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 <svenk...@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 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
