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2015-08-10clockevents/drivers/meson6: Migrate to new 'set-state' interfaceViresh Kumar1-23/+27
Migrate meson6 driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Carlo Caione <carlo@caione.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Carlo Caione <carlo@caione.org>
2015-08-10clockevents/drivers/i8253: Migrate to new 'set-state' interfaceViresh Kumar1-39/+38
Migrate i8253 driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-08-10clockevents/drivers/fsl_ftm: Migrate to new 'set-state' interfaceViresh Kumar1-18/+17
Migrate fsl_ftm driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-08-10clockevents/drivers/dw_apb: Migrate to new 'set-state' interfaceViresh Kumar1-62/+81
Migrate dw_apb driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Jacob Pan <jacob.jun.pan@linux.intel.com> Cc: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-08-10clockevents/drivers/dummy_timer: Migrate to new 'set-state' interfaceViresh Kumar1-10/+0
Migrate dummy_timer driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. We weren't doing anything in the ->set_mode() callback. So, this patch doesn't provide any set-state callbacks. Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Viresh Kumae <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-08-10clockevents/drivers/clps711x: Migrate to new 'set-state' interfaceViresh Kumar1-6/+0
Migrate clps711x driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. We weren't doing anything in the ->set_mode() callback. So, this patch doesn't provide any set-state callbacks. Cc: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-08-10clockevents/drivers/cadence_ttc: Migrate to new 'set-state' interfaceViresh Kumar1-27/+32
Migrate cadence_ttc driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Michal Simek <michal.simek@xilinx.com> Cc: Sören Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Tested-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
2015-08-10clockevents/drivers/asm9260: Migrate to new 'set-state' interfaceViresh Kumar1-25/+39
Migrate asm9260 driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. As a default the timer was stopped when entering in the set_mode(RESUME) function, now this is done explicitly with the new API. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-08-10clockevents/drivers/sh_cmt: Remove obsolete sh-cmt-48-gen2 platform_device_id entryGeert Uytterhoeven1-1/+0
Since commit 914d7d148411997c ("ARM: shmobile: r8a73a4: Remove legacy code"), all former users of the "sh-cmt-48-gen2" platform device name are only supported in generic DT-only ARM multi-platform builds. The driver doesn't need to match platform devices by name anymore, hence remove the corresponding platform_device_id entry. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au>
2015-08-10clockevents/drivers/sh_cmt: Remove obsolete sh-cmt-32-fast platform_device_id entryGeert Uytterhoeven1-1/+0
Since commit 59b89af1d5551c12 ("ARM: shmobile: sh7372: Remove Legacy C SoC code"), there are no more users left of the "sh-cmt-32-fast" platform device name. Hence remove the corresponding platform_device_id entry from the driver. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au>
2015-08-10clockevents/drivers/exynos_mct: Remove unneeded container_of()Alexey Klimov1-8/+8
Patch removes unneeded container_of() macro in exynos4_local_timer_setup(). Instead let's pass mevt pointer to setup and stop functions from exynos4_mct_cpu_notify() and let them get evt pointer. Tested on odroid-xu3. Signed-off-by: Alexey Klimov <klimov.linux@gmail.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2015-08-10clockevents/drivers/Kconfig: Replace USE_OF with OFAntonio Borneo1-1/+1
USE_OF is used as intermediate Kconfig option by few arch's (ARM, MIPS, Xtensa); in all these cases it implies setting option OF too. Replace the only instance of USE_OF in clocksource with OF. Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-08-08clockevents/drivers/sh_cmt: Only perform clocksource suspend/resume if enabledGeert Uytterhoeven1-0/+6
