tree cd46206f7e099dac7eabba328906d3481f151e72
parent 7f5b1694eda72dc1fc1c48ebce92c3c237cde789
author Jean-Jacques Hiblot <jjhiblot@ti.com> 1562057636 +0200
committer Peng Fan <peng.fan@nxp.com> 1563157009 +0800

mmc: During a switch, poll on dat0 if available and check the final status

The switch operation can sometimes make the bus unreliable, in that case
the send_status parameter should be false to indicate not to poll using
CMD13. If polling on dat0 is possible, we should use it to detect the end
of the operation.
At the end of the operation it is safe to use CMD13 to get the status of
the card. It is important to do so because the operation may have failed.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>