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* clocksource/drivers/sun4i: Clear interrupts after stopping timer in probe ↵Chen-Yu Tsai2016-08-261-1/+8
| | | | | | | | | | | | | | | | | | | | | | | function The bootloader (U-boot) sometimes uses this timer for various delays. It uses it as a ongoing counter, and does comparisons on the current counter value. The timer counter is never stopped. In some cases when the user interacts with the bootloader, or lets it idle for some time before loading Linux, the timer may expire, and an interrupt will be pending. This results in an unexpected interrupt when the timer interrupt is enabled by the kernel, at which point the event_handler isn't set yet. This results in a NULL pointer dereference exception, panic, and no way to reboot. Clear any pending interrupts after we stop the timer in the probe function to avoid this. Cc: stable@vger.kernel.org Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
* drivers/clocksource/pistachio: Fix memory corruption in initMarcin Nowakowski2016-08-261-4/+4
| | | | | | | | | | | | | Driver init code incorrectly uses the block base address and as a result clears clocksource structure's fields instead of the hardware registers. Commit 09a998201649 ("timekeeping: Lift clocksource cacheline restriction") has changed the offsets within pistachio_clocksource structure and what has previously gone unnoticed now leads to a kernel panic during boot. Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/timer-atmel-pit: Enable mck clockAlexandre Belloni2016-08-261-0/+6
| | | | | | | | | | | | | | mck is needed to get the PIT working. Explicitly prepare_enable it instead of assuming it is enabled. This solves an issue where the system is freezing when the ETM/ETB drivers are enabled. Reported-by: Olivier Schonken <olivier.schonken@gmail.com> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/pxa: Fix include files for compilationBaoyou Xie2016-08-241-0/+2
| | | | | | | | | | | | | | | | | | | | We get 1 warning about global functions without a declaration in the clocksource/drivers/pxa driver when building with W=1: drivers/clocksource/pxa_timer.c:221:13: warning: no previous prototype for 'pxa_timer_nodt_init' [-Wmissing-prototypes] void __init pxa_timer_nodt_init(int irq, void __iomem *base, In fact, this function is declared in pxa.h, so this patch add missing header dependencies. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Cc: daniel.lezcano@linaro.org Cc: xie.baoyou@zte.com.cn Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1471965569-4104-1-git-send-email-baoyou.xie@linaro.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* clocksource/drivers/mips-gic-timer: Make gic_clocksource_of_init() return intPaul Gortmaker2016-08-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit: d8152bf85d2c0 ("clocksource/drivers/mips-gic-timer: Convert init function to return error") several return values were added to a void function resulting in the following warnings: clocksource/mips-gic-timer.c: In function 'gic_clocksource_of_init': clocksource/mips-gic-timer.c:175:3: warning: 'return' with a value, in function returning void [enabled by default] clocksource/mips-gic-timer.c:183:4: warning: 'return' with a value, in function returning void [enabled by default] clocksource/mips-gic-timer.c:190:3: warning: 'return' with a value, in function returning void [enabled by default] clocksource/mips-gic-timer.c:195:3: warning: 'return' with a value, in function returning void [enabled by default] clocksource/mips-gic-timer.c:200:3: warning: 'return' with a value, in function returning void [enabled by default] clocksource/mips-gic-timer.c:211:2: warning: 'return' with a value, in function returning void [enabled by default] clocksource/mips-gic-timer.c: At top level: clocksource/mips-gic-timer.c:213:1: warning: comparison of distinct pointer types lacks a cast [enabled by default] clocksource/mips-gic-timer.c: In function 'gic_clocksource_of_init': clocksource/mips-gic-timer.c:183:18: warning: ignoring return value of 'PTR_ERR', declared with attribute warn_unused_result [-Wunused-result] Given that the addition of the return values was intentional, it seems that the conversion of the containing function from void to int was simply overlooked. