ide: add ->read_sff_dma_status method

Add ->read_sff_dma_status method for reading DMA Status register
and use it instead of ->INB.

While at it:

* Use inb() directly in ns87415.c::ns87415_dma_end().

There should be no functional changes caused by this patch.

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

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/ide.h b/include/linux/ide.h
index f58548becac0..ca0efbb0a8b4 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -489,6 +489,8 @@ typedef struct hwif_s {
         const struct ide_port_ops       *port_ops;
         const struct ide_dma_ops        *dma_ops;
 
+        u8 (*read_sff_dma_status)(struct hwif_s *);
+
         void (*tf_load)(ide_drive_t *, struct ide_task_s *);
         void (*tf_read)(ide_drive_t *, struct ide_task_s *);