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2014-04-16clocksource: sh_tmu: Split channel setup to separate functionLaurent Pinchart1-13/+23
Move the channel setup code from sh_tmu_setup to a new sh_tmu_setup_channel function and call it from sh_tmu_setup. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_tmu: Rename struct sh_tmu_priv to sh_tmu_deviceLaurent Pinchart1-34/+34
Channel data is private as well, rename priv to device to make the distrinction between the core device and the channels clearer. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_tmu: Split channel fields from sh_tmu_privLaurent Pinchart1-110/+125
Create a new sh_tmu_channel structure to hold the channel-specific field in preparation for multiple channels per device support. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_tmu: Use request_irq() instead of setup_irq()Laurent Pinchart1-14/+8
The driver claims it needs to register an interrupt handler too early for request_irq(). This might have been true in the past, but the only meaningful difference between request_irq() and setup_irq() today is an additional kzalloc() call in request_irq(). As the driver calls kmalloc() itself we know that the slab allocator is available, we can thus switch to request_irq(). Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Request IRQ for clock event device onlyLaurent Pinchart1-24/+27
Clock sources don't need an IRQ, request the IRQ only for channels used as clock event devices. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Sort headers alphabeticallyLaurent Pinchart1-10/+10
This helps locating duplicates and inserting new headers. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Remove FSF mail address from GPL noticeLaurent Pinchart1-4/+0
Do not include the paragraph about writing to the Free Software Foundation's mailing address from the sample GPL notice. The FSF has changed addresses in the past, and may do so again. Linux already includes a copy of the GPL. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Rename clock to "fck" in the non-legacy caseLaurent Pinchart1-1/+1
The sh_cmt driver gets the CMT functional clock using a connection ID of "cmt_fck". While all SH SoCs create clock lookup entries with a NULL device ID and a "cmt_fck" connection ID, the ARM SoCs use the device ID only with a NULL connection ID. This works on legacy platforms but will break on ARM with DT boot. Fix the situation by using a connection ID of "fck" in the non-legacy platform data case. Clock lookup entries will be renamed to use the device ID as well as the connection ID as platforms get moved to new platform data. The legacy code will eventually be dropped, leaving us with device ID based clock lookup, compatible with DT boot. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Add support for multiple channels per deviceLaurent Pinchart1-68/+236
CMT hardware devices can support multiple channels, with global registers and per-channel registers. The sh_cmt driver currently models the hardware with one Linux device per channel. This model makes it difficult to handle global registers in a clean way. Add support for a new model that uses one Linux device per timer with multiple channels per device. This requires changes to platform data, add new channel configuration fields. Support for the legacy model is kept and will be removed after all platforms switch to the new model. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Hardcode CMT clock source rating to 125Laurent Pinchart1-6/+6
All boards use or should use a clock source rating of 125 for the CMT, hardcode it in the driver. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Hardcode CMT clock event rating to 125Laurent Pinchart1-7/+6
All boards use or should use a clock event rating of 125 for the CMT, hardcode it in the driver. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Set cpumask to cpu_possible_maskLaurent Pinchart1-1/+1
The CMT is a global timer not restricted to a single CPU. It has a lower rating than the TMU or ARM architected timer, but is still useful on systems where the other timers are stopped during CPU sleep. When multiple timers are available the timers core selects which timer to use based on timer ratings. On SMP systems where timer broadcasting is required, one dummy timer is instantiated per CPU with a rating of 100. On those systems the CMT timer has a rating of 80, which makes the dummy timer selected by default on all CPUs. The CMT is then available, and will be used as a broadcast timer. On UP systems no dummy timer is instantiated. The CMT timer has a rating of 125 on those systems and is used directly as a clock event device for CPU0 without broadcasting. The CMT rating shouldn't depend on whether we boot a UP or SMP system. We can't raise the CMT rating to 125 on SMP systems. This would select CMT as the clock event device for CPU0 as its rating is higher than the dummy timer rating, and would leave the system without a broadcast timer. We could instead lower the rating to 80 on all systems, but that wouldn't reflect reality as ratings between 1 and 99 are documented as "unfit for real use". We should raise the rating above 99 and still have the CMT selected as a broadcast timer. This can be done by changing the cpumask from cpumask_of(0) to cpu_possible_mask. In that case the timer selection logic will prefer the previously probed and already selected dummy timer for all CPUs based on the fact that already selected per-cpu timers are preferred over new global timers, regardless of their respective ratings. This also better reflects reality, as the CMT is not tied to the boot CPU. Ideally the timer selection logic should realize that the CMT needs to be used as a broadcast timer on SMP systems as no other broadcast timer is available, regardless of the cpumask and rating. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Replace hardcoded register values with macrosLaurent Pinchart1-12/+44
