linux/drivers/clocksource/Kconfig, branch v3.14.9

Merge branch 'clockevents/3.14' of git://git.linaro.org/people/daniel.lezcano/linux into timers/core

2014-01-14T13:33:29Z

Pull clocksource/clockevent updates from Daniel Lezcano: * Axel Lin removed an unused structure defining the ids for the bcm kona driver. * Ezequiel Garcia enabled the timer divider only when the 25MHz timer is not used for the armada 370 XP. * Jingoo Han removed a pointless platform data initialization for the sh_mtu and sh_mtu2. * Laurent Pinchart added the clk_prepare/clk_unprepare for sh_cmt. * Linus Walleij added a useful warning in clk_of when no clocks are found while the old behavior was to silently hang at boot time. * Maxime Ripard added the high speed timer drivers for the Allwinner SoCs (A10, A13, A20). He increased the rating, shared the irq across all available cpus and fixed the clockevent's irq initialization for the sun4i. * Michael Opdenacker removed the usage of the IRQF_DISABLED for the all the timers driver located in drivers/clocksource. * Stephen Boyd switched to sched_clock_register for the arm_global_timer, cadence_ttc, sun4i and orion timers. Conflicts: drivers/clocksource/clksrc-of.c Signed-off-by: Ingo Molnar

clocksource: Add Allwinner SoCs HS timers driver

2013-12-11T10:37:50Z

Most of the Allwinner SoCs (at this time, all but the A10) also have a High Speed timers that are not using the 24MHz oscillator as a source but rather the AHB clock running much faster. The IP is slightly different between the A10s/A13 and the one used in the A20/A31, since the latter have 4 timers available, while the former have only 2 of them. [dlezcano] : Fixed conflict with b788beda "Order Kconfig options alphabetically" Signed-off-by: Maxime Ripard Tested-by: Emilio López Signed-off-by: Daniel Lezcano

clocksource: time-efm32: Select CLKSRC_MMIO

2013-12-10T18:41:26Z

The time-efm32 driver uses the clocksource MMIO functions. Thus it needs to select CLKSRC_MMIO in Kconfig. Signed-off-by: Axel Lin Signed-off-by: Daniel Lezcano Acked-by: Uwe Kleine-König

clocksource: arm_arch_timer: Hide eventstream Kconfig on non-ARM

2013-11-20T23:06:52Z

Pavel Machek reports that this config is exposed on x86 where the ARM architected timers aren't even present. Make it depend on the ARM architected timers being selected so that non-ARM builds aren't asked about it. Reported-by: Pavel Machek Reviewed-by: Pavel Machek Signed-off-by: Stephen Boyd Signed-off-by: Daniel Lezcano

clocksource: sun4i: Select CLKSRC_MMIO

2013-10-22T20:36:37Z

The Allwinner SoCs timer use the clocksource MMIO functions. We thus need to select them in Kconfig. Signed-off-by: Maxime Ripard Signed-off-by: Daniel Lezcano

clocksource: Provide timekeeping for efm32 SoCs

2013-10-22T20:36:33Z

An efm32 features 4 16-bit timers with a 10-bit prescaler. This driver provides clocksource and clock event device using one timer instance each. Signed-off-by: Uwe Kleine-König Signed-off-by: Daniel Lezcano

Merge branch 'timer_evtstrm' of git://linux-arm.org/linux-skn into clockevents/3.13

2013-10-03T14:13:51Z

Adds support to configure the rate and enable the event stream for architected timer. The event streams can be used to impose a timeout on a wfe, to safeguard against any programming error in case an expected event is not generated or even to implement wfe-based timeouts for userspace locking implementations. This feature can be disabled(enabled by default). Since the timer control register is reset to zero on warm boot, CPU PM notifier is added to save and restore the value. Signed-off-by: Daniel Lezcano

drivers: clocksource: add support for ARM architected timer event stream

2013-09-26T08:48:00Z

The ARM architected timer can generate events (used for waking up CPUs executing the wfe instruction) at a frequency represented as a power-of-2 divisor of the clock rate. An event stream might be used: - To implement wfe-based timeouts for userspace locking implementations. - To impose a timeout on a wfe for safeguarding against any programming error in case an expected event is not generated. This patch computes the event stream frequency aiming for a period of 100us between events. It uses ARM/ARM64 specific backends to configure and enable the event stream. Cc: Lorenzo Pieralisi Reviewed-by: Catalin Marinas Acked-by: Olof Johansson Signed-off-by: Will Deacon [sudeep: moving ARM/ARM64 changes into separate patches and adding Kconfig option] Signed-off-by: Sudeep KarkadaNagesha

arm: clocksource: mvebu: Use the main timer as clock source from DT

2013-09-26T00:30:15Z

This commit: 573145f08c2b92c45498468afbbba909f6ce6135 clocksource: armada-370-xp: Use CLOCKSOURCE_OF_DECLARE replaced a call to the driver's timer initialization by a call to clocksource_of_init(). However, it failed to select CONFIG_CLKSRC_OF. Fix this by selecting CONFIG_CLKSRC_OF for Armada370/XP machines. Without this change the kernel is stuck at: 'Calibrating delay loop...'. Signed-off-by: Jean Pihet Acked-by: Ezequiel Garcia Signed-off-by: Daniel Lezcano

clocksource: samsung_pwm_timer: Do not use clocksource_mmio

2013-08-05T23:21:43Z

In case of Samsung PWM timer, clocksource MMIO can not be used, because custom suspend/resume callbacks are required. Signed-off-by: Tomasz Figa Reviewed-by: Daniel Lezcano Reviewed-by: Sylwester Nawrocki Tested-by: Heiko Stuebner Tested-by: Mark Brown Tested-by: Sylwester Nawrocki Acked-by: Arnd Bergmann