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* Merge tag 'pm-5.20-rc1-2' of ↵Linus Torvalds2022-08-0811-174/+103
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management updates from Rafael Wysocki: "These are ARM cpufreq updates and operating performance points (OPP) updates plus one cpuidle update adding a new trace point. Specifics: - Fix return error code in mtk_cpu_dvfs_info_init (Yang Yingliang). - Minor cleanups and support for new boards for Qcom cpufreq drivers (Bryan O'Donoghue, Konrad Dybcio, Pierre Gondois, and Yicong Yang). - Fix sparse warnings for Tegra cpufreq driver (Viresh Kumar). - Make dev_pm_opp_set_regulators() accept NULL terminated list (Viresh Kumar). - Add dev_pm_opp_set_config() and friends and migrate other users and helpers to using them (Viresh Kumar). - Add support for multiple clocks for a device (Viresh Kumar and Krzysztof Kozlowski). - Configure resources before adding OPP table for Venus (Stanimir Varbanov). - Keep reference count up for opp->np and opp_table->np while they are still in use (Liang He). - Minor OPP cleanups (Viresh Kumar and Yang Li). - Add a trace event for cpuidle to track missed (too deep or too shallow) wakeups (Kajetan Puchalski)" * tag 'pm-5.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (55 commits) cpuidle: Add cpu_idle_miss trace event venus: pm_helpers: Fix warning in OPP during probe OPP: Don't drop opp->np reference while it is still in use OPP: Don't drop opp_table->np reference while it is still in use cpufreq: tegra194: Staticize struct tegra_cpufreq_soc instances dt-bindings: cpufreq: cpufreq-qcom-hw: Add SM6375 compatible dt-bindings: opp: Add msm8939 to the compatible list dt-bindings: opp: Add missing compat devices dt-bindings: opp: opp-v2-kryo-cpu: Fix example binding checks cpufreq: Change order of online() CB and policy->cpus modification cpufreq: qcom-hw: Remove deprecated irq_set_affinity_hint() call cpufreq: qcom-hw: Disable LMH irq when disabling policy cpufreq: qcom-hw: Reset cancel_throttle when policy is re-enabled cpufreq: qcom-cpufreq-hw: use HZ_PER_KHZ macro in units.h cpufreq: mediatek: fix error return code in mtk_cpu_dvfs_info_init() OPP: Remove dev{m}_pm_opp_of_add_table_noclk() PM / devfreq: tegra30: Register config_clks helper OPP: Allow config_clks helper for single clk case OPP: Provide a simple implementation to configure multiple clocks OPP: Assert clk_count == 1 for single clk helpers ...
| * Merge branch 'pm-cpufreq'Rafael J. Wysocki2022-08-084-10/+15
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge ARM cpufreq updates for 5.20-rc1. * pm-cpufreq: cpufreq: tegra194: Staticize struct tegra_cpufreq_soc instances dt-bindings: cpufreq: cpufreq-qcom-hw: Add SM6375 compatible dt-bindings: opp: Add msm8939 to the compatible list dt-bindings: opp: Add missing compat devices dt-bindings: opp: opp-v2-kryo-cpu: Fix example binding checks cpufreq: Change order of online() CB and policy->cpus modification cpufreq: qcom-hw: Remove deprecated irq_set_affinity_hint() call cpufreq: qcom-hw: Disable LMH irq when disabling policy cpufreq: qcom-hw: Reset cancel_throttle when policy is re-enabled cpufreq: qcom-cpufreq-hw: use HZ_PER_KHZ macro in units.h cpufreq: mediatek: fix error return code in mtk_cpu_dvfs_info_init()
| | * Merge tag 'cpufreq-arm-updates-5.20-rc1' of ↵Rafael J. Wysocki2022-08-034-10/+15
| | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm Pull cpufreq/ARM updates for 5.20-rc1 from Viresh Kumar: "- Fix return error code in mtk_cpu_dvfs_info_init (Yang Yingliang). - Minor cleanups and support for new boards for Qcom cpufreq drivers (Bryan O'Donoghue, Konrad Dybcio, Pierre Gondois, and Yicong Yang). - Fix sparse warnings for Tegra driver (Viresh Kumar)." * tag 'cpufreq-arm-updates-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: cpufreq: tegra194: Staticize struct tegra_cpufreq_soc instances dt-bindings: cpufreq: cpufreq-qcom-hw: Add SM6375 compatible dt-bindings: opp: Add msm8939 to the compatible list dt-bindings: opp: Add missing compat devices dt-bindings: opp: opp-v2-kryo-cpu: Fix example binding checks cpufreq: Change order of online() CB and policy->cpus modification cpufreq: qcom-hw: Remove deprecated irq_set_affinity_hint() call cpufreq: qcom-hw: Disable LMH irq when disabling policy cpufreq: qcom-hw: Reset cancel_throttle when policy is re-enabled cpufreq: qcom-cpufreq-hw: use HZ_PER_KHZ macro in units.h cpufreq: mediatek: fix error return code in mtk_cpu_dvfs_info_init()
