android_kernel_motorola_sm6375/drivers/clocksource
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Samuel Holland cfaaed5e4a clocksource/arm_arch_timer: Improve Allwinner A64 timer workaround
commit 8b33dfe0ba1c84c1aab2456590b38195837f1e6e upstream.

Bad counter reads are experienced sometimes when bit 10 or greater rolls
over. Originally, testing showed that at least 10 lower bits would be
set to the same value during these bad reads. However, some users still
reported time skips.

Wider testing revealed that on some chips, occasionally only the lowest
9 bits would read as the anomalous value. During these reads (which
still happen only when bit 10), bit 9 would read as the correct value.

Reduce the mask by one bit to cover these cases as well.

Cc: stable@vger.kernel.org
Fixes: c950ca8c35 ("clocksource/drivers/arch_timer: Workaround for Allwinner A64 timer instability")
Reported-by: Roman Stratiienko <r.stratiienko@gmail.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210515021439.55316-1-samuel@sholland.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-19 08:53:15 +02:00
..
acpi_pm.c
arc_timer.c
arm_arch_timer.c clocksource/arm_arch_timer: Improve Allwinner A64 timer workaround 2021-07-19 08:53:15 +02:00
arm_global_timer.c
armv7m_systick.c
asm9260_timer.c clocksource/drivers/asm9260: Add a check for of_clk_get 2020-01-04 19:17:07 +01:00
bcm2835_timer.c clocksource/drivers/bcm2835_timer: Fix memory leak of timer 2020-02-24 08:36:28 +01:00
bcm_kona_timer.c
clksrc-dbx500-prcmu.c
clksrc_st_lpc.c
clps711x-timer.c
dummy_timer.c
dw_apb_timer.c clocksource: dw_apb_timer: Make CPU-affiliation being optional 2020-06-22 09:30:55 +02:00
dw_apb_timer_of.c clocksource: dw_apb_timer_of: Fix missing clockevent timers 2020-06-22 09:30:55 +02:00
em_sti.c clocksource: Remove dev_err() usage after platform_get_irq() 2019-08-27 00:31:39 +02:00
exynos_mct.c
h8300_timer8.c clocksource/drivers/h8300_timer8: Fix wrong return value in h8300_8timer_init() 2020-10-01 13:18:16 +02:00
h8300_timer16.c
h8300_tpu.c
hyperv_timer.c clocksource/drivers/hyper-v: Untangle stimers and timesync from clocksources 2020-04-01 11:02:12 +02:00
i8253.c
ingenic-timer.c clocksource: Add a new timer-ingenic driver 2019-08-08 15:30:08 -07:00
jcore-pit.c
Kconfig clocksource/drivers/ixp4xx: Select TIMER_OF when needed 2021-03-04 10:26:29 +01:00
Makefile clocksource: Add a new timer-ingenic driver 2019-08-08 15:30:08 -07:00
mips-gic-timer.c
mmio.c
mps2-timer.c
mxs_timer.c clocksource/drivers/mxs_timer: Add missing semicolon when DEBUG is defined 2021-03-04 10:26:29 +01:00
nomadik-mtu.c
numachip.c
renesas-ostm.c clocksource/drivers/renesas-ostm: Use DIV_ROUND_CLOSEST() helper 2019-08-27 00:31:39 +02:00
samsung_pwm_timer.c
scx200_hrt.c
sh_cmt.c clocksource/drivers/sh_cmt: Document "cmt-48" as deprecated 2019-08-27 00:31:39 +02:00
sh_mtu2.c clocksource/drivers/sh_mtu2: Do not loop using platform_get_irq_by_name() 2019-10-18 07:55:16 +02:00
sh_tmu.c clocksource: Remove dev_err() usage after platform_get_irq() 2019-08-27 00:31:39 +02:00
timer-armada-370-xp.c
timer-atcpit100.c
timer-atlas7.c
timer-atmel-pit.c
timer-atmel-st.c
timer-atmel-tcb.c clocksource/drivers/tcb_clksrc: Register delay timer 2019-08-27 00:31:39 +02:00
timer-cadence-ttc.c clocksource/drivers/cadence_ttc: Fix memory leak in ttc_setup_clockevent() 2020-12-30 11:51:17 +01:00
timer-cs5535.c
timer-davinci.c clocksource: davinci: only enable clockevents once tim34 is initialized 2020-02-24 08:36:46 +01:00
timer-digicolor.c
timer-efm32.c
timer-fsl-ftm.c
timer-fttmr010.c
timer-gx6605s.c clocksource/drivers/timer-gx6605s: Fixup counter reload 2020-10-07 08:01:25 +02:00
timer-imx-gpt.c
timer-imx-sysctr.c clocksource/drivers/imx-sysctr: Add internal clock divider handle 2019-08-27 00:31:39 +02:00
timer-imx-tpm.c
timer-integrator-ap.c
timer-ixp4xx.c
timer-keystone.c
timer-lpc32xx.c
timer-mediatek.c clocksource/drivers/mediatek: Fix error handling 2019-10-16 17:04:50 +02:00
timer-meson6.c
timer-milbeaut.c
timer-mp-csky.c
timer-npcm7xx.c clocksource/drivers/npcm: Fix GENMASK and timer operation 2019-08-27 00:31:39 +02:00
timer-nps.c
timer-of.c clocksource/drivers/timer-of: Use unique device name instead of timer 2020-01-04 19:17:08 +01:00
timer-of.h
timer-orion.c clocksource/drivers/orion: Add missing clk_disable_unprepare() on error path 2020-12-30 11:51:17 +01:00
timer-owl.c
timer-oxnas-rps.c
timer-pistachio.c
timer-prima2.c
timer-probe.c clocksource/drivers: Do not warn on probe defer 2019-08-27 00:31:39 +02:00
timer-pxa.c
timer-qcom.c
timer-rda.c
timer-riscv.c clocksource: riscv: add notrace to riscv_sched_clock 2020-01-09 10:19:59 +01:00
timer-rockchip.c
timer-sp.h
timer-sp804.c
timer-sprd.c
timer-stm32.c
timer-sun4i.c clocksource: sun4i: Add missing compatibles 2019-08-27 00:31:39 +02:00
timer-sun5i.c
timer-tango-xtal.c
timer-tegra.c
timer-ti-32k.c
timer-ti-dm.c
timer-u300.c
timer-versatile.c
timer-vf-pit.c
timer-vt8500.c
timer-zevio.c