Define symbolic macros for all used registers bits. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Split static information from sh_cmt_deviceLaurent Pinchart1-70/+122
Create a new sh_cmt_info structure to hold static information about the device model and reference that structure from the sh_cmt_device structure. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Allocate channels dynamicallyLaurent Pinchart1-2/+12
This prepares the driver for multi-channel support. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Replace kmalloc + memset with kzallocLaurent Pinchart1-5/+1
One kzalloc a day keeps the bugs away. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Add index to struct sh_cmt_channelLaurent Pinchart1-13/+24
Use the index when printing messages to identify the channel. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Add memory base to sh_cmt_channel structureLaurent Pinchart1-5/+8
The channel memory base is channel-specific, add it to the channel structure in preparation for support of multiple channels per device. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Rename mapbase/mapbase_str to mapbase_ch/mapbaseLaurent Pinchart1-17/+17
The mapbase variable points to the mapped base address of the channel, rename it to mapbase_sh. mapbase_str points to the mapped base address of the CMT device, rename it to mapbase. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Constify name argument to sh_cmt_register()Laurent Pinchart1-4/+4
The name argument is assigned to const structure fields only, constify it. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Split channel setup to separate functionLaurent Pinchart1-32/+47
Move the channel setup code from sh_cmt_setup to a new sh_cmt_setup_channel function and call it from sh_cmt_setup. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Rename struct sh_cmt_priv to sh_cmt_deviceLaurent Pinchart1-58/+58
Channel data is private as well, rename priv to device to make the distrinction between the core device and the channels clearer. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Split channel fields from sh_cmt_privLaurent Pinchart1-186/+199
Create a new sh_cmt_channel structure to hold the channel-specific field in preparation for multiple channels per device support. Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-16clocksource: sh_cmt: Use request_irq() instead of setup_irq()Laurent Pinchart1-7/+3
The driver claims it needs to register an interrupt handler too early for request_irq(). This might have been true in the past, but the only meaningful difference between request_irq() and setup_irq() today is an additional kzalloc() call in request_irq(). As the driver calls kmalloc() itself we know that the slab allocator is available, we can thus switch to request_irq(). Signed-off-by: Laurent Pinchart <[email protected]>
2014-04-07Merge tag 'cpu-hotplug-3.15-rc1' of ↵Linus Torvalds1-3/+8
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull CPU hotplug notifiers registration fixes from Rafael Wysocki: "The purpose of this single series of commits from Srivatsa S Bhat (with a small piece from Gautham R Shenoy) touching multiple subsystems that use CPU hotplug notifiers is to provide a way to register them that will not lead to deadlocks with CPU online/offline operations as described in the changelog of commit 93ae4f978ca7f ("CPU hotplug: Provide lockless versions of callback registration functions"). The first three commits in the series introduce the API and document it and the rest simply goes through the users of CPU hotplug notifiers and converts them to using the new method" * tag 'cpu-hotplug-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (52 commits) net/iucv/iucv.c: Fix CPU hotplug callback registration net/core/flow.c: Fix CPU hotplug callback registration mm, zswap: Fix CPU hotplug callback registration mm, vmstat: Fix CPU hotplug callback registration profile: Fix CPU hotplug callback registration trace, ring-buffer: Fix CPU hotplug callback registration xen, balloon: Fix CPU hotplug callback registration hwmon, via-cputemp: Fix CPU hotplug callback registration hwmon, coretemp: Fix CPU hotplug callback registration thermal, x86-pkg-temp: Fix CPU hotplug callback registration octeon, watchdog: Fix CPU hotplug callback registration oprofile, nmi-timer: Fix CPU hotplug callback registration intel-idle: Fix CPU hotplug callback registration clocksource, dummy-timer: Fix CPU hotplug callback registration drivers/base/topology.c: Fix CPU hotplug callback registration acpi-cpufreq: Fix CPU hotplug callback registration zsmalloc: Fix CPU hotplug callback registration scsi, fcoe: Fix CPU hotplug callback registration scsi, bnx2fc: Fix CPU hotplug callback registration scsi, bnx2i: Fix CPU hotplug callback registration ...
