cs5520: fix ->dma_base equal zero handling

[linux-2.6-omap-h63xx.git] / drivers / ide / pci / cs5520.c

diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c
index 1217d2a747fbbee24c305471dfe6e0113b66b1f4..fbce90048aecfc0ad1389c7503ab4159cef4a409 100644 (file)
--- a/drivers/ide/pci/cs5520.c
+++ b/drivers/ide/pci/cs5520.c
@@ -96,22 +96,13 @@ static void cs5520_set_pio_mode(ide_drive_t *drive, const u8 pio)
        reg = inb(hwif->dma_base + 0x02 + 8*controller);
        reg |= 1<<((drive->dn&1)+5);
        outb(reg, hwif->dma_base + 0x02 + 8*controller);
-
-       (void)ide_config_drive_speed(drive, XFER_PIO_0 + pio);
 }
 
-static int cs5520_tune_chipset(ide_drive_t *drive, const u8 speed)
+static void cs5520_set_dma_mode(ide_drive_t *drive, const u8 speed)
 {
        printk(KERN_ERR "cs55x0: bad ide timing.\n");
 
        cs5520_set_pio_mode(drive, 0);
-
-       /*
-        * FIXME: this is incorrect to return zero here but
-        * since all users of ide_set_xfer_rate() ignore
-        * the return value it is not a problem currently
-        */
-       return 0;
 }
 
 static int cs5520_config_drive_xfer_rate(ide_drive_t *drive)
@@ -150,26 +141,25 @@ static int cs5520_dma_on(ide_drive_t *drive)
 static void __devinit init_hwif_cs5520(ide_hwif_t *hwif)
 {
        hwif->set_pio_mode = &cs5520_set_pio_mode;
-       hwif->speedproc = &cs5520_tune_chipset;
-       hwif->ide_dma_check = &cs5520_config_drive_xfer_rate;
-       hwif->ide_dma_on = &cs5520_dma_on;
+       hwif->set_dma_mode = &cs5520_set_dma_mode;
 
-       if(!noautodma)
-               hwif->autodma = 1;
-       
-       if(!hwif->dma_base)
-       {
-               hwif->drives[0].autotune = 1;
-               hwif->drives[1].autotune = 1;
+       if (hwif->dma_base == 0) {
+               hwif->drives[1].autotune = hwif->drives[0].autotune = 1;
                return;
        }
 
+       hwif->ide_dma_check = &cs5520_config_drive_xfer_rate;
+       hwif->ide_dma_on = &cs5520_dma_on;
+
        /* ATAPI is harder so leave it for now */
        hwif->atapi_dma = 0;
        hwif->ultra_mask = 0;
        hwif->swdma_mask = 0;
        hwif->mwdma_mask = 0;
-       
+
+       if (!noautodma)
+               hwif->autodma = 1;
+
        hwif->drives[0].autodma = hwif->autodma;
        hwif->drives[1].autodma = hwif->autodma;
 }