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-mips@linux-mips.org Fixes: d8152bf85d2c ("clocksource/drivers/mips-gic-timer: Convert init function to return error") Link: http://lkml.kernel.org/r/1471429296-9053-3-git-send-email-daniel.lezcano@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* clocksource/drivers/kona: Fix get_counter() error handlingArnd Bergmann2016-08-171-6/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I could not figure out why, but GCC cannot prove that the kona_timer_init() function always initializes its two outputs, and we get a warning for the use of the 'lsw' variable later, which is obviously correct. drivers/clocksource/bcm_kona_timer.c: In function 'kona_timer_init': drivers/clocksource/bcm_kona_timer.c:119:13: error: 'lsw' may be used uninitialized in this function [-Werror=maybe-uninitialized] Slightly reordering the loop makes the warning disappear, after it becomes more obvious to the compiler that the loop is always entered on the first iteration. As pointed out by Ray Jui, there is a related problem in the way we deal with the loop running into the limit, as we just keep going there with an invalid counter data, so instead we now propagate a -ETIMEDOUT result to the caller. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Ray Jui <ray.jui@broadcom.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: bcm-kernel-feedback-list@broadcom.com Link: http://lkml.kernel.org/r/1471429296-9053-2-git-send-email-daniel.lezcano@linaro.org Link: https://patchwork.kernel.org/patch/9174261/ Signed-off-by: Ingo Molnar <mingo@kernel.org>
* clocksource/drivers/time-armada-370-xp: Fix the clock referenceGregory CLEMENT2016-08-171-1/+0
| | | | | | | | | | | | | | | | | | | | | While converting the init function to return an error, the wrong clock was get. This leads to the wrong clock rate and slows down the kernel. For example, it affects typical boot time: - without fix: over 1 minute - with fix: 15 seconds Tested-by: Stefan Roese <sr@denx.de> Tested-by: Ralph Sennhauser <ralph.sennhauser@gmail.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: 12549e27c63c ("clocksource/drivers/time-armada-370-xp: Convert init function to return error") Link: http://lkml.kernel.org/r/1471429296-9053-1-git-send-email-daniel.lezcano@linaro.org [ Refined the changelog. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
* Merge branch 'linus' into timers/urgent, to pick up fixesIngo Molnar2016-08-101-1/+1
|\ | | | | | | Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * Merge tag 'armsoc-drivers' of ↵Linus Torvalds2016-08-011-1/+1
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Olof Johansson: "Driver updates for ARM SoCs. A slew of changes this release cycle. The reset driver tree, that we merge through arm-soc for historical reasons, is also sizable this time around. Among the changes: - clps711x: Treewide changes to compatible strings, merged here for simplicity. - Qualcomm: SCM firmware driver cleanups, move to platform driver - ux500: Major cleanups, removal of old mach-specific infrastructure. - Atmel external bus memory driver - Move of brcmstb platform to the rest of bcm - PMC driver updates for tegra, various fixes and improvements - Samsung platform driver updates to support 64-bit Exynos platforms - Reset controller cleanups moving to devm_reset_controller_register() APIs - Reset controller driver for Amlogic Meson - Reset controller driver for Hisilicon hi6220 - ARM SCPI power domain support" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (100 commits) ARM: ux500: consolidate base platform files ARM: ux500: move soc_id driver to drivers/soc ARM: ux500: call ux500_setup_id later ARM: ux500: consolidate soc_device code in id.c ARM: ux500: remove cpu_is_u* helpers ARM: ux500: use CLK_OF_DECLARE() ARM: ux500: move l2x0 init to .init_irq mfd: db8500 stop passing around platform data ASoC: ab8500-codec: remove platform data based probe ARM: ux500: move ab8500_regulator_plat_data into driver ARM: ux500: remove unused regulator data soc: raspberrypi-power: add CONFIG_OF dependency firmware: scpi: add CONFIG_OF dependency video: clps711x-fb: Changing the compatibility string to match with the smallest supported chip input: clps711x-keypad: Changing the compatibility string to match with the smallest supported chip pwm: clps711x: Changing the compatibility string to match with the smallest supported chip serial: clps711x: Changing the compatibility string to match with the smallest supported chip irqchip: clps711x: Changing the compatibility string to match with the smallest supported chip clocksource: clps711x: Changing the compatibility string to match with the smallest supported chip clk: clps711x: Changing the compatibility string to match with the smallest supported chip ...
