1. 16 9月, 2011 4 次提交
  2. 07 9月, 2011 1 次提交
  3. 25 8月, 2011 1 次提交
  4. 13 7月, 2011 3 次提交
  5. 10 7月, 2011 2 次提交
  6. 02 7月, 2011 1 次提交
    • R
      PM / Domains: Rename struct dev_power_domain to struct dev_pm_domain · 564b905a
      Rafael J. Wysocki 提交于
      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: NRafael J. Wysocki <rjw@sisk.pl>
      Acked-by: NKevin Hilman <khilman@ti.com>
      564b905a
  7. 07 6月, 2011 1 次提交
  8. 29 4月, 2011 1 次提交
  9. 02 3月, 2011 1 次提交
    • R
      OMAP2+: omap_device/clock: Do not expect an entry in clkdev for opt_clks · da0653fe
      Rajendra Nayak 提交于
      The _add_optional_clock_alias function expects an entry
      already existing in the clkdev table in the form of
      <dev-id=NULL, con-id=role> which might not be the case
      always.
      
      Instead, just check if an entry already exists in clkdev
      in the <dev-id=dev_name, con-id=role> form, else go ahead
      and add one.
      
      Remove any assumption of an entry already existing in clkdev
      table in any form.
      
      Since this means, adding a new entry in clkdev if it does
      not already exist, and not really adding an 'alias',
      also rename the function name
      (s/_add_optional_clock_alias/_add_optional_clock_clkdev)
      to reflect this.
      Signed-off-by: NRajendra Nayak <rnayak@ti.com>
      Reported-by: NSumit Semwal <sumit.semwal@ti.com>
      Cc: Sumit Semwal <sumit.semwal@ti.com>
      Cc: Paul Walmsley <paul@pwsan.com>
      Cc: Benoit Cousson <b-cousson@ti.com>
      Cc: Kevin Hilman <khilman@ti.com>
      Cc: Partha Basak <p-basak2@ti.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      da0653fe
  10. 22 12月, 2010 1 次提交
    • K
      OMAP: PM: implement context loss count APIs · c80705aa
      Kevin Hilman 提交于
      Implement OMAP PM layer omap_pm_get_dev_context_loss_count() API by
      creating similar APIs at the omap_device and omap_hwmod levels.  The
      omap_hwmod level call is the layer with access to the powerdomain
      core, so it is the place where the powerdomain is queried to get the
      context loss count.
      
      The new APIs return an unsigned value that can wrap as the
      context-loss count grows.  However, the wrapping is not important as
      the role of this function is to determine context loss by checking for
      any difference in subsequent calls to this function.
      
      Note that these APIs at each level can return zero when no context
      loss is detected, or on errors.  This is to avoid returning error
      codes which could potentially be mistaken for large context loss
      counters.
      
      NOTE: only works for devices which have been converted to use
            omap_device/omap_hwmod.
      
      Longer term, we could possibly remove this API from the OMAP PM layer,
      and instead directly use the omap_device level API.
      Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      c80705aa
  11. 25 9月, 2010 1 次提交
  12. 24 9月, 2010 2 次提交
    • K
      OMAP: omap_device: make all devices a child of a new parent device · 0d5e8252
      Kevin Hilman 提交于
      In order to help differentiate omap_devices from normal
      platform_devices, make them all a parent of a new common parent
      device.
      
      Then, in order to determine if a platform_device is also an
      omap_device, checking the parent is all that is needed.
      
      Users of this feature are the runtime PM core for OMAP, where we need
      to know if a device being passed in is an omap_device or not in order
      to know whether to call the omap_device API with it.
      
      In addition, all omap_devices will now show up under /sys/devices/omap
      instead of /sys/devices/platform
      Acked-by: NPaul Walmsley <paul@pwsan.com>
      Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
      0d5e8252
    • K
      Revert "OMAP: omap_device: add omap_device_is_valid()" · a1ed40cb
      Kevin Hilman 提交于
      This reverts commit 0007122a.
      
      The dereference method of checking for a valid omap_device when
      wrapping a platform_device is rather unsafe and dangerous.
      
