On Monday 25 March 2013 05:57 PM, Sourav Poddar wrote: > Hi Santosh, > On Monday 25 March 2013 03:34 PM, Santosh Shilimkar wrote: >> Kevin, >> >> Here is the refreshed version(v2) of the OMAP5 PM suspport which was posted >> earlier (March 1st 2013). Patch-set incorporates comments from Nishant >> Menon (Thanks for review NM) and his acked-by tags. I would like to get this >> queued for 3.10 merge window if you are ok with the series. >> >> Series is built on top of my pull requests [1] [2] [3] sent to Tony and your >> 'for_3.10/pm/cleanup' branch. For testing, I have created a branch [4] >> which put together all the needed dependencies, fixes which should make it >> to 3.10 merge window. >> >> Series adds OMAP5 MPUSS power management support for system wide suspend >> and CPUidle. Its heavy re-use from OMAP4 and hence only ~400 odd lines are >> needed to add OMAP5 PM support on top of existing OMAP4 PM support. >> >> OMAP5 adds a mercury retention feature which is an enhancement of >> existing retention feature to reduce the leakage. No change in >> programming model except one time enabling of mercury retention >> during init. >> >> One more notable change in OMAP5 vs OMAP4 devices, CPUx power domains >> support retention state which lets you hit MPUSS and Core retention with >> very low latency C-states. >> >> Tested on OMAP4430 SDP, OMAP4460 Panda, OMAP5430 SDP and OMAP5432 Panda >> devices with suspend and CPUIdle. Rootfs is mounted over ramdisk since >> the mmc and nfs based fs needs DMA engine patches. For suspend wakeup, >> I used Sourav's couple of serial wakeup wip patches from the lists. >> >> The following changes since commit 9981cde24de52e5bb9a7cd918d1e54de241f85c9: >> >> Merge branch 'for_3.10/omap5_data_files' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux into for_3.10/omap5_pm (2013-03-25 12:29:34 +0530) >> >> are available in the git repository at: >> >> >> git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux.git for_3.10/omap5_pm >> >> for you to fetch changes up to 75bd846d3103da858a208fe07127151903d1f608: >> >> ARM: OMAP5: PM: handle device instance for warm reset (2013-03-25 12:37:44 +0530) >> >> ---------------------------------------------------------------- >> Nishanth Menon (1): >> ARM: OMAP5: PM: handle device instance for warm reset >> >> Santosh Shilimkar (17): >> ARM: OMAP4+: PM: Consolidate MPU subsystem PM code for re-use >> ARM: OMAP5: PM: Update CPU context register offset >> ARM: OMAP4+: PM: Consolidate and use OMAP4 PM code for OMAP5 >> ARM: OMAP5: PM: Set MPUSS-EMIF clock-domain static dependency >> ARM: OMAP5: PM: Enables ES2 PM mode by default >> ARM: OMAP5: PM: Enable Mercury retention mode on CPUx powerdomains >> ARM: OMAP5: Add init_late() hook to enable pm initialization >> ARM: OMAP5: PM: Add CPU power off in hotplug path >> ARM: OMAP4+: PM: Restore CPU power state to ON with clockdomain force >> wakeup method >> ARM: OMAP5: PM: Add MPU Open Switch Retention support >> ARM: OMAP5: PM: Add L2 memory power down support >> ARM: OMAP4: CPUidle: Avoid double idle driver registration >> ARM: OMAP: CPUidle: Unregister drivere on device registration failure >> ARM: OMAP4: CPUidle: Make C-state description field more precise >> ARM: OMAP4+: CPUidle: Consolidate idle driver for OMAP5 support >> ARM: OMAP4+: CPUidle: Deprecate use of >> omap4_mpuss_read_prev_context_state() >> ARM: OMAP4+: CPUidle: Add OMAP5 idle driver support >> >> arch/arm/mach-omap2/Kconfig | 1 + >> arch/arm/mach-omap2/Makefile | 12 +- >> arch/arm/mach-omap2/board-generic.c | 1 + >> arch/arm/mach-omap2/common.h | 8 +- >> arch/arm/mach-omap2/cpuidle34xx.c | 6 +- >> .../{cpuidle44xx.c => cpuidle_omap4plus.c} | 151 ++++++++++++++++--- >> arch/arm/mach-omap2/io.c | 8 + >> arch/arm/mach-omap2/omap-mpuss-lowpower.c | 155 +++++++++++++++----- >> arch/arm/mach-omap2/omap-secure.h | 9 ++ >> arch/arm/mach-omap2/omap-smp.c | 12 +- >> arch/arm/mach-omap2/omap-wakeupgen.c | 30 +++- >> arch/arm/mach-omap2/omap-wakeupgen.h | 1 + >> arch/arm/mach-omap2/omap4-sar-layout.h | 2 + >> arch/arm/mach-omap2/{pm44xx.c => pm_omap4plus.c} | 90 ++++++++++-- >> arch/arm/mach-omap2/prminst44xx.c | 10 +- >> .../mach-omap2/{sleep44xx.S => sleep_omap4plus.S} | 106 +++++++++++++ >> 16 files changed, 512 insertions(+), 90 deletions(-) >> rename arch/arm/mach-omap2/{cpuidle44xx.c => cpuidle_omap4plus.c} (58%) >> rename arch/arm/mach-omap2/{pm44xx.c => pm_omap4plus.c} (74%) >> rename arch/arm/mach-omap2/{sleep44xx.S => sleep_omap4plus.S} (77%) >> > Build tested [1] for omap2plus_defconfig. > > For [2], where omap5_pm_branch[1] is merged, testing details are as follows: > * Boot tested on omap4430 sdp, omap5 evm. > > * Wakeup from UART after suspend using dt was tested on omap4430sdp and > omap5430 evm. > Note: For the above UART testing, we need to append "no_console_suspend" in our > bootargs. Is this for both omap4 and omap5 that you need 'no_console_suspend'? > > Tested-by: Sourav Poddar <sourav.poddar@xxxxxx> > > Thanks, > Sourav > > [1] git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux for_3.10/omap5_pm > [2] git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux.git testing/3.10/omap5_int > > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html