| | * clocksource: clps711x: Changing the compatibility string to match with the ↵Alexander Shiyan2016-07-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | smallest supported chip This patch changes the compatibility string to match with the smallest supported chip (EP7209). Since the DT-support for this CPU is not yet announced, this change is safe. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | | clocksource/arm_arch_timer: Force per-CPU interrupt to be level-triggeredMarc Zyngier2016-08-011-3/+23
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ARM architected timer produces level-triggered interrupts (this is mandated by the architecture). Unfortunately, a number of device-trees get this wrong, and expose an edge-triggered interrupt. Until now, this wasn't too much an issue, as the programming of the trigger would fail (the corresponding PPI cannot be reconfigured), and the kernel would be happy with this. But we're about to change this, and trust DT a lot if the driver doesn't provide its own trigger information. In that context, the timer breaks badly. While we do need to fix the DTs, there is also some userspace out there (kvmtool) that generates the same kind of broken DT on the fly, and that will completely break with newer kernels. As a safety measure, and to keep buggy software alive as well as buying us some time to fix DTs all over the place, let's check what trigger configuration has been given us by the firmware. If this is not a level configuration, then we know that the DT/ACPI configuration is bust, and we pick some defaults which won't be worse than the existing setup. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Liu Gang <Gang.Liu@nxp.com> Cc: Mark Rutland <marc.rutland@arm.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Wenbin Song <Wenbin.Song@freescale.com> Cc: Mingkai Hu <Mingkai.Hu@freescale.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Jon Hunter <jonathanh@nvidia.com> Cc: arm@kernel.org Cc: bcm-kernel-feedback-list@broadcom.com Cc: linux-arm-kernel@lists.infradead.org Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Ray Jui <rjui@broadcom.com> Cc: "Hou Zhiqiang" <B48286@freescale.com> Cc: Tirumalesh Chalamarla <tchalamarla@cavium.com> Cc: linux-samsung-soc@vger.kernel.org Cc: Yuan Yao <yao.yuan@nxp.com> Cc: Jan Glauber <jglauber@cavium.com> Cc: Gregory Clement <gregory.clement@free-electrons.com> Cc: linux-amlogic@lists.infradead.org Cc: soren.brinkmann@xilinx.com Cc: Rajesh Bhagat <rajesh.bhagat@freescale.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: Duc Dang <dhdang@apm.com> Cc: Kukjin Kim <kgene@kernel.org> Cc: Carlo Caione <carlo@caione.org> Cc: Dinh Nguyen <dinguyen@opensource.altera.com> Link: http://lkml.kernel.org/r/1470045256-9032-2-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | clocksource/atlas7: Convert to hotplug state machineRichard Cochran2016-07-151-32/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Barry Song <baohua@kernel.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153338.310333816@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | clocksource/armada-370-xp: Convert to hotplug state machineRichard Cochran2016-07-151-30/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153338.229913786@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | clocksource/exynos_mct: Convert to hotplug state machineRichard Cochran2016-07-151-34/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Kukjin Kim <kgene@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-samsung-soc@vger.kernel.org Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153338.147940411@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | clocksource/arm_global_timer: Convert to hotplug state machineRichard Cochran2016-07-151-29/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Maxime Coquelin <maxime.coquelin@st.com> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Srinivas Kandagatla <srinivas.kandagatla@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: kernel@stlinux.com Cc: linux-arm-kernel@lists.infradead.org Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153338.062741642@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | clocksource/mips-gic: Convert to hotplug state machineRichard Cochran2016-07-151-25/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153336.380737946@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | clocksource/qcom-timer: Convert to hotplug state machineRichard Cochran2016-07-151-30/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153336.295486558@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | clocksource/metag: Convert to hotplug state machineRichard Cochran2016-07-151-27/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: James Hogan <james.hogan@imgtec.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-metag@vger.kernel.org Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153336.215137642@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | clocksource/dummy_timer: Convert to hotplug state machineRichard Cochran2016-07-151-30/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153336.130385842@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | clocksource/arm_arch_timer: Convert to hotplug state machineRichard Cochran2016-07-151-28/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153336.048259040@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | clocksource/drivers/time-armada-370-xp: Fix return value checkAnna-Maria Gleixner2016-07-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | The failure check of armada_370_xp_timer_setup() in armada_370_xp_timer_common_init() is negated. This leads to an error message and exit in case of a successful initialization. Remove the stray '!'. Fixes: 12549e27c63c ("clocksource/drivers/time-armada-370-xp: Convert init function to return error") Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1607121731020.1344@hypnos.tec.linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | clocksource/drivers/cadence_ttc: fix a return value in case of errorChristophe Jaillet2016-07-071-1/+1
| | | | | | | | | | | | | | | | | | IS_ERR and PTR_ERR should use the same variable, clk_ce in this case. Fixes: 4de1eb07c47f (Convert init function to return error) Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
* | clocksource/drivers/arm_arch_timer: Control the evtstrm via the cmdlineWill Deacon2016-06-282-6/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Disabling the eventstream can be useful for both remotely debugging a deployed production system and development of code using WFE-based polling loops. Whilst this can currently be controlled via a Kconfig option (CONFIG_ARM_ARCH_TIMER_EVTSTREAM), it's often desirable to toggle the feature on the command line, so this patch adds a new command-line option ("clocksource.arm_arch_timer.evtstrm") to do just that. The default behaviour is determined based on CONFIG_ARM_ARCH_TIMER_EVTSTREAM. Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/versatile: Add the COMPILE_TEST optionDaniel Lezcano2016-06-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the Kconfig option logic to fullfil with the current approach, allowing the user to compile the driver on different platforms. The current option let the user to select the clocksource or not. The Kconfig option policy is to let the platform to select the timer automatically. Add the COMPILE_TEST option, so the prompt to select the driver will be showed only when COMPILE_TEST is set and will let this driver to compile on different platform, thus increasing the compilation test coverage. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/timer-atmel-st: Add the COMPILE_TEST optionDaniel Lezcano2016-06-281-1/+4
| | | | | | | | | | | | | | Change the Kconfig option logic to fullfil with the current approach, allowing the user to compile the driver on different platforms. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/arm_global_timer: Add the COMPILE_TEST optionDaniel Lezcano2016-06-281-1/+2
| | | | | | | | | | | | | | Change the Kconfig option logic to fullfil with the current approach, allowing the user to compile the driver on different platforms. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/integrator-ap: Add the COMPILE_TEST optionDaniel Lezcano2016-06-282-1/+8
| | | | | | | | | | | | | | | | | | | | | | Change the Kconfig option logic to fullfil with the current approach. A new Kconfig option is added, CONFIG_INTEGRATOR_AP_TIMER and is selected by the platform. Then the clocksource's Kconfig is changed to make this option selectable by the user if the COMPILE_TEST option is set. Otherwise, it is up to the platform's Kconfig to select the timer. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/keystone: Add the COMPILE_TEST optionDaniel Lezcano2016-06-282-1/+9
| | | | | | | | | | | | | | | | | | | | | | Change the Kconfig option logic to fullfil with the current approach. A new Kconfig option is added, CONFIG_KEYSTONE_TIMER and is selected by the platform. Then the clocksource's Kconfig is changed to make this option selectable by the user if the COMPILE_TEST option is set. Otherwise, it is up to the platform's Kconfig to select the timer. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/nspire: Add the COMPILE_TEST optionDaniel Lezcano2016-06-282-1/+8
| | | | | | | | | | | | | | | | | | | | | | Change the Kconfig option logic to fullfil with the current approach. A new Kconfig option is added, CONFIG_NSPIRE_TIMER and is selected by the platform. Then the clocksource's Kconfig is changed to make this option selectable by the user if the COMPILE_TEST option is set. Otherwise, it is up to the platform's Kconfig to select the timer. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/u300: Add the COMPILE_TEST optionDaniel Lezcano2016-06-282-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the Kconfig option logic to fullfil with the current approach. A new Kconfig option is added, CONFIG_U300_TIMER and is selected by the platform. Then the clocksource's Kconfig is changed to make this option selectable by the user if the COMPILE_TEST option is set. Otherwise, it is up to the platform's Kconfig to select the timer. Due on the delay specific code, this driver will compile only on the ARM architecture. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/prima2: Add the COMPILE_TEST optionDaniel Lezcano2016-06-282-1/+8
| | | | | | | | | | | | | | | | | | | | | | Change the Kconfig option logic to fullfil with the current approach. A new Kconfig option is added, CONFIG_PRIMA2_TIMER and is selected by the platform. Then the clocksource's Kconfig is changed to make this option selectable by the user if the COMPILE_TEST option is set. Otherwise, it is up to the platform's Kconfig to select the timer. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/prima2: Remove useless header <asm/mach/time.h>Daniel Lezcano2016-06-281-1/+0
| | | | | | | | | | | | | | | | The driver includes the <asm/mach/time.h> header but it is pointless. Remove it. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/mxs: Add the COMPILE_TEST optionDaniel Lezcano2016-06-282-1/+9
| | | | | | | | | | | | | | | | | | | | | | Change the Kconfig option logic to fullfil with the current approach. A new Kconfig option is added, CONFIG_MXS_TIMER and is selected by the platform. Then the clocksource's Kconfig is changed to make this option selectable by the user if the COMPILE_TEST option is set. Otherwise, it is up to the platform's Kconfig to select the timer. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/mxs: Remove useless header <asm/mach/time.h>Daniel Lezcano2016-06-281-2/+0
| | | | | | | | | | | | | | | | The driver includes the <asm/mach/time.h> header but it is pointless. Remove it. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/moxart: Add the COMPILE_TEST optionDaniel Lezcano2016-06-282-1/+8
| | | | | | | | | | | | | | | | | | | | | | Change the Kconfig option logic to fullfil with the current approach. A new Kconfig option is added, CONFIG_MOXART_TIMER and is selected by the platform. Then the clocksource's Kconfig is changed to make this option selectable by the user if the COMPILE_TEST option is set. Otherwise, it is up to the platform's Kconfig to select the timer. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/atlas7: Add the COMPILE_TEST optionDaniel Lezcano2016-06-282-1/+8
| | | | | | | | | | | | | | | | | | | | | | Change the Kconfig option logic to fullfil with the current approach. A new Kconfig option is added, CONFIG_ATLAS7_TIMER and is selected by the platform. Then the clocksource's Kconfig is changed to make this option selectable by the user if the COMPILE_TEST option is set. Otherwise, it is up to the platform's Kconfig to select the timer. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/clps_711x: Add the COMPILE_TEST optionDaniel Lezcano2016-06-282-1/+8
| | | | | | | | | | | | | | | | | | | | | | Change the Kconfig option logic to fullfil with the current approach. A new Kconfig option is added, CONFIG_CLPS711X_TIMER and is selected by the platform. Then the clocksource's Kconfig is changed to make this option selectable by the user if the COMPILE_TEST option is set. Otherwise, it is up to the platform's Kconfig to select the timer. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/bcm_kona: Add the COMPILE_TEST optionDaniel Lezcano2016-06-282-1/+8
