user/sven/linux.git/drivers/clocksource/Kconfig, branch v4.15.11

clocksource: Improve GENERIC_CLOCKEVENTS dependency

2017-10-19T21:49:03Z

We regularly run into build errors when a clocksource driver selects CONFIG_TIMER_OF while CONFIG_GENERIC_CLOCKEVENTS is disabled: In file included from drivers/clocksource/timer-of.c:25:0: drivers/clocksource/timer-of.h:35:28: error: field 'clkevt' has incomplete type At the moment, three drivers can show this behavior: ARMV7M_SYSTICK, CLKSRC_ST_LPC and CLKSRC_NPS. We could add further dependencies as we did many times, but I have looked a little bit more at what architectures are left that don't use GENERIC_CLOCKEVENTS, and this shows that there is a better solution. On arch/frv and arch/ia64, we never select CONFIG_GENERIC_CLOCKEVENTS and we also don't use ARCH_USES_GETTIMEOFFSET, which would block the clocksource Kconfig menu. On m68k, some platforms use CONFIG_GENERIC_CLOCKEVENTS, some use ARCH_USES_GETTIMEOFFSET, and some use neither of them. The good news is that there is no configuration that does not set CONFIG_GENERIC_CLOCKEVENTS but that wants to enable any of the Kconfig symbols in the menu, so we can simply replace the dependency with the stricter one. While in theory one could have a clocksource driver without the clockevent infrastructure, this seems unlikely to be relevant in the future any more. We can probably drop some of the other dependencies as well now, e.g. there should generally be no reason to depend on CONFIG_ARM unless the driver uses architecture specific assembly. Reported-by: Randy Dunlap Signed-off-by: Arnd Bergmann Reviewed-by: Linus Walleij Signed-off-by: Daniel Lezcano

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-09-04T20:06:34Z

Pull timer fixes from Thomas Gleixner: "A rather small update for the time(r) subsystem: - A new clocksource driver IMX-TPM - Minor fixes to the alarmtimer facility - Device tree cleanups for Renesas drivers - A new kselftest and fixes for the timer related tests - Conversion of the clocksource drivers to use %pOF - Use the proper helpers to access rlimits in the posix-cpu-timer code" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: alarmtimer: Ensure RTC module is not unloaded clocksource: Convert to using %pOF instead of full_name clocksource/drivers/bcm2835: Remove message for a memory allocation failure devicetree: bindings: Remove deprecated properties devicetree: bindings: Remove unused 32-bit CMT bindings devicetree: bindings: Deprecate property, update example devicetree: bindings: r8a73a4 and R-Car Gen2 CMT bindings devicetree: bindings: R-Car Gen2 CMT0 and CMT1 bindings devicetree: bindings: Remove sh7372 CMT binding clocksource/drivers/imx-tpm: Add imx tpm timer support dt-bindings: timer: Add nxp tpm timer binding doc posix-cpu-timers: Use dedicated helper to access rlimit values alarmtimer: Fix unavailable wake-up source in sysfs timekeeping: Use proper timekeeper for debug code kselftests: timers: set-timer-lat: Add one-shot timer test cases kselftests: timers: set-timer-lat: Tweak reporting when timer fires early kselftests: timers: freq-step: Fix build warning kselftests: timers: freq-step: Define ADJ_SETOFFSET if device has older kernel headers

clocksource/drivers/imx-tpm: Add imx tpm timer support

2017-08-29T09:07:56Z

IMX Timer/PWM Module (TPM) supports both timer and pwm function while this patch only adds the timer support. PWM would be added later. The TPM counter, compare and capture registers are clocked by an asynchronous clock that can remain enabled in low power modes. NOTE: We observed in a very small probability, the bus fabric contention between GPU and A7 may results a few cycles delay of writing CNT registers which may cause the min_delta event got missed, so we need add a ETIME check here in case it happened. Cc: Daniel Lezcano Cc: Arnd Bergmann Cc: Thomas Gleixner Cc: Shawn Guo Cc: Anson Huang Cc: Bai Ping Signed-off-by: Dong Aisheng Signed-off-by: Daniel Lezcano

clocksource/drivers/Kconfig: Fix CLKSRC_PISTACHIO dependencies

2017-08-11T10:53:29Z

In v4.13, CLKSRC_PISTACHIO can select TIMER_OF on architectures without GENERIC_CLOCKEVENTS, resulting in a struct clock_event_device missing some required features and build breakage compiling timer_of.c. One of the symbols selecting TIMER_OF is CLKSRC_PISTACHIO, so add the dependency on GENERIC_CLOCKEVENTS. Thanks to kbuild test robot for finding this error (https://lkml.org/lkml/2017/7/16/249) Signed-off-by: Matt Redfearn Suggested-by: Ian Abbott Signed-off-by: Daniel Lezcano

Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2017-07-04T21:47:47Z

Pull ARM SoC driver updates from Arnd Bergmann: "New SoC specific drivers: - NVIDIA Tegra PM Domain support for newer SoCs (Tegra186 and later) based on the "BPMP" firmware - Clocksource and system controller drivers for the newly added Action Semi platforms (both arm and arm64). Reset subsystem, merged through arm-soc by tradition: - New drivers for Altera Stratix10, TI Keystone and Cortina Gemini SoCs - Various subsystem-wide cleanups Updates for existing SoC-specific drivers - TI GPMC (General Purpose Memory Controller) - Mediatek "scpsys" system controller support for MT6797 - Broadcom "brcmstb_gisb" bus arbitrer - ARM SCPI firmware - Renesas "SYSC" system controller One more driver update was submitted for the Freescale/NXP DPAA data path acceleration that has previously been used on PowerPC chips. I ended up postponing the merge until some API questions for its unusual MMIO access are resolved" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (35 commits) clocksource: owl: Add S900 support clocksource: Add Owl timer soc: renesas: rcar-sysc: Use GENPD_FLAG_ALWAYS_ON firmware: tegra: Fix locking bugs in BPMP soc/tegra: flowctrl: Fix error handling soc/tegra: bpmp: Implement generic PM domains soc/tegra: bpmp: Update ABI header PM / Domains: Allow overriding the ->xlate() callback soc: brcmstb: enable drivers for ARM64 and BMIPS soc: renesas: Rework Kconfig and Makefile logic reset: Add the TI SCI reset driver dt-bindings: reset: Add TI SCI reset binding reset: use kref for reference counting soc: qcom: smsm: Improve error handling, quiesce probe deferral cpufreq: scpi: use new scpi_ops functions to remove duplicate code firmware: arm_scpi: add support to populate OPPs and get transition latency dt-bindings: reset: Add reset manager offsets for Stratix10 memory: omap-gpmc: add error message if bank-width property is absent memory: omap-gpmc: make dts snippet include semicolon reset: Add a Gemini reset controller ...

clocksource/drivers/sun4i: Switch to the timer-of common init

2017-06-26T16:32:04Z

Previously a framework to factor out the drivers init function has been merged. Use this common framework in this driver, we get: Before: text data bss dec hex filename 1787 384 12 2183 887 drivers/clocksource/sun4i_timer.o After: text data bss dec hex filename 1407 512 0 1919 77f drivers/clocksource/sun4i_timer.o Signed-off-by: Daniel Lezcano Tested-by: Chen-Yu Tsai

clocksource: Add Owl timer

2017-06-18T19:19:48Z

The Actions Semi S500 SoC provides four timers, 2Hz0/1 and 32-bit TIMER0/1. Use TIMER0 as clocksource and TIMER1 as clockevents. Based on LeMaker linux-actions tree. An S500 datasheet can be found on the LeMaker Guitar pages: http://www.lemaker.org/product-guitar-download-29.html Acked-by: Daniel Lezcano Signed-off-by: Andreas Färber

clocksource/drivers: Add timer-of common init routine

2017-06-14T10:02:32Z

The different drivers are all using the same pattern when initializing. 1. Get the base address 2. Get the irq number 3. Get the clock 4. Prepare and enable the clock 5. Get the rate 6. Request an interrupt Instead of repeating again and again these steps in all the drivers, let's provide a common init routine to give the opportunity to factor all of them out. We can expect a significant kernel size improvement when the common routine will be used in all the drivers. Signed-off-by: Daniel Lezcano

clocksource/drivers: Rename CLKSRC_ACPI to TIMER_ACPI

2017-06-14T10:01:19Z

The config option name is now renamed to 'TIMER_ACPI' for consistency with the CLOCKSOURCE_OF_DECLARE => TIMER_OF_DECLARE change. Signed-off-by: Daniel Lezcano Reviewed-by: Linus Walleij

clocksource/drivers: Rename CLKSRC_OF to TIMER_OF

2017-06-14T10:01:03Z

The config option name is now renamed to 'TIMER_OF' for consistency with the CLOCKSOURCE_OF_DECLARE => TIMER_OF_DECLARE change. Signed-off-by: Daniel Lezcano Reviewed-by: Linus Walleij