Currently the sh_cmt clocksource timer is disabled or enabled unconditionally on clocksource suspend resp. resume, even if a better clocksource is present (e.g. arch_sys_counter) and the sh_cmt clocksource is not enabled. As sh_cmt is a syscore device when its timer is enabled, this may lead to a genpd.prepared_count imbalance in the presence of PM Domains, which may cause a lock-up during reboot after s2ram. During suspend: - pm_genpd_prepare() is called for all non-syscore devices (incl. sh_cmt), increasing genpd.prepared_count for each device, - clocksource.suspend() is called for all clocksource devices, - sh_cmt_clocksource_suspend() calls sh_cmt_stop(), which is a no-op as the clocksource was not enabled. During resume: - clocksource.resume() is called for all clocksource devices, - sh_cmt_clocksource_resume() calls sh_cmt_start(), which enables the clocksource timer, and turns sh_cmt into a syscore device, - pm_genpd_complete() is called for all non-syscore devices (excl. sh_cmt now!), decreasing genpd.prepared_count for each device but sh_cmt. Now genpd.prepared_count of the PM Domain containing sh_cmt is still 1 instead of zero. On subsequent suspend/resume cycles, sh_cmt is still a syscore device, hence it's skipped for pm_genpd_{prepare,complete}(), keeping the imbalance of genpd.prepared_count at 1. During reboot: - platform_drv_shutdown() is called for any platform device that has a driver with a .shutdown() method (only rcar-dmac on R-Car Gen2), - platform_drv_shutdown() calls dev_pm_domain_detach(), which calls genpd_dev_pm_detach(), - genpd_dev_pm_detach() keeps calling pm_genpd_remove_device() until it doesn't return -EAGAIN[*], - If the device is part of the same PM Domain as sh_cmt, pm_genpd_remove_device() always fails with -EAGAIN due to genpd.prepared_count > 0. - Infinite loop in genpd_dev_pm_detach()[*]. [*] Commit 93af5e9354432828 ("PM / Domains: Avoid infinite loops in attach/detach code") already limited the number of loop iterations, avoiding the lock-up. To fix this, only disable or enable the clocksource timer on clocksource suspend resp. resume if the clocksource was enabled. This was tested on r8a7791/koelsch with the CPG Clock Domain: - using arch_sys_counter as the clocksource, which is the default, and which showed the problem, - using sh_cmt as a clocksource ("echo ffca0000.timer > \ /sys/devices/system/clocksource/clocksource0/current_clocksource"), which behaves the same as before. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1438875126-12596-2-git-send-email-daniel.lezcano@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-06clockevents/drivers/em_sti: Migrate to new 'set-state' interfaceViresh Kumar1-25/+14
Migrate em_sti driver to the new 'set-state' interface provided by the clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. NOTE: This also drops a special check: if (old_mode == CLOCK_EVT_MODE_ONESHOT) em_sti_stop(p, USER_CLOCKEVENT); as it doesn't look like that important. This driver only supports ONESHOT and we can only move only to SHUTDOWN from ONESHOT and. Also on second call (on shutdown), em_sti_stop() would return without disabling the device again. Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-08-06clockevents/drivers/cs5535: Migrate to new 'set-state' interfaceViresh Kumar1-10/+14
Migrate cs5535 driver to the new 'set-state' interface provided by the clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Andres Salomon <dilinger@queued.net> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-08-06clockevents/drivers/bcm_kona: Migrate to new 'set-state' interfaceViresh Kumar1-12/+5
Migrate bcm_kona driver to the new 'set-state' interface provided by the clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Oneshot callback isn't required as it was empty. Acked-by: Ray Jui <rjui@broadcom.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: bcm-kernel-feedback-list@broadcom.com Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-08-06clockevents/drivers/bcm2835: Migrate to new 'set-state' interfaceViresh Kumar1-16/+0
