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Instead of registering a notification callback on the driver binding
protocol, and attempting to connect our I2C master handle each time
a new driver is registered, switch to the more obvious approach of
registering a notification callback on the I2C master protocol directly.
The original code was written under the assumption that it would make
the RTC available at an earlier time, but given that all handles that
are created during the execution of a driver entry point are connected
by DXE core right away (i.e., before StartImage() returns), this is not
really necessary, and in fact, may result in the driver already having
been connected by the time we attempt to connect it.
Note that it is now up to the platform to ensure that ConnectController()
is called for the handle if DXE core does not call it by itself, or does
call it but at a time when no I2C master protocol driver is available
yet.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
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Do a global replace of gPcf8563RealTimeClockLibI2cMasterProtolGuid with
gPcf8563RealTimeClockLibI2cMasterProtocolGuid.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
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Add a RealTimeClockLib implementation for the NXP PCF8563 as used on
the Socionext Developer Box board. Note that the standard I2C protocol
stack does not support runtime use, so this driver invokes the I2C master
protocol directly. This requires support from the platform side as well,
and so this driver will only attach to a I2C master that has the
gPcf8563RealTimeClockLibI2cMasterProtolGuid protocol installed on its
handle. It is up to the platform to ensure that the driver producing
the I2C master protocol in question is runtime capable, and is not
shared with the I2C protocol stack (i.e., it should not have the I2C
Bus Configuration Management protocol installed as well).
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
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