On 10/03/15 14:42, Adrian Hunter wrote: > Hi > > Here is V3 of some patches to move re-tuning support > out of sdhci and into the core, and add support for HS400 > re-tuning. > > Currently sdhci does re-tuning transparently by > calling sdhci_execute_tuning() from its ->request() > function. > > The problem with HS400 re-tuning is that it must be > done in HS200 mode. That means using switch commands > and making ios changes. That means it potentially > conflicts with other command sequences. The new > re-tuning support accomodates that.
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