ide: add drive->dma_mode field

Add dma_mode field to ide_drive_t matching dma_mode field used in
struct ata_device.

The validity of the field is restricted to ->dma_pio_mode method
only currently in IDE subsystem.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 4 insertions, 0 deletions

diff --git a/drivers/ide/aec62xx.c b/drivers/ide/aec62xx.c
index 878f8ec6dbe1..4c869872eb9a 100644
--- a/drivers/ide/aec62xx.c
+++ b/drivers/ide/aec62xx.c
@@ -136,6 +136,7 @@ static void aec6260_set_mode(ide_drive_t *drive, const u8 speed)
 
 static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio)
 {
+        drive->dma_mode = pio + XFER_PIO_0;
         drive->hwif->port_ops->set_dma_mode(drive, pio + XFER_PIO_0);
 }
 
diff --git a/drivers/ide/ide-xfer-mode.c b/drivers/ide/ide-xfer-mode.c
index cdae463f6b41..c2323869d92a 100644
--- a/drivers/ide/ide-xfer-mode.c
+++ b/drivers/ide/ide-xfer-mode.c
@@ -167,9 +167,11 @@ int ide_set_dma_mode(ide_drive_t *drive, const u8 mode)
         if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
                 if (ide_config_drive_speed(drive, mode))
                         return -1;
+                drive->dma_mode = mode;
                 port_ops->set_dma_mode(drive, mode);
                 return 0;
         } else {
+                drive->dma_mode = mode;
                 port_ops->set_dma_mode(drive, mode);
                 return ide_config_drive_speed(drive, mode);
         }
diff --git a/include/linux/ide.h b/include/linux/ide.h
index b5d2e9655059..746ef9fdabcb 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -516,6 +516,7 @@ struct ide_drive_s {
         u8      current_speed;  /* current transfer rate set */
         u8      desired_speed;  /* desired transfer rate set */
         u8      pio_mode;       /* for ->set_pio_mode _only_ */
+        u8      dma_mode;       /* for ->dma_pio_mode _only_ */
         u8      dn;             /* now wide spread use */
         u8      acoustic;       /* acoustic management */
         u8      media;          /* disk, cdrom, tape, floppy, ... */