linux/arch/arm
Paul Walmsley a16b1f7f86 OMAP3 hwmod: drop most of the OCP_SYSCONFIG.CLOCKACTIVITY code
Earlier, the hwmod code had considered the OCP_SYSCONFIG.CLOCKACTIVITY
bits to be incremental power saving bits, controlling internal IP
block clock gates.  This was a misapprehension.  The CLOCKACTIVITY
bits are used to indicate, in advance, which clocks will be cut when
the module acknowledges an idle request.  This enables the IP block to
take whatever action is necessary to complete any in-progress work
before asserting its IdleAck.

In the current Linux-OMAP code, this implies that the clock framework
should be changing module CLOCKACTIVITY bits as module clocks are enabled
and disabled.  We don't do that yet, but in the future, we should.
This must wait until the clock tree is annotated with omap_hwmod pointers
(or vice-versa).  In the meantime, drop most of the hwmod code that
controls CLOCKACTIVITY bits to avoid confusion.

This patch has benefited from many illuminating discussions with (in
alphabetical order) Benoît Cousson <b-cousson@ti.com>, Rajendra Nayak
<rnayak@ti.com>, and Sebastien Sabatier <s-sabatier1@ti.com>.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Sebastien Sabatier <s-sabatier1@ti.com>
Cc: Benoît Cousson <b-cousson@ti.com>
2009-12-11 17:00:43 -07:00
..
boot ARM: add base support for Marvell Dove SoC 2009-11-27 15:43:06 -05:00
common Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
configs Merge branch 'for-linus' of git://gitorious.org/linux-omap-dss2/linux 2009-12-10 21:55:17 -08:00
include/asm Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block 2009-12-08 08:19:16 -08:00
kernel Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2009-12-08 08:12:43 -08:00
lib Merge branch 'for-rmk' of git://linux-arm.org/linux-2.6 2009-09-19 13:47:57 +01:00
mach-aaec2000
mach-at91 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-12-09 19:52:01 -08:00
mach-bcmring Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
mach-clps711x
mach-davinci Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-12-09 19:52:01 -08:00
mach-dove ARM: Add Tauros2 L2 cache controller support 2009-11-27 15:43:21 -05:00
mach-ebsa110
mach-ep93xx ARM: 5790/1: ep93xx: add missing newline between file header and code 2009-11-24 10:04:17 +00:00
mach-footbridge
mach-gemini Gemini: Fix SRAM/ROM location after memory swap 2009-05-28 16:42:25 +03:00
mach-h720x
mach-integrator ARM: integrator: allow Integrator to be built with highmem 2009-10-25 22:44:30 +00:00
mach-iop13xx Merge branch 'devel-stable' into devel 2009-12-05 10:35:33 +00:00
mach-iop32x iop: enable generic time 2009-10-29 11:46:55 -07:00
mach-iop33x iop: enable generic time 2009-10-29 11:46:55 -07:00
mach-ixp4xx ixp4xx: arch_idle() documentation fixup 2009-09-21 19:20:03 +02:00
mach-ixp23xx
mach-ixp2000
mach-kirkwood [ARM] Kirkwood: Remove code duplication in QNAP setup files 2009-11-13 12:14:24 -05:00
mach-ks8695 ARM: dma-mapping: provide dma_to_page() 2009-11-23 12:53:54 +00:00
mach-l7200 [ARM] mach-l7200: fix spelling of SYS_CLOCK_OFF 2009-05-18 11:25:08 +01:00
mach-lh7a40x tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
mach-loki [ARM] add coherent DMA mask for mv643xx_eth 2009-05-22 17:05:53 -04:00
mach-mmp [ARM] pxa: add apmu clock support in mmp 2009-12-01 09:02:51 +08:00
mach-msm
mach-mv78xx0 [ARM] properly report mv78100 stepping A1 2009-11-05 23:03:19 -05:00
mach-mx1 ARM: mxc: Fix i2c_board_info definitions 2009-08-14 12:40:37 +02:00
mach-mx2 mx27: mxt_td60: Add support to SD/MMC 2009-12-02 12:06:14 +01:00
mach-mx3 mx31moboard: fix typo 2009-12-04 13:23:41 +01:00
mach-mx25 mx25: Add missing copyright / license header 2009-10-02 09:14:18 +02:00
mach-mxc91231 MXC: add iomux pins configuration support for MXC91231 2009-08-14 12:40:47 +02:00