| | | * cpufreq: tegra194: Staticize struct tegra_cpufreq_soc instancesViresh Kumar2022-07-181-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix sparse warnings by marking these structures static. Fixes: 273bc890a2a8 ("cpufreq: tegra194: Add support for Tegra234") Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Sumit Gupta <sumitg@nvidia.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| | | * cpufreq: Change order of online() CB and policy->cpus modificationPierre Gondois2022-07-181-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From a state where all policy->related_cpus are offline, putting one of the policy's CPU back online re-activates the policy by: 1. Calling cpufreq_driver->online() 2. Setting the CPU in policy->cpus qcom_cpufreq_hw_cpu_online() makes use of policy->cpus. Thus 1. and 2. should be inverted to avoid having a policy->cpus empty. The qcom-cpufreq-hw is the only driver affected by this. Signed-off-by: Pierre Gondois <pierre.gondois@arm.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| | | * cpufreq: qcom-hw: Remove deprecated irq_set_affinity_hint() callPierre Gondois2022-07-131-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 65c7cdedeb30 ("genirq: Provide new interfaces for affinity hints") deprecates irq_set_affinity_hint(). Use the new irq_set_affinity_and_hint() instead. Signed-off-by: Pierre Gondois <pierre.gondois@arm.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| | | * cpufreq: qcom-hw: Disable LMH irq when disabling policyPierre Gondois2022-07-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If LMH (Limits Management Hardware) is available, when a policy is disabled by unplugging the last online CPU of policy->cpus, the LMH irq is left enabled. When the policy is re-enabled with any of the CPU in policy->cpus being plugged in, qcom_cpufreq_ready() re-enables the irq. This triggers the following warning: [ 379.160106] Unbalanced enable for IRQ 154 [ 379.160120] WARNING: CPU: 7 PID: 48 at kernel/irq/manage.c:774 __enable_irq+0x84/0xc0 Thus disable the irq. Signed-off-by: Pierre Gondois <pierre.gondois@arm.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| | | * cpufreq: qcom-hw: Reset cancel_throttle when policy is re-enabledPierre Gondois2022-07-131-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If LMH (Limits Management Hardware) is available, when a policy is disabled by unplugging the last online CPU of policy->cpus, qcom_cpufreq_hw_cpu_offline() sets cancel_throttle=true. cancel_throttle is not reset when the policy is re-enabled with any of the CPU in policy->cpus being plugged in. So reset it. This patch also adds an early exit check. Signed-off-by: Pierre Gondois <pierre.gondois@arm.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| | | * cpufreq: qcom-cpufreq-hw: use HZ_PER_KHZ macro in units.hYicong Yang2022-07-131-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | HZ macros has been centralized in units.h since [1]. Use it to avoid duplicated definition. [1] commit e2c77032fcbe ("units: add the HZ macros") Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| | | * cpufreq: mediatek: fix error return code in mtk_cpu_dvfs_info_init()Yang Yingliang2022-07-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If regulator_get_voltage() fails, it should return the error code in mtk_cpu_dvfs_info_init(). Fixes: 0daa47325bae ("cpufreq: mediatek: Link CCI device to CPU") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| * | | Merge tag 'opp-updates-5.20-rc1' of ↵Rafael J. Wysocki2022-08-037-164/+88
| |\ \ \ | | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm Pull operating performance points (OPP) updates for 5.20-rc1 from Viresh Kumar: "- Make dev_pm_opp_set_regulators() accept NULL terminated list (Viresh Kumar). - Add dev_pm_opp_set_config() and friends and migrate other users/helpers to using them (Viresh Kumar). - Add support for multiple clocks for a device (Viresh Kumar and Krzysztof Kozlowski). - Configure resources before adding OPP table for Venus (Stanimir Varbanov). - Keep reference count up for opp->np and opp_table->np while they are still in use (Liang He). - Minor cleanups (Viresh Kumar and Yang Li)." * tag 'opp-updates-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: (43 commits) venus: pm_helpers: Fix warning in OPP during probe OPP: Don't drop opp->np reference while it is still in use OPP: Don't drop opp_table->np reference while it is still in use OPP: Remove dev{m}_pm_opp_of_add_table_noclk() PM / devfreq: tegra30: Register config_clks helper OPP: Allow config_clks helper for single clk case OPP: Provide a simple implementation to configure multiple clocks OPP: Assert clk_count == 1 for single clk helpers OPP: Add key specific assert() method to key finding helpers OPP: Compare bandwidths for all paths in _opp_compare_key() OPP: Allow multiple clocks for a device dt-bindings: opp: accept array of frequencies OPP: Make dev_pm_opp_set_opp() independent of frequency OPP: Reuse _opp_compare_key() in _opp_add_static_v2() OPP: Remove rate_not_available parameter to _opp_add() OPP: Use consistent names for OPP table instances OPP: Use generic key finding helpers for bandwidth key OPP: Use generic key finding helpers for level key OPP: Add generic key finding helpers and use them for freq APIs OPP: Remove dev_pm_opp_find_freq_ceil_by_volt() ...
