"Premi, Sanjeev" <premi@xxxxxx> writes: > These are my observations on OMAP3EVM: > > 1) Very frequently I see these messages: > > <4>__ratelimit: 6736 callbacks suppressed > __ratelimit: 6736 callbacks suppressed > <3>omapfb omapfb: irq error status 00c2 > omapfb omapfb: irq error status 00c2 > <3>omapfb omapfb: irq error status 0060 > omapfb omapfb: irq error status 0060 > <3>omapfb omapfb: irq error status 00c2 > omapfb omapfb: irq error status 00c2 > <3>omapfb omapfb: irq error status 0060 > omapfb omapfb: irq error status 0060 > <3>omapfb omapfb: irq error status 00e2 > omapfb omapfb: irq error status 00e2 > <3>omapfb omapfb: irq error status 00c2 > omapfb omapfb: irq error status 00c2 > <3>omapfb omapfb: irq error status 0060 > omapfb omapfb: irq error status 0060 > <3>omapfb omapfb: irq error status 00e2 > omapfb omapfb: irq error status 00e2 > <3>omapfb omapfb: irq error status 00c2 > omapfb omapfb: irq error status 00c2 > <3>omapfb omapfb: irq error status 0060 > omapfb omapfb: irq error status 0060 Sanjeev, For starters can you try with a minimal kernel (no drivers, no framebuffer, etc.) The first goal is to hit retention and off with no drivers than start moving out to address driver issues from there. Kevin > 2) Also: > # echo mem > /sys/power/state > <6>PM: Syncing filesystems ... > PM: Syncing filesystems ... > done. > done. > Freezing user space processes ... Freezing user space processes ... (elapsed 0.00 seconds) (elapsed 0.00 seconds) done. > done. > Freezing remaining freezable tasks ... Freezing remaining freezable tasks ... (elapsed 0.00 seconds) (elapsed 0.00 seconds) done. > done. > > Suspending console(s) (use no_console_suspend to debug) > Suspending console(s) (use no_console_suspend to debug) > <3>omapfb omapfb: timeout waiting for FRAME DONE > > However, I the "resume" doesn't happen. > Trying to debug further. > > Best regards, > Sanjeev > >> On Thu, Nov 20, 2008 at 6:23 AM, Kevin Hilman >> <khilman@xxxxxxxxxxxxxxxxxxx> wrote: >> > Hello, >> > >> > A new PM branch is available named pm-20081119. >> > >> > This is mostly a new set of patches on top of the previous >> PM branch, >> > rather than a rebase. We finally found the root cause of some DPLL >> > relocking bugs. Special thanks to Paul Walmsley and Tero >> Kristo for >> > debugging and fixing this problem. Now the DPLL fix that >> was reverted >> > in the previous PM branch is re-applied as well as some >> fixes on top >> > of it. It also has some additional UART fixes, so I think the UART >> > idle work is ready to go to Tony. Special thanks to Jouni Hogander >> > for the extra testing and fixes here. >> > >> > The shortlog is below[1] and the root of the tree is still >> > v2.6.27-omap1 + T2 power patches from Peter. >> > >> > This has primarily been tested on custom HW since I'm >> _still_ waiting >> > for my SDP to arrive. I have boot tested on Beagle, but I >> think there >> > are still some problems with ES2 silicon. On my ES2 >> Beagle, neither >> > DSS or IVA will leave the ON state, even when all clocks in their >> > powerdomains are off. I have not debugged this further yet. >> > >> > Functionally, this tree is in pretty good shape, so I will do some >> > bugfixes here when necessary, but will now spent some time >> focusing on >> > getting the patches in this branch merged into linux-omap. >> > >> > Kevin >> > >> > >> > [1] git shortlog: >> > >> > Amit Kucheria (2): >> > OMAP: PM: Typo fix for clock_allow_idle >> > HSMMC: Make driver support dynamic idle >> > >> > Jouni Hogander (11): >> > OMAP3: PM: Use pwrdm_set_next_pwrst instead of >> set_pwrdm_state in idle loop >> > OMAP3: Do not set mpu, core, neon states if cpuidle is used >> > OMAP3: PM: Do not set next states sw to control those >> is available >> > OMAP3: PM: Always return value in pwrdms_setup >> > OMAP3: PM: Fix wrong sequence in suspend. >> > OMAP3: UART: Make sure that uart clocks are enabled when needed >> > OMAP3: PM: Check in set_pwrdm_state that target state >> is supported by pwrdm v2 >> > OMAP3: PM: Do not build suspend code if SUSPEND is not enabled >> > OMAP: PM: Build fails if PM is not enabled >> > OMAP2: PM: Fix omap2 build >> > OMAP: MCSPI: Enable mcspi wake-up >> > >> > Kalle Jokiniemi (4): >> > OMAP: PM: sysfs interface for enabling voltage off in idle >> > OMAP3: PM: Fix cpu idle init sequencing >> > OMAP: SRF: Fixes to shared resource framework (Ver.3) >> > OMAP3: I2C: Enable I2C wakeups >> > >> > Kevin Hilman (16): >> > OMAP3: PM: Add wake-up bit defintiions for CONTROL_PADCONF_X >> > OMAP3: PM: Allow UARTs to be unclocked when inactive >> > 8250: Allow platform to register PM hook >> > 8250: when waking, PM hook should be called before >> accessing port >> > OMAP3: PM: UART: Add 8250 UART PM hook for suspend/resume >> > OMAP3: PM: UART save/restore support for OFF-mode >> > OMAP2/3: HSMMC: Ensure HSMMC is fully reset on boot >> > OMAP3: PM: CPUidle: obey enable_off_mode flag >> > OMAP3: PM: CPUidle: restrict C-states on UART activity >> > OMAP3: PM: decouple PER and CORE context save and restore >> > Revert "OMAP3 clock: fix non-CORE DPLL rate assignment bugs" >> > Revert "OMAP3: PM: Do not set next states sw to >> control those is available" >> > Revert "OMAP3: Do not set mpu, core, neon states if >> cpuidle is used" >> > OMAP: PM: UART: fix can_sleep hook to return correct value >> > OMAP: PM: UART: Only disable clocks in prepare-idle hook >> > OMAP3: PM: Check for UART wakeups in 'resume_idle' hook >> > >> > Paul Walmsley (14): >> > OMAP2/3 PM: create the OMAP PM interface and add a >> default OMAP PM no-op layer. >> > OMAP2/3 omapdev: add basic omapdev structure >> > OMAP242x omapdev: add OMAP242x omapdev records >> > OMAP243x omapdev: add OMAP243x omapdev records >> > OMAP3xxx omapdev: add OMAP3xxx omapdev records >> > OMAP2/3 omapdev: add code to walk the omapdev records >> > OMAP3 clock: fix non-CORE DPLL rate assignment bugs >> > OMAP3 powerdomains: remove RET from SGX power states list >> > OMAP3 powerdomains: remove RET from SGX power states list >> > OMAP3 clock: remove unnecessary dpll_data dereferences >> > OMAP3 clock: optimize DPLL rate rounding algorithm >> > OMAP3 clock: avoid invalid FREQSEL values during DPLL >> rate rounding >> > OMAP2/3 I2C: reprogram OCP_SYSCONFIG register after reset >> > OMAP: I2C: convert 'rev1' flag to generic 'rev' u8 >> > >> > Peter 'p2' De Schrijver (9): >> > OMAP: PM counter infrastructure. >> > OMAP: PM: Hook into PM counters >> > OMAP: PM: Add closures to clkdm_for_each and pwrdm_for_each. >> > OMAP: PM: Add pm-debug counters >> > OMAP: PM debug: make powerdomains use PM-debug counters >> > OMAP: PM: Add definitions for ETK pads and >> observability registers >> > OMAP: Debug observability and ETK padconf implementation >> > OMAP: Add debug observablity (debobs) Kconfig item >> > OMAP: PM: Implement get_last_off_on_transaction_id() >> > >> > Rajendra Nayak (23): >> > OMAP3: PM: GPMC context save/restore >> > OMAP3: PM: GPIO context save/restore >> > OMAP3: PM: I2C context save/restore >> > OMAP3: PM: INTC context save/restore >> > OMAP3: PM: PRCM context save/restore >> > OMAP3: PM: Populate scratchpad contents >> > OMAP3: PM: SCM context save/restore >> > OMAP3: PM: SRAM restore function >> > OMAP3: PM: handle PER/NEON/CORE in idle >> > OMAP3: PM: Restore MMU table entry >> > OMAP3: PM: MPU off-mode support >> > OMAP3: PM: CORE domain off-mode support >> > OMAP3: PM: allow runtime enable/disable of OFF mode >> > OMAP3: 3430SDP minimal kernel defconfig >> > OMAP3: PM: CPUidle: Basic support for C1-C2 >> > OMAP3: PM: CPUidle: Enables state C4 >> > OMAP3: PM: CPUidle: Enables C3 and C5 >> > OMAP3: PM: CPUidle: Safe-state on bm-activity >> > OMAP3: PM: CPUidle: Enable Kconfig option for OMAP >> > OMAP3 SRF: Generic shared resource f/w >> > OMAP3 SRF: MPU/CORE/PD latency modeling >> > OMAP3 SRF: omap3 srf driver >> > OMAP3 SRF: OMAP PM srf implementation >> > >> > Tero Kristo (13): >> > OMAP: PM debug: do not print out status for meta >> powerdomains (dpll*) >> > OMAP: PM debug: Add PRCM register dump support >> > OMAP: PM: DMA context save / restore >> > OMAP: PM: off-mode support for DMA on EMU/HS devices >> > OMAP3: SRAM size fix for HS/EMU devices >> > OMAP3 PM: off-mode support for HS/EMU devices >> > OMAP3: PM: Enable SDRAM auto-refresh during sleep >> > OMAP: SDRC: Add new register definitions for SDRAM controller >> > OMAP3: PM: SDRC auto-refresh workaround for off-mode >> > PM: Fix a bug with noncore dpll rate calculation >> > PM: Added three PLL registers to the PRCM context save >> > PM: OMAP3: Make sure clk_disable_unused() order is correct >> > PM: Changed secure RAM storage size from 0x8000 to 0x803F >> > >> > -- >> > 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 >> > >> -- >> To unsubscribe from this list: send the line "unsubscribe >> linux-omap" in the body of a message to >> majordomo@xxxxxxxxxxxxxxx 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