From: khilman@deeprootsystems•com (Kevin Hilman)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCHv9 0/8] ARM: OMAP4: core retention support
Date: Tue, 06 Nov 2012 13:19:05 -0800 [thread overview]
Message-ID: <87wqxy77li.fsf@deeprootsystems.com> (raw)
In-Reply-To: <1352193483.8788.43.camel@sokoban> (Tero Kristo's message of "Tue, 6 Nov 2012 11:18:02 +0200")
Tero Kristo <t-kristo@ti•com> writes:
> Hi Kevin,
>
> On Mon, 2012-11-05 at 14:23 -0800, Kevin Hilman wrote:
>> Hi Tero,
>>
>> Tero Kristo <t-kristo@ti•com> writes:
>>
>> > Hi,
>> >
>> > Changes compared to previous version:
>> > - rebased on top of 3.7-rc1
>> > - applies on top of latest func pwrst code (v6)
>> > - added back patch #1 to this set (it wasn't queued yet after all)
>> > - added patch #7 for fixing a bug in the functional pwrst code
>> > - added patch #8 for fixing a regression with MUSB PHY power handling
>> > (not quite sure if this is the correct way to fix this or not)
>> >
>> > Tested with omap4460 gp panda + omap4430 emu blaze boards, with cpuidle +
>> > suspend.
>> >
>> > Branch also available here:
>> > git://gitorious.org/~kristo/omap-pm/omap-pm-work.git
>> > branch: mainline-3.7-rc1-omap4-ret-v9
>>
>> I tested this branch on 4430/Panda and 4460/Panda-ES and I'm seeing
>> several domains not hitting target power state in suspend[1].
>>
>> Am I missing some other fixes? Using omap2plus_defconfig, I tried your
>> branch alone, and merged with v3.7-rc4, and I get the same errors.
[...]
> This looks like a combination of boot loader/kernel problems. My guess
> is that l3init is probably held on by the USB, and both ivahd / tesla
> are held on by some DSP/IVA modules which are not idling properly.
>
> The last patch in this set should fix the USB problems at least
> partially, but also the USB DPLL itself might be in wrong state,
> attached patch might help for that one and get l3init to idle.
>
> For DSP I don't have a patch right now, what is the boot loader you are
> using? (Can you provide git / commit / config info?)
I was using mainline u-boot at tag v2012.04.01 when I saw the errors.
To check the bootloader, I upgraded to the latest mainline tag
(v2012.10) and the problems are gone on both 4430/Panda and
4460/Panda-ES... Interesting.
That suggests that there's still some kernel assumptions/dependencies on
the bootloader that need to be addressed.
Kevin
next prev parent reply other threads:[~2012-11-06 21:19 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-18 9:20 [PATCHv9 0/8] ARM: OMAP4: core retention support Tero Kristo
2012-10-18 9:20 ` [PATCHv9 1/8] ARM: OMAP: hwmod: Add support for per hwmod/module context lost count Tero Kristo
2012-10-27 3:00 ` Paul Walmsley
2012-11-21 23:05 ` Paul Walmsley
2012-10-18 9:20 ` [PATCHv9 2/8] ARM: OMAP4: PM: add errata support Tero Kristo
2012-11-05 22:36 ` Kevin Hilman
2012-11-06 21:52 ` Kevin Hilman
2012-11-07 10:11 ` Tero Kristo
2012-10-18 9:20 ` [PATCHv9 3/8] ARM: OMAP4460: Workaround for ROM bug because of CA9 r2pX GIC control register change Tero Kristo
2012-10-18 9:20 ` [PATCHv9 4/8] ARM: OMAP4: suspend: Program all domains to retention Tero Kristo
2012-10-18 9:20 ` [PATCHv9 5/8] ARM: OMAP4: PM: put all domains to OSWR during suspend Tero Kristo
2012-10-18 9:20 ` [PATCHv9 6/8] ARM: OMAP4: retrigger localtimers after re-enabling gic Tero Kristo
2012-10-27 2:51 ` Paul Walmsley
2012-11-05 22:25 ` Kevin Hilman
2012-11-06 9:15 ` Tero Kristo
2012-10-18 9:20 ` [PATCHv9 7/8] ARM: OMAP: PM: update target fpwrst to what pwrdm can reach Tero Kristo
2012-10-18 9:20 ` [PATCHv9 8/8] ARM: OMAP4: USB: power down MUSB PHY if not used Tero Kristo
2012-10-18 10:33 ` Felipe Balbi
2012-10-18 12:18 ` Tero Kristo
2012-10-18 13:53 ` Felipe Balbi
2012-10-18 14:39 ` Tero Kristo
2012-10-18 14:41 ` Felipe Balbi
2012-10-22 8:54 ` kishon
2012-10-22 9:07 ` Felipe Balbi
2012-10-22 9:25 ` kishon
2012-10-27 2:52 ` Paul Walmsley
2012-10-27 3:02 ` [PATCHv9 0/8] ARM: OMAP4: core retention support Paul Walmsley
2012-11-05 22:23 ` Kevin Hilman
2012-11-06 9:18 ` Tero Kristo
2012-11-06 21:19 ` Kevin Hilman [this message]
2012-11-07 10:17 ` Tero Kristo
2012-11-12 14:41 ` Tero Kristo
2012-11-13 19:18 ` Kevin Hilman
2012-11-07 18:35 ` Paul Walmsley
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