Migrate bcm2835 driver to the new 'set-state' interface provided by the clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. We weren't doing anything in the ->set_mode() callback. So, this patch doesn't provide any set-state callbacks. Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Tested-by: Stephen Warren <swarren@wwwdotorg.org> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Lee Jones <lee@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-08-06clockevents/drivers/arm_global_timer: Migrate to new 'set-state' interfaceViresh Kumar1-20/+17
Migrate arm_global_timer driver to the new 'set-state' interface provided by the clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Srinivas Kandagatla <srinivas.kandagatla@gmail.com> Cc: Maxime Coquelin <maxime.coquelin@st.com> Cc: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-08-06clockevents/drivers/arm_arch_timer: Migrate to new 'set-state' interfaceViresh Kumar1-30/+22
Migrate arm_arch_timer driver to the new 'set-state' interface provided by the clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-07-23clocksource: sti: Provide 'use timer as sched clock' capabilityLee Jones1-0/+8
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-07-23clocksource: sti: Provide support for the ST LPC Clocksource IPLee Jones3-0/+132
This IP is shared with Watchdog and RTC functionality. All 3 of these devices are mutually exclusive from one another i.e. Only 1 IP can be used at any given time. We use the device-driver model combined with a DT 'mode' property to enforce this. The ST LPC Clocksource IP can be used as the system (tick) timer. Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-07-20clocksource: cadence_ttc: Remove clk-provider.h includeStephen Boyd1-1/+0
This file doesn't use the clk provider APIs. Remove the include. Cc: Michal Simek <michal.simek@xilinx.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-07clocksource/imx: Define clocksource for mx27Philippe Reynes1-0/+1
The rework of the imx clocksource driver missed to add an entry for imx27 which results in a boot failure on those machines. Add the proper CLOCKSOURCE_OF_DECLARE() entry for imx27 and map it to the imx21 init. Fixes: bef11c881ba5 'ARM: imx: initialize gpt device type for DT boot' Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: daniel.lezcano@linaro.org Cc: fabio.estevam@freescale.com Cc: shawnguo@kernel.org Cc: kernel@pengutronix.de Link: http://lkml.kernel.org/r/1435439504-406-1-git-send-email-tremyfr@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-07-01Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds1-13/+30
Pull timer fixes from Thomas Gleixner: "This contains: - a build regression fix introduced by the timeconst move - a hotplug regression fix introduced by the timer wheel diet - a cpu hotplug bug fix for the exynos clocksource driver" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: time: Remove development rules from Kbuild/Makefile timer: Fix hotplug regression clocksource: exynos_mct: Avoid blocking calls in the cpu hotplug notifier
2015-06-26clocksource: exynos_mct: Avoid blocking calls in the cpu hotplug notifierDamian Eppel1-13/+30
Whilst testing cpu hotplug events on kernel configured with DEBUG_PREEMPT and DEBUG_ATOMIC_SLEEP we get following BUG message, caused by calling request_irq() and free_irq() in the context of hotplug notification (which is in this case atomic context). [ 40.785859] CPU1: Software reset [ 40.786660] BUG: sleeping function called from invalid context at mm/slub.c:1241 [ 40.786668] in_atomic(): 1, irqs_disabled(): 128, pid: 0, name: swapper/1 [ 40.786678] Preemption disabled at:[< (null)>] (null) [ 40.786681] [ 40.786692] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.19.0-rc4-00024-g7dca860 #36 [ 40.786698] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree) [ 40.786728] [<c0014a00>] (unwind_backtrace) from [<c0011980>] (show_stack+0x10/0x14) [ 40.786747] [<c0011980>] (show_stack) from [<c0449ba0>] (dump_stack+0x70/0xbc) [ 40.786767] [<c0449ba0>] (dump_stack) from [<c00c6124>] (kmem_cache_alloc+0xd8/0x170) [ 40.786785] [<c00c6124>] (kmem_cache_alloc) from [<c005d6f8>] (request_threaded_irq+0x64/0x128) [ 40.786804] [<c005d6f8>] (request_threaded_irq) from [<c0350b8c>] (exynos4_local_timer_setup+0xc0/0x13c) [ 40.786820] [<c0350b8c>] (exynos4_local_timer_setup) from [<c0350ca8>] (exynos4_mct_cpu_notify+0x30/0xa8) [ 