iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/drivers/clocksource
History
Phong Hoang c60a31db39 clocksource/drivers/sh_cmt: Fix wrong setting if don't request IRQ for clock source channel 
[ Upstream commit be83c3b6e7b8ff22f72827a613bf6f3aa5afadbb ]

If CMT instance has at least two channels, one channel will be used
as a clock source and another one used as a clock event device.
In that case, IRQ is not requested for clock source channel so
sh_cmt_clock_event_program_verify() might work incorrectly.
Besides, when a channel is only used for clock source, don't need to
re-set the next match_value since it should be maximum timeout as
it still is.

On the other hand, due to no IRQ, total_cycles is not counted up
when reaches compare match time (timer counter resets to zero),
so sh_cmt_clocksource_read() returns unexpected value.
Therefore, use 64-bit clocksoure's mask for 32-bit or 16-bit variants
will also lead to wrong delta calculation. Hence, this mask should
correspond to timer counter width, and above function just returns
the raw value of timer counter register.

Fixes: bfa76bb12f23 ("clocksource: sh_cmt: Request IRQ for clock event device only")
Fixes: 37e7742c55ba ("clocksource/drivers/sh_cmt: Fix clocksource width for 32-bit machines")
Signed-off-by: Phong Hoang <phong.hoang.wz@renesas.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210422123443.73334-1-niklas.soderlund+renesas@ragnatech.se
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-09-15 09:47:29 +02:00
..
acpi_pm.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 243
2019-06-19 17:09:07 +02:00
arc_timer.c
Merge branch 'timers/vdso' into timers/core
2019-07-03 10:50:21 +02:00
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
armv7m_systick.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
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
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
clksrc_st_lpc.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
clksrc-dbx500-prcmu.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 197
2019-05-30 11:29:22 -07:00
clps711x-timer.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
dummy_timer.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
dw_apb_timer_of.c
clocksource: dw_apb_timer_of: Fix missing clockevent timers
2020-06-22 09:30:55 +02:00
dw_apb_timer.c
clocksource: dw_apb_timer: Make CPU-affiliation being optional
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
Merge branch 'timers/vdso' into timers/core
2019-07-03 10:50:21 +02:00
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
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
h8300_tpu.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
hyperv_timer.c
clocksource/drivers/hyper-v: Untangle stimers and timesync from clocksources
2020-04-01 11:02:12 +02:00
i8253.c
clockevents/drivers/i8253: Add support for PIT shutdown quirk
2018-11-04 11:04:46 +01:00
ingenic-timer.c
clocksource: Add a new timer-ingenic driver
2019-08-08 15:30:08 -07:00
jcore-pit.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
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
clocksource/drivers/mips-gic-timer: Make gic_compare_irqaction static
2019-03-22 22:59:33 +01:00
mmio.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
mps2-timer.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
numachip.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
renesas-ostm.c
clocksource/drivers/renesas-ostm: Use DIV_ROUND_CLOSEST() helper
2019-08-27 00:31:39 +02:00
samsung_pwm_timer.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
scx200_hrt.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
sh_cmt.c
clocksource/drivers/sh_cmt: Fix wrong setting if don't request IRQ for clock source channel
2021-09-15 09:47:29 +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
clocksource/drivers: Unify the names to timer-* format
2018-10-03 14:37:02 +02:00
timer-atcpit100.c
clocksource/drivers: Set clockevent device cpumask to cpu_possible_mask
2018-07-26 11:26:30 +02:00
timer-atlas7.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4
2019-05-21 11:28:40 +02:00
timer-atmel-pit.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
timer-atmel-st.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
2019-05-30 11:29:53 -07:00
timer-davinci.c
clocksource: davinci: only enable clockevents once tim34 is initialized
2020-02-24 08:36:46 +01:00
timer-digicolor.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
timer-efm32.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
timer-fsl-ftm.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
timer-fttmr010.c
clocksource/drivers/fttmr010: Fix invalid interrupt register access
2018-12-18 22:22:23 +01:00
timer-gx6605s.c
clocksource/drivers/timer-gx6605s: Fixup counter reload
2020-10-07 08:01:25 +02:00
timer-imx-gpt.c
clocksource/drivers/imx-gpt: Remove unnecessary irq protection
2018-12-18 22:22:23 +01:00
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
clocksource/drivers/timer-imx-tpm: Specify clock name for timer-of
2018-12-18 22:22:23 +01:00
timer-integrator-ap.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
timer-ixp4xx.c
clocksource/drivers/ixp4xx: Implement delay timer
2019-06-25 19:49:18 +02:00
timer-keystone.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
timer-lpc32xx.c
clocksource/drivers: Unify the names to timer-* format
2018-10-03 14:37:02 +02:00
timer-mediatek.c
clocksource/drivers/mediatek: Fix error handling
2019-10-16 17:04:50 +02:00
timer-meson6.c
clocksource/drivers/timer-meson6: Update with SPDX Licence identifier
2019-06-25 19:49:18 +02:00
timer-milbeaut.c
clocksource/drivers/timer-milbeaut: Cleanup common register accesses
2019-05-02 21:55:58 +02:00
timer-mp-csky.c
clocksource/drivers/c-sky: fixup ftrace call-graph panic
2018-12-31 23:17:23 +08:00
timer-npcm7xx.c
clocksource/drivers/npcm: Fix GENMASK and timer operation
2019-08-27 00:31:39 +02:00
timer-nps.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
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
clocksource/drivers/timer-of: Store the device node pointer in 'struct timer_of'
2018-01-08 17:57:24 +01:00
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
timer-oxnas-rps.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201
2019-05-30 11:29:52 -07:00
timer-pistachio.c
clocksource/drivers: Unify the names to timer-* format
2018-10-03 14:37:02 +02:00
timer-prima2.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4
2019-05-21 11:28:40 +02:00
timer-probe.c
clocksource/drivers: Do not warn on probe defer
2019-08-27 00:31:39 +02:00
timer-pxa.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
timer-qcom.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
timer-rda.c
clocksource/drivers/rda: Add clock driver for RDA8810PL SoC
2018-12-18 22:22:23 +01:00
timer-riscv.c
clocksource: riscv: add notrace to riscv_sched_clock
2020-01-09 10:19:59 +01:00
timer-rockchip.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
timer-sp804.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
timer-sp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
timer-sprd.c
clocksource/drivers/sprd: Register one always-on timer to compensate suspend time
2018-07-26 11:26:34 +02:00
timer-stm32.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
timer-sun4i.c
clocksource: sun4i: Add missing compatibles
2019-08-27 00:31:39 +02:00
timer-sun5i.c
clocksource/drivers/sun5i: Fail gracefully when clock rate is unavailable
2019-02-23 12:13:45 +01:00
timer-tango-xtal.c
clocksource/drivers/tango-xtal: Rename the file for consistency
2019-02-23 12:13:45 +01:00
timer-tegra.c
clocksource/drivers/tegra: Set up maximum-ticks limit properly
2019-06-25 19:49:18 +02:00
timer-ti-32k.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 341
2019-06-05 17:37:07 +02:00
timer-ti-dm.c
clocksource/drivers/timer-ti-dm: Change to new style declaration
2019-05-24 15:51:30 +02:00
timer-u300.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
timer-versatile.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
timer-vf-pit.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
timer-vt8500.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
timer-zevio.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00