Shawn,

On Sun, May 22, 2016 at 9:13 PM, Shawn Lin [off-list ref] 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 <redacted>
---

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 <redacted>
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