sl82c105: add PIO autotune fallback to ->ide_dma_check

[linux-2.6-omap-h63xx.git] / drivers / ide / pci / scc_pata.c

diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c
index 66a526e0ece4bd4e1fbd127bde869b5b7cfc76b5..f839bdeb903b0e75b9f653a376154de9b1304abc 100644 (file)
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -190,15 +190,15 @@ scc_ide_outsl(unsigned long port, void *addr, u32 count)
 }
 
 /**
- *     scc_tune_pio    -       tune a drive PIO mode
- *     @drive: drive to tune
- *     @mode_wanted: the target operating mode
+ *     scc_set_pio_mode        -       set host controller for PIO mode
+ *     @drive: drive
+ *     @pio: PIO mode number
  *
  *     Load the timing settings for this device mode into the
  *     controller.
  */
 
-static void scc_tune_pio(ide_drive_t *drive, const u8 pio)
+static void scc_set_pio_mode(ide_drive_t *drive, const u8 pio)
 {
        ide_hwif_t *hwif = HWIF(drive);
        struct scc_ports *ports = ide_get_hwifdata(hwif);
@@ -221,22 +221,16 @@ static void scc_tune_pio(ide_drive_t *drive, const u8 pio)
        out_be32((void __iomem *)pioct_port, reg);
 }
 
-static void scc_set_pio_mode(ide_drive_t *drive, const u8 pio)
-{
-       scc_tune_pio(drive, pio);
-       ide_config_drive_speed(drive, XFER_PIO_0 + pio);
-}
-
 /**
- *     scc_tune_chipset        -       tune a drive DMA mode
- *     @drive: Drive to set up
- *     @speed: speed we want to achieve
+ *     scc_set_dma_mode        -       set host controller for DMA mode
+ *     @drive: drive
+ *     @speed: DMA mode
  *
  *     Load the timing settings for this device mode into the
  *     controller.
  */
 
-static int scc_tune_chipset(ide_drive_t *drive, const u8 speed)
+static void scc_set_dma_mode(ide_drive_t *drive, const u8 speed)
 {
        ide_hwif_t *hwif = HWIF(drive);
        struct scc_ports *ports = ide_get_hwifdata(hwif);
@@ -271,7 +265,7 @@ static int scc_tune_chipset(ide_drive_t *drive, const u8 speed)
                idx = speed - XFER_UDMA_0;
                break;
        default:
-               return 1;
+               return;
        }
 
        jcactsel = JCACTSELtbl[offset][idx];
@@ -287,8 +281,6 @@ static int scc_tune_chipset(ide_drive_t *drive, const u8 speed)
        }
        reg = JCTSStbl[offset][idx] << 16 | JCENVTtbl[offset][idx];
        out_be32((void __iomem *)udenvt_port, reg);
-
-       return ide_config_drive_speed(drive, speed);
 }
 
 /**
@@ -307,8 +299,7 @@ static int scc_config_drive_for_dma(ide_drive_t *drive)
        if (ide_tune_dma(drive))
                return 0;
 
-       if (ide_use_fast_pio(drive))
-               ide_set_max_pio(drive);
+       ide_set_max_pio(drive);
 
        return -1;
 }
@@ -708,8 +699,8 @@ static void __devinit init_hwif_scc(ide_hwif_t *hwif)
 
        hwif->dma_setup = scc_dma_setup;
        hwif->ide_dma_end = scc_ide_dma_end;
-       hwif->speedproc = scc_tune_chipset;
        hwif->set_pio_mode = scc_set_pio_mode;
+       hwif->set_dma_mode = scc_set_dma_mode;
        hwif->ide_dma_check = scc_config_drive_for_dma;
        hwif->ide_dma_test_irq = scc_dma_test_irq;
        hwif->udma_filter = scc_udma_filter;