mmc: Do not send status of send_status is false

Commit 44645f87de5 ("mmc: Fix mmc_switch excessive timeout") introduced
a side effect where CMD13 SEND_STATUS is issued in case mmc_wait_dat0()
does not return -ENOSYS and $send_status is not set. This happens on all
hardware which does implement .mmc_wait_dat0 callback, e.g. i.MX8M .

This leads to lengthy timeout before booting OS in case of eMMC in one
of the HS200/HS400 modes, since the card cannot respond to CMD13 while
downgrading from HS200/HS400 to regular HS mode.

Fix this by adding the missing conditional.

Fixes: 44645f87de5 ("mmc: Fix mmc_switch excessive timeout")
Signed-off-by: Marek Vasut <[email protected]>
Cc: Jaehoon Chung <[email protected]>
Cc: Kirill Kapranov <[email protected]>
Cc: Marek Behún <[email protected]>
Cc: Pantelis Antoniou <[email protected]>
Cc: Ye Li <[email protected]>
Reviewed-by: Jaehoon Chung <[email protected]>

0 files changed, 0 insertions, 0 deletions