40.786838] [<c0350ca8>] (exynos4_mct_cpu_notify) from [<c003b330>] (notifier_call_chain+0x44/0x84) [ 40.786857] [<c003b330>] (notifier_call_chain) from [<c0022fd4>] (__cpu_notify+0x28/0x44) [ 40.786873] [<c0022fd4>] (__cpu_notify) from [<c0013714>] (secondary_start_kernel+0xec/0x150) [ 40.786886] [<c0013714>] (secondary_start_kernel) from [<40008764>] (0x40008764) Interrupts cannot be requested/freed in the CPU_STARTING/CPU_DYING notifications which run on the hotplugged cpu with interrupts and preemption disabled. To avoid the issue, request the interrupts for all possible cpus in the boot code. The interrupts are marked NO_AUTOENABLE to avoid a racy request_irq/disable_irq() sequence. The flag prevents the request_irq() code from enabling the interrupt immediately. The interrupt is then enabled in the CPU_STARTING notifier of the hotplugged cpu and again disabled with disable_irq_nosync() in the CPU_DYING notifier. [ tglx: Massaged changelog to match the patch ] Fixes: 7114cd749a12 ("clocksource: exynos_mct: use (request/free)_irq calls for local timer registration") Reported-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Tested-by: Marcin Jabrzyk <m.jabrzyk@samsung.com> Signed-off-by: Damian Eppel <d.eppel@samsung.com> Cc: m.szyprowski@samsung.com Cc: kyungmin.park@samsung.com Cc: daniel.lezcano@linaro.org Cc: kgene@kernel.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1435324984-7328-1-git-send-email-d.eppel@samsung.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@vger.kernel.org>
2015-06-26Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds5-1/+349
Pull ARM updates from Russell King: "Bigger items included in this update are: - A series of updates from Arnd for ARM randconfig build failures - Updates from Dmitry for StrongARM SA-1100 to move IRQ handling to drivers/irqchip/ - Move ARMs SP804 timer to drivers/clocksource/ - Perf updates from Mark Rutland in preparation to move the ARM perf code into drivers/ so it can be shared with ARM64. - MCPM updates from Nicolas - Add support for taking platform serial number from DT - Re-implement Keystone2 physical address space switch to conform to architecture requirements - Clean up ARMv7 LPAE code, which goes in hand with the Keystone2 changes. - L2C cleanups to avoid unlocking caches if we're prevented by the secure support to unlock. - Avoid cleaning a potentially dirty cache containing stale data on CPU initialisation - Add ARM-only entry point for secondary startup (for machines that can only call into a Thumb kernel in ARM mode). Same thing is also done for the resume entry point. - Provide arch_irqs_disabled via asm-generic - Enlarge ARMv7M vector table - Always use BFD linker for VDSO, as gold doesn't accept some of the options we need. - Fix an incorrect BSYM (for Thumb symbols) usage, and convert all BSYM compiler macros to a "badr" (for branch address). - Shut up compiler warnings provoked by our cmpxchg() implementation. - Ensure bad xchg sizes fail to link" * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (75 commits) ARM: Fix build if CLKDEV_LOOKUP is not configured ARM: fix new BSYM() usage introduced via for-arm-soc branch ARM: 8383/1: nommu: avoid deprecated source register on mov ARM: 8391/1: l2c: add options to overwrite prefetching behavior ARM: 8390/1: irqflags: Get arch_irqs_disabled from asm-generic ARM: 8387/1: arm/mm/dma-mapping.c: Add arm_coherent_dma_mmap ARM: 8388/1: tcm: Don't crash when TCM banks are protected by TrustZone ARM: 8384/1: VDSO: force use of BFD linker ARM: 8385/1: VDSO: group link options ARM: cmpxchg: avoid warnings from macro-ized cmpxchg() implementations ARM: remove __bad_xchg definition ARM: 8369/1: ARMv7M: define size of vector table for Vybrid ARM: 8382/1: clocksource: make ARM_TIMER_SP804 depend on GENERIC_SCHED_CLOCK ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource ARM: 8365/1: introduce sp804_timer_disable and remove arm_timer.h inclusion ARM: 8364/1: fix BE32 module loading ARM: 8360/1: add secondary_startup_arm prototype in header file ARM: 8359/1: correct secondary_startup_arm mode ARM: proc-v7: sanitise and document registers around errata ARM: proc-v7: clean up MIDR access ...