| | * | OPP: Migrate set-prop-name helper API to use set-config helpersViresh Kumar2022-07-081-17/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we have a central API to handle all OPP table configurations, migrate the set-prop-name family of helpers to use the new infrastructure. The return type and parameter to the APIs change a bit due to this, update the current users as well in the same commit in order to avoid breaking builds. Acked-by: Samuel Holland <samuel@sholland.org> # sun50i Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| | * | OPP: Migrate set-supported-hw API to use set-config helpersViresh Kumar2022-07-082-13/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we have a central API to handle all OPP table configurations, migrate the set-supported-hw family of helpers to use the new infrastructure. The return type and parameter to the APIs change a bit due to this, update the current users as well in the same commit in order to avoid breaking builds. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| | * | OPP: Migrate set-regulators API to use set-config helpersViresh Kumar2022-07-081-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we have a central API to handle all OPP table configurations, migrate the set-regulators family of helpers to use the new infrastructure. The return type and parameter to the APIs change a bit due to this, update the current users as well in the same commit in order to avoid breaking builds. Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| | * | cpufreq: ti: Migrate to dev_pm_opp_set_config()Viresh Kumar2022-07-081-23/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The OPP core now provides a unified API for setting all configuration types, i.e. dev_pm_opp_set_config(). Lets start using it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| | * | cpufreq: sti: Migrate to dev_pm_opp_set_config()Viresh Kumar2022-07-081-17/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The OPP core now provides a unified API for setting all configuration types, i.e. dev_pm_opp_set_config(). Lets start using it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| | * | cpufreq: qcom-nvmem: Migrate to dev_pm_opp_set_config()Viresh Kumar2022-07-081-81/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The OPP core now provides a unified API for setting all configuration types, i.e. dev_pm_opp_set_config(). Lets start using it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| | * | OPP: Make dev_pm_opp_set_regulators() accept NULL terminated listViresh Kumar2022-07-082-9/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make dev_pm_opp_set_regulators() accept a NULL terminated list of names instead of making the callers keep the two parameters in sync, which creates an opportunity for bugs to get in. Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Steven Price <steven.price@arm.com> # panfrost Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
* | | | Merge tag 'spdx-6.0-rc1' of ↵Linus Torvalds2022-08-042-13/+2
|\ \ \ \ | |/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx Pull SPDX updates from Greg KH: "Here is the set of SPDX comment updates for 6.0-rc1. Nothing huge here, just a number of updated SPDX license tags and cleanups based on the review of a number of common patterns in GPLv2 boilerplate text. Also included in here are a few other minor updates, two USB files, and one Documentation file update to get the SPDX lines correct. All of these have been in the linux-next tree for a very long time" * tag 'spdx-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (28 commits) Documentation: samsung-s3c24xx: Add blank line after SPDX directive x86/crypto: Remove stray comment terminator treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_406.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_398.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_391.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_390.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_385.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_320.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_319.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_318.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_298.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_292.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_179.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_168.RULE (part 2) treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_168.RULE (part 1) treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_160.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_152.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_149.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_147.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_133.RULE ...
| * | | treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_320.RULEThomas Gleixner2022-06-101-9/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on the normalized pattern: this program is free software you can redistribute it and/or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed as is without any warranty of any kind whether express or implied without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference. Reviewed-by: Allison Randal <allison@lohutok.net> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE ↵Thomas Gleixner2022-06-101-4/+1
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (part 2) Based on the normalized pattern: this file is licensed under the terms of the gnu general public license version 2 this program is licensed as is without any warranty of any kind whether express or implied extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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*---. \ \ Merge branches 'pm-core', 'pm-sleep', 'powercap', 'pm-domains' and 'pm-em'Rafael J. Wysocki2022-07-292-5/+17
|\ \ \ \ \ | | |_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge core device power management changes for v5.20-rc1: - Extend support for wakeirq to callback wrappers used during system suspend and resume (Ulf Hansson). - Defer waiting for device probe before loading a hibernation image till the first actual device access to avoid possible deadlocks reported by syzbot (Tetsuo Handa). - Unify device_init_wakeup() for PM_SLEEP and !PM_SLEEP (Bjorn Helgaas). - Add Raptor Lake-P to the list of processors supported by the Intel RAPL driver (George D Sworo). - Add Alder Lake-N and Raptor Lake-P to the list of processors for which Power Limit4 is supported in the Intel RAPL driver (Sumeet Pawnikar). - Make pm_genpd_remove() check genpd_debugfs_dir against NULL before attempting to remove it (Hsin-Yi Wang). - Change the Energy Model code to represent power in micro-Watts and adjust its users accordingly (Lukasz Luba). * pm-core: PM: runtime: Extend support for wakeirq for force_suspend|resume * pm-sleep: PM: hibernate: defer device probing when resuming from hibernation PM: wakeup: Unify device_init_wakeup() for PM_SLEEP and !PM_SLEEP * powercap: powercap: RAPL: Add Power Limit4 support for Alder Lake-N and Raptor Lake-P powercap: intel_rapl: Add support for RAPTORLAKE_P * pm-domains: PM: domains: Ensure genpd_debugfs_dir exists before remove * pm-em: cpufreq: scmi: Support the power scale in micro-Watts in SCMI v3.1 firmware: arm_scmi: Get detailed power scale from perf Documentation: EM: Switch to micro-Watts scale PM: EM: convert power field to micro-Watts precision and align drivers
| | | * | cpufreq: scmi: Support the power scale in micro-Watts in SCMI v3.1Lukasz Luba2022-07-151-5/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The SCMI v3.1 adds support for power values in micro-Watts. They are not always in milli-Watts anymore (ignoring the bogo-Watts). Thus, the power must be converted conditionally before sending to Energy Model. Add the logic which handles the needed checks and conversions. Acked-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | | * | PM: EM: convert power field to micro-Watts precision and align driversLukasz Luba2022-07-152-3/+10
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The milli-Watts precision causes rounding errors while calculating efficiency cost for each OPP. This is especially visible in the 'simple' Energy Model (EM), where the power for each OPP is provided from OPP framework. This can cause some OPPs to be marked inefficient, while using micro-Watts precision that might not happen. Update all EM users which access 'power' field and assume the value is in milli-Watts. Solve also an issue with potential overflow in calculation of energy estimation on 32bit machine. It's needed now since the power value (thus the 'cost' as well) are higher. Example calculation which shows the rounding error and impact: power = 'dyn-power-coeff' * volt_mV * volt_mV * freq_MHz power_a_uW = (100 * 600mW * 600mW * 500MHz) / 10^6 = 18000 power_a_mW = (100 * 600mW * 600mW * 500MHz) / 10^9 = 18 power_b_uW = (100 * 605mW * 605mW * 600MHz) / 10^6 = 21961 power_b_mW = (100 * 605mW * 605mW * 600MHz) / 10^9 = 21 max_freq = 2000MHz cost_a_mW = 18 * 2000MHz/500MHz = 72 cost_a_uW = 18000 * 2000MHz/500MHz = 72000 cost_b_mW = 21 * 2000MHz/600MHz = 70 // <- artificially better cost_b_uW = 21961 * 2000MHz/600MHz = 73203 The 'cost_b_mW' (which is based on old milli-Watts) is misleadingly better that the 'cost_b_uW' (this patch uses micro-Watts) and such would have impact on the 'inefficient OPPs' information in the Cpufreq framework. This patch set removes the rounding issue. Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | | | cpufreq: ondemand: Use cpumask_var_t for on-stack cpu maskZhao Liu2022-07-251-4/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A cpumask structure on the stack can cause a warning with CONFIG_NR_CPUS=8192 (e.g. Ubuntu 22.04 uses this): drivers/cpufreq/cpufreq_ondemand.c: In function 'od_set_powersave_bias': drivers/cpufreq/cpufreq_ondemand.c:449:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] 449 | } | ^ CONFIG_CPUMASK_OFFSTACK=y is enabled by default for most distros, and hence we can work around the warning by using cpumask_var_t. Signed-off-by: Zhao Liu <zhao1.liu@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | | | cpufreq: loongson2: fix Kconfig "its" grammarRandy Dunlap2022-07-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the possessive "its" instead of the contraction "it's" where appropriate. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | | | Merge back earlier cpufreq material for 5.20.Rafael J. Wysocki2022-07-182-20/+21
|\ \ \ \
| * | | | cpufreq: Warn users while freeing active policyViresh Kumar2022-07-151-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the new design in place, the show() and store() callbacks check if the policy is active or not before proceeding any further to avoid potential races. And in order to guarantee that cpufreq_policy_free() must be called after clearing the policy->cpus mask, i.e. by marking the policy inactive. In order to avoid introducing a bug around this later, print a warning message if we end up freeing an active policy. Also update cpufreq_online() a bit to make sure we clear the cpus mask for each error case before calling cpufreq_policy_free(). Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | | Merge back earlier cpufreq material for 5.20.Rafael J. Wysocki2022-07-042-18/+13
| |\ \ \ \ | | |_|/ / | |/| | |
| | * | | cpufreq: ACPI: Add Zhaoxin/Centaur turbo boost control interface supportTony W Wang-oc2022-06-291-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Recent Zhaoxin/Centaur CPUs support X86_FEATURE_IDA and the turbo boost can be dynamically enabled or disabled through MSR 0x1a0[38] in the same way as Intel. So add turbo boost control support for these CPUs too. Signed-off-by: Tony W Wang-oc <TonyWWang-oc@zhaoxin.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | cpufreq: Drop unnecessary cpus locking from store()Viresh Kumar2022-06-141-15/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change was introduced long back by commit 4f750c930822 ("cpufreq: Synchronize the cpufreq store_*() routines with CPU hotplug"). Since then, both cpufreq and hotplug core have been reworked and have much better locking in place. The race mentioned in commit 4f750c930822 isn't possible anymore. Drop the unnecessary locking. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | cpufreq: Optimize cpufreq_show_cpus()Viresh Kumar2022-06-141-3/+5
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of specially adding a space for each CPU, except the first one, lets add space for each of them and remove it at the end. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | | | Merge tag 'cpufreq-arm-fixes-5.19-rc7' of ↵Rafael J. Wysocki2022-07-151-2/+6
|\ \ \ \ | |/ / / |/| | / | | |/ | |/| | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm Pull a cpufreq ARM fix for 5.19-rc7 from Viresh Kumar: - mediatek: Handle sram regulator probe deferral * tag 'cpufreq-arm-fixes-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: cpufreq: mediatek: Handle sram regulator probe deferral
| * | cpufreq: mediatek: Handle sram regulator probe deferralAngeloGioacchino Del Regno2022-07-131-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the regulator_get_optional() call for the SRAM regulator returns a probe deferral, we must bail out and retry probing later: failing to do this will produce unstabilities on platforms requiring the handling for this regulator. Fixes: ffa7bdf7f344 ("cpufreq: mediatek: Make sram regulator optional") Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
* | | Merge tag 'cpufreq-arm-fixes-5.19-rc5' of ↵Rafael J. Wysocki2022-06-284-0/+12
