1. 10 Jul, 2011 1 commit
  2. 02 Jul, 2011 16 commits
    • Magnus Damm's avatar
      ARM: mach-shmobile: sh7372 A3SG support · c47586b6
      Magnus Damm authored
      Add support for the sh7372 A3SG power domain. This domain contains
      the SGX hardware block, but there is no open source driver available.
      Signed-off-by: default avatarMagnus Damm <damm@opensource.se>
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      c47586b6
    • Magnus Damm's avatar
      ARM: mach-shmobile: sh7372 A3RI support · 082517aa
      Magnus Damm authored
      Add support for the sh7372 A3RI power domain. This domain contains
      the ISP hardware block, but there is no driver available.
      Signed-off-by: default avatarMagnus Damm <damm@opensource.se>
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      082517aa
    • Magnus Damm's avatar
      ARM: mach-shmobile: sh7372 A3RV support · 33afebf3
      Magnus Damm authored
      Add support for the sh7372 A3RV power domain and hook
      up the VPU device.
      Signed-off-by: default avatarMagnus Damm <damm@opensource.se>
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      33afebf3
    • Magnus Damm's avatar
      ARM: mach-shmobile: sh7372 A4LC support for AP4EVB · 96f7934e
      Magnus Damm authored
      The AP4EVB board is also using a sh7372 SoC, so tie in
      A4LC support on that board as well.
      Signed-off-by: default avatarMagnus Damm <damm@opensource.se>
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      96f7934e
    • Rafael J. Wysocki's avatar
      ARM / shmobile: Support for I/O power domains for SH7372 (v9) · e3e01091
      Rafael J. Wysocki authored
      Use the generic power domains support introduced by the previous
      patch to implement support for power domains on SH7372.
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      Acked-by: default avatarPaul Mundt <lethal@linux-sh.org>
      e3e01091
    • Rafael J. Wysocki's avatar
      PM: Rename clock management functions · 3d5c3036
      Rafael J. Wysocki authored
      The common PM clock management functions may be used for system
      suspend/resume as well as for runtime PM, so rename them
      accordingly.  Modify kerneldoc comments describing these functions
      and kernel messages printed by them, so that they refer to power
      management in general rather that to runtime PM.
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      Reviewed-by: default avatarKevin Hilman <khilman@ti.com>
      3d5c3036
    • Rafael J. Wysocki's avatar
      PM: Allow the clocks management code to be used during system suspend · b7b95920
      Rafael J. Wysocki authored
      The common clocks management code in drivers/base/power/clock_ops.c
      is going to be used during system-wide power transitions as well as
      for runtime PM, so it shouldn't depend on CONFIG_PM_RUNTIME.
      However, the suspend/resume functions provided by it for
      CONFIG_PM_RUNTIME unset, to be used during system-wide power
      transitions, should not behave in the same way as their counterparts
      defined for CONFIG_PM_RUNTIME set, because in that case the clocks
      are managed differently at run time.
      
      The names of the functions still contain the word "runtime" after
      this change, but that is going to be modified by a separate patch
      later.
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      Reviewed-by: default avatarKevin Hilman <khilman@ti.com>
      b7b95920
    • Rafael J. Wysocki's avatar
      PM / Domains: Wakeup devices support for system sleep transitions · d4f2d87a
      Rafael J. Wysocki authored
      There is the problem how to handle devices set up to wake up the
      system from sleep states during system-wide power transitions.
      In some cases, those devices can be turned off entirely, because the
      wakeup signals will be generated on their behalf anyway.  In some
      other cases, they will generate wakeup signals if their clocks are
      stopped, but only if power is not removed from them.  Finally, in
      some cases, they can only generate wakeup signals if power is not
      removed from them and their clocks are enabled.
      
      To allow platform-specific code to decide whether or not to put
      wakeup devices (and their PM domains) into low-power state during
      system-wide transitions, such as system suspend, introduce a new
      generic PM domain callback, .active_wakeup(), that will be used
      during the "noirq" phase of system suspend and hibernation (after
      image creation) to decide what to do with wakeup devices.
      Specifically, if this callback is present and returns "true", the
      generic PM domain code will not execute .stop_device() for the
      given wakeup device and its PM domain won't be powered off.
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      Acked-by: default avatarKevin Hilman <khilman@ti.com>
      d4f2d87a
    • Rafael J. Wysocki's avatar
      PM / Domains: System-wide transitions support for generic domains (v5) · 596ba34b
      Rafael J. Wysocki authored
      Make generic PM domains support system-wide power transitions
      (system suspend and hibernation).  Add suspend, resume, freeze, thaw,
      poweroff and restore callbacks to be associated with struct
      generic_pm_domain objects and make pm_genpd_init() use them as
      appropriate.
      
      The new callbacks do nothing for devices belonging to power domains
      that were powered down at run time (before the transition).  For the
      other devices the action carried out depends on the type of the
      transition.  During system suspend the power domain .suspend()
      callback executes pm_generic_suspend() for the device, while the
      PM domain .suspend_noirq() callback runs pm_generic_suspend_noirq()
      for it, stops it and eventually removes power from the PM domain it
      belongs to (after all devices in the domain have been stopped and its
      subdomains have been powered off).
      