| | | | | | | | | | | | | | | | | | | | | | Change the Kconfig option logic to fullfil with the current approach. A new Kconfig option is added, CONFIG_BCM_KONA_TIMER and is selected by the platform. Then the clocksource's Kconfig is changed to make this option selectable by the user if the COMPILE_TEST option is set. Otherwise, it is up to the platform's Kconfig to select the timer. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/armv7m_systick: Add the COMPILE_TEST optionDaniel Lezcano2016-06-282-1/+2
| | | | | | | | | | | | | | | | | | | | | | In order to increase the compilation test coverage, add the COMPILE_TEST so the driver can be compiled even if it does not belong to the platform or the architecture. The io.h header inclusion is also added as it the driver does not compile on UM platform. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/bcm2835: Add the COMPILE_TEST optionDaniel Lezcano2016-06-282-1/+8
| | | | | | | | | | | | | | | | | | | | | | Change the Kconfig option logic to fullfil with the current approach. A new Kconfig option is added, CONFIG_BCM2835_TIMER and is selected by the platform. Then the clocksource's Kconfig is changed to make this option selectable by the user if the COMPILE_TEST option is set. Otherwise, it is up to the platform's Kconfig to select the timer. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/bcm_kona: Remove useless header <asm/mach/time.h>Daniel Lezcano2016-06-281-1/+0
| | | | | | | | | | | | | | | | The driver includes the <asm/mach/time.h> header but it is pointless. Remove it. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksources: Switch back to the clksrc tableDaniel Lezcano2016-06-2855-102/+88
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All the clocksource drivers's init function are now converted to return an error code. CLOCKSOURCE_OF_DECLARE is no longer used as well as the clksrc-of table. Let's convert back the names: - CLOCKSOURCE_OF_DECLARE_RET => CLOCKSOURCE_OF_DECLARE - clksrc-of-ret => clksrc-of Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> For exynos_mct and samsung_pwm_timer: Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> For arch/arc: Acked-by: Vineet Gupta <vgupta@synopsys.com> For mediatek driver: Acked-by: Matthias Brugger <matthias.bgg@gmail.com> For the Rockchip-part Acked-by: Heiko Stuebner <heiko@sntech.de> For STi : Acked-by: Patrice Chotard <patrice.chotard@st.com> For the mps2-timer.c and versatile.c changes: Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> For the OXNAS part : Acked-by: Neil Armstrong <narmstrong@baylibre.com> For LPC32xx driver: Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com> For Broadcom Kona timer change: Acked-by: Ray Jui <ray.jui@broadcom.com> For Sun4i and Sun5i: Acked-by: Chen-Yu Tsai <wens@csie.org> For Meson6: Acked-by: Carlo Caione <carlo@caione.org> For Keystone: Acked-by: Santosh Shilimkar <ssantosh@kernel.org> For NPS: Acked-by: Noam Camus <noamca@mellanox.com> For bcm2835: Acked-by: Eric Anholt <eric@anholt.net>
* | clocksource/drivers/oxnas-rps: Convert init function to return errorDaniel Lezcano2016-06-281-13/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Neil Armstrong <narmstrong@baylibre.com>
* | clocksource/drivers/nps: Convert init function to return errorDaniel Lezcano2016-06-281-8/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | clocksource/drivers/zevio: Convert init function to return errorDaniel Lezcano2016-06-281-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/vt8500: Convert init function to return errorDaniel Lezcano2016-06-281-8/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/vf_pit_timer: Convert init function to return errorDaniel Lezcano2016-06-281-9/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* | clocksource/drivers/versatile: Convert init function to return errorDaniel Lezcano2016-06-281-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
* | clocksource/drivers/u300: Convert init function to return errorDaniel Lezcano2016-06-281-11/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* | clocksource/drivers/ti-32k: Convert init function to return errorDaniel Lezcano2016-06-281-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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