On Sun, Jan 22, 2012 at 09:39:53PM +0000, Mark Brown wrote: > On Sun, Jan 22, 2012 at 06:48:36PM +0100, Sylwester Nawrocki wrote: > > On 01/22/2012 06:27 PM, Bill Gatliff wrote: > > > > I for one would rather see in-kernel drivers that require it, and then > > > In fact we have to deal with the opposite now, as some existing drivers > > have been used for multiple generations of SoC, where almost unchanged > > device IPs are deployed. Those drivers were originally written for the > > simplest SoCs. > > TBH I think most of the devices for which people are running these days > will be able to get some win from the system wide stuff - the WFI modes > aren't exactly the latest thing in hardware terms, it's just been a long > road to getting them supported. Infrastructure like Mark's PM QoS work > and Raphael's PM domains work has really helped a lot here.
The WFI stuff's been around for ages, and is generally just the core that is affected. The deep sleep options might be useful, so I don't see any reason not to do this. I also approve that it might allow people to shut down I2C units they're not using at the time to save power. -- Ben -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
