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New: Not found this subsystem directory /sys/devices/system/cpu/cpufreq

Bug 81131 [email protected] 1 participant 3 messages Jul 26, 2014 – Aug 5, 2014

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https://bugzilla.kernel.org/show_bug.cgi?id=81131

            Bug ID: 81131
           Summary: Not found this subsystem directory
                    /sys/devices/system/cpu/cpufreq
           Product: Power Management
           Version: 2.5
    Kernel Version: 3.15.6
          Hardware: ARM
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: cpufreq
          Assignee: [email protected]
          Reporter: [email protected]
        Regression: No

My board is XAM3359-Beaglebone Black.
I'm using specify utils - cpufrequtils, but in new kernel 3.15.6 this util's can't work: control directory in sysfs /sys/devices/system/cpu/cpufreq does not exists.

My configuration for cpufreq in this kernel:

jane linux-3.15.6 # cat .config | grep -i freq CONFIG_ARCH_HAS_CPUFREQ=y
# CPU Frequency scaling
CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_GOV_COMMON=y CONFIG_CPU_FREQ_STAT=y CONFIG_CPU_FREQ_STAT_DETAILS=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set CONFIG_CPU_FREQ_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_POWERSAVE=m CONFIG_CPU_FREQ_GOV_USERSPACE=m CONFIG_CPU_FREQ_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
# ARM CPU frequency scaling drivers
# CONFIG_ARM_KIRKWOOD_CPUFREQ is not set CONFIG_ARM_OMAP2PLUS_CPUFREQ=y CONFIG_PM_DEVFREQ=y
# DEVFREQ Governors CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=m CONFIG_DEVFREQ_GOV_PERFORMANCE=m CONFIG_DEVFREQ_GOV_POWERSAVE=m CONFIG_DEVFREQ_GOV_USERSPACE=m
# DEVFREQ Drivers

This config is analogie to config for oldest patched kernels (3.8.13, 3.13.6+) but not working.

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author
#1 lore raw

[Bug 81131] Not found this subsystem directory /sys/devices/system/cpu/cpufreq

https://bugzilla.kernel.org/show_bug.cgi?id=81131

Boris Vinogradov <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------

     Kernel Version|3.15.6                      |3.15.x
         Regression|No                          |Yes
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#2 lore raw

[Bug 81131] Not found this subsystem directory /sys/devices/system/cpu/cpufreq

In reply to [email protected]

https://bugzilla.kernel.org/show_bug.cgi?id=81131

Rafael J. Wysocki <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------

                 CC|                            |[email protected]
           Assignee|[email protected]     |[email protected]
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