On Thu, Sep 18, 2014 at 03:47:20PM -0700, Kumar Gala wrote: > On Sep 18, 2014, at 3:32 PM, Josh Cartwright <joshc@xxxxxxxxxxxxxx> wrote: > > > By converting to the restart_notifier mechanism for restart, we allow > > for other mechanisms, like the watchdog, to be used for restart in the > > case where PS_HOLD has failed to reset the chip. > > > > Choose priority 128, as according to documentation, this mechanism "is > > sufficient to restart the entire system?. > > Will we use a higher priority for watchdog? or how would we fail over to watchdog? The registered restart handlers are called in (descending) priority order. This driver registers as 128, but conceivably there could be some super-board-specific restart mechanism that can register itself as higher priority than this and it will be attempted first. If PS_HOLD doesn't work, the lower priority restart handlers will continue to be called, including the watchdog, which is registering with the lowest priority (0). -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