2015-06-26Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds3-0/+546
Pull ARM SoC platform support updates from Kevin Hilman: "Our SoC branch usually contains expanded support for new SoCs and other core platform code. Some highlights from this round: - sunxi: SMP support for A23 SoC - socpga: big-endian support - pxa: conversion to common clock framework - bcm: SMP support for BCM63138 - imx: support new I.MX7D SoC - zte: basic support for ZX296702 SoC" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (134 commits) ARM: zx: Add basic defconfig support for ZX296702 ARM: dts: zx: add an initial zx296702 dts and doc clk: zx: add clock support to zx296702 dt-bindings: Add #defines for ZTE ZX296702 clocks ARM: socfpga: fix build error due to secondary_startup MAINTAINERS: ARM64: EXYNOS: Extend entry for ARM64 DTS ARM: ep93xx: simone: support for SPI-based MMC/SD cards MAINTAINERS: update Shawn's email to use kernel.org one ARM: socfpga: support suspend to ram ARM: socfpga: add CPU_METHOD_OF_DECLARE for Arria 10 ARM: socfpga: use CPU_METHOD_OF_DECLARE for socfpga_cyclone5 ARM: EXYNOS: register power domain driver from core_initcall ARM: EXYNOS: use PS_HOLD based poweroff for all supported SoCs ARM: SAMSUNG: Constify platform_device_id ARM: EXYNOS: Constify irq_domain_ops ARM: EXYNOS: add coupled cpuidle support for Exynos3250 ARM: EXYNOS: add exynos_get_boot_addr() helper ARM: EXYNOS: add exynos_set_boot_addr() helper ARM: EXYNOS: make exynos_core_restart() less verbose ARM: EXYNOS: fix exynos_boot_secondary() return value on timeout ...
2015-06-25Merge tag 'for-4.2' of git://git.sourceforge.jp/gitroot/uclinux-h8/linuxLinus Torvalds5-0/+784
Pull Renesas H8/300 architecture re-introduction from Yoshinori Sato. We dropped arch/h8300 two years ago as stale and old, this is a new and more modern rewritten arch support for the same architecture. * tag 'for-4.2' of git://git.sourceforge.jp/gitroot/uclinux-h8/linux: (27 commits) h8300: fix typo. h8300: Always build dtb h8300: Remove ARCH_WANT_IPC_PARSE_VERSION sh-sci: Get register size from platform device clk: h8300: fix error handling in h8s2678_pll_clk_setup() h8300: Symbol name fix h8300: devicetree source h8300: configs h8300: IRQ chip driver h8300: clocksource h8300: clock driver h8300: Build scripts h8300: library functions h8300: Memory management h8300: miscellaneous functions h8300: process helpers h8300: compressed image support h8300: Low level entry h8300: kernel startup h8300: Interrupt and exceptions ...
