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| | * cpufreq: OMAP: only supports OPP libraryNishanth Menon2011-11-081-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | OMAP2 is the only family using clk_[init|exit]_cpufreq_table, however, the cpufreq code does not currently use clk_init_cpufreq_table. As a result, it is unusuable for OMAP2 and only usable only on platforms using OPP library. Remove the unbalanced clk_exit_cpufreq_table(). Any platforms where OPPs are not availble will fail on init because a freq table will not be properly initialized. Signed-off-by: Nishanth Menon <nm@ti.com> [khilman@ti.com: changelog edits, and graceful failure mode changes] Signed-off-by: Kevin Hilman <khilman@ti.com>
| | * cpufreq: OMAP: dont support !freq_tableNishanth Menon2011-11-081-34/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | OMAP2+ all have frequency tables, hence the hacks we had for older silicon do not need to be carried forward. As part of this change, use cpufreq_frequency_table_target to find the best match for frequency requested. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
| | * cpufreq: OMAP: deny initialization if no mpudevNishanth Menon2011-11-081-7/+8
| | | | | | | | | | | | | | | | | | | | | | | | if we do not have mpu_dev we normally fail in cpu_init. It is better to fail driver registration if the devices are not available. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
| | * cpufreq: OMAP: move clk name decision to initNishanth Menon2011-11-081-7/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clk name does'nt need to dynamically detected during clk init. move them off to driver initialization, if we dont have a clk name, there is no point in registering the driver anyways. The actual clk get and put is left at cpu_init and exit functions. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
| | * cpufreq: OMAP: notify even with bad boot frequencyColin Cross2011-11-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes, bootloaders starts up with a frequency which is not in the OPP table. At cpu_init, policy->cur contains the frequency we pick at boot. It is possible that system might have fixed it's boot frequency later on as part of power initialization. After this condition, the first call to omap_target results in the following: omap_getspeed(actual device frequency) != policy->cur(frequency that cpufreq thinks that the system is at), and it is possible that freqs.old == freqs.new (because the governor requested a scale down). We exit without triggering the notifiers in the current code, which does'nt let code which depends on cpufreq_notify_transition to have accurate information as to what the system frequency is. Instead, we do a normal transition if policy->cur is wrong, then, freqs.old will be the actual cpu frequency, freqs.new will be the actual new cpu frequency and all required notifiers have the accurate information. Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Colin Cross <ccross@google.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
| | * cpufreq: OMAP: Enable all CPUs in shared policy maskTodd Poynor2011-11-081-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable all CPUs in the shared policy in the CPU init callback. Otherwise, the governor CPUFREQ_GOV_START event is invoked with a policy that only includes the first CPU, leaving other CPUs uninitialized by the governor. Signed-off-by: Todd Poynor <toddpoynor@google.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
| | * cpufreq: OMAP: Add SMP support for OMAP4+Russell King2011-11-081-10/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On OMAP SMP configuartion, both processors share the voltage and clock. So both CPUs needs to be scaled together and hence needs software co-ordination. Also, update lpj with reference value to avoid progressive error. Adjust _both_ the per-cpu loops_per_jiffy and global lpj. Calibrate them with with reference to the initial values to avoid a progressively bigger and bigger error in the value over time. While at this, re-use the notifiers for UP/SMP since on UP machine or UP_ON_SMP policy->cpus mask would contain only the boot CPU. Based on initial SMP support by Santosh Shilimkar. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> [khilman@ti.com: due to overlap/rework, combined original Santosh patch and Russell's rework] Signed-off-by: Kevin Hilman <khilman@ti.com>