      Instead, a better way of checking for a valid omap-device is
      to use a common parent device for all omap_devices, then a check
      can simply be made using the device parent.  The only user of this
      API was the initial version of the runtime PM core for OMAP.  This
      has now been switched to check device parent, so there are no more
      users of this API.
      Acked-by: NPaul Walmsley <paul@pwsan.com>
      Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
      a1ed40cb
  13. 22 9月, 2010 1 次提交
  14. 04 8月, 2010 1 次提交
  15. 27 7月, 2010 3 次提交
    • P
      OMAP2+: hwmod/device: update documentation and copyright · 887adeac
      Paul Walmsley 提交于
      Update some minor documentation issues and update copyright for
      omap_device/omap_hwmod code.
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      Cc: Kevin Hilman <khilman@deeprootsystems.com>
      Cc: Benoît Cousson <b-cousson@ti.com>
      887adeac
    • P
      OMAP: hwmod/device: add omap_{device,hwmod}_get_mpu_rt_va · db2a60bf
      Paul Walmsley 提交于
      Add omap_device_get_mpu_rt_va().  This is intended to be used by
      device drivers (currently, via a struct platform_data function
      pointer) to retrieve their corresponding device's virtual base address
      that the MPU should use to access the device.  This is needed because
      the omap_hwmod code does its own ioremap(), in order to gain access to
      the module's OCP_SYSCONFIG register.
      
      Add omap_hwmod_get_mpu_rt_va().  omap_device_get_mpu_rt_va() calls this
      function to do the real work.
      
      While here, rename struct omap_hwmod._rt_va to struct
      omap_hwmod._mpu_rt_va, to reinforce that it refers to the MPU's
      register target virtual address base (as opposed to, for example, the
      L3's).
      
      In the future, this belongs as a function in an omap_bus, so it is not
      necessary to call this through a platform_data function pointer.
      
      The use-case for this function was originally presented by Santosh
      Shilimkar <santosh.shilimkar@ti.com>.
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
      db2a60bf
    • K
      OMAP: omap_device: ensure hwmod tracks attached omap_device pointer · 06563581
      Kevin Hilman 提交于
      The omap_hwmod struct has a field to track the omap_device that is
      attached to it, but it was not being assigned.  Fix by assigning omap_device
      pointer when omap_device is built.
      Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
      [paul@pwsan.com: use an array index rather than pointer arithmetic]
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      06563581
  16. 21 5月, 2010 1 次提交
  17. 30 3月, 2010 1 次提交
    • T
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking... · 5a0e3ad6
      Tejun Heo 提交于
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
      
      percpu.h is included by sched.h and module.h and thus ends up being
      included when building most .c files.  percpu.h includes slab.h which
      in turn includes gfp.h making everything defined by the two files
      universally available and complicating inclusion dependencies.
      
      percpu.h -> slab.h dependency is about to be removed.  Prepare for
      this change by updating users of gfp and slab facilities include those
      headers directly instead of assuming availability.  As this conversion
      needs to touch large number of source files, the following script is
      used as the basis of conversion.
      
        http://userweb.kernel.org/~tj/misc/slabh-sweep.py
      
      The script does the followings.
      
      * Scan files for gfp and slab usages and update includes such that
        only the necessary includes are there.  ie. if only gfp is used,
        gfp.h, if slab is used, slab.h.
      
      * When the script inserts a new include, it looks at the include
        blocks and try to put the new include such that its order conforms
        to its surrounding.  It's put in the include block which contains
        core kernel includes, in the same order that the rest are ordered -
        alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
        doesn't seem to be any matching order.
      
      * If the script can't find a place to put a new include (mostly
        because the file doesn't have fitting include block), it prints out
        an error message indicating which .h file needs to be added to the
        file.
      
      The conversion was done in the following steps.
      
      1. The initial automatic conversion of all .c files updated slightly
         over 4000 files, deleting around 700 includes and adding ~480 gfp.h
         and ~3000 slab.h inclusions.  The script emitted errors for ~400
         files.
      
      2. Each error was manually checked.  Some didn't need the inclusion,
         some needed manual addition while adding it to implementation .h or
         embedding .c file was more appropriate for others.  This step added
         inclusions to around 150 files.
      
      3. The script was run again and the output was compared to the edits
         from #2 to make sure no file was left behind.
      