2014-04-05Merge tag 'cleanup-3.15' of ↵Linus Torvalds6-14/+351
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanups from Arnd Bergmann: "These cleanup patches are mainly move stuff around and should all be harmless. They are mainly split out so that other branches can be based on top to avoid conflicts. Notable changes are: - We finally remove all mach/timex.h, after CLOCK_TICK_RATE is no longer used (Uwe Kleine-König) - The Qualcomm MSM platform is split out into legacy mach-msm and new-style mach-qcom, to allow easier maintainance of the new hardware support without regressions (Kumar Gala) - A rework of some of the Kconfig logic to simplify multiplatform support (Rob Herring) - Samsung Exynos gets closer to supporting multiplatform (Sachin Kamat and others) - mach-bcm3528 gets merged into mach-bcm (Stephen Warren) - at91 gains some common clock framework support (Alexandre Belloni, Jean-Jacques Hiblot and other French people)" * tag 'cleanup-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (89 commits) ARM: hisi: select HAVE_ARM_SCU only for SMP ARM: efm32: allow uncompress debug output ARM: prima2: build reset code standalone ARM: at91: add PWM clock ARM: at91: move sam9261 SoC to common clk ARM: at91: prepare common clk transition for sam9261 SoC ARM: at91: updated the at91_dt_defconfig with support for the ADS7846 ARM: at91: dt: sam9261: Device Tree support for the at91sam9261ek ARM: at91: dt: defconfig: Added the sam9261 to the list of DT-enabled SOCs ARM: at91: dt: Add at91sam9261 dt SoC support ARM: at91: switch sam9rl to common clock framework ARM: at91/dt: define main clk frequency of at91sam9rlek ARM: at91/dt: define at91sam9rl clocks ARM: at91: prepare common clk transition for sam9rl SoCs ARM: at91: prepare sam9 dt boards transition to common clk ARM: at91: dt: sam9rl: Device Tree for the at91sam9rlek ARM: at91/defconfig: Add the sam9rl to the list of DT-enabled SOCs ARM: at91: Add at91sam9rl DT SoC support ARM: at91: prepare at91sam9rl DT transition ARM: at91/defconfig: refresh at91sam9260_9g20_defconfig ...
2014-04-05Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds1-1/+1
Pull ARM changes from Russell King: - Perf updates from Will Deacon: - Support for Qualcomm Krait processors (run perf on your phone!) - Support for Cortex-A12 (run perf stat on your FPGA!) - Support for perf_sample_event_took, allowing us to automatically decrease the sample rate if we can't handle the PMU interrupts quickly enough (run perf record on your FPGA!). - Basic uprobes support from David Long: This patch series adds basic uprobes support to ARM. It is based on patches developed earlier by Rabin Vincent. That approach of adding hooks into the kprobes instruction parsing code was not well received. This approach separates the ARM instruction parsing code in kprobes out into a separate set of functions which can be used by both kprobes and uprobes. Both kprobes and uprobes then provide their own semantic action tables to process the results of the parsing. - ARMv7M (microcontroller) updates from Uwe Kleine-König - OMAP DMA updates (recently added Vinod's Ack even though they've been sitting in linux-next for a few months) to reduce the reliance of omap-dma on the code in arch/arm. - SA11x0 changes from Dmitry Eremin-Solenikov and Alexander Shiyan - Support for Cortex-A12 CPU - Align support for ARMv6 with ARMv7 so they can cooperate better in a single zImage. - Addition of first AT_HWCAP2 feature bits for ARMv8 crypto support. - Removal of IRQ_DISABLED from various ARM files - Improved efficiency of virt_to_page() for single zImage - Patch from Ulf Hansson to permit runtime PM callbacks to be available for AMBA devices for suspend/resume as well. - Finally kill asm/system.h on