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linux/drivers/cpufreq
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Sumit Gupta a60a556788 cpufreq: tegra194: use refclk delta based loop instead of udelay 
Use reference clock count based loop instead of "udelay()" for
sampling of counters to improve the accuracy of re-generated CPU
frequency. "udelay()" internally calls "WFE" which stops the
counters and results in bigger delta between the last set freq
and the re-generated value from counters. The counter sampling
window used in loop is the minimum number of reference clock
cycles which is known to give a stable value of CPU frequency.
The change also helps to reduce the sampling window from "500us"
to "<50us".

Suggested-by: Antti Miettinen <amiettinen@nvidia.com>
Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-10-10 11:03:03 +05:30
..
acpi-cpufreq.c
cpufreq: acpi: Convert to platform remove callback returning void
2023-07-20 16:02:13 +05:30
amd_freq_sensitivity.c
cpufreq: amd_freq_sensitivity: Add missing pci_dev_put()
2022-11-30 19:50:04 +01:00
amd-pstate-trace.c
cpufreq: amd-pstate: Add trace for AMD P-State module
2021-12-30 18:51:39 +01:00
amd-pstate-trace.h
cpufreq: amd-pstate: Add more tracepoint for AMD P-State module
2022-03-09 19:53:01 +01:00
amd-pstate-ut.c
ARM cpufreq updates for 6.6
2023-08-28 14:12:05 +02:00
amd-pstate.c
cpufreq: amd-pstate: fix global sysfs attribute type
2023-08-07 19:41:48 +02:00
apple-soc-cpufreq.c
cpufreq: apple-soc: Fix an IS_ERR() vs NULL check
2023-03-01 19:34:54 +01:00
armada-8k-cpufreq.c
cpufreq: armada-8k: add ap807 support
2023-06-19 09:50:31 +05:30
armada-37xx-cpufreq.c
cpufreq: Explicitly include correct DT includes
2023-07-20 16:01:57 +05:30
bmips-cpufreq.c
cpufreq: bmips-cpufreq: Use module_init and add module_exit
2022-08-30 13:49:23 +05:30
brcmstb-avs-cpufreq.c
cpufreq: brcmstb-avs-cpufreq: Fix -Warray-bounds bug
2023-08-03 11:25:04 +05:30
cppc_cpufreq.c
cpufreq: cppc: Set fie_disabled to FIE_DISABLED if fails to create kworker_fie
2023-08-17 14:24:58 +05:30
cpufreq_conservative.c
cpufreq: unify show() and store() naming and use __ATTR_XX
2022-03-10 19:55:05 +01:00
cpufreq_governor_attr_set.c
cpufreq: Move to_gov_attr_set() to cpufreq.h
2022-02-04 19:22:34 +01:00
cpufreq_governor.c
cpufreq: governor: Free dbs_data directly when gov->init() fails
2023-08-29 20:21:35 +02:00
cpufreq_governor.h
cpufreq: governor: Use kobject release() method to free dbs_data
2022-04-13 15:22:41 +02:00
cpufreq_ondemand.c
cpufreq: ondemand: Use cpumask_var_t for on-stack cpu mask
2022-07-25 20:38:01 +02:00
cpufreq_ondemand.h
…
cpufreq_performance.c
cpufreq: Introduce CPUFREQ_GOV_STRICT_TARGET
2020-11-10 18:31:17 +01:00
cpufreq_powersave.c
cpufreq: Introduce CPUFREQ_GOV_STRICT_TARGET
2020-11-10 18:31:17 +01:00
cpufreq_stats.c
cpufreq: stats: Improve the performance of cpufreq_stats_create_table()
2023-08-21 20:57:30 +02:00
cpufreq_userspace.c
cpufreq: Register governors at core_initcall
2020-07-02 13:03:30 +02:00
cpufreq-dt-platdev.c
cpufreq: dt: platdev: Add MSM8909 to blocklist
2023-09-28 12:22:03 +05:30
cpufreq-dt.c
cpufreq: dt: Convert to platform remove callback returning void
2023-07-20 16:02:12 +05:30
cpufreq-dt.h
cpufreq: dt: Allow platform specific intermediate callbacks
