On Friday 15 November 2013 11:11 AM, Tony Lindgren wrote: > * Taras Kondratiuk <taras.kondratiuk@xxxxxxxxxx> [131115 08:03]: >> On 11/15/2013 05:36 PM, Tony Lindgren wrote: >>> * Tony Lindgren <tony@xxxxxxxxxxx> [131114 10:36]: >>>> * Grygorii Strashko <grygorii.strashko@xxxxxx> [131022 12:09]: >>>>> The same workaround as ff999b8a0983ee15668394ed49e38d3568fc6859 >>>>> "ARM: OMAP4460: Workaround for ROM bug because of CA9 r2pX GIC ..." >>>>> need to be applied not only when system is booting, but when MPUSS hits >>>>> OSWR state through CPUIdle too. Without this WA the same issue is >>>>> reproduced now on boards PandaES and Tablet/Blaze with SOM OMAP4460 >>>>> when CONFIG_CPU_IDLE is enabled. >>>>> After MPUSS has enterred OSWR and waken up: >>>>> - GIC distributor became disabled forever >>>>> - scheduling is not performed any more >>>>> >>>>> Cc: Kevin Hilman <khilman@xxxxxxxxxx> >>>>> Acked-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx> >>>>> Reported-by: Taras Kondratiuk <taras.kondratiuk@xxxxxxxxxx> >>>>> Signed-off-by: Grygorii Strashko <grygorii.strashko@xxxxxx> >>>> >>>> Applying into omap-for-v3.13/fixes thanks. >>> >>> Hmm looks like this breaks the build with randconfigs at least >>> with the attached .config, so dropping for now. >> >> Hi Tony >> Have you forgot to attach .config? > > Oops, sorry looks like I removed it already as I rebuilt the tree > and started a new set of randconfig build tests. > >>> arch/arm/mach-omap2/built-in.o: In function `omap_enter_idle_coupled': >>> :(.text+0xb48c): undefined reference to `pm44xx_errata' >> >> I assume that .config doesn't have CONFIG_SMP enabled while >> pm44xx_errata is defined in omap-smp.c. >> I think it should be a separate patch to move pm44xx_errata somewhere >> else, so this patch will remain the same. > > Yes something like that probably. Sounds like that should be then > patches before this fix. > >> Btw, do we need omap_enter_idle_coupled() in UP? > > That should be checked, am43xx may need it. > Nope. omap_enter_idle_coupled() is needed only for SMP systems. UP don't need couple idle functionality as such. Regards, Santosh -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