      During system resume the PM domain .resume_noirq() callback
      restores power to the PM domain (when executed for it first time),
      starts the device and executes pm_generic_resume_noirq() for it,
      while the .resume() callback executes pm_generic_resume() for the
      device.  Finally, the .complete() callback executes pm_runtime_idle()
      for the device which should put it back into the suspended state if
      its runtime PM usage count is equal to zero at that time.
      
      The actions carried out during hibernation and resume from it are
      analogous to the ones described above.
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      Reviewed-by: default avatarKevin Hilman <khilman@ti.com>
      596ba34b
    • Rafael J. Wysocki's avatar
      PM / Domains: Move code from under #ifdef CONFIG_PM_RUNTIME (v2) · 5248051b
      Rafael J. Wysocki authored
      There is some code in drivers/base/power/domain.c that will be useful
      for both runtime PM and system-wide power transitions, so make it
      depend on CONFIG_PM instead of CONFIG_PM_RUNTIME.
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      Reviewed-by: default avatarKevin Hilman <khilman@ti.com>
      5248051b
    • Rafael J. Wysocki's avatar
      PM: Introduce generic "noirq" callback routines for subsystems (v2) · e5291928
      Rafael J. Wysocki authored
      Introduce generic "noirq" power management callback routines for
      subsystems in addition to the "regular" generic PM callback routines.
      
      The new routines will be used, among other things, for implementing
      system-wide PM transitions support for generic PM domains.
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      e5291928
    • Rafael J. Wysocki's avatar
      PM / Domains: Support for generic I/O PM domains (v8) · f721889f
      Rafael J. Wysocki authored
      Introduce common headers, helper functions and callbacks allowing
      platforms to use simple generic power domains for runtime power
      management.
      
      Introduce struct generic_pm_domain to be used for representing
      power domains that each contain a number of devices and may be
      parent domains or subdomains with respect to other power domains.
      Among other things, this structure includes callbacks to be
      provided by platforms for performing specific tasks related to
      power management (i.e. ->stop_device() may disable a device's
      clocks, while ->start_device() may enable them, ->power_off() is
      supposed to remove power from the entire power domain
      and ->power_on() is supposed to restore it).
      
      Introduce functions that can be used as power domain runtime PM
      callbacks, pm_genpd_runtime_suspend() and pm_genpd_runtime_resume(),
      as well as helper functions for the initialization of a power
      domain represented by a struct generic_power_domain object,
      adding a device to or removing a device from it and adding or
      removing subdomains.
      
      Introduce configuration option CONFIG_PM_GENERIC_DOMAINS to be
      selected by the platforms that want to use the new code.
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      Acked-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      Reviewed-by: default avatarKevin Hilman <khilman@ti.com>
      f721889f
    • Rafael J. Wysocki's avatar
      PM: subsys_data in struct dev_pm_info need not depend on RM_RUNTIME · dc6e4e56
      Rafael J. Wysocki authored
      The subsys_data field of struct dev_pm_info, introduced by commit
      1d2b71f6 (PM / Runtime: Add subsystem
      data field to struct dev_pm_info), is going to be used even if
      CONFIG_PM_RUNTIME is not set, so move it from under the #ifdef.
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      dc6e4e56
    • Rafael J. Wysocki's avatar
      PM / Domains: Rename struct dev_power_domain to struct dev_pm_domain · 564b905a
      Rafael J. Wysocki authored
      The naming convention used by commit 7538e3db6e015e890825fbd9f86599b
      (PM: Add support for device power domains), which introduced the
      struct dev_power_domain type for representing device power domains,
      evidently confuses some developers who tend to think that objects
      of this type must correspond to "power domains" as defined by
      hardware, which is not the case.  Namely, at the kernel level, a
      struct dev_power_domain object can represent arbitrary set of devices
      that are mutually dependent power management-wise and need not belong
      to one hardware power domain.  To avoid that confusion, rename struct
      dev_power_domain to struct dev_pm_domain and rename the related
      pointers in struct device and struct pm_clk_notifier_block from
      pwr_domain to pm_domain.
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      Acked-by: default avatarKevin Hilman <khilman@ti.com>
      564b905a
    • Rafael J. Wysocki's avatar
      PM / Runtime: Update documentation regarding driver removal · f5da24db
      Rafael J. Wysocki authored
      Commit e1866b33 (PM / Runtime: Rework
      runtime PM handling during driver removal) forgot to update the
      documentation in Documentation/power/runtime_pm.txt to match the new
      code in drivers/base/dd.c.  Update that documentation to match the
      code it describes.
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      Reviewed-by: default avatarKevin Hilman <khilman@ti.com>
      f5da24db
    • Kevin Hilman's avatar
      PM: Documentation: fix typo: pm_runtime_idle_sync() doesn't exist. · 5efb54cc
      Kevin Hilman authored
      Replace reference to pm_runtime_idle_sync() in the driver core with
      pm_runtime_put_sync() which is used in the code.
      Signed-off-by: default avatarKevin Hilman <khilman@ti.com>
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      5efb54cc
  3. 01 Jul, 2011 4 commits
  4. 30 Jun, 2011 12 commits
  5. 29 Jun, 2011 7 commits