ARM. * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (89 commits) dmaengine: omap-dma: more consolidation of CCR register setup dmaengine: omap-dma: move IRQ handling to omap-dma dmaengine: omap-dma: move register read/writes into omap-dma.c ARM: omap: dma: get rid of 'p' allocation and clean up ARM: omap: move dma channel allocation into plat-omap code ARM: omap: dma: get rid of errata global ARM: omap: clean up DMA register accesses ARM: omap: remove almost-const variables ARM: omap: remove references to disable_irq_lch dmaengine: omap-dma: cleanup errata 3.3 handling dmaengine: omap-dma: provide register read/write functions dmaengine: omap-dma: use cached CCR value when enabling DMA dmaengine: omap-dma: move barrier to omap_dma_start_desc() dmaengine: omap-dma: move clnk_ctrl setting to preparation functions dmaengine: omap-dma: improve efficiency loading C.SA/C.EI/C.FI registers dmaengine: omap-dma: consolidate clearing channel status register dmaengine: omap-dma: move CCR buffering disable errata out of the fast path dmaengine: omap-dma: provide register definitions dmaengine: omap-dma: consolidate setup of CCR dmaengine: omap-dma: consolidate setup of CSDP ...
2014-04-02Merge branch 'x86-nuke-platforms-for-linus' of ↵Linus Torvalds2-114/+0
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 old platform removal from Peter Anvin: "This patchset removes support for several completely obsolete platforms, where the maintainers either have completely vanished or acked the removal. For some of them it is questionable if there even exists functional specimens of the hardware" Geert Uytterhoeven apparently thought this was a April Fool's pull request ;) * 'x86-nuke-platforms-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, platforms: Remove NUMAQ x86, platforms: Remove SGI Visual Workstation x86, apic: Remove support for IBM Summit/EXA chipset x86, apic: Remove support for ia32-based Unisys ES7000
2014-04-01Merge branch 'timers-core-for-linus' of ↵Linus Torvalds10-63/+841
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer changes from Thomas Gleixner: "This assorted collection provides: - A new timer based timer broadcast feature for systems which do not provide a global accessible timer device. That allows those systems to put CPUs into deep idle states where the per cpu timer device stops. - A few NOHZ_FULL related improvements to the timer wheel - The usual updates to timer devices found in ARM SoCs - Small improvements and updates all over the place" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits) tick: Remove code duplication in tick_handle_periodic() tick: Fix spelling mistake in tick_handle_periodic() x86: hpet: Use proper destructor for delayed work workqueue: Provide destroy_delayed_work_on_stack() clocksource: CMT, MTU2, TMU and STI should depend on GENERIC_CLOCKEVENTS timer: Remove code redundancy while calling get_nohz_timer_target() hrtimer: Rearrange comments in the order struct members are declared timer: Use variable head instead of &work_list in __run_timers() clocksource: exynos_mct: silence a static checker warning arm: zynq: Add support for cpufreq arm: zynq: Don't use arm_global_timer with cpufreq clocksource/cadence_ttc: Overhaul clocksource frequency adjustment clocksource/cadence_ttc: Call clockevents_update_freq() with IRQs enabled clocksource: Add Kconfig entries for CMT, MTU2, TMU and STI sh: Remove Kconfig entries for TMU, CMT and MTU2 ARM: shmobile: Remove CMT, TMU and STI Kconfig entries clocksource: armada-370-xp: Use atomic access for shared registers clocksource: orion: Use atomic access for shared registers clocksource: timer-keystone: Delete unnecessary variable clocksource: timer-keystone: introduce clocksource driver for Keystone ...
