RE: new PM branch: pm-20081106

["Rajendra Nayak" <rnayak@ti.com>]

 

> -----Original Message-----
> From: Kevin Hilman [mailto:khilman@deeprootsystems.com] 
> Sent: Tuesday, November 11, 2008 10:51 PM
> To: Rajendra Nayak
> Cc: linux-omap@vger.kernel.org
> Subject: Re: new PM branch: pm-20081106
> 
> "Rajendra Nayak" <rnayak@ti.com> writes:
> 
> > I am seeing a couple of issues on the 3430sdp with this latest pm
> > branch.  With the omap_3430sdp_min_defconfig I see a system freeze
> > after bootup after the debug UART inactivity. Also system wide
> > suspend seems to freeze.  The system wide suspend freeze is seen
> > even with the default (omap_3430sdp_defconfig) config.  I ran into
> > these issue while validating the DVFS patches and haven't really
> > looked further into what might be causing these. I have a ES3.0 GP
> > based SDP board.
> 
> Rajendra,
> 
> I just pushed another patch to pm-20081106 for you to try.  This
> reverts a commit[1] from linux-omap which is causing problems coming
> out of retention.
> 
> Could you update your PM branch, and also modify the 'enabled_uarts'
> settings in your board-3430sdp.c file so that only the console UART is
> enabled.  Doing this would help me understand what's working on SDP.
> 
> Until I get my SDP, I'll need to rely on you for this testing.
>

Hi Kevin,

Sorry for the delay in responding. The latest pm branch does seem 
to work fine on my SDP after taking in Jouni's patch
"[PATCH PM-20081106] OMAP3: UART: Make sure that uart clocks are enabled when needed"
and restricting the enabled_uarts to debug console.
I however did not see the VCORE led blink while hitting OFF.

regards,
Rajendra

> 
> [1] 2ac1da8c787f73f067e717408e631501ba60aabc
> 
> >> -----Original Message-----
> >> From: linux-omap-owner@vger.kernel.org 
> >> [mailto:linux-omap-owner@vger.kernel.org] On Behalf Of Kevin Hilman
> >> Sent: Friday, November 07, 2008 11:00 PM
> >> To: linux-omap@vger.kernel.org
> >> Subject: new PM branch: pm-20081106
> >> 
> >> For those who want to experiment with the latest PM 
> branch, it is now
> >> available in OMAP git as branch pm-20081106
> >> 
> >> The shortlog is below[1], but the significant thing for now is a
> >> rework of how UART handles its clocks and allows idle.  I also did
> >> quite a bit of reordering and some restructuring.
> >> 
> >> I've tested this on Nokia HW and the basic 
> retention-on-idle support
> >> on Beagle.  I'm still waiting for my SDP to arrive, so 
> haven't tested
> >> on SDP.
> >> 
> >> Kevin
> >> 
> >> [1]
> >> Amit Kucheria (2):
> >>       OMAP: PM: Typo fix for clock_allow_idle
> >>       HSMMC: Make driver support dynamic idle
> >> 
> >> Jouni Hogander (5):
> >>       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.
> >> 
> >> Kalle Jokiniemi (3):
> >>       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)
> >> 
> >> Kevin Hilman (10):
> >>       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
> >> 
> >> Paul Walmsley (6):
> >>       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
> >> 
> >> 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 (9):
> >>       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
> >> 
> >> --
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> >> 
> 
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