OMAP2/3/4 clockdomains/powerdomains: split shared dependencies and clean up - for 2.6.34

Hello,

this series has already been posted on linux-omap, but is being reposted here on linux-arm-kernel in case others wish to comment before sending upstream to the for-next tree for 2.6.34 merging.

- Paul

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Hi,

This series moves wakeup and sleep dependencies on the OMAP2/3 chips from the powerdomain layer to the clockdomain layer, where they belong. It also adds usecounting for clockdomain dependency usecounting, which fixes the obvious problem that occurs when several different pieces of code need to add clockdomain dependencies, and then one removes the dependency. (To add usecounting, the dependencies that were shared between clockdomains have been split into separate records.) These changes should prepare the clockdomain code for OMAP4 clockdomain dependencies.

The series also does some cleanup. struct powerdomain is packed, the dead function pwrdm_clk_state_switch() is removed, documentation is improved, the nonexistent MDM clockdomain is removed from OMAP2420.

Boot-tested on N800, 2430SDP, and OMAP3 Beagle. Compile-tested with omap_osk_5912_defconfig.

Applies on the 'for_2.6.34' branch of git://git.pwsan.com/linux-2.6

- Paul

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text data bss dec hex filename

3622921  198528  102984 3924433  3be1d1 vmlinux.beagle.orig
3623325  199168  102984 3925477  3be5e5 vmlinux.beagle

Paul Walmsley (10):
OMAP2/3 clkdm/pwrdm: move wkdep/sleepdep handling from pwrdm to clkdm OMAP2/3 clockdomains: split shared structures so usecounting works OMAP2 clockdomain: modem clockdomain is only present on OMAP2430 OMAP clockdomain/powerdomain: remove runtime register/unregister OMAP clockdomains: add usecounting for wakeup and sleep dependencies OMAP2/3/4 clockdomain: add clkdm_clear_all_{wkdep,sleepdep}s() OMAP powerdomain/PM: use symbolic constants for the max number of power states OMAP powerdomain: rearrange struct powerdomain to save some memory OMAP powerdomain: remove pwrdm_clk_state_switch
OMAP clockdomain/powerdomain: improve documentation

 arch/arm/mach-omap2/clockdomain.c             |  691 +++++++++++++++++++------
 arch/arm/mach-omap2/clockdomains.h            |  474 +++++++++++++++++
 arch/arm/mach-omap2/io.c                      |    2 
 arch/arm/mach-omap2/omap_hwmod.c              |   10 
 arch/arm/mach-omap2/pm34xx.c                  |   10 
 arch/arm/mach-omap2/powerdomain.c             |  570 ++++-----------------
 arch/arm/mach-omap2/powerdomains.h            |   88 ---
 arch/arm/mach-omap2/powerdomains24xx.h        |   87 ---
 arch/arm/mach-omap2/powerdomains34xx.h        |  145 -----
 arch/arm/mach-omap2/prcm.c                    |   12 
 arch/arm/plat-omap/include/plat/clockdomain.h |   99 ++--
 arch/arm/plat-omap/include/plat/powerdomain.h |   78 +--
 arch/arm/plat-omap/include/plat/prcm.h        |    8 
 13 files changed, 1241 insertions(+), 1033 deletions(-)