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm Pull cpufreq ARM fixes for 5.19-rc5 from Viresh Kumar: - Fix missing of_node_put for qoriq and pmac32 driver (Liang He). - Fix issues around throttle interrupt for qcom driver (Stephen Boyd). - Add MT8186 to cpufreq-dt-platdev blocklist (AngeloGioacchino Del Regno). * tag 'cpufreq-arm-fixes-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: cpufreq: Add MT8186 to cpufreq-dt-platdev blocklist cpufreq: pmac32-cpufreq: Fix refcount leak bug cpufreq: qcom-hw: Don't do lmh things without a throttle interrupt drivers: cpufreq: Add missing of_node_put() in qoriq-cpufreq.c
| * | cpufreq: Add MT8186 to cpufreq-dt-platdev blocklistAngeloGioacchino Del Regno2022-06-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This SoC shall use the mediatek-cpufreq driver, or the system will crash upon any clock scaling request: add it to the cpufreq-dt-platdev blocklist. Fixes: 39b360102f3a ("cpufreq: mediatek: Add support for MT8186") Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| * | cpufreq: pmac32-cpufreq: Fix refcount leak bugLiang He2022-06-281-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | In pmac_cpufreq_init_MacRISC3(), we need to add corresponding of_node_put() for the three node pointers whose refcount have been incremented by of_find_node_by_name(). Signed-off-by: Liang He <windhl@126.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| * | cpufreq: qcom-hw: Don't do lmh things without a throttle interruptStephen Boyd2022-06-281-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Offlining cpu6 and cpu7 and then onlining cpu6 hangs on sc7180-trogdor-lazor because the throttle interrupt doesn't exist. Similarly, things go sideways when suspend/resume runs. That's because the qcom_cpufreq_hw_cpu_online() and qcom_cpufreq_hw_lmh_exit() functions are calling genirq APIs with an interrupt value of '-6', i.e. -ENXIO, and that isn't good. Check the value of the throttle interrupt like we already do in other functions in this file and bail out early from lmh code to fix the hang. Reported-by: Rob Clark <robdclark@chromium.org> Cc: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Fixes: a1eb080a0447 ("cpufreq: qcom-hw: provide online/offline operations") Signed-off-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| * | drivers: cpufreq: Add missing of_node_put() in qoriq-cpufreq.cLiang He2022-06-281-0/+1
| |/ | | | | | | | | | | | | | | | | | | | | In qoriq_cpufreq_probe(), of_find_matching_node() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore. Fixes: 157f527639da ("cpufreq: qoriq: convert to a platform driver") [ Viresh: Fixed Author's name in commit log ] Signed-off-by: Liang He <windhl@126.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
* / cpufreq: amd-pstate: Add resume and suspend callbacksJinzhou Su2022-06-231-0/+24
|/ | | | | | | | | | | | | | | When system resumes from S3, the CPPC enable register will be cleared and reset to 0. So enable the CPPC interface by writing 1 to this register on system resume and disable it during system suspend. Signed-off-by: Jinzhou Su <Jinzhou.Su@amd.com> Signed-off-by: Jinzhou Su <Jinzhou.Su@amd.com> Acked-by: Huang Rui <ray.huang@amd.com> [ rjw: Subject and changelog edits ] Cc: All applicable <stable@vger.kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* Merge tag 'arm-multiplatform-5.19-2' of ↵Linus Torvalds2022-06-032-33/+38
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull more ARM multiplatform updates from Arnd Bergmann: "The second part of the multiplatform changes now converts the Intel/Marvell PXA platform along with the rest. The patches went through several rebases before the merge window as bugs were found, so they remained separate. This has to touch a lot of drivers, in particular the touchscreen, pcmcia, sound and clk bits, to detach the driver files from the platform and board specific header files" * tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (48 commits) ARM: pxa/mmp: remove traces of plat-pxa ARM: pxa: convert to multiplatform ARM: pxa/sa1100: move I/O space to PCI_IOBASE ARM: pxa: remove support for MTD_XIP ARM: pxa: move mach/*.h to mach-pxa/ ARM: PXA: fix multi-cpu build of xsc3 ARM: pxa: move plat-pxa to drivers/soc/ ARM: mmp: rename pxa_register_device ARM: mmp: remove tavorevb board support ARM: pxa: remove unused mach/bitfield.h ARM: pxa: move clk register definitions to driver ARM: pxa: move smemc register access from clk to platform cpufreq: pxa3: move clk register access to clk driver ARM: pxa: remove get_clk_frequency_khz() ARM: pxa: pcmcia: move smemc configuration back to arch ASoC: pxa: i2s: use normal MMIO accessors ASoC: pxa: ac97: use normal MMIO accessors ASoC: pxa: use pdev resource for FIFO regs Input: wm97xx - get rid of irq_enable method in wm97xx_mach_ops Input: wm97xx - switch to using threaded IRQ ...
