From: Andreas Kemnade <andreas@kemnade.info>
To: Tony Lindgren <tony@atomide.com>
Cc: Jarkko Nikula <jarkko.nikula@bitmer.com>,
linux-omap@vger.kernel.org,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Subject: Re: Regression with e428e250fde6 on BeagleBoard Rev C2
Date: Mon, 20 Sep 2021 16:52:16 +0200 [thread overview]
Message-ID: <20210920165216.34abc4dd@aktux> (raw)
In-Reply-To: <YUiOA4QEbZXPmQ7F@atomide.com>
Hi,
On Mon, 20 Sep 2021 16:34:59 +0300
Tony Lindgren <tony@atomide.com> wrote:
> > I fail to understand how omap3isp affects this since it actually disable
> > clocks after probe. Does it keep some power domain active which then
> > keeps the timer active etc?
>
> Sounds like it's because omap3isp never allows the SoC to enter deeper
> idle states. The mpu clock is stopped for idle states.
On GTA04 I experienced also some strange pm issues with omap3isp:
rmmod clears up everything fine.
After probing, clocks seems to be turned off, but power consumption
does not drop. It only drops when there is an iommu_detach paired to
that iommu_attach in the driver.
But if I add it, the driver does not work properly.
Regards,
Andreas
next prev parent reply other threads:[~2021-09-20 15:25 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-19 17:41 Regression with e428e250fde6 on BeagleBoard Rev C2 Jarkko Nikula
2021-09-20 13:34 ` Tony Lindgren
2021-09-20 14:52 ` Andreas Kemnade [this message]
2021-09-21 7:00 ` Tony Lindgren
2021-09-21 16:25 ` Andreas Kemnade
2021-09-20 16:35 ` Jarkko Nikula
2021-09-21 7:00 ` Tony Lindgren
2021-09-21 17:49 ` Jarkko Nikula
2021-09-22 10:07 ` Tony Lindgren
2021-09-22 17:21 ` Jarkko Nikula
2021-09-23 5:41 ` Tony Lindgren
2021-09-23 18:03 ` Jarkko Nikula
2021-09-24 7:02 ` Tony Lindgren
2021-09-25 14:55 ` Jarkko Nikula
2021-09-30 7:04 ` Tony Lindgren
2021-10-20 17:52 ` Jarkko Nikula
2021-10-21 13:58 ` Tony Lindgren
2021-10-21 18:10 ` Jarkko Nikula
2021-10-24 6:41 ` Tony Lindgren
2021-09-20 18:19 ` H. Nikolaus Schaller
2021-09-21 7:02 ` Tony Lindgren
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210920165216.34abc4dd@aktux \
--to=andreas@kemnade.info \
--cc=jarkko.nikula@bitmer.com \
--cc=laurent.pinchart@ideasonboard.com \
--cc=linux-omap@vger.kernel.org \
--cc=tony@atomide.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.