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Re-tuning is not possible when switched to the RPMB partition. However re-tuning should not be needed if re-tuning is done immediately before switching, a small set of operations is done, and then we immediately switch back to the main partition. To ensure that re-tuning can't be done for a short while, add a facility to "pause" re-tuning. The existing facility to hold / release re-tuning is used but it also flags re-tuning as needed to cause re-tuning before the next command (which will be the switch to RPMB). We also need to "unpause" in the recovery path, which is catered for by adding it to mmc_retune_disable(). Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>