* Dave Gerlach <d-gerlach@xxxxxx> [160413 18:51]: > Depending on timing during the resume path from off mode on 36xx, we may > see external aborts. These seem to be caused by the following: > > - OMAP3 Advisory 1.62 "MPU Cannot Exit from Standby" says we need to > disable disable intc autoidle before WFI > > - DM3730 Advisory 1.106 "MPU Leaves MSTANDBY State Before IDLEREQ of > Interrupt Controller is Released" says we need to wait before > accessing intc > > omap3_intc_resume_idle restores the intc autoidle for all resume paths, > however in the resume path from off mode only it is also being restored > by omap_intc_restore_context before this call to omap3_intc_resume_idle > happens. The second restore of the intc autoidle in this path is what > appears to be causing the external abort so for the off mode resume path > let's rely on omap_intc_restore_context to restore intc autoidle, and > for all other paths let omap3_intc_resume_idle handle it as it is now. > > Signed-off-by: Dave Gerlach <d-gerlach@xxxxxx> > --- > v1->v2: > - Rebased on v4.6-rc1 > - Tested with and without patch and no abort seen on v4.6-rc1 > - Series at [1] that v1 was based on alone on v4.6-rc1 sees abort, > if series is applied on this patch abort goes away Thanks for updating it, applying into omap-for-v4.6/fixes. Regards, Tony -- 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