mach-netx netx: Use get_irqnr_preamble to initialize base register 2009-08-13 20:34:36 +02:00
mach-nomadik ARM: 5786/1: Introduce plat-nomadik, MTU code re-organization 2009-11-28 10:22:51 +00:00
mach-ns9xxx const: constify remaining file_operations 2009-10-01 16:11:11 -07:00
mach-omap1 OMAP1 clock: convert mach-omap1/clock.h to mach-omap1/clock_data.c 2009-12-11 17:00:40 -07:00
mach-omap2 OMAP3 hwmod: drop most of the OCP_SYSCONFIG.CLOCKACTIVITY code 2009-12-11 17:00:43 -07:00
mach-orion5x tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
mach-pnx4008
mach-pxa Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
mach-realview RealView: Add sparsemem support for the RealView PBX platform 2009-11-05 10:10:36 +00:00
mach-rpc
mach-s3c24a0/include/mach ARM: S3C: Update Simtec copyright statements from , to - [2] 2009-12-01 01:33:51 +00:00
mach-s3c2400 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
mach-s3c2410 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
mach-s3c2412 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
mach-s3c2440 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
mach-s3c2442 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
mach-s3c2443 Kconfig: Remove useless and sometimes wrong comments 2009-11-09 09:40:56 +01:00
mach-s3c6400 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
mach-s3c6410 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
mach-s5pc100 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
mach-sa1100 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
mach-shark
mach-stmp37xx [ARM] 5539/1: Freescale STMP: onboard devices declaration 2009-06-04 14:16:45 +01:00
mach-stmp378x [ARM] 5539/1: Freescale STMP: onboard devices declaration 2009-06-04 14:16:45 +01:00
mach-u300 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
mach-ux500 ARM: 5832/1: ARM: U8500 Makefile.boot 2009-11-28 10:22:52 +00:00
mach-versatile ARM: 5720/1: Move MMCI header to amba include dir 2009-09-22 20:49:04 +01:00
mach-w90x900 ARM: 5842/1: add spi resource support for nuc900 2009-12-01 23:08:31 +00:00
mm Merge branch 'devel-stable' into devel 2009-12-05 10:35:33 +00:00
nwfpe [ARM] nwfpe: fix 'floatx80_is_nan' sparse warning 2009-05-15 12:49:14 +01:00
oprofile ARM: 5764/1: bcmring: add oprofile pmu support 2009-10-17 20:10:22 +01:00
plat-iop iop: implement sched_clock() 2009-10-29 11:46:56 -07:00
plat-mxc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
plat-nomadik ARM: 5833/1: ARM nomadik: enable U8500 for common platform 2009-11-28 10:22:53 +00:00
plat-omap OMAP hwmod: add names to module MPU IRQ lines 2009-12-11 17:00:43 -07:00
plat-orion [ARM] Kirkwood: __init requires linux/init.h 2009-08-24 11:55:59 -04:00
plat-pxa pxa3xx_nand: move pxa3xx_nand.h common into plat directory 2009-12-01 09:02:43 +08:00
plat-s3c Merge branch 's3c24xx-updates' of git://git.fluff.org/bjdooks/linux 2009-12-09 19:45:58 -08:00
plat-s3c24xx Merge branch 's3c24xx-updates' of git://git.fluff.org/bjdooks/linux 2009-12-09 19:45:58 -08:00
plat-s3c64xx Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
plat-s5pc1xx Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
plat-samsung ARM: SAMSUNG: Add plat-samsung as starting point for plat-s3c* moves 2009-12-01 01:28:37 +00:00
plat-stmp3xxx ARM: STMP3xxx: deallocation with negative index of descriptors[] 2009-09-19 12:14:05 +01:00
tools [ARM] Update mach-types 2009-11-25 22:17:36 +00:00
vfp Thumb-2: Implement the unified VFP support 2009-07-24 12:32:57 +01:00
Kconfig Merge branch 'devel-stable' into devel 2009-12-05 10:35:33 +00:00
Kconfig-nommu
Kconfig.debug ARM: 5841/1: a driver for on-chip ETM and ETB 2009-12-02 10:25:22 +00:00
Makefile Merge branch 'devel-stable' into devel 2009-12-05 10:35:33 +00:00