cc Kevin On Tue, 10 Jan 2012, NeilBrown wrote:
> It seems that when cpuidle on an omap3 tries to switch to lower power > states, various things misbehave: > - UARTs lose characters Is this with off-mode enabled, or is this with only retention idle enabled? If off-mode is enabled, and incoming serial traffic is used to wake the system, it's known and expected that the first byte will be lost. This is an artifact of the hardware and seems to be unavoidable. > - dss loses sync Best to take this up with the DSS maintainer directly. > - HDQ seems to lose everything. Is this with off-mode enabled, or just with retention idle? If the former, this is hardly surprising as the HDQ driver (drivers/w1/masters/omap_hdq.c) doesn't contain any context save/restore code. In fact the HDQ driver doesn't even use PM runtime, so quite a bit of work is needed there. - Paul -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