2014-03-22clocksource: CMT, MTU2, TMU and STI should depend on GENERIC_CLOCKEVENTSGeert Uytterhoeven1-0/+4
If GENERIC_CLOCKEVENTS=n: drivers/clocksource/sh_cmt.c:54:28: error: field 'ced' has incomplete type drivers/clocksource/sh_cmt.c: In function 'sh_cmt_interrupt': drivers/clocksource/sh_cmt.c:407:23: error: 'CLOCK_EVT_MODE_ONESHOT' undeclared (first use in this function) drivers/clocksource/sh_mtu2.c:44:28: error: field 'ced' has incomplete type drivers/clocksource/sh_mtu2.c: In function 'ced_to_sh_mtu2': drivers/clocksource/sh_mtu2.c:184:70: warning: initialization from incompatible pointer type [enabled by default] drivers/clocksource/sh_mtu2.c: At top level: drivers/clocksource/sh_mtu2.c:188:16: warning: 'enum clock_event_mode' declared inside parameter list [enabled by default] drivers/clocksource/sh_tmu.c:45:28: error: field 'ced' has incomplete type drivers/clocksource/sh_tmu.c: In function 'sh_tmu_interrupt': drivers/clocksource/sh_tmu.c:207:21: error: 'CLOCK_EVT_MODE_ONESHOT' undeclared (first use in this function) drivers/clocksource/em_sti.c:44:28: error: field 'ced' has incomplete type drivers/clocksource/em_sti.c: In function 'ced_to_em_sti': drivers/clocksource/em_sti.c:251:69: warning: initialization from incompatible pointer type [enabled by default] drivers/clocksource/em_sti.c: At top level: drivers/clocksource/em_sti.c:255:16: warning: 'enum clock_event_mode' declared inside parameter list [enabled by default] Signed-off-by: Geert Uytterhoeven <[email protected]> Cc: Magnus Damm <[email protected]> Cc: Daniel Lezcano <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]>
2014-03-20clocksource, dummy-timer: Fix CPU hotplug callback registrationSrivatsa S. Bhat1-3/+8
Subsystems that want to register CPU hotplug callbacks, as well as perform initialization for the CPUs that are already online, often do it as shown below: get_online_cpus(); for_each_online_cpu(cpu) init_cpu(cpu); register_cpu_notifier(&foobar_cpu_notifier); put_online_cpus(); This is wrong, since it is prone to ABBA deadlocks involving the cpu_add_remove_lock and the cpu_hotplug.lock (when running concurrently with CPU hotplug operations). Instead, the correct and race-free way of performing the callback registration is: cpu_notifier_register_begin(); for_each_online_cpu(cpu) init_cpu(cpu); /* Note the use of the double underscored version of the API */ __register_cpu_notifier(&foobar_cpu_notifier); cpu_notifier_register_done(); Fix the clocksource dummy-timer code by using this latter form of callback registration. Cc: Daniel Lezcano <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Signed-off-by: Srivatsa S. Bhat <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2014-03-11clocksource: exynos_mct: silence a static checker warningDan Carpenter1-1/+1
My guess is we aren't going to have a 2 digit cpuid here any time soon but the static checkers don't know that and complain that the snprintf() could overflow. Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]>
2014-03-11clocksource/cadence_ttc: Overhaul clocksource frequency adjustmentSoren Brinkmann1-20/+84
The currently used method adjusting the clocksource to a changing input frequency does not work on kernels from 3.11 on. The new approach is to keep the timer frequency as constant as possible. I.e. - due to the TTC's prescaler limitations, allow frequency changes only if the frequency scales by a power of 2 - adjust the counter's divider on the fly when a frequency change occurs This limits cpufreq to scale by certain factors only. But we may keep the time base somewhat constant, so that sleep() & co keep working as expected, while supporting cpufreq. Signed-off-by: Soren Brinkmann <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]> Acked-by: Michal Simek <[email protected]>
2014-03-11clocksource/cadence_ttc: Call clockevents_update_freq() with IRQs enabledSoren Brinkmann1-15/+2
The timer core takes care of serialization and IRQs. Hence the driver is no longer required to disable interrupts when calling clockevents_update_freq(). Signed-off-by: Soren Brinkmann <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]> Acked-by: Michal Simek <[email protected]>
