[PATCH v5 0/9] Consolidate cpuidle functionality

[Amit Kucheria]

CC'ing Venki on this too.

The entire thread can be found at:
http://www.spinics.net/lists/arm-kernel/msg161596.html

On Mon, Feb 27, 2012 at 6:47 AM, Robert Lee <rob.lee at linaro.org> wrote:
> This patch series moves vaious functionality duplicated in platform
> cpuidle drivers to the core cpuidle driver. Also, the platform irq
> disabling was removed as it appears that all calls into
> cpuidle_call_idle will have already called local_irq_disable().
>
>
> Based on 3.3-rc5 plus recent exynos cpuidle patch:
> http://www.spinics.net/lists/linux-samsung-soc/msg09467.html
>
> v4 submission can be found here:
> http://lists.infradead.org/pipermail/linux-arm-kernel/2012-January/082742.html
>
> Changes since v4:
> * Added common cpu_do_idle function to core cpuidle
> * Added time keep irq en wrapper to core cpuidle
> * Removed pre/post enter
> * Re-added platforms that can use new common code.
>
> v3 submission can be found here:
> http://www.spinics.net/lists/arm-kernel/msg156751.html
> Changes since v3:
> * Removed drivers/cpuidle/common.c
> ** Removed the initialization helper functions
> ** Removed the wrapper used to consolidate time keeping and irq enable/disable
> * Add time keeping and local_irq_disable handling in cpuidle_call_idle().
> * Made necessary modifications to a few platforms that required the most changes
> ** Note on omap3: changed structure of omap3_idle_drvdata and added
>  per_next_state and per_saved_state vars to accomodate new framework.
>
> v2 submission can be found here:
> http://comments.gmane.org/gmane.linux.ports.arm.kernel/144199
>
> Changes since v2:
> * Made various code organization and style changes as suggested in v1 review.
> * Removed at91 use of common code.  A separate effort is underway to clean
> at91 code and the author has offered to convert to common interface as part
> of those changes (if this common interface is accepted in time).
> * Made platform cpuidle_driver objects __initdata and dynamically added one
> persistent instance of this object in common code.
> * Removed imx5 pm usage of gpc_dvfs clock as it is no longer needed after
> being enabled during clock initialization.
> * Re-organized patches.
>
> v1 submission can be found here:
> http://comments.gmane.org/gmane.linux.ports.arm.kernel/142791
>
> Changes since v1:
> * Common interface moved to drivers/cpuidle and made non arch-specific.
> * Made various fixes and suggested additions to the common cpuidle
> code from v1 review.
> * Added callback for filling in driver_data field as needed.
> * Modified the various platforms with these changes.
>
> Robert Lee (9):
>  cpuidle: Add commonly used functionality for consolidation
>  SH: shmobile: cpuidle consolidation
>  ARM: omap: Consolidate OMAP3 cpuidle time keeping and irq enable
>  ARM: omap: Consolidate OMAP4 cpuidle time keeping and irq enable
>  ARM: shmobile: Consolidate cpuidle functionality
>  ARM: davinci: Consolidate cpuidle functionality
>  ARM: exynos: Consolidate cpuidle functionality
>  ARM: kirkwood: Consolidate cpuidle functionality
>  ARM: at91: Consolidate cpuidle functionality
>
>  arch/arm/mach-at91/cpuidle.c          |   64 +++++++++------------------
>  arch/arm/mach-davinci/cpuidle.c       |   77 +++++++++++++--------------------
>  arch/arm/mach-exynos/cpuidle.c        |   52 ++--------------------
>  arch/arm/mach-kirkwood/cpuidle.c      |   71 +++++++++----------------------
>  arch/arm/mach-omap2/cpuidle34xx.c     |   43 ++++++++-----------
>  arch/arm/mach-omap2/cpuidle44xx.c     |   21 +--------
>  arch/arm/mach-shmobile/cpuidle.c      |   22 +---------
>  arch/sh/kernel/cpu/shmobile/cpuidle.c |   10 +---
>  drivers/cpuidle/cpuidle.c             |   37 +++++++++------
>  include/linux/cpuidle.h               |   55 +++++++++++++++++++++++
>  10 files changed, 180 insertions(+), 272 deletions(-)
>
>
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