| | * cpufreq: OMAP: cleanup for multi-SoC support, move into drivers/cpufreqSantosh Shilimkar2011-11-082-0/+189
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move OMAP cpufreq driver from arch/arm/mach-omap2 into drivers/cpufreq, along with a few cleanups: - generalize support for better handling of different SoCs in the OMAP - use OPP layer instead of OMAP clock internals for frequency table init Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> [khilman@ti.com: move to drivers] Signed-off-by: Kevin Hilman <khilman@ti.com>
* | | Merge branch 'driver-core-next' of ↵Linus Torvalds2012-01-072-41/+39
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core * 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (73 commits) arm: fix up some samsung merge sysdev conversion problems firmware: Fix an oops on reading fw_priv->fw in sysfs loading file Drivers:hv: Fix a bug in vmbus_driver_unregister() driver core: remove __must_check from device_create_file debugfs: add missing #ifdef HAS_IOMEM arm: time.h: remove device.h #include driver-core: remove sysdev.h usage. clockevents: remove sysdev.h arm: convert sysdev_class to a regular subsystem arm: leds: convert sysdev_class to a regular subsystem kobject: remove kset_find_obj_hinted() m86k: gpio - convert sysdev_class to a regular subsystem mips: txx9_sram - convert sysdev_class to a regular subsystem mips: 7segled - convert sysdev_class to a regular subsystem sh: dma - convert sysdev_class to a regular subsystem sh: intc - convert sysdev_class to a regular subsystem power: suspend - convert sysdev_class to a regular subsystem power: qe_ic - convert sysdev_class to a regular subsystem power: cmm - convert sysdev_class to a regular subsystem s390: time - convert sysdev_class to a regular subsystem ... Fix up conflicts with 'struct sysdev' removal from various platform drivers that got changed: - arch/arm/mach-exynos/cpu.c - arch/arm/mach-exynos/irq-eint.c - arch/arm/mach-s3c64xx/common.c - arch/arm/mach-s3c64xx/cpu.c - arch/arm/mach-s5p64x0/cpu.c - arch/arm/mach-s5pv210/common.c - arch/arm/plat-samsung/include/plat/cpu.h - arch/powerpc/kernel/sysfs.c and fix up cpu_is_hotpluggable() as per Greg in include/linux/cpu.h
| * \ \ Merge branch 'driver-core-next' into Linux 3.2Greg Kroah-Hartman2012-01-062-41/+39
| |\ \ \ | | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This resolves the conflict in the arch/arm/mach-s3c64xx/s3c6400.c file, and it fixes the build error in the arch/x86/kernel/microcode_core.c file, that the merge did not catch. The microcode_core.c patch was provided by Stephen Rothwell <sfr@canb.auug.org.au> who was invaluable in the merge issues involved with the large sysdev removal process in the driver-core tree. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * | cpu: convert 'cpu' and 'machinecheck' sysdev_class to a regular subsystemKay Sievers2011-12-212-41/+39
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This moves the 'cpu sysdev_class' over to a regular 'cpu' subsystem and converts the devices to regular devices. The sysdev drivers are implemented as subsystem interfaces now. After all sysdev classes are ported to regular driver core entities, the sysdev implementation will be entirely removed from the kernel. Userspace relies on events and generic sysfs subsystem infrastructure from sysdev devices, which are made available with this conversion. Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Borislav Petkov <bp@amd64.org> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Cc: Len Brown <lenb@kernel.org> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Dave Jones <davej@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | Merge branch 'sched/core' of ↵Martin Schwidefsky2011-12-192-42/+40
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into cputime-tip Conflicts: drivers/cpufreq/cpufreq_conservative.c drivers/cpufreq/cpufreq_ondemand.c drivers/macintosh/rack-meter.c fs/proc/stat.c fs/proc/uptime.c kernel/sched/core.c
| * | | sched/accounting: Change cpustat fields to an arrayGlauber Costa2011-12-062-40/+36
