* Re: OMAP baseline test results for v3.7-rc1
2012-10-20 17:20 ` OMAP baseline test results for v3.7-rc1 Paul Walmsley
@ 2012-10-22 16:13 ` Tero Kristo
0 siblings, 0 replies; 2+ messages in thread
From: Tero Kristo @ 2012-10-22 16:13 UTC (permalink / raw)
To: Paul Walmsley
Cc: Venkatraman S, khilman, linux-omap, linux-mmc, Felipe Balbi,
Chris Ball, linux-arm-kernel
On Sat, 2012-10-20 at 17:20 +0000, Paul Walmsley wrote:
> Hello Venkatraman,
>
> On Thu, 18 Oct 2012, Paul Walmsley wrote:
>
> > Here are some basic OMAP test results for Linux v3.7-rc1.
> > Logs and other details at http://www.pwsan.com/omap/testlogs/test_v3.7-rc1/
>
> ...
>
> > Failing tests: needing investigation
> > ------------------------------------
>
> ...
>
> > PM tests:
> >
> > * 3530es3beagle: hangs during off-mode dynamic idle test
> > - Unknown cause; not investigated
>
> Looks like this commit is causing some of our power management tests to
> fail on v3.7-rc1:
>
> commit 6c31b2150ff96755d24e0ab6d6fea08a7bf5c44c
> Author: Venkatraman S <svenkatr@ti.com>
> Date: Wed Aug 8 14:26:52 2012 +0530
>
> mmc: omap_hsmmc: remove access to SYSCONFIG register
>
> ...
>
> The failure can be seen in the following test log:
>
> http://www.pwsan.com/omap/transcripts/20121020-3530es3beagle-off-mode-fail-pre-revert.txt
>
> and with commit 6c31b215 reverted, the test succeeds:
>
> http://www.pwsan.com/omap/transcripts/20121020-3530es3beagle-off-mode-fail-post-revert.txt
>
>
> Could you please take a look and fix the problem?
Root cause for this issue is that the MMC IP is reset during off-mode,
but the driver doesn't expect this in its current form. There are a
couple of alternative ways to fix this. Either add a reset timeout to
the MMC driver code (which was removed by the bisected patch), or
alternatively add a global reset check to the hwmod code. I'll send a
patch for the global reset purpose in a bit for commenting.
-Tero
^ permalink raw reply [flat|nested] 2+ messages in thread