      4. Several build tests were done and a couple of problems were fixed.
         e.g. lib/decompress_*.c used malloc/free() wrappers around slab
         APIs requiring slab.h to be added manually.
      
      5. The script was run on all .h files but without automatically
         editing them as sprinkling gfp.h and slab.h inclusions around .h
         files could easily lead to inclusion dependency hell.  Most gfp.h
         inclusion directives were ignored as stuff from gfp.h was usually
         wildly available and often used in preprocessor macros.  Each
         slab.h inclusion directive was examined and added manually as
         necessary.
      
      6. percpu.h was updated not to include slab.h.
      
      7. Build test were done on the following configurations and failures
         were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
         distributed build env didn't work with gcov compiles) and a few
         more options had to be turned off depending on archs to make things
         build (like ipr on powerpc/64 which failed due to missing writeq).
      
         * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
         * powerpc and powerpc64 SMP allmodconfig
         * sparc and sparc64 SMP allmodconfig
         * ia64 SMP allmodconfig
         * s390 SMP allmodconfig
         * alpha SMP allmodconfig
         * um on x86_64 SMP allmodconfig
      
      8. percpu.h modifications were reverted so that it could be applied as
         a separate patch and serve as bisection point.
      
      Given the fact that I had only a couple of failures from tests on step
      6, I'm fairly confident about the coverage of this conversion patch.
      If there is a breakage, it's likely to be something in one of the arch
      headers which should be easily discoverable easily on most builds of
      the specific arch.
      Signed-off-by: NTejun Heo <tj@kernel.org>
      Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
      5a0e3ad6
  18. 25 2月, 2010 3 次提交
    • T
      OMAP: HWMOD: Add support for early device register into omap device layer · c23a97d3
      Thara Gopinath 提交于
      This patch adds support in omap device layer to register devices
      as early platform devices. Certain devices needed during system boot up
      like timers, gpio etc can be registered as early devices. This will
      allow for them to be probed very early on during system boot up.
      This patch adds a parameter is_early_device in omap_device_build.
      Depending on this parameter a call to early_platform_add_devices
      or platform_register_device is made.
      Signed-off-by: NThara Gopinath <thara@ti.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      c23a97d3
    • K
      OMAP: omap_device: when 'called from invalid state', print state · 24d82e34
      Kevin Hilman 提交于
      The omap_device_[enable|idle|shutdown] functions print a warning
      when called from an invalid state.  Print the invalid state in
      the warning messages.  This also uses __func__ to get the function
      name.
      
      Also, move the entire print string onto a single line to facilitate
      grepping or error messages.  Recent discussions on LKML show
      strong preference for grep-able code vs. strict 80 column limit.
      Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      24d82e34
    • K
      OMAP: omap_device: add omap_device_is_valid() · 0007122a
      Kevin Hilman 提交于
      The omap_device struct contains a 'struct platform_device'.  Normally,
      converting a platform_device pointer to an omap_device pointer
      consists of simply doing a container_of(), as is done currently by the
      to_omap_device() macro.
      
      However, if this is attempted when using platform_device that has not
      been created as part of the omap_device creation, the container_of()
      will point to a memory location before the platform_device pointer
      which will contain random data.
      
      Therefore, we need a way to detect valid omap_device pointers.  This
      patch solves this by using the simple magic number approach.
      Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      0007122a
  19. 04 2月, 2010 1 次提交
  20. 27 1月, 2010 1 次提交
    • K
      OMAP: omap_device: optionally auto-adjust device activate/deactivate latencies · 9799aca2
      Kevin Hilman 提交于
      First, this patch adds new worst-case latency values to the
      omap_device_pm_latency struct.  Here the worst-case measured latencies
      for the activate and deactivate hooks are stored.
      
      In addition, add an option to auto-adjust the latency values used for
      device activate/deactivate.
      
      By setting a new 'OMAP_DEVICE_LATENCY_AUTO_ADJUST' flag in the
      omap_device_pm_latency struct, the omap_device layer automatically
      adjusts the activate/deactivate latencies to the worst-case measured
      values.
      