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes fields in cpustat from a structure, to an u64 array. Math gets easier, and the code is more flexible. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Paul Tuner <pjt@google.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1322498719-2255-2-git-send-email-glommer@parallels.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* / / [S390] cputime: add sparse checking and cleanupMartin Schwidefsky2011-12-153-35/+32
|/ / | | | | | | | | | | | | | | Make cputime_t and cputime64_t nocast to enable sparse checking to detect incorrect use of cputime. Drop the cputime macros for simple scalar operations. The conversion macros are still needed. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* / [CPUFREQ] db8500: fix build error due to undeclared i variableAxel Lin2011-11-111-3/+3
|/ | | | | | | | | | | | | | | | | | | | | | The variable i is removed by commit ded8433 "[CPUFREQ] db8500: remove unneeded for loop iteration over freq_table", but current code to print available frequencies still uses the i variable. Thus add the i variable back to fix below buld error: CC drivers/cpufreq/db8500-cpufreq.o drivers/cpufreq/db8500-cpufreq.c: In function 'db8500_cpufreq_init': drivers/cpufreq/db8500-cpufreq.c:123: error: 'i' undeclared (first use in this function) drivers/cpufreq/db8500-cpufreq.c:123: error: (Each undeclared identifier is reported only once drivers/cpufreq/db8500-cpufreq.c:123: error: for each function it appears in.) make[2]: *** [drivers/cpufreq/db8500-cpufreq.o] Error 1 make[1]: *** [drivers/cpufreq] Error 2 make: *** [drivers] Error 2 This patch also fixes using uninitialized i variable as array index. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Dave Jones <davej@redhat.com>
* Merge branch 'modsplit-Oct31_2011' of ↵Linus Torvalds2011-11-062-0/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux * 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include <linux/module.h> acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include <linux/module.h> net: sch_generic remove redundant use of <linux/module.h> net: inet_timewait_sock doesnt need <linux/module.h> ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h
| * cpufreq: Fix build of s3c64xx cpufreq driver for header changeMark Brown2011-10-311-0/+1
| | | | | | | | | | | | | | | | The header change has removed an implicit include of module.h, breaking the build due to the use of THIS_MODULE. Fix that. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
| * cpufreq: cpufreq_stats.c is a module, and should include module.hPaul Gortmaker2011-10-311-0/+1
| | | | | | | | | | | | | | So that we can clean up the header files and not be relying on implicit includes from device.h ---> module.h Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* | Merge branch 'next' of git://github.com/kernelslacker/cpufreqLinus Torvalds2011-11-033-32/+268
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'next' of git://github.com/kernelslacker/cpufreq: [CPUFREQ] db8500: support all frequencies [CPUFREQ] db8500: remove unneeded for loop iteration over freq_table [CPUFREQ] ARM Exynos4210 PM/Suspend compatibility with different bootloaders [CPUFREQ] ARM: ux500: send cpufreq notification for all cpus [CPUFREQ] e_powersaver: Allow user to lower maximum voltage [CPUFREQ] e_powersaver: Check BIOS limit for CPU frequency [CPUFREQ] e_powersaver: Additional checks [CPUFREQ] exynos4210: Show list of available frequencies
| * | [CPUFREQ] db8500: support all frequenciesLinus Walleij2011-10-261-8/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for the 200 MHz frequency mode of the DB8500 SoC, and prints the available frequencies at init time. Cc: Vincent Guittot <vincent.guittot@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] db8500: remove unneeded for loop iteration over freq_tableAxel Lin2011-10-261-5/+0
| | | | | | | | | | | | | | | | | | | | | Don't know why to do the loop iteration here. It looks unneeded. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] ARM Exynos4210 PM/Suspend compatibility with different bootloadersMyungJoo Ham2011-10-261-4/+102
