On Mon, Feb 09, 2015 at 03:51:11PM -0700, Gilad Avidov wrote: > According to spmi spec a slave powers up into startup state and then > transitions into active state. Thus, the wakeup command is not required > before calling the slave's probe. The wakeup command is only needed for > slaves that are in sleep state after receiving the sleep command. > > This is a bug since spmi master controllers, such as spmi-pmic-arb, > which have no support for wakeup command return an error on that > command and thus fail before reaching a slave driver probe. If masters are required by the spec to support all commands as Stephen mentions, then I'd argue this is not a bug in the core code at all, but in the spmi-pmic-arb driver. But, unfortunately, having lost access to the spec, I'll defer. Regardless, I think this is useful as an optimization, just with dubious justification. Therefore, Acked-by: Josh Cartwright <joshc@xxxxxxxxxxxx> Josh -- 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