2014-03-11clocksource: Add Kconfig entries for CMT, MTU2, TMU and STIMagnus Damm1-0/+44
Add Kconfig entries for CMT, MTU2, TMU and STI to drivers/clocksource/Kconfig. This will allow us to get rid of duplicated entires in architecture code such as arch/sh and arch/arm/mach-shmobile. Signed-off-by: Magnus Damm <[email protected]> Signed-off-by: Wolfram Sang <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]>
2014-03-11clocksource: armada-370-xp: Use atomic access for shared registersEzequiel Garcia1-8/+4
Replace the driver-specific thread-safe shared register API by the recently introduced atomic_io_clear_set(). Signed-off-by: Ezequiel Garcia <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]>
2014-03-11clocksource: orion: Use atomic access for shared registersEzequiel Garcia1-18/+10
Replace the driver-specific thread-safe shared register API by the recently introduced atomic_io_clear_set(). Cc: Daniel Lezcano <[email protected]> Tested-by: Sebastian Hesselbarth <[email protected]> Tested-by: Willy Tarreau <[email protected]> Acked-by: Jason Cooper <[email protected]> Signed-off-by: Ezequiel Garcia <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]>
2014-03-11clocksource: timer-keystone: Delete unnecessary variableMatthias Brugger1-4/+1
Commit 438e0bff5257 added the timer-keystone device driver but make use of an unnecessary variable in the init function. This patch deletes this variable. Signed-off-by: Matthias Brugger <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]>
2014-03-11clocksource: timer-keystone: introduce clocksource driver for KeystoneIvan Khoronzhuk2-0/+245
Add broadcast clock-event device for the Keystone arch. The timer can be configured as a general-purpose 64-bit timer, dual general-purpose 32-bit timers. When configured as dual 32-bit timers, each half can operate in conjunction (chain mode) or independently (unchained mode) of each other. Reviewed-by: Stephen Boyd <[email protected]> Acked-by: Santosh shilimkar <[email protected]> Signed-off-by: Ivan Khoronzhuk <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]>
2014-03-11clocksource: sunxi: Add new compatiblesMaxime Ripard1-1/+1
The Allwinner A10 compatibles were following a slightly different compatible patterns than the rest of the SoCs for historical reasons. Add compatibles matching the other pattern to the timer driver for consistency, and keep the older one for backward compatibility. Signed-off-by: Maxime Ripard <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]>
2014-03-11ARM: u300: move timer driver to clocksourceLinus Walleij2-0/+448
Move the U300 timer driver down to the clocksource driver subsystem and keep arch/arm clean. Cc: Daniel Lezcano <[email protected]> Cc: Thomas Gleixner <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]>
2014-03-11clocksource: arch_timer: Set dynamic irq affinity on mmio clockeventStephen Boyd1-0/+1
Set the CLOCK_EVT_FEAT_DYNIRQ flag on the memory mapped clockevent so that we save power by waking up the CPU with the next event when this timer is used in broadcast mode. Signed-off-by: Stephen Boyd <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]>
2014-03-09Merge tag 'samsung-drivers' of ↵Olof Johansson1-2/+0
http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup Samsung drivers update for v3.15 from Kukjin Kim: - remove inclusion <asm/mach/time.h> from exynos_mct.c - remove inclusion <asm/mach/irq.h> from exynos-combiner.c and use calling handle_bad_irq() instead of do_bad_IRQ() * tag 'samsung-drivers' of http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: irqchip: exynos-combiner: call handle_bad_irq directly clocksource: exynos_mct: remove unwanted header file inclusion Signed-off-by: Olof Johansson <[email protected]>
2014-03-06clocksource: vf_pit_timer: use complement for sched_clock readingStefan Agner1-1/+1
Vybrids PIT register is monitonic decreasing. However, sched_clock reading needs to be monitonic increasing. Use bitwise not to get the complement of the clock register. This fixes the clock going backward. Also, the clock now starts at 0 since we load the register with the maximum value at start. Signed-off-by: Stefan Agner <[email protected]> Acked-by: Shawn Guo <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/d25af915993aec1b486be653eb86f748ddef54fe.1394057313.git.stefan@agner.ch Cc: [email protected] Signed-off-by: Thomas Gleixner <[email protected]>