2015-06-24ARM: Fix build if CLKDEV_LOOKUP is not configuredGuenter Roeck1-1/+1
mips:allmodconfig fails to build with drivers/clocksource/timer-sp804.c: In function '__sp804_clocksource_and_sched_clock_init': drivers/clocksource/timer-sp804.c:88:3: error: implicit declaration of function 'clk_get_sys' because CLKDEV_LOOKUP is not configured and the driver depends on it. Fixes: 0b7402dce445 ("ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource") Acked-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-23h8300: fix typo.Yoshinori Sato1-1/+1
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: clocksourceYoshinori Sato5-0/+784
h8300_timer8: 8bit clockevent device h8300_timer16 / h8300_tpu: 16bit clocksource Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-21clocksource: Increase dependencies of timer-stm32 to limit build wreckagePaul Gortmaker1-2/+2
This driver leaks out into arch/parisc builds that don't have CONFIG_GENERIC_CLOCKEVENTS, leading to the following (truncated) wreckage: CC drivers/clocksource/timer-stm32.o drivers/clocksource/timer-stm32.c:38:28: error: field 'evtdev' has incomplete type drivers/clocksource/timer-stm32.c:44:19: warning: 'enum clock_event_mode' declared inside parameter list drivers/clocksource/timer-stm32.c:44:19: warning: its scope is only this definition or declaration, which is probably not what you want drivers/clocksource/timer-stm32.c:43:62: error: parameter 1 ('mode') has incomplete type drivers/clocksource/timer-stm32.c:43:13: error: function declaration isn't a prototype drivers/clocksource/timer-stm32.c: In function 'stm32_clock_event_set_mode': drivers/clocksource/timer-stm32.c:47:3: error: type defaults to 'int' in declaration of '__mptr' drivers/clocksource/timer-stm32.c:47:3: warning: initialization from incompatible pointer type drivers/clocksource/timer-stm32.c:51:7: error: 'CLOCK_EVT_MODE_PERIODIC' undeclared (first use in this function) drivers/clocksource/timer-stm32.c:51:7: note: each undeclared identifier is reported only once for each function it appears in drivers/clocksource/timer-stm32.c:56:7: error: 'CLOCK_EVT_MODE_ONESHOT' undeclared (first use in this function) Tighten up the dependencies to limit where it gets built by copying the style of the Kconfig line for CLKSRC_EFM32 a few lines above. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Chanwoo Choi <cw00.choi@samsung.com> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Link: http://lkml.kernel.org/r/1434841352-24300-1-git-send-email-paul.gortmaker@windriver.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-06-03clocksource: timer-imx-gpt: remove include of <asm/mach/time.h>Shawn Guo1-2/+0
The include of <asm/mach/time.h> is not needed at all, and causes build error in some cases. Remove it. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-06-03ARM: imx: move timer driver into drivers/clocksourceShawn Guo3-0/+549
After the cleanup on imx timer driver, now it's ready to be moved into drivers/clocksource/. Let's do it. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-06-02clockevents/drivers/timer-stm32: Fix build warning spotted by kbuild test robotMaxime Coquelin1-2/+2
This patch fixes below warning spotted by kbuild test robot when building with ARCH=powerpc: drivers/clocksource/timer-stm32.c: In function 'stm32_clockevent_init': >> drivers/clocksource/timer-stm32.c:140:9: warning: large integer implicitly truncated to unsigned type [-Woverflow] writel_relaxed(~0UL, data->base + TIM_ARR); The fix consists in using 0U instead of 0UL. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-06-02clockevents/drivers: Add STM32 Timer driverMaxime Coquelin3-0/+190
STM32 MCUs feature 16 and 32 bits general purpose timers with prescalers. The drivers detects whether the time is 16 or 32 bits, and applies a 1024 prescaler value if it is 16 bits. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-06-02clocksource/drivers/armv7m_systick: Add ARM System timer driverMaxime Coquelin3-0/+87
This patch adds clocksource support for ARMv7-M's System timer, also known as SysTick. Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-06-02clocksource/drivers/lpc32xx: Add the lpc32xx timer driverJoachim Eastwood3-0/+278
Add support for using the NXP LPC timer as clocksource and clock event. These timers are present on many NXP devices including LPC32xx, LPC17xx, LPC18xx and LPC43xx. The timer has a 32-bit timer counter register with a programmable 32-bit prescaler. It supports up to 4 compare match values with interrupt generation and reset/stop timer counter action. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Acked-by: Arnd Bergmann <arnd@arndb.de>