| * cpufreq: pxa3: move clk register access to clk driverArnd Bergmann2022-05-072-31/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver needs some low-level register access for setting the core and bus frequencies. These registers are owned by the clk driver, so move the low-level access into that driver with a slightly higher-level interface and avoid any machine header file dependencies. Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: linux-clk@vger.kernel.org Cc: linux-pm@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * ARM: pxa: remove get_clk_frequency_khz()Arnd Bergmann2022-05-071-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | get_clk_frequency_khz() is not a proper name for a global function, and there is only one caller. Convert viper to use the properly namespaced pxa25x_get_clk_frequency_khz() and remove the other references. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Cc: linux-pm@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * ARM: pxa: split up mach/hardware.hArnd Bergmann2022-04-192-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mach/hardware.h is included in lots of places, and it provides three different things on pxa: - the cpu_is_pxa* macros - an indirect inclusion of mach/addr-map.h - the __REG() and io_pv2() helper macros Split it up into separate <linux/soc/pxa/cpu.h> and mach/pxa-regs.h headers, then change all the files that use mach/hardware.h to include the exact set of those three headers that they actually need, allowing for further more targeted cleanup. linux/soc/pxa/cpu.h can remain permanently exported and is now in a global location along with similar headers. pxa-regs.h and addr-map.h are only used in a very small number of drivers now and can be moved to arch/arm/mach-pxa/ directly when those drivers are to pass the necessary data as resources. Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com> Cc: Pavel Machek <pavel@ucw.cz> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guenter Roeck <linux@roeck-us.net> Acked-by: Mark Brown <broonie@kernel.org> Cc: linux-clk@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: linux-input@vger.kernel.org Cc: linux-leds@vger.kernel.org Cc: linux-mmc@vger.kernel.org Cc: linux-mtd@lists.infradead.org Cc: linux-rtc@vger.kernel.org Cc: linux-usb@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-fbdev@vger.kernel.org Cc: linux-watchdog@vger.kernel.org Cc: alsa-devel@alsa-project.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | cpufreq: CPPC: Fix unused-function warningPierre Gondois2022-05-301-9/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Building the cppc_cpufreq driver with for arm64 with CONFIG_ENERGY_MODEL=n triggers the following warnings: drivers/cpufreq/cppc_cpufreq.c:550:12: error: ‘cppc_get_cpu_cost’ defined but not used [-Werror=unused-function] 550 | static int cppc_get_cpu_cost(struct device *cpu_dev, unsigned long KHz, | ^~~~~~~~~~~~~~~~~ drivers/cpufreq/cppc_cpufreq.c:481:12: error: ‘cppc_get_cpu_power’ defined but not used [-Werror=unused-function] 481 | static int cppc_get_cpu_power(struct device *cpu_dev, | ^~~~~~~~~~~~~~~~~~ Move the Energy Model related functions into specific guards. This allows to fix the warning and prevent doing extra work when the Energy Model is not present. Fixes: 740fcdc2c20e ("cpufreq: CPPC: Register EM based on efficiency class information") Reported-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Signed-off-by: Pierre Gondois <pierre.gondois@arm.com> Tested-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | cpufreq: CPPC: Fix build error without CONFIG_ACPI_CPPC_CPUFREQ_FIEZheng Bin2022-05-301-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If CONFIG_ACPI_CPPC_CPUFREQ_FIE is not set, building fails: drivers/cpufreq/cppc_cpufreq.c: In function ‘populate_efficiency_class’: drivers/cpufreq/cppc_cpufreq.c:584:2: error: ‘cppc_cpufreq_driver’ undeclared (first use in this function); did you mean ‘cpufreq_driver’? cppc_cpufreq_driver.register_em = cppc_cpufreq_register_em; ^~~~~~~~~~~~~~~~~~~ cpufreq_driver Make declare of cppc_cpufreq_driver out of CONFIG_ACPI_CPPC_CPUFREQ_FIE to fix this. Fixes: 740fcdc2c20e ("cpufreq: CPPC: Register EM based on efficiency class information") Signed-off-by: Zheng Bin <zhengbin13@huawei.