linux/drivers/clocksource/Kconfig, branch v6.7

clocksource: ep93xx: Add driver for Cirrus Logic EP93xx

2023-10-15T21:36:36Z

Rewrite EP93xx timer driver located in arch/arm/mach-ep93xx/timer-ep93xx.c trying to do everything the device tree way: - Make every IO-access relative to a base address and dynamic so we can do a dynamic ioremap and get going. - Find register range and interrupt from the device tree. Reviewed-by: Linus Walleij Tested-by: Alexander Sverdlin Signed-off-by: Nikita Shubin Signed-off-by: Daniel Lezcano Link: https://lore.kernel.org/r/20230915-ep93xx-v4-12-a1d779dcec10@maquefel.me

clocksource/drivers/timer-oxnas-rps: Remove obsolete timer driver

2023-07-13T12:46:17Z

Due to lack of maintenance and stall of development for a few years now, and since no new features will ever be added upstream, remove support for OX810 and OX820 timer. Acked-by: Linus Walleij Acked-by: Arnd Bergmann Acked-by: Daniel Golle Signed-off-by: Neil Armstrong Acked-by: Andy Shevchenko Signed-off-by: Daniel Lezcano Link: https://lore.kernel.org/r/20230630-topic-oxnas-upstream-remove-v2-3-fb6ab3dea87c@linaro.org

clocksource/drivers/loongson1: Move PWM timer to clocksource framework

2023-06-19T15:07:03Z

This patch moves most part of arch/mips/loongson32/common/time.c into drivers/clocksource. Adapt the driver to clocksource framework with devicetree support and updates Kconfig/Makefile options. Signed-off-by: Keguang Zhang Signed-off-by: Daniel Lezcano Link: https://lore.kernel.org/r/20230512103724.587760-4-keguang.zhang@gmail.com

clocksource/drivers/timer-mediatek: Split out CPUXGPT timers

2023-04-24T14:56:13Z

On MediaTek platforms, CPUXGPT is the source for the AArch64 System Timer, read through CNTVCT_EL0. The handling for starting this timer ASAP was introduced in commit 327e93cf9a59 ("clocksource/drivers/timer-mediatek: Implement CPUXGPT timers") which description also contains an important full explanation of the reasons why this driver is necessary and cannot be a module. In preparation for an eventual conversion of timer-mediatek to a platform_driver that would be possibly built as a module, split out the CPUXGPT timers driver to a new timer-mediatek-cpux.c driver. This commit brings no functional changes. Signed-off-by: AngeloGioacchino Del Regno Reviewed-by: Walter Chang Signed-off-by: Daniel Lezcano Link: https://lore.kernel.org/r/20230309103913.116775-1-angelogioacchino.delregno@collabora.com

Merge tag 'timers-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2023-02-21T17:45:13Z

Pull timer updates from Thomas Gleixner: "Updates for timekeeping, timers and clockevent/source drivers: Core: - Yet another round of improvements to make the clocksource watchdog more robust: - Relax the clocksource-watchdog skew criteria to match the NTP criteria. - Temporarily skip the watchdog when high memory latencies are detected which can lead to false-positives. - Provide an option to enable TSC skew detection even on systems where TSC is marked as reliable. Sigh! - Initialize the restart block in the nanosleep syscalls to be directed to the no restart function instead of doing a partial setup on entry. This prevents an erroneous restart_syscall() invocation from corrupting user space data. While such a situation is clearly a user space bug, preventing this is a correctness issue and caters to the least suprise principle. - Ignore the hrtimer slack for realtime tasks in schedule_hrtimeout() to align it with the nanosleep semantics. Drivers: - The obligatory new driver bindings for Mediatek, Rockchip and RISC-V variants. - Add support for the C3STOP misfeature to the RISC-V timer to handle the case where the timer stops in deeper idle state. - Set up a static key in the RISC-V timer correctly before first use. - The usual small improvements and fixes all over the place" * tag 'timers-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits) clocksource/drivers/timer-sun4i: Add CLOCK_EVT_FEAT_DYNIRQ clocksource/drivers/em_sti: Mark driver as non-removable clocksource/drivers/sh_tmu: Mark driver as non-removable clocksource/drivers/riscv: Patch riscv_clock_next_event() jump before first use clocksource/drivers/timer-microchip-pit64b: Add delay timer clocksource/drivers/timer-microchip-pit64b: Select driver only on ARM dt-bindings: timer: sifive,clint: add comaptibles for T-Head's C9xx dt-bindings: timer: mediatek,mtk-timer: add MT8365 clocksource/drivers/riscv: Get rid of clocksource_arch_init() callback clocksource/drivers/sh_cmt: Mark driver as non-removable clocksource/drivers/timer-microchip-pit64b: Drop obsolete dependency on COMPILE_TEST clocksource/drivers/riscv: Increase the clock source rating clocksource/drivers/timer-riscv: Set CLOCK_EVT_FEAT_C3STOP based on DT dt-bindings: timer: Add bindings for the RISC-V timer device RISC-V: time: initialize hrtimer based broadcast clock event device dt-bindings: timer: rk-timer: Add rktimer for rv1126 time/debug: Fix memory leak with using debugfs_lookup() clocksource: Enable TSC watchdog checking of HPET and PMTMR only when requested posix-timers: Use atomic64_try_cmpxchg() in __update_gt_cputime() clocksource: Verify HPET and PMTMR when TSC unverified ...