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have various bootloaders for Exynos4210 machines. Some of they set the ARM core frequency at boot time even when the boot is a resume from suspend-to-RAM. Such changes may create inconsistency in the data of CPUFREQ driver and have incurred hang issues with suspend-to-RAM. This patch enables to save and restore CPU frequencies with pm-notifier and sets the frequency at the initial (boot-time) value so that there wouldn't be any inconsistency between bootloader and kernel. This patch does not use CPUFREQ's suspend/resume callbacks because they are syscore-ops, which do not allow to use mutex that is being used by regulators that are used by the target function. This also prevents any CPUFREQ transitions during suspend-resume context, which could be dangerous at noirq-context along with regulator framework. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] ARM: ux500: send cpufreq notification for all cpusVincent Guittot2011-10-261-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The same clock is used for all cpus so we must notify the frequency change for each one in order to update the configuration of all twd clockevents. change since V1: * use policy->cpus instead of cpu_online_mask Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] e_powersaver: Allow user to lower maximum voltageRafał Bilski2011-10-261-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add new module option "set_max_voltage". One of the lessons learned from Adaptive Powersaver is that voltage values returned by processor are for worst case scenario. But required voltage is changing with CPU temperature. And even processors produced in the same batch can have different minimum voltage necessary for stable work at specified frequency. On Elonex Webbook, once system starts, temperature never drops below 48 deg. C. Loading module after systems start allows user to lower CPU voltage and still have stable system. Sadly C7 doesn't allow code to set frequency or voltage from outside limits. If you ask it to set voltage lower then minimum it will ignore you. Thats why it isn't possible to change minimum voltage for minimum frequency too. Changing maximum voltage on Elonex Webbook leads to very good results. Looks like VIA C7 1.6GHz 1084mV can safetly run at 892mV. This means 83% of orginal value. If same percentage applies to power generated it means 12.5W in the place of 15W. Not much, but it is better then nothing. Only C7-M makes it possible. If voltage is too low by 16mV or more you will experience kernel panic. If voltage is too low by 32mV or more you will experience system freeze. Signed-off-by: Rafał Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] e_powersaver: Check BIOS limit for CPU frequencyRafał Bilski2011-10-261-0/+76
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Call ACPI function to get BIOS limit for CPU frequency. Fail if processor would like to run at higher frequency. Allow user to ignore BIOS limit. eps: Detected VIA Model D C7-M eps: Current voltage = 1084mV eps: Current multiplier = 16 eps: Highest voltage = 1084mV eps: Highest multiplier = 16 eps: Lowest voltage = 844mV eps: Lowest multiplier = 4 eps: ACPI limit 1.60GHz Signed-off-by: Rafał Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] e_powersaver: Additional checksRafał Bilski2011-10-261-11/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some systems are using 1,2Ghz@844mV processors running at 600MHz@796mV. Try to detect such systems and don't touch anything on it. If CPU doesn't have P-States in BIOS it should run at maximum frequency. Allow user to bypass checks by means of two new options. Don't set frequency to maximum on module unloading to avoid bada boom. It is also possible that some processors may have incorrect values in min/max registers caused by error in manufacturing process. Probably it would be BIOS job to set them to right frequency and P-States tables would have correct values inside. Two additional sanity checks for voltage. Signed-off-by: Rafał Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] exynos4210: Show list of available frequenciesDonggeun Kim2011-10-261-1/+22
| |/ | | | | | | | | | | | | | | | | | | This patch enables 'scaling_available_frequencies' attribute showing list of available frequencies. Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: KyungMin Park <kyungmin.park@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | Merge branch 'for-next' of git://git.infradead.org/users/sameo/mfd-2.6Linus Torvalds2011-11-031-1/+1