2020-03-12 15:43:52 +05:30
cpufreq-nforce2.c
cpufreq: Avoid creating excessively large stack frames
2020-01-27 10:33:33 +01:00
cpufreq.c
cpufreq: Support per-policy performance boost
2023-08-29 20:51:40 +02:00
davinci-cpufreq.c
cpufreq: davinci: Convert to platform remove callback returning void
2023-07-20 16:02:13 +05:30
e_powersaver.c
cpufreq: e_powersaver: remove unreachable break
2020-10-27 18:42:54 +01:00
elanfreq.c
cpufreq: Convert to new X86 CPU match macros
2020-03-24 21:31:27 +01:00
freq_table.c
Updates for 6.4
2023-04-20 19:30:01 +02:00
gx-suspmod.c
cpufreq: Avoid creating excessively large stack frames
2020-01-27 10:33:33 +01:00
highbank-cpufreq.c
cpufreq: Add __init annotation to module init funcs
2022-09-26 11:15:04 +05:30
ia64-acpi-cpufreq.c
ia64: fix format string for ia64-acpi-cpu-freq
2021-03-19 17:26:20 +01:00
imx6q-cpufreq.c
cpufreq: imx6q: Convert to platform remove callback returning void
2023-07-20 16:02:12 +05:30
imx-cpufreq-dt.c
cpufreq: imx-cpufreq-dt: Convert to platform remove callback returning void
2023-07-20 16:02:13 +05:30
intel_pstate.c
cpufreq: intel_pstate: set stale CPU frequency to minimum
2023-08-21 21:11:40 +02:00
Kconfig
cpufreq: Make CONFIG_CPUFREQ_DT_PLATDEV depend on OF
2023-06-30 09:43:43 +02:00
Kconfig.arm
cpufreq: Fix typo in the ARM_BRCMSTB_AVS_CPUFREQ Kconfig entry
2023-03-22 20:14:37 +01:00
Kconfig.powerpc
cpufreq: Fix Kconfig indentation
2019-11-29 11:52:02 +01:00
Kconfig.x86
cpufreq: amd-pstate: Add a kernel config option to set default mode
2023-06-21 18:44:56 +02:00
kirkwood-cpufreq.c
cpufreq: kirkwood: Convert to platform remove callback returning void
2023-07-20 16:02:13 +05:30
longhaul.c
cpufreq: longhaul: Make array speeds static const
2022-11-03 19:13:34 +01:00
longhaul.h
…
longrun.c
cpufreq: Convert to new X86 CPU match macros
2020-03-24 21:31:27 +01:00
loongson2_cpufreq.c
cpufreq: loongson2: Remove unused linux/sched.h headers
2021-06-07 17:43:52 +02:00
Makefile
Power management updates for 6.3-rc1
2023-02-21 12:13:58 -08:00
maple-cpufreq.c
cpufreq: Adjust includes to remove of_device.h
2023-04-13 17:46:35 -05:00
mediatek-cpufreq-hw.c
cpufreq: mediatek-hw: Convert to platform remove callback returning void
2023-07-20 16:02:12 +05:30
mediatek-cpufreq.c
cpufreq: mediatek-hw: Remove unused define
2023-08-11 06:15:21 +05:30
mvebu-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2)
2022-06-10 14:51:35 +02:00
omap-cpufreq.c
cpufreq: omap: Convert to platform remove callback returning void
2023-07-20 16:02:14 +05:30
p4-clockmod.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
pasemi-cpufreq.c
cpufreq: Prepare cleanup of powerpc's asm/prom.h
2022-04-13 17:18:45 +02:00
pcc-cpufreq.c
cpufreq: pcc: Fix the potentinal scheduling delays in target_index()
2023-08-29 20:41:29 +02:00
pmac32-cpufreq.c
cpufreq: pmac32: Use of_property_read_reg() to parse "reg"
2023-09-27 16:47:09 +05:30
pmac64-cpufreq.c
cpufreq: Adjust includes to remove of_device.h
2023-04-13 17:46:35 -05:00
powernow-k6.c
cpufreq: Convert to new X86 CPU match macros
2020-03-24 21:31:27 +01:00
powernow-k7.c
cpufreq: Convert to new X86 CPU match macros
2020-03-24 21:31:27 +01:00
powernow-k7.h
…
powernow-k8.c
cpufreq: powernow-k8: Use related_cpus instead of cpus in driver.exit()
