On 5 December 2014 at 18:40, Adrian Hunter <adrian.hunter@xxxxxxxxx> wrote: > Hi > > Here are 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, however it is > not strictly necessary because HS400 re-tuning > should only be needed after runtime suspend when > there would not be a conflict. > > Nevertheless, this approach has more structure > and potentially more flexibility. > > > Adrian Hunter (13): > mmc: core: Simplify by adding mmc_execute_tuning() > mmc: host: Add facility to support re-tuning > mmc: core: Disable re-tuning when card is no longer initialized > mmc: core: Move mmc_card_removed() into mmc_start_request() > mmc: core: Add support for re-tuning before each request > mmc: core: Check re-tuning before retrying > mmc: core: Hold re-tuning during switch commands > mmc: core: Hold re-tuning during erase commands > mmc: core: Hold re-tuning while bkops ongoing > mmc: mmc: Comment that callers need to hold re-tuning if the card is put to sleep > mmc: core: Add support for HS400 re-tuning > mmc: sdhci: Always init buf_ready_int > mmc: sdhci: Change to new way of doing re-tuning I have applied patch1, patch4, and patch12. Let's discuss more about the re-tuning timer in the other thread for how to proceed with the rest of the patches. Kind regards Uffe > > drivers/mmc/core/core.c | 93 +++++++++++++++++++++++++++++++----- > drivers/mmc/core/core.h | 5 ++ > drivers/mmc/core/host.c | 63 +++++++++++++++++++++++++ > drivers/mmc/core/mmc.c | 58 ++++++++++++++++++----- > drivers/mmc/core/mmc_ops.c | 31 ++++++++---- > drivers/mmc/core/sd.c | 13 ++--- > drivers/mmc/core/sdio.c | 14 ++---- > drivers/mmc/host/sdhci.c | 115 ++++++--------------------------------------- > include/linux/mmc/host.h | 58 +++++++++++++++++++++++ > include/linux/mmc/sdhci.h | 3 -- > 10 files changed, 296 insertions(+), 157 deletions(-) > > > Regards > Adrian > > -- > To unsubscribe from this list: send the line "unsubscribe linux-mmc" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
