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From: Tony Lindgren <tony@atomide.com>
To: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Faiz Abbas <faiz_abbas@ti.com>, Keerthy <j-keerthy@ti.com>,
	linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
	bcousson@baylibre.com
Subject: Re: [PATCH v2] arm: dts: Move am33xx and am43xx mmc nodes to sdhci-omap driver
Date: Tue, 19 May 2020 09:04:58 -0700
Message-ID: <20200519160458.GU37466@atomide.com> (raw)
In-Reply-To: <e37ed4be-aed5-8051-a9fd-c0704d947d75@ti.com>

* Tomi Valkeinen <tomi.valkeinen@ti.com> [200519 15:55]:
> (Dropping DT from cc)
> 
> On 19/05/2020 18:48, Tony Lindgren wrote:
> 
> > > > Suspend/resume on am43xx-gpevm is broken right now in mainline and the regression looks
> > > > like it is caused by the display subsystem. I have reported this to Tomi and
> > > > its being investigated.
> > > > 
> > > > Meanwhile I have tested this patch with display configs disabled and Keerthy's
> > > > suspend/resume tests pass on both am3 and am4.
> > 
> > OK great thanks for checking it. Do you have the display subsystem
> > related commit that broke PM? I'm wondering if my recent DSS platform
> > data removal changes might have caused the regression.
> 
> I spent a bit time looking at this, but unfortunately I wasn't even able to
> resume my AM4 evm from suspend. I tried with rtcwake and with plain console
> (with no_console_suspend). I did not have DSS loaded.

My test-bbb-suspend script seems to have:

sudo modprobe wkup_m3_ipc
sudo modprobe pm33xx
sudo modprobe rtc-omap
rtcwake -m mem -s 5

I think the same should work for am437x. But some boards do not support
deep sleep like am437x-idk.

> Anyone have quick hints on how to debug why resume doesn't seem to happen?

You might get some info with no_console_suspend, but that might also
cause other issues.

Regards,

Tony

  reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-12 20:38 Faiz Abbas
2020-05-13 16:23 ` Tony Lindgren
2020-05-15  9:34   ` Faiz Abbas
2020-05-19  8:22     ` Faiz Abbas
2020-05-19 15:48       ` Tony Lindgren
2020-05-19 15:54         ` Tomi Valkeinen
2020-05-19 16:04           ` Tony Lindgren [this message]
2020-05-27 16:05             ` Tony Lindgren
2020-05-29 21:53               ` Tony Lindgren

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