On Thu, Dec 21, 2017 at 12:00 PM, Ognjen Galic <smclt30p@xxxxxxxxx> wrote: > This is a patch that implements a generic hooking API for the > generic ACPI battery driver. > > With this new generic API, drivers can expose platform specific > behaviour via sysfs attributes in /sys/class/power_supply/BATn/ > in a generic way. > > A perfect example of the need for this API are Lenovo ThinkPads. > > Lenovo ThinkPads have a ACPI extension that allows the setting of > start and stop charge thresholds in the EC and battery firmware > via ACPI. The thinkpad_acpi module can use this API to expose > sysfs attributes that it controls inside the ACPI battery driver > sysfs tree, under /sys/class/power_supply/BATN/. > > The file drivers/acpi/battery.h has been moved to > include/acpi/battery.h and the includes inside ac.c, sbs.c, and > battery.c have been adjusted to reflect that. > > When drivers hooks into the API, the API calls add_battery() for > each battery in the system that passes it a acpi_battery > struct. Then, the drivers can use device_create_file() to create > new sysfs attributes with that struct and identify the batteries > for per-battery attributes. > > v7: > * Implemented mutual exclusion for hooking methods and battery > callbacks > * Fixed a BUG where errors in other modules would occur when the > modules that depend on battery get unloaded > v8: > * Use list_for_each_safe instead of list_for_each for the module > exit function where deletion of nodes occurs Just two workflow / style comments: - usually we put changelog under --- line; - when you prepare patch series you may use -v<N> to create a version <N> automatically. -- With Best Regards, Andy Shevchenko -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
