ide: use ide_tf_load() in execute_drive_cmd()

* Add IDE_TFLAG_OUT_DEVICE taskfile flag to indicate the need of writing
  the Device register and handle it in ide_tf_load().

  Update ide_tf_load() and {do_rw,flagged}_taskfile() users accordingly.

* Use struct ide_taskfile and ide_tf_load() in execute_drive_cmd().

* Make the debugging code dump all taskfile registers for both
  REQ_ATA_TYPE_{CMD,TASK} requests and move it to ide_tf_load()
  so it also covers REQ_ATA_TYPE_TASKFILE requests.

There should be no functionality changes caused by this patch
(unless DEBUG is defined).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/ide.h b/include/linux/ide.h
index 0b088f18d422..e1f652c6440c 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1066,6 +1066,7 @@ enum {
                                           IDE_TFLAG_OUT_LBAL |
                                           IDE_TFLAG_OUT_LBAM |
                                           IDE_TFLAG_OUT_LBAH,
+        IDE_TFLAG_OUT_DEVICE            = (1 << 14),
 };
 
 struct ide_taskfile {