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audk/EmbeddedPkg/RealTimeClockRuntimeDxe
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Ard Biesheuvel 517cf87794 EmbeddedPkg/RealTimeClockRuntimeDxe: move common functionality into core 
RealTimeClockRuntimeDxe defers the hardware/platform specific handling
of reading/setting the hardware clock to RealTimeClockLib, but for
unknown reasons, it also defers common functionality such as input
validation and recording the timezone and DST settings (which are
informational only and not managed by hardware)

This has led to a lot of duplication in implementations of RealTimeClockLib
as well as TimeBaseLib, to the point where each library implementation
has its own set of UEFI variables to record the timezone and DST settings.
This makes little sense, and so let's update RealTimeClockRuntimeDxe now
to allow future implementations to rely on the core driver to take care of
these things.

Note that reading the timezone and DST settings occurs before calling into
the library, so we can phase out this behavior gradually from library
implementations in EDK2, edk2-platforms or out of tree.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
 		2017-11-13 13:33:26 +00:00
..
RealTimeClock.c EmbeddedPkg/RealTimeClockRuntimeDxe: move common functionality into core 2017-11-13 13:33:26 +00:00
RealTimeClockRuntimeDxe.inf EmbeddedPkg/RealTimeClockRuntimeDxe: move common functionality into core 2017-11-13 13:33:26 +00:00