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-next' of git://git.infradead.org/users/sameo/mfd-2.6: (80 commits) mfd: Fix missing abx500 header file updates mfd: Add missing <linux/io.h> include to intel_msic x86, mrst: add platform support for MSIC MFD driver mfd: Expose TurnOnStatus in ab8500 sysfs mfd: Remove support for early drop ab8500 chip mfd: Add support for ab8500 v3.3 mfd: Add ab8500 interrupt disable hook mfd: Convert db8500-prcmu panic() into pr_crit() mfd: Refactor db8500-prcmu request_clock() function mfd: Rename db8500-prcmu init function mfd: Fix db5500-prcmu defines mfd: db8500-prcmu voltage domain consumers additions mfd: db8500-prcmu reset code retrieval mfd: db8500-prcmu tweak for modem wakeup mfd: Add db8500-pcmu watchdog accessor functions for watchdog mfd: hwacc power state db8500-prcmu accessor mfd: Add db8500-prcmu accessors for PLL and SGA clock mfd: Move to the new db500 PRCMU API mfd: Create a common interface for dbx500 PRCMU drivers mfd: Initialize DB8500 PRCMU regs ... Fix up trivial conflicts in arch/arm/mach-imx/mach-mx31moboard.c arch/arm/mach-omap2/board-omap3beagle.c arch/arm/mach-u300/include/mach/irqs.h drivers/mfd/wm831x-spi.c
| * mfd: Move to the new db500 PRCMU APIMattias Nilsson2011-10-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we have a shared API between the DB8500 and DB5500 PRCMU's, switch to using this neutral API instead. We delete the parts of db8500-prcmu.h that is now PRCMU-neutral, and calls will be diverted to respective driver. Common registers are in dbx500-prcmu-regs.h and common accessors and defines in <linux/mfd/dbx500-prcmu.h> This way we get a a lot more abstraction and code reuse. Signed-off-by: Mattias Nilsson <mattias.i.nilsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* | Merge branch 'timers-core-for-linus' of ↵Linus Torvalds2011-10-262-2/+6
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits) time, s390: Get rid of compile warning dw_apb_timer: constify clocksource name time: Cleanup old CONFIG_GENERIC_TIME references that snuck in time: Change jiffies_to_clock_t() argument type to unsigned long alarmtimers: Fix error handling clocksource: Make watchdog reset lockless posix-cpu-timers: Cure SMP accounting oddities s390: Use direct ktime path for s390 clockevent device clockevents: Add direct ktime programming function clockevents: Make minimum delay adjustments configurable nohz: Remove "Switched to NOHz mode" debugging messages proc: Consider NO_HZ when printing idle and iowait times nohz: Make idle/iowait counter update conditional nohz: Fix update_ts_time_stat idle accounting cputime: Clean up cputime_to_usecs and usecs_to_cputime macros alarmtimers: Rework RTC device selection using class interface alarmtimers: Add try_to_cancel functionality alarmtimers: Add more refined alarm state tracking alarmtimers: Remove period from alarm structure alarmtimers: Remove interval cap limit hack ...
| * | nohz: Fix update_ts_time_stat idle accountingMichal Hocko2011-09-082-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | update_ts_time_stat currently updates idle time even if we are in iowait loop at the moment. The only real users of the idle counter (via get_cpu_idle_time_us) are CPU governors and they expect to get cumulative time for both idle and iowait times. The value (idle_sleeptime) is also printed to userspace by print_cpu but it prints both idle and iowait times so the idle part is misleading. Let's clean this up and fix update_ts_time_stat to account both counters properly and update consumers of idle to consider iowait time as well. If we do this we might use get_cpu_{idle,iowait}_time_us from other contexts as well and we will get expected values. Signed-off-by: Michal Hocko <mhocko@suse.cz> Cc: Dave Jones <davej@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Alexey Dobriyan <adobriyan@gmail.com> Link: http://lkml.kernel.org/r/e9c909c221a8da402c4da07e4cd968c3218f8eb1.1314172057.git.mhocko@suse.cz Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | | Merge branch 'master' into for-nextJiri Kosina2011-09-152-0/+23
|\ \ \ | | |/ | |/| | | | | | | Fast-forward merge with Linus to be able to merge patches based on more recent version of the tree.
| * | drivers/cpufreq/pcc-cpufreq.c: avoid NULL pointer dereferenceNaga Chumbalkar2011-09-141-0/+3
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | per_cpu(processors, n) can be NULL, resulting in: Loading CPUFreq modules[ 437.661360] BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffffa0434314>] pcc_cpufreq_cpu_init+0x74/0x220 [pcc_cpufreq] It's better to avoid the oops by failing the driver, and allowing the system to boot. Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com> Cc: Dave Jones <davej@codemonkey.org.uk> Cc: Len Brown <lenb@kernel.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * Merge branch 'drm-core-next' of ↵Linus Torvalds2011-07-261-0/+20
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (135 commits) drm/radeon/kms: fix DP training for DPEncoderService revision bigger than 1.1 drm/radeon/kms: add missing vddci setting on NI+ drm/radeon: Add a rmb() in IH processing drm/radeon: ATOM Endian fix for atombios_crtc_program_pll() drm/radeon: Fix the definition of RADEON_BUF_SWAP_32BIT drm/radeon: Do an MMIO read on interrupts when not uisng MSIs drm/radeon: Writeback endian fixes drm/radeon: Remove a bunch of useless _iomem casts drm/gem: add support for private objects DRM: clean up and document parsing of video= parameter DRM: Radeon: Fix section mismatch. drm: really make debug levels match in edid failure code drm/radeon/kms: fix i2c map for rv250/280 drm/nouveau/gr: disable fifo access and idle before suspend ctx unload drm/nouveau: pass flag to engine fini() method on suspend drm/nouveau: replace nv04_graph_fifo_access() use with direct reg bashing drm/nv40/gr: rewrite/split context takedown functions drm/nouveau: detect disabled device in irq handler and return IRQ_NONE drm/nouveau: ignore connector type when deciding digital/analog on DVI-I drm/nouveau: Add a quirk for Gigabyte NX86T ...
| | * Merge branch 'drm-intel-next' of ↵Dave Airlie2011-07-141-0/+20
| | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ssh://master.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6 into drm-core-next * 'drm-intel-next' of ssh://master.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6: (52 commits) drm/i915: provide module parameter description drm/i915: add module parameter compiler hints drm/i915/bios: Avoid temporary allocation whilst searching for downclock drm/i915: Cache GT fifo count for SandyBridge i915: Fix opregion notifications drm/i915: TVDAC_STATE_CHG does not indicate successful load-detect drm/i915: Select correct pipe during TV detect drm/i915/ringbuffer: Idling requires waiting for the ring to be empty Revert "drm/i915: enable rc6 by default" drm/i915: Clean up i915_driver_load failure path drm/i915: Enable i915 frame buffer compression by default drm/i915: Share the common work of disabling active FBC before updating drm/i915: Perform intel_enable_fbc() from a delayed task drm/i915: Disable FBC across page-flipping drm/i915: Set persistent-mode for ILK/SNB framebuffer compression drm/i915: Use of a CPU fence is mandatory to update FBC regions upon CPU writes drm/i915: Remove vestigial pitch from post-gen2 FBC control routines drm/i915: Replace direct calls to vfunc.disable_fbc with intel_disable_fbc() drm/i915: Only export the generic intel_disable_fbc() interface drm/i915: Enable GPU reset on Ivybridge. ...
| | | * cpufreq: expose a cpufreq_quick_get_max routineJesse Barnes2011-06-281-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows drivers and other code to get the max reported CPU frequency. Initial use is for scaling ring frequency with GPU frequency in the i915 driver. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Keith Packard <keithp@keithp.com>
* | | | Fix documentation and comment typo 'no_hz'Paul Bolle2011-08-081-1/+1
|/ / / | | | | | | | | | | | | | | | Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Len Brown <len.brown@intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | Merge branch 'next' of ↵Linus Torvalds2011-07-254-0/+325
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (99 commits) drivers/virt: add missing linux/interrupt.h to fsl_hypervisor.c powerpc/85xx: fix mpic configuration in CAMP mode powerpc: Copy back TIF flags on return from softirq stack powerpc/64: Make server perfmon only built on ppc64 server devices powerpc/pseries: Fix hvc_vio.c build due to recent changes powerpc: Exporting boot_cpuid_phys powerpc: Add CFAR to oops output hvc_console: Add kdb support powerpc/pseries: Fix hvterm_raw_get_chars to accept < 16 chars, fixing xmon powerpc/irq: Quieten irq mapping printks powerpc: Enable lockup and hung task detectors in pseries and ppc64 defeconfigs powerpc: Add mpt2sas driver to pseries and ppc64 defconfig powerpc: Disable IRQs off tracer in ppc64 defconfig powerpc: Sync pseries and ppc64 defconfigs powerpc/pseries/hvconsole: Fix dropped console output hvc_console: Improve tty/console put_chars handling powerpc/kdump: Fix timeout in crash_kexec_wait_realmode powerpc/mm: Fix output of total_ram. powerpc/cpufreq: Add cpufreq driver for Momentum Maple boards powerpc: Correct annotations of pmu registration functions ... Fix up trivial Kconfig/Makefile conflicts in arch/powerpc, drivers, and drivers/cpufreq
