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The system power monitor function, aka. PSYS, of the ISL9238 chip is disabled by default, this patch enables PSYS monitor in the EC driver. BUG=b:62041842 BRANCH=none TEST=Able to read non-zero value at the MSR of MSR_PLATFORM_ENERGY_STATUS (0x64D) by iotools; Also, kernel powercap driver probes PSYS domain correctly; Such that the kernel exports the sysfs node of intel-rapl:1 Change-Id: I7a533032815e873ae74dca42ec07041be0d0f975 Signed-off-by: Harry Pan <harry.pan@intel.com> Reviewed-on: https://chromium-review.googlesource.com/520549 Tested-by: Kane Chen <kane.chen@intel.com> Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit For instructions on building from source, refer to http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly