On Thu, Feb 27, 2014 at 08:47:07PM +0100, Linus Walleij wrote: > On Wed, Feb 26, 2014 at 3:54 AM, Jenny Tc <jenny...@intel.com> wrote: > > > The idea is to allow pluggable charging algorithms. Currently we have only > > one > > charging algorithm proposed, but can have other charging algorithms (like > > pulse > > charging, rule based charging etc.). Based on the platform need, the > > algorithms > > can be selected. So this should be a user configurable option. I can add > > more > > explanation on when to select this option. > > Do you see a generic framework for pluggable algorithms on an abstracted > level, so that it could be used for the CC/CV charging, measurement and > temperature check algorithm that is found in e.g. > drivers/power/abx500_chargalg.c > drivers/power/ab8500_charger.c etc, or do you envision a set of pluggable > algorithms for this one hardware? > > I'm asking because these drivers are a massive set of code and we may > need to start to abstract out and define library functions and frameworks > already now before it becomes impossible to contain.
The idea of power_supply_charger driver is to move the charging logic outside of the charger chip driver. This makes the charger chip driver as a h/w abstraction layer without having any charging logic in it. power supply charger driver invokes charging algorithm to decide the CC, CV and to stop/start charging on different conditions (based on voltage/temperature ...). Detailed note on using power supply charger driver can be found in Documentation/power/power_supply_charger.txt which is part of patch power_supply-Introduce-generic-psy-charging-driver.patch -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