2015-06-02clocksource/drivers/exynos_mct: Remove old platform mct_init()Krzysztof Kozlowski1-12/+0
Since commit 228e3023eb04 ("Merge tag 'mct-exynos-for-v3.10' of ...") the mct_init() was superseded by mct_init_dt() and is not referenced anywhere. Remove it. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-06-02clocksource/drivers/exynos_mct: Staticize struct clocksourceKrzysztof Kozlowski1-1/+1
The struct clocksource 'mct_frc' is not exported and used outside so make it static. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-06-02clocksource/drivers/exynos_mct: Change exynos4_mct_tick_clear return type to voidKrzysztof Kozlowski1-6/+2
Return value of exynos4_mct_tick_clear() was never checked so it can be safely changed to void. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-06-02clocksource/drivers/qcom: Remove dead codeStephen Boyd1-59/+0
This code is no longer used now that mach-msm has been removed. Delete it. Cc: David Brown <davidb@codeaurora.org> Cc: Bryan Huntsman <bryanh@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-06-02ARM: 8382/1: clocksource: make ARM_TIMER_SP804 depend on GENERIC_SCHED_CLOCKSudeep Holla1-0/+1
Commit 5261ef2ea836 ("ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource") moved SP804 to drivers/clocksource resulting in it being selectable on platforms/architectures without the config GENERIC_SCHED_CLOCK enabled. Due to that, it results in the following build failure(e.g. x86_64 allmodconfig) drivers/built-in.o: In function `__sp804_clocksource_and_sched_clock_init': (.init.text+0x1a0e7): undefined reference to `sched_clock_register' This patch fixes the build by making ARM_TIMER_SP804 depend on GENERIC_SCHED_CLOCK Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-02ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksourceSudeep Holla5-1/+348
The ARM Dual-Timer SP804 module is peripheral found not only on ARM32 platforms but also on ARM64 platforms. This patch moves the driver out of arch/arm to driver/clocksource so that it can be used on ARM64 platforms also. Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Rob Herring <robh@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Olof Johansson <olof@lixom.net> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-05-19Merge branch 'linus' into timers/coreThomas Gleixner4-27/+335
Make sure the upstream fixes are applied before adding further modifications.
2015-05-05clocksource: sun5i: Fix of_io_request_and_map error checkMaxime Ripard1-1/+1
of_io_request_and map returns an error pointer, but the current code assumes that on error the returned pointer will be NULL. Obviously, that makes the check completely useless. Change the test to actually check for the proper error code. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Link: http://lkml.kernel.org/r/1430579006-32702-6-git-send-email-maxime.ripard@free-electrons.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-05-05clocksource: integrator: Fix of_io_request_and_map error checkMaxime Ripard1-1/+1
of_io_request_and map returns an error pointer, but the current code assumes that on error the returned pointer will be NULL. Obviously, that makes the check completely useless. Change the test to actually check for the proper error code. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Link: http://lkml.kernel.org/r/1430579006-32702-5-git-send-email-maxime.ripard@free-electrons.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-05-05clocksource: asm9260: Fix of_io_request_and_map error checkMaxime Ripard1-1/+1
of_io_request_and map returns an error pointer, but the current code assumes that on error the returned pointer will be NULL. Obviously, that makes the check completely useless. Change the test to actually check for the proper error code. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Link: http://lkml.kernel.org/r/1430579006-32702-4-git-send-email-maxime.ripard@free-electrons.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-04-24Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds1-27/+105
