Shawn, On Sun, May 22, 2016 at 9:13 PM, Shawn Lin <shawn.lin@xxxxxxxxxxxxxx> wrote: > Controllers use data strobe line to latch data from devices > under hs400 mode, but not for cmd line. So since emmc 5.1, JEDEC > introduces enhanced strobe mode for latching cmd response from > emmc devices to host controllers. This new feature is optional, > so it depends both on device's cap and host's cap to decide > whether to use it or not. > > Signed-off-by: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx> > --- > > Changes in v5: None > Changes in v4: None Not terribly important, but things certainly did change in this patch since previous versions. > Changes in v3: None > Changes in v2: None > > drivers/mmc/core/bus.c | 3 +- > drivers/mmc/core/core.c | 9 ++++++ > drivers/mmc/core/mmc.c | 84 ++++++++++++++++++++++++++++++++++++++++++++++-- > include/linux/mmc/card.h | 1 + > include/linux/mmc/host.h | 11 +++++++ > include/linux/mmc/mmc.h | 3 ++ > 6 files changed, 108 insertions(+), 3 deletions(-) I don't see anything obviously bad about this patch, but I haven't gone deep into all the details of mmc_select_hs400es(), so I'm not sure I can really provide a full Reviewed tag. At least I have tested this, so: Tested-by: Douglas Anderson <dianders@xxxxxxxxxxxx> -- 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
