"Raja, Govindraj" <govindraj.raja@xxxxxx> writes: [...] > So incase of uart wakeups are disabled and uart tx/rx is requested > can we prevent MPU from low power state. I think that would be a mistake. The main point of disabling UART wakeups is to save power by preventing unwanted wakups on UARTs that don't need/want them. If we then leave MPU enabled because UART wakeups are disabled, that would defeat the power-saving goals of disabling wakeups in the first place. Presumably, if a user disables UART wakeups, it means either 1) that UART is not used or 2) performance is not critical. IMO, we simply need to ensure that the defaults are correct. When UARTs are initialized/enabled wakeups should be enabled by default. The user can then override this if desired, and will obviously see a performance impact. But that's what happens with wakeups disabled. Kevin -- 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
