libata: Add a host flag to indicate lack of IORDY capability

This is the first preparation to doing the !IORDY cases properly.  Further
diffs will then add the needed logic to do it right.

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/libata.h b/include/linux/libata.h
index 596e0c18887..b870b20df43 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -172,6 +172,7 @@ enum {
         ATA_FLAG_DEBUGMSG       = (1 << 13),
         ATA_FLAG_SETXFER_POLLING= (1 << 14), /* use polling for SETXFER */
         ATA_FLAG_IGN_SIMPLEX    = (1 << 15), /* ignore SIMPLEX */
+        ATA_FLAG_NO_IORDY       = (1 << 16), /* controller lacks iordy */
 
         /* The following flag belongs to ap->pflags but is kept in
          * ap->flags because it's referenced in many LLDs and will be