clocksource/drivers/timer-microchip-pit64b: Select driver only on ARM

2023-02-13T12:10:17Z

Microchip PIT64B is currently available on ARM based devices. Thus select it only for ARM. This allows implementing delay timer. Signed-off-by: Claudiu Beznea Link: https://lore.kernel.org/r/20230203130537.1921608-2-claudiu.beznea@microchip.com Signed-off-by: Daniel Lezcano

clocksource/drivers/timer-microchip-pit64b: Drop obsolete dependency on COMPILE_TEST

2023-02-13T12:10:17Z

Since commit 0166dc11be91 ("of: make CONFIG_OF user selectable"), it is possible to test-build any driver which depends on OF on any architecture by explicitly selecting OF. Therefore depending on COMPILE_TEST as an alternative is no longer needed. Signed-off-by: Jean Delvare Cc: Claudiu Beznea Cc: Daniel Lezcano Cc: Thomas Gleixner Reviewed-by: Claudiu Beznea Link: https://lore.kernel.org/r/20230121182911.4e47a5ff@endymion.delvare Signed-off-by: Daniel Lezcano

ARM: s3c: remove s3c24xx specific hacks

2023-01-16T08:26:05Z

A number of device drivers reference CONFIG_ARM_S3C24XX_CPUFREQ or similar symbols that are no longer available with the platform gone, though the drivers themselves are still used on newer platforms, so remove these hacks. Acked-by: Greg Kroah-Hartman Acked-by: Linus Walleij Acked-by: Jonathan Cameron Acked-by: Daniel Lezcano Acked-by: Miquel Raynal Acked-by: Ulf Hansson Acked-by: Stephen Boyd Reviewed-by: Krzysztof Kozlowski Signed-off-by: Arnd Bergmann

clocksource/drivers/exynos_mct: Enable building on ARTPEC

2022-09-20T08:49:45Z

This timer block is used on ARTPEC-8. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Vincent Whitchurch Link: https://lore.kernel.org/r/20220609112738.359385-5-vincent.whitchurch@axis.com Signed-off-by: Daniel Lezcano

Merge tag 'timers-v5.20-rc1' of https://git.linaro.org/people/daniel.lezcano/linux into timers/core

2022-07-28T10:33:34Z

Pull clockevent/source updates from Daniel Lezcano: - Add the missing DT bindings for the MTU nomadik timer (Linus Walleij) - Fix grammar typo in the ARM global timer Kconfig option (Randy Dunlap) - Add the tegra186 timer and use it on the tegra234 board (Thierry Reding) - Add the 'CPUXGPT' CPU timer for Mediatek MT6795 and implement a workaround to overcome an ATF bug where the timer is not correctly initialized (AngeloGioacchino Del Regno) - Rework the suspend/resume approach to enable the feature on the timer even it is not an active clock and fix a compilation warning (Claudiu Beznea) - Add the Add R-Car Gen4 timer support along with the DT bindings (Wolfram Sang) - Add compatible for ti,am654-timer to support AM6 SoC (Tony Lindgren) - Fix Kconfig option to put it back to 'bool' instead of 'tristate' for the tegra186 (Daniel Lezcano) - Sort 'family,type' DT bindings for the Renesas timers (Geert Uytterhoeven) - Add compatible 'allwinner,sun20i-d1-timer' for Allwinner D1 (Samuel Holland) - Remove unnecessary (void*) conversions for sun4i (XU pengfei) - Remove unnecessary (void*) conversions for sun5i (Li zeming) Link: https://lore.kernel.org/all/7472984e-f502-5f27-82bf-070127dd85a5@linaro.org