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | Merge tag 'cpufreq-arm-5.19-rc1' of ↵Rafael J. Wysocki2022-05-252-259/+623
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm Pull ARM cpufreq updates for 5.19-rc1 from Viresh Kumar: - Tegra234 cpufreq support (Sumit Gupta). - Mediatek cleanups and enhancements (Wan Jiabing, Rex-BC Chen, and Jia-Wei Chang). * tag 'cpufreq-arm-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: (21 commits) cpufreq: mediatek: Add support for MT8186 cpufreq: mediatek: Link CCI device to CPU dt-bindings: cpufreq: mediatek: Add MediaTek CCI property cpufreq: mediatek: Fix potential deadlock problem in mtk_cpufreq_set_target cpufreq: mediatek: Add opp notification support cpufreq: mediatek: Refine mtk_cpufreq_voltage_tracking() cpufreq: mediatek: Move voltage limits to platform data cpufreq: mediatek: Unregister platform device on exit cpufreq: mediatek: Fix NULL pointer dereference in mediatek-cpufreq cpufreq: mediatek: Make sram regulator optional cpufreq: mediatek: Record previous target vproc value cpufreq: mediatek: Replace old_* with pre_* cpufreq: mediatek: Use device print to show logs cpufreq: mediatek: Enable clocks and regulators cpufreq: mediatek: Remove unused headers cpufreq: mediatek: Cleanup variables and error handling in mtk_cpu_dvfs_info_init() cpufreq: mediatek: Use module_init and add module_exit arm64: tegra: add node for tegra234 cpufreq cpufreq: tegra194: Add support for Tegra234 cpufreq: tegra194: add soc data to support multiple soc ...
| * | cpufreq: mediatek: Add support for MT8186Jia-Wei Chang2022-05-121-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The platform data of MT8186 is different from previous MediaTek SoCs, so we add a new compatible and platform data for it. Signed-off-by: Jia-Wei Chang <jia-wei.chang@mediatek.com> Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| * | cpufreq: mediatek: Link CCI device to CPURex-BC Chen2022-05-121-1/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In some MediaTek SoCs, like MT8183, CPU and CCI share the same power supplies. Cpufreq needs to check if CCI devfreq exists and wait until CCI devfreq ready before scaling frequency. Before CCI devfreq is ready, we record the voltage when booting to kernel and use the max(cpu target voltage, booting voltage) to prevent cpufreq adjust to the lower voltage which will cause the CCI crash because of high frequency and low voltage. - Add is_ccifreq_ready() to link CCI device to CPI, and CPU will start DVFS when CCI is ready. - Add platform data for MT8183. Signed-off-by: Jia-Wei Chang <jia-wei.chang@mediatek.com> Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| * | cpufreq: mediatek: Fix potential deadlock problem in mtk_cpufreq_set_targetWan Jiabing2022-05-101-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix following coccichek error: ./drivers/cpufreq/mediatek-cpufreq.c:199:2-8: preceding lock on line ./drivers/cpufreq/mediatek-cpufreq.c:208:2-8: preceding lock on line mutex_lock is acquired but not released before return. Use 'goto out' to help releasing the mutex_lock. Fixes: c210063b40ac ("cpufreq: mediatek: Add opp notification support") Signed-off-by: Wan Jiabing <wanjiabing@vivo.com> Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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