>>-----Original Message----- >>From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of Mike >>Rapoport >>Sent: Friday, July 30, 2010 12:41 AM >>To: Mikko Rapeli >>Cc: linux-omap@xxxxxxxxxxxxxxx; Turquette, Mike; sameo@xxxxxxxxxxxxxxx >>Subject: Re: [PATCH v2] twl4030 reboot workaround >> >>Hi >> >>On Thu, Jul 29, 2010 at 9:41 AM, Mikko Rapeli >><ext-mikko.rapeli@xxxxxxxxx> wrote: >>> From: Mikko Rapeli <ext-mikko.rapeli@xxxxxxxxx> >>> >>> Original patch: http://marc.info/?l=linux-omap&m=126522625032441&w=2 >>> >>> "Removes TWL4030 sleep script prior to rebooting, only on OMAP3. This is >>> necessary since DPLL3 reset causes SYS_OFFMODE pin to go low, resulting >>> in the sleep script being executed on TWL4030. This usually results in >>> VDD1 & VDD2 voltage collapse while ROM code is executing, followed by an >>> MPU Watch Dog reset or worse, an irrecoverable hang." >> >>I had a similar issue when my system hanged on hard reset when there >>was a TWL sleep script installed. >>The workaround I've found was to install the sleep script immediately >>before entering the suspend state and remove the script on the resume >>path. >>If you think that such approach is appropriate I can send a patch. How do you hit the off state(Vdd's at 0 V) in the idle path then? Or do you do this every time in the idle thread also? Regards Thara -- 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
