tree 7830d735335d48c2de2f8acf433cb95c20bfc69d
parent 29e0cfb4f77f7aa369136302cee14a91e22dca71
author Maxime Ripard <maxime.ripard@free-electrons.com> 1478272688 +0100
committer Jaehoon Chung <jh80.chung@samsung.com> 1479270617 +0900

mmc: Retry the switch command

Some eMMC will fail at the first switch, but would succeed in a subsequent
one.

Make sure we try several times to cover those cases. The number of retries
(and the behaviour) is currently what is being used in Linux.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Tom Rini <trini@konsulko.com>