Viresh Kumar 804f5b3de3 cpufreq: Don't unregister cpufreq cooling on CPU hotplug ... [ Upstream commit c4d61a529d ] Offlining a CPU and bringing it back online is a common operation and it happens frequently during system suspend/resume, where the non-boot CPUs are hotplugged out during suspend and brought back at resume. The cpufreq core already tries to make this path as fast as possible as the changes are only temporary in nature and full cleanup of resources isn't required in this case. For example the drivers can implement online()/offline() callbacks to avoid a lot of tear down of resources. On similar lines, there is no need to unregister the cpufreq cooling device during suspend / resume, but only while the policy is getting removed. Moreover, unregistering the cpufreq cooling device is resulting in an unwanted outcome, where the system suspend is eventually aborted in the process. Currently, during system suspend the cpufreq core unregisters the cooling device, which in turn removes a kobject using device_del() and that generates a notification to the userspace via uevent broadcast. This causes system suspend to abort in some setups. This was also earlier reported (indirectly) by Roman [1]. Maybe there is another way around to fixing that problem properly, but this change makes sense anyways. Move the registering and unregistering of the cooling device to policy creation and removal times onlyy. Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218521 Reported-by: Manaf Meethalavalappu Pallikunhi <quic_manafm@quicinc.com> Reported-by: Roman Stratiienko <r.stratiienko@gmail.com> Link: https://patchwork.kernel.org/project/linux-pm/patch/20220710164026.541466-1-r.stratiienko@gmail.com/ [1] Tested-by: Manaf Meethalavalappu Pallikunhi <quic_manafm@quicinc.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Dhruva Gole <d-gole@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-04-13 13:10:01 +02:00
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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 min_perf assignment in amd_pstate_adjust_perf()	2024-04-03 15:32:04 +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: Fix parameter type warning	2023-12-18 11:22:57 +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: add check for cpufreq_cpu_get's return value	2024-03-26 18:16:32 -04:00
cppc_cpufreq.c	cpufreq/cppc: Move and rename cppc_cpufreq_{perf_to_khz|khz_to_perf}()	2023-12-23 15:52:35 +01:00
cpufreq_conservative.c	cpufreq: conservative: Simplify the condition of storing 'down_threshold'	2023-10-06 21:55:13 +02:00
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	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
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: Fix buffer overflow detection in trans_stats()	2023-10-24 22:02:06 +02:00
cpufreq_userspace.c	cpufreq: userspace: Move is_managed indicator into per-policy structure	2023-10-06 22:01:26 +02:00
cpufreq-dt-platdev.c	cpufreq: qcom-nvmem: Introduce cpufreq for ipq95xx	2023-11-02 11:04:53 +05:30
cpufreq-dt.c	cpufreq: dt: always allocate zeroed cpumask	2024-04-03 15:32:24 +02:00
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: Don't unregister cpufreq cooling on CPU hotplug	2024-04-13 13:10:01 +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	cpufreq: Fix per-policy boost behavior on SoCs using cpufreq_boost_set_sw()	2024-03-26 18:17:32 -04:00
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
imx6q-cpufreq.c	cpufreq: imx6q: Don't disable 792 Mhz OPP unnecessarily	2023-11-23 12:50:40 +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: fix pstate limits enforcement for adjust_perf call back	2024-02-24 15:01:59 +01:00
Kconfig	arch: Remove Itanium (IA-64) architecture	2023-09-11 08:13:17 +00:00
Kconfig.arm	cpufreq: qcom-hw: add CONFIG_COMMON_CLK dependency	2024-03-26 18:16:44 -04:00
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	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166	2019-05-30 11:26:39 -07:00
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	arch: Remove Itanium (IA-64) architecture	2023-09-11 08:13:17 +00:00
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: Don't error out if supply is not found	2024-03-26 18:16:34 -04:00
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	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166	2019-05-30 11:26:39 -07:00
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	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 347	2019-06-05 17:37:08 +02:00
powernv-cpufreq.c	cpufreq: Introducing CPUFREQ_RELATION_E	2021-10-05 16:33:05 +02:00
ppc_cbe_cpufreq_pervasive.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153	2019-05-30 11:26:32 -07:00
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: Preserve PM domain votes in system suspend	2023-11-23 13:08:01 +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: scmi: process the result of devm_of_clk_add_hw_provider()	2023-12-06 11:40:11 +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	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166	2019-05-30 11:26:39 -07:00
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: remove redundant AND with cpu_online_mask	2023-10-10 11:06:03 +05:30
ti-cpufreq.c	cpufreq: ti-cpufreq: Add opp support for am62p5 SoCs	2023-10-12 09:10:22 +05:30
vexpress-spc-cpufreq.c	cpufreq: vexpress: Convert to platform remove callback returning void	2023-07-20 16:02:12 +05:30