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Fu Wei 5d3dfa96c7 clocksource: arm_arch_timer: split dt-only rate handling 
For historical reasons, rate detection when probing via DT is somewhat
convoluted. We tried to package this up in arch_timer_detect_rate(), but
with the addition of ACPI worse, and gets in the way of stringent rate
checking when ACPI is used.

This patch makes arch_timer_detect_rate() specific to DT, ripping out
ACPI logic. In preparation for rework of the MMIO timer probing, the
reading of the relevant CNTFRQ register is factored out to callers. The
function is then renamed to arch_timer_of_configure_rate(), which better
represents its new place in the world.

Comments are added in the DT and ACPI probe paths to explain this.

Signed-off-by: Fu Wei <fu.wei@linaro.org>
[Mark: reword commit message]
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
2017-04-19 16:11:37 +01:00
..
acpi_pm.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
arc_timer.c
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-12-25 14:30:04 -08:00
arm_arch_timer.c
clocksource: arm_arch_timer: split dt-only rate handling
2017-04-19 16:11:37 +01:00
arm_global_timer.c
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-12-25 14:30:04 -08:00
armv7m_systick.c
clocksource/drivers/armv7m_systick: Add the COMPILE_TEST option
2016-06-28 10:22:05 +02:00
asm9260_timer.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
bcm2835_timer.c
clocksource/drivers/bcm2835_timer: Unmap region obtained by of_iomap
2016-11-22 09:22:59 +01:00
bcm_kona_timer.c
clocksource/drivers/kona: Fix get_counter() error handling
2016-08-17 13:08:31 +02:00
cadence_ttc_timer.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
clkevt-probe.c
clockevents: Add a clkevt-of mechanism like clksrc-of
2017-02-07 20:58:30 +01:00
clksrc_st_lpc.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
clksrc-dbx500-prcmu.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
clksrc-probe.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
clps711x-timer.c
ARM: SoC driver updates for v4.8
2016-08-01 18:36:01 -04:00
cs5535-clockevt.c
clockevents/drivers/cs5535: Migrate to new 'set-state' interface
2015-08-06 12:16:42 +02:00
dummy_timer.c
cpu/hotplug: Cleanup state names
2016-12-25 10:47:44 +01:00
dw_apb_timer_of.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
dw_apb_timer.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
em_sti.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
exynos_mct.c
clocksource/exynos_mct: Clear interrupt when cpu is shut down
2017-01-17 10:08:38 +01:00
fsl_ftm_timer.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
h8300_timer8.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
h8300_timer16.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
h8300_tpu.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
i8253.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
jcore-pit.c
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-12-25 14:30:04 -08:00
Kconfig
arm64: arch_timer: Workaround for Cortex-A73 erratum 858921
2017-04-07 11:22:10 +01:00
Makefile
clocksource/drivers/ostm: Add renesas-ostm timer driver
2017-02-07 20:58:30 +01:00
meson6_timer.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
metag_generic.c
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-12-25 14:30:04 -08:00
mips-gic-timer.c
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-12-25 14:30:04 -08:00
mmio.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
moxart_timer.c
clocksource/drivers/moxart: Plug memory and mapping leaks
2016-12-19 11:19:57 +01:00
mps2-timer.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
mtk_timer.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
mxs_timer.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
nomadik-mtu.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
numachip.c
x86/numachip: Fix timer build conflict
2015-09-23 05:39:20 +02:00
pxa_timer.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>
2017-03-02 08:42:27 +01:00
qcom-timer.c
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-12-25 14:30:04 -08:00
renesas-ostm.c
clocksource/drivers/ostm: Add renesas-ostm timer driver
2017-02-07 20:58:30 +01:00
rockchip_timer.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
samsung_pwm_timer.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
scx200_hrt.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
sh_cmt.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
sh_mtu2.c
clocksource/drivers/sh_mtu2: Fix multiple shutdown call issue
2015-10-28 15:22:56 +01:00
sh_tmu.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
sun4i_timer.c
clocksource/drivers/sun4i: Clear interrupts after stopping timer in probe function
2016-08-26 15:56:01 +02:00
tango_xtal.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
tcb_clksrc.c
Revert "clocksource/drivers/tcb_clksrc: Use 32 bit tcb as sched_clock"
2017-03-11 22:03:34 +01:00
tegra20_timer.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
time-armada-370-xp.c
cpu/hotplug: Cleanup state names
2016-12-25 10:47:44 +01:00
time-efm32.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
time-lpc32xx.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
time-orion.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
time-pistachio.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
timer-atlas7.c
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-12-25 14:30:04 -08:00
timer-atmel-pit.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
timer-atmel-st.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
timer-digicolor.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>
2017-03-02 08:42:27 +01:00
timer-gemini.c
clocksource/drivers/gemini: Add driver for the Cortina Gemini
2017-02-07 20:58:30 +01:00
timer-imx-gpt.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
timer-integrator-ap.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
timer-keystone.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
timer-nps.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
timer-oxnas-rps.c
clocksource/drivers/oxnas: Add OX820 compatible
2016-09-12 07:28:46 +02:00
timer-prima2.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
timer-sp804.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
timer-sp.h
ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource
2015-06-02 09:58:18 +01:00
timer-stm32.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
timer-sun5i.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
timer-ti-32k.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
timer-u300.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
versatile.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
vf_pit_timer.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
vt8500_timer.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
zevio-timer.c
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00