2023-08-28 12:27:30 +05:30
powernow-k8.h
…
powernv-cpufreq.c
cpufreq: Introducing CPUFREQ_RELATION_E
2021-10-05 16:33:05 +02:00
ppc_cbe_cpufreq_pervasive.c
…
ppc_cbe_cpufreq_pmi.c
cpufreq: Explicitly include correct DT includes
2023-07-20 16:01:57 +05:30
ppc_cbe_cpufreq.c
cpufreq: Explicitly include correct DT includes
2023-07-20 16:01:57 +05:30
ppc_cbe_cpufreq.h
cpufreq: powerpc_cbe: Switch to QoS requests for freq limits
2019-08-26 10:02:01 +02:00
pxa2xx-cpufreq.c
cpufreq: pxa3: move clk register access to clk driver
2022-05-07 22:55:49 +02:00
pxa3xx-cpufreq.c
cpufreq: pxa3: move clk register access to clk driver
2022-05-07 22:55:49 +02:00
qcom-cpufreq-hw.c
cpufreq: qcom-cpufreq-hw: add support for 4 freq domains
2023-08-23 20:31:08 +05:30
qcom-cpufreq-nvmem.c
cpufreq: qcom-nvmem: Convert to platform remove callback returning void
2023-07-20 16:02:13 +05:30
qoriq-cpufreq.c
cpufreq: qoriq: Convert to platform remove callback returning void
2023-07-20 16:02:13 +05:30
raspberrypi-cpufreq.c
cpufreq: raspberrypi: Convert to platform remove callback returning void
2023-07-20 16:02:13 +05:30
s3c64xx-cpufreq.c
cpufreq: s3c64xx: Remove pointless NULL check in s3c64xx_cpufreq_driver_init
2019-10-23 08:53:23 +05:30
s5pv210-cpufreq.c
cpufreq: Introducing CPUFREQ_RELATION_E
2021-10-05 16:33:05 +02:00
sa1110-cpufreq.c
ARM: sa1100: remove unused board files
2023-01-12 10:53:12 +01:00
sc520_freq.c
cpufreq: sc520_freq: add 'fallthrough' to one case
2021-05-21 18:52:13 +02:00
scmi-cpufreq.c
cpufreq: Use of_property_present() for testing DT property presence
2023-03-13 09:58:11 +05:30
scpi-cpufreq.c
cpufreq: scpi: Convert to platform remove callback returning void
2023-07-20 16:02:12 +05:30
sh-cpufreq.c
cpufreq: sh: Remove sh_cpufreq_cpu_ready()
2021-09-02 18:04:17 +02:00
sparc-us2e-cpufreq.c
cpufreq: sparc: Don't mark cpufreq callbacks with __init
2023-07-12 12:45:18 +02:00
sparc-us3-cpufreq.c
cpufreq: sparc: Don't mark cpufreq callbacks with __init
2023-07-12 12:45:18 +02:00
spear-cpufreq.c
cpufreq: Adjust includes to remove of_device.h
2023-04-13 17:46:35 -05:00
speedstep-centrino.c
cpufreq: Convert to new X86 CPU match macros
2020-03-24 21:31:27 +01:00
speedstep-ich.c
cpufreq: Convert to new X86 CPU match macros
2020-03-24 21:31:27 +01:00
speedstep-lib.c
cpufreq: speedstep: remove unneeded semicolon
2020-10-28 18:04:07 +01:00
speedstep-lib.h
…
speedstep-smi.c
cpufreq: Convert to new X86 CPU match macros
2020-03-24 21:31:27 +01:00
sti-cpufreq.c
cpufreq: Explicitly include correct DT includes
2023-07-20 16:01:57 +05:30
sun50i-cpufreq-nvmem.c
cpufreq: sun50i: Convert to platform remove callback returning void
2023-07-20 16:02:12 +05:30
tegra20-cpufreq.c
Devicetree updates for v6.4, part 2:
2023-04-27 10:09:05 -07:00
tegra124-cpufreq.c
Devicetree updates for v6.4, part 2:
2023-04-27 10:09:05 -07:00
tegra186-cpufreq.c
cpufreq: tegra186: Convert to platform remove callback returning void
2023-07-20 16:02:13 +05:30
tegra194-cpufreq.c
cpufreq: tegra194: use refclk delta based loop instead of udelay
2023-10-10 11:03:03 +05:30
ti-cpufreq.c
cpufreq: Explicitly include correct DT includes
2023-07-20 16:01:57 +05:30
vexpress-spc-cpufreq.c
cpufreq: vexpress: Convert to platform remove callback returning void
2023-07-20 16:02:12 +05:30