      Anytime a new worst-case value is found, it is printed to the console.
      Here is an example log during boot using UART2 s an example.  After
      boot, the OPP is manually changed to the 125MHz OPP:
      
      [...]
      Freeing init memory: 128K
      omap_device: serial8250.2: new worst case deactivate latency 0: 30517
      omap_device: serial8250.2: new worst case activate latency 0: 30517
      omap_device: serial8250.2: new worst case activate latency 0: 218139648
      omap_device: serial8250.2: new worst case deactivate latency 0: 61035
      omap_device: serial8250.2: new worst case activate latency 0: 278076171
      omap_device: serial8250.2: new worst case activate latency 0: 298614501
      omap_device: serial8250.2: new worst case activate latency 0: 327331542
      
      / # echo 125000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
      
      omap_device: serial8250.2: new worst case deactivate latency 0: 91552
      
      Motivation: this can be used as a technique to automatically determine
      the worst case latency values.  The current method of printing a
      warning on every violation is too noisy to actually interact the
      console in order to set low OPP to discover latencies.
      
      Another motivation for this patch is that the activate/deactivate
      latenices can vary depending on the idlemode of the device.  While
      working on the UARTs, I noticed that when using no-idle, the activate
      latencies were as high as several hundred msecs as shown above.  When
      the UARTs are in smart-idle, the max latency is well under 100 usecs.
      Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      9799aca2
  21. 12 12月, 2009 4 次提交
  22. 21 10月, 2009 1 次提交
    • T
      omap: headers: Move remaining headers from include/mach to include/plat · ce491cf8
      Tony Lindgren 提交于
      Move the remaining headers under plat-omap/include/mach
      to plat-omap/include/plat. Also search and replace the
      files using these headers to include using the right path.
      
      This was done with:
      
      #!/bin/bash
      mach_dir_old="arch/arm/plat-omap/include/mach"
      plat_dir_new="arch/arm/plat-omap/include/plat"
      headers=$(cd $mach_dir_old && ls *.h)
      omap_dirs="arch/arm/*omap*/ \
      drivers/video/omap \
      sound/soc/omap"
      other_files="drivers/leds/leds-ams-delta.c \
      drivers/mfd/menelaus.c \
      drivers/mfd/twl4030-core.c \
      drivers/mtd/nand/ams-delta.c"
      
      for header in $headers; do
      	old="#include <mach\/$header"
      	new="#include <plat\/$header"
      	for dir in $omap_dirs; do
      		find $dir -type f -name \*.[chS] | \
      			xargs sed -i "s/$old/$new/"
      	done
      	find drivers/ -type f -name \*omap*.[chS] | \
      		xargs sed -i "s/$old/$new/"
      	for file in $other_files; do
      		sed -i "s/$old/$new/" $file
      	done
      done
      
      for header in $(ls $mach_dir_old/*.h); do
      	git mv $header $plat_dir_new/
      done
      Signed-off-by: NTony Lindgren <tony@atomide.com>
      ce491cf8
  23. 20 10月, 2009 1 次提交
  24. 04 9月, 2009 1 次提交
    • P
      OMAP2/3/4 core: create omap_device layer · b04b65ab
      Paul Walmsley 提交于
      The omap_device code provides a mapping of omap_hwmod structures into
      the platform_device system, and includes some details on external
      (board-level) integration.  This allows drivers to enable, idle, and
      shutdown on-chip device resources, including clocks, regulators, etc.
      The resources enabled and idled are dependent on the device's maximum
      wakeup latency constraint (if present).
      
      At the moment, omap_device functions are intended to be called from
      platform_data function pointers.  Ideally in the future these
      functions will be called from either subarchitecture-specific
      platform_data activate, deactivate functions, or via an custom
      bus/device type for OMAP.
      Signed-off-by: NPaul Walmsley <paul@pwsan.com>
      Cc: Benoit Cousson <b-cousson@ti.com>
      Cc: Kevin Hilman <khilman@deeprootsystems.com>
      Cc: Tony Lindgren <tony@atomide.com>
      Cc: Rajendra Nayak <rnayak@ti.com>
      Cc: Vikram Pandita <vikram.pandita@ti.com>
      Cc: Sakari Poussa <sakari.poussa@nokia.com>
      Cc: Anand Sawant <sawant@ti.com>
      Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
      Cc: Eric Thomas <ethomas@ti.com>
      Cc: Richard Woodruff <r-woodruff2@ti.com>
      b04b65ab