Pull initial ACPI support for arm64 from Will Deacon: "This series introduces preliminary ACPI 5.1 support to the arm64 kernel using the "hardware reduced" profile. We don't support any peripherals yet, so it's fairly limited in scope: - MEMORY init (UEFI) - ACPI discovery (RSDP via UEFI) - CPU init (FADT) - GIC init (MADT) - SMP boot (MADT + PSCI) - ACPI Kconfig options (dependent on EXPERT) ACPI for arm64 has been in development for a while now and hardware has been available that can boot with either FDT or ACPI tables. This has been made possible by both changes to the ACPI spec to cater for ARM-based machines (known as "hardware-reduced" in ACPI parlance) but also a Linaro-driven effort to get this supported on top of the Linux kernel. This pull request is the result of that work. These changes allow us to initialise the CPUs, interrupt controller, and timers via ACPI tables, with memory information and cmdline coming from EFI. We don't support a hybrid ACPI/FDT scheme. Of course, there is still plenty of work to do (a serial console would be nice!) but I expect that to happen on a per-driver basis after this core series has been merged. Anyway, the diff stat here is fairly horrible, but splitting this up and merging it via all the different subsystems would have been extremely painful. Instead, we've got all the relevant Acks in place and I've not seen anything other than trivial (Kconfig) conflicts in -next (for completeness, I've included my resolution below). Nearly half of the insertions fall under Documentation/. So, we'll see how this goes. Right now, it all depends on EXPERT and I fully expect people to use FDT by default for the immediate future" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (31 commits) ARM64 / ACPI: make acpi_map_gic_cpu_interface() as void function ARM64 / ACPI: Ignore the return error value of acpi_map_gic_cpu_interface() ARM64 / ACPI: fix usage of acpi_map_gic_cpu_interface ARM64: kernel: acpi: honour acpi=force command line parameter ARM64: kernel: acpi: refactor ACPI tables init and checks ARM64: kernel: psci: let ACPI probe PSCI version ARM64: kernel: psci: factor out probe function ACPI: move arm64 GSI IRQ model to generic GSI IRQ layer ARM64 / ACPI: Don't unflatten device tree if acpi=force is passed ARM64 / ACPI: additions of ACPI documentation for arm64 Documentation: ACPI for ARM64 ARM64 / ACPI: Enable ARM64 in Kconfig XEN / ACPI: Make XEN ACPI depend on X86 ARM64 / ACPI: Select ACPI_REDUCED_HARDWARE_ONLY if ACPI is enabled on ARM64 clocksource / arch_timer: Parse GTDT to initialize arch timer irqchip: Add GICv2 specific ACPI boot support ARM64 / ACPI: Introduce ACPI_IRQ_MODEL_GIC and register device's gsi ACPI / processor: Make it possible to get CPU hardware ID via GICC ACPI / processor: Introduce phys_cpuid_t for CPU hardware ID ARM64 / ACPI: Parse MADT for SMP initialization ...
2015-04-22Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds3-0/+230
Pull ARM SoC driver updates from Olof Johansson: "Driver updates for v4.1. Some of these are for drivers/soc, where we find more and more SoC-specific drivers these days. Some are for other driver subsystems where we have received acks from the appropriate maintainers. The larger parts of this branch are: - MediaTek support for their PMIC wrapper interface, a high-level interface for talking to the system PMIC over a dedicated I2C interface. - Qualcomm SCM driver has been moved to drivers/firmware. It's used for CPU up/down and needs to be in a shared location for arm/arm64 common code. - cleanup of ARM-CCI PMU code. - another set of cleanusp to the OMAP GPMC code" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits) soc/mediatek: Remove unused variables clocksource: atmel-st: select MFD_SYSCON soc: mediatek: Add PMIC wrapper for MT8135 and MT8173 SoCs arm-cci: Fix CCI PMU event validation arm-cci: Split the code for PMU vs driver support arm-cci: Get rid of secure transactions for PMU driver arm-cci: Abstract the CCI400 PMU specific definitions arm-cci: Rearrange code for splitting PMU vs driver code drivers: cci: reject groups spanning multiple HW PMUs ARM: at91: remove useless include clocksource: atmel-st: remove mach/hardware dependency clocksource: atmel-st: use syscon/regmap ARM: at91: time: move the system timer driver to drivers/clocksource ARM: at91: properly initialize timer ARM: at91: at91rm9200: remove deprecated arm_pm_restart watchdog: at91rm9200: implement restart handler watchdog: at91rm9200: use the system timer syscon mfd: syscon: Add atmel system timer registers definition ARM: at91/dt: declare atmel,at91rm9200-st as a syscon soc: qcom: gsbi: Add support for ADM CRCI muxing ...
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