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, 7 insertions, 0 deletions

diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c
index 328e2df66550..7a2a7b2a319a 100644
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -126,6 +126,11 @@ static u8 scc_ide_inb(unsigned long port)
         return (u8)data;
 }
 
+static u8 scc_read_sff_dma_status(ide_hwif_t *hwif)
+{
+        return (u8)in_be32((void *)hwif->dma_status);
+}
+
 static void scc_ide_insw(unsigned long port, void *addr, u32 count)
 {
         u16 *ptr = (u16 *)addr;
@@ -773,6 +778,8 @@ static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif)
 
         ide_set_hwifdata(hwif, ports);
 
+        hwif->read_sff_dma_status = scc_read_sff_dma_status;
+
         hwif->tf_load = scc_tf_load;
         hwif->tf_read = scc_tf_read;