon3-0/+207
This is based on the old code in arch/x86/kernel/mfgpt_32.c, but is modular and not Geode-specific. There's no reason why the clock event device needs to be registered so early at boot; the clockevent code is perfectly capable of dynamic switching. [[email protected]: add linux/irq.h include] Signed-off-by: Andres Salomon <[email protected]> Cc: Jordan Crouse <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: john stultz <[email protected]> Cc: Chris Ball <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2009-08-15sh: CMT suspend/resumeMagnus Damm1-0/+28
This patch updates the SuperH CMT driver with suspend and resume callbacks for the suspend-to-ram case. This patch stops the CMT channel at suspend time to avoid unwanted wake up events. Signed-off-by: Magnus Damm <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2009-06-24clocksource: sh_tmu: Make undefined TCOR behaviour less undefined.Shin-ichiro KAWASAKI1-1/+1
Avoid undocumented vague TMU behavior when zero value is set to TCOR. This primarily fixes up issues encountered under qemu with a zero-length period, while the hardware itself is fairly ambivalent one way or the other. Signed-off-by: Shin-ichiro KAWASAKI <[email protected]> Acked-by: Magnus Damm <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2009-06-17Merge branches 'sh/pci-express-integration', 'sh/rsk-updates', ↵Paul Mundt1-0/+1
'sh/platform-updates' and 'sh/perf_counter'
2009-06-17sh: turn off irqs when disabling CMT/TMU timersMagnus Damm2-0/+6
Modify the CMT and TMU drivers to disable interrupts when disabling the timer. Only using start/stop bits is not enough. This fixes a bootup hang on Migo-R when the CMT is replaced by TMU for clockevents but the CMT keeps on delivering irqs even though the timer start bit is off. Signed-off-by: Magnus Damm <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2009-06-16time: move PIT_TICK_RATE to linux/timex.hArnd Bergmann1-0/+1
PIT_TICK_RATE is currently defined in four architectures, but in three different places. While linux/timex.h is not the perfect place for it, it is still a reasonable replacement for those drivers that traditionally use asm/timex.h to get CLOCK_TICK_RATE and expect it to be the PIT frequency. Note that for Alpha, the actual value changed from 1193182UL to 1193180UL. This is unlikely to make a difference, and probably can only improve accuracy. There was a discussion on the correct value of CLOCK_TICK_RATE a few years ago, after which every existing instance was getting changed to 1193182. According to the specification, it should be 1193181.818181... Signed-off-by: Arnd Bergmann <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Len Brown <[email protected]> Cc: john stultz <[email protected]> Cc: Dmitry Torokhov <[email protected]> Cc: Takashi Iwai <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2009-06-14clocksource: Drop unused irqaction.mask from SH drivers.Paul Mundt3-3/+0
The irqaction.mask is legacy code that is wholly unused and going away, so simply drop its use in the SH drivers completely. Fixes up build failures in -next. Signed-off-by: Paul Mundt <[email protected]>
2009-05-03clocksource: sh_mtu2/cmt_register() should be static.Paul Mundt2-5/+5
Neither of these need to be exported, so just make them static. Signed-off-by: Paul Mundt <[email protected]>
2009-05-03sh: Consolidate MTU2/CMT/TMU timer platform data.Paul Mundt3-21/+21
All of the SH timers use a roughly identical structure for platform data, which presently is broken out for each block. Consolidate all of these definitions, as there is no reason for them to be broken out in the first place. Signed-off-by: Paul Mundt <[email protected]>
2009-05-03clocksource: SuperH TMU Timer driverMagnus Damm2-0/+462
This patch adds a TMU driver for the SuperH architecture. The TMU driver is a platform driver with early platform support to allow using a TMU channel as clockevent or clocksource during system bootup or later. Clocksource or clockevent can be selected. Both periodic and oneshot clockevents are supported. Signed-off-by: Magnus Damm <[email protected]> Signed-off-by: Paul Mundt <[email protected]>