ide: add ->cable_detect method to ide_hwif_t

* Add ->cable_detect method to ide_hwif_t.

* Call the new method in ide_init_port() if:
  - the host supports UDMA modes > UDMA2 ('hwif->ultra_mask & 78')
  - DMA initialization was successful (if hwif->dma_base is not set
    ide_init_port() sets hwif->ultra_mask to zero)
  - "idex=ata66" is not used ('hwif->cbl != ATA_CBL_PATA40_SHORT')

* Convert PCI host drivers to use ->cable_detect method.

While at it:

* Factor out cable detection to separate functions (if not already done).

* hpt366.c/it8213.c/slc90e66.c:
  - don't check cable type if "idex=ata66" is used

* pdc202xx_new.c:
  - add __devinit tag to pdcnew_cable_detect()

* pdc202xx_old.c:
  - rename pdc202xx_old_cable_detect() to pdc2026x_old_cable_detect()
  - add __devinit tag to pdc2026x_old_cable_detect()

Reviewed-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 2 insertions, 6 deletions

diff --git a/drivers/ide/pci/pdc202xx_new.c b/drivers/ide/pci/pdc202xx_new.c
index bb29db03540e..b552960dc1c1 100644
--- a/drivers/ide/pci/pdc202xx_new.c
+++ b/drivers/ide/pci/pdc202xx_new.c
@@ -197,7 +197,7 @@ static void pdcnew_set_pio_mode(ide_drive_t *drive, const u8 pio)
         }
 }
 
-static u8 pdcnew_cable_detect(ide_hwif_t *hwif)
+static u8 __devinit pdcnew_cable_detect(ide_hwif_t *hwif)
 {
         if (get_indexed_reg(hwif, 0x0b) & 0x04)
                 return ATA_CBL_PATA40;
@@ -456,11 +456,7 @@ static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif)
         hwif->quirkproc = &pdcnew_quirkproc;
         hwif->resetproc = &pdcnew_reset;
 
-        if (hwif->dma_base == 0)
-                return;
-
-        if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-                hwif->cbl = pdcnew_cable_detect(hwif);
+        hwif->cable_detect = pdcnew_cable_detect;
 }
 
 static struct pci_dev * __devinit pdc20270_get_dev2(struct pci_dev *dev)