2014-02-20Merge tag 'qcom-cleanup-for-3.15' of ↵Olof Johansson3-0/+334
git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into next/cleanup Merge "General cleanups for MSM/QCOM for 3.15" from Kumar Gala: Split of the multiplatform support for the Qualcomm SoCs into a mach-qcom while we leave mach-msm as legacy support. Also, some smp and device tree related cleanups. * tag 'qcom-cleanup-for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom: ARM: qcom: Rename various msm prefixed functions to qcom clocksource: qcom: split building of legacy vs multiplatform support ARM: qcom: Split Qualcomm support into legacy and multiplatform clocksource: qcom: Move clocksource code out of mach-msm ARM: msm: kill off hotplug.c ARM: msm: Remove pen_release usage ARM: dts: msm: split out msm8660 and msm8960 soc into dts include Signed-off-by: Olof Johansson <[email protected]>
2014-02-18Merge tag 'dropmachtimexh-v2' of git://git.pengutronix.de/git/ukl/linux into ↵Olof Johansson2-12/+17
next/cleanup This cleanup series gets rid of <mach/timex.h> for platforms not using ARCH_MULTIPLATFORM. (For multi-platform code it's already unused since 387798b (ARM: initial multiplatform support).) To make this work some code out of arch/arm needed to be adapted. The respective changes got acks by their maintainers to be taken via armsoc (with Andrew Morton substituting for Alessandro Zummo as rtc maintainer). Compared to the previous pull request there was another patch added that fixes a (non-critical) regression on ixp4xx. Olof Johansson asked to not squash this fix into the original commit to save him from the need to reverify the series. * tag 'dropmachtimexh-v2' of git://git.pengutronix.de/git/ukl/linux: ARM: ixp4xx: fix timer latch calculation ARM: drop <mach/timex.h> for !ARCH_MULTIPLATFORM, too ARM: rpc: stop using <mach/timex.h> ARM: ixp4xx: stop using <mach/timex.h> input: ixp4xx-beeper: don't use symbols from <mach/timex.h> ARM: at91: don't use <mach/timex.h> ARM: ep93xx: stop using mach/timex.h ARM: mmp: stop using mach/timex.h ARM: netx: stop using mach/timex.h ARM: sa1100: stop using mach/timex.h clocksource: sirf/marco+prima2: drop usage of CLOCK_TICK_RATE rtc: pxa: drop unused #define TIMER_FREQ rtc: at91sam9: include <mach/hardware.h> explicitly ARM/serial: at91: switch atmel serial to use gpiolib Signed-off-by: Olof Johansson <[email protected]>
2014-02-14clocksource: exynos_mct: remove unwanted header file inclusionPankaj Dubey1-2/+0
remove unwanted header file inclusion "asm/mach/time.h" from exynos_mct.c Signed-off-by: Pankaj Dubey <[email protected]> Signed-off-by: Kukjin Kim <[email protected]>
2014-02-11x86, apic: Remove support for IBM Summit/EXA chipsetDavid Rientjes2-114/+0
There should no longer be any IBM x440 systems or those using the Summit/EXA chipset out in the wild, so remove support for it. We've done our due diligence in reaching out to any contact information listed for this chipset and no indication was given that it should be kept around. Signed-off-by: David Rientjes <[email protected]>
2014-02-06clocksource: qcom: split building of legacy vs multiplatform supportKumar Gala1-11/+12
The majority of the clocksource code for the Qualcomm platform is shared between newer (multiplatform) and older platforms. However there is a bit of code that isn't, so only build it for the appropriate config. Acked-by: Olof Johansson <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2014-02-06clocksource: Kona: Print warning rather than panicTim Kryger1-26/+28
Since there may be other clocksources available, this driver should not trigger a panic simply because it can not determine the frequency of an external clock. This change refactors the driver to allow a warning to be printed in this case instead. Signed-off-by: Tim Kryger <[email protected]> Reviewed-by: Markus Mayer <[email protected]> Reviewed-by: Matt Porter <[email protected]> Cc: Christian Daudt <[email protected]> Cc: Daniel Lezcano <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]>
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