| * | | powerpc/cpufreq: Add cpufreq driver for Momentum Maple boardsDmitry Eremin-Solenikov2011-07-194-0/+326
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | Add simple cpufreq driver for Maple-based boards (ppc970fx evaluation kit and others). Driver is based on a cpufreq driver for 64-bit powermac boxes with all pmac-dependant features removed and simple cleanup applied. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | | [CPUFREQ] s5pv210: make needlessly global symbols staticAxel Lin2011-07-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following symbols are needlessly defined global: s5pv210_verify_speed s5pv210_getspeed Make them static. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] exynos4210: make needlessly global symbols staticAxel Lin2011-07-131-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following symbols are needlessly defined global: exynos4_verify_speed exynos4_getspeed exynos4_set_clkdiv Make them static. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] S3C6410: Add some lower frequencies for 800MHz base clock operationMark Brown2011-07-131-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By extension from the 667MHz based clocks currently supported add 100MHz and 200MHz operating points. Due to a lack of documentation these have not been confirmed as supported but by extension from the existing frequencies they should be OK, and I've given them quite a bit of runtime testing. The major risk is synchronization with the non-ARM clocks but as we can't currently scale the ARM PLL the risk should be relatively low. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] S5PV210: Add reboot notifier to prevent system hangHuisung Kang2011-07-131-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When system reboot, the CPUFREQ level should be 800MHz to prevent system lockup. Signed-off-by: Huisung Kang <hs1218.kang@samsung.com> Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] S5PV210: Adjust udelay prior to voltage scaling downTodd Poynor2011-07-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Voltage scaling accesses the MAX8998 regulators over bit-banged I2C with lots of udelays. In the case of decreasing CPU speed, the number of loops per us for udelay needs to be adjusted prior to decreasing voltage to avoid delaying for up to 10X too long. Signed-off-by: Todd Poynor <toddpoynor@google.com> Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] S5PV210: Lock a mutex while changing the cpu frequencyArve Hjønnevåg2011-07-131-9/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Without this lock the call to change the frequency for suspend could switch to a new frequency while another thread was still changing the cpu voltage. Signed-off-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] S5PV210: Add pm_notifier to prevent system unstableHuisung Kang2011-07-131-0/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | Minimum 800MHz is needed to enter/exit suspend mode due to voltage mismatch. Signed-off-by: Huisung Kang <hs1218.kang@samsung.com> Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] S5PV210: Add arm/int voltage control supportJonghwan Choi2011-07-131-3/+68
| | | | | | | | | | | | | | | | | | Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] S5PV210: Add additional symantics for "relation" in cpufreq with pmHuisung Kang2011-07-131-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Relation has an additional symantics other than standard. s5pv310_target funtion have below additional relation. - DISABLE_FURTHER_CPUFREQ : disable further access to target - ENABLE_FURTHER_CPUFRER : enable access to target Signed-off-by: Huisung Kang <hs1218.kang@samsung.com> Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] S3C64xx: Notify transition complete as soon as frequency changedMark Brown2011-07-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The CPUFREQ_POSTCHANGE notification is used to update things that depend on the system clock rates. Since this may include the interfaces used to talk to the regulators do the notification before we try to update regulators to reflect lowered system clock rate. The voltage scaling is just a power optimisation and may not happen at all so there's no concern about it not having completed. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] S3C6410: Support 800MHz operation in cpufreqMark Brown2011-07-131-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At least some newer S3C6410 silicon supports operation up to 800MHz rather than just 667MHz. Unfortunately I don't have access to any of documentation of this other than some running systems, add a new cpufreq table entry for this based on the behaviour of those systems. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-07 02:42:31 +0000