Bartlomiej Zolnierkiewicz wrote:
* Move dma_base check from sgiioc4_ide_setup_pci_device()
to ide_dma_sgiioc4().
This check should've been thrown out -- it's never true.
* Replace ide_dma_sgiioc4() 'unsigned long dma_base' argument
by 'const struct ide_port_info *d'.
* Move hwif->INB setup from ide_init_sgiioc4() to
sgiioc4_ide_setup_pci_device().
* Move ide_init_sgiioc4() call from sgiioc4_ide_setup_pci_device()
to ide_dma_sgiioc4().
* Convert the driver to use ->init_dma method.
Cc: Jeremy Higdon <jeremy@xxxxxxx>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
Index: b/drivers/ide/pci/sgiioc4.c
===================================================================
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -327,15 +327,21 @@ sgiioc4_INB(unsigned long port)
return reg;
}
+static void __devinit ide_init_sgiioc4(ide_hwif_t *);
+
/* Creates a dma map for the scatter-gather list entries */
static int __devinit
-ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base)
+ide_dma_sgiioc4(ide_hwif_t *hwif, const struct ide_port_info *d)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
+ unsigned long dma_base = pci_resource_start(dev, 0) + IOC4_DMA_OFFSET;
void __iomem *virt_dma_base;
int num_ports = sizeof (ioc4_dma_regs_t);
void *pad;
+ if (dma_base == 0)
+ return -1;
+
It should be quite obvious that 'dma_base' will never be 0 since
IOC4_DMA_OFFSET == 0x140.
printk(KERN_INFO "%s: BM-DMA at 0x%04lx-0x%04lx\n", hwif->name,
dma_base, dma_base + num_ports - 1);
It should print "MMIO-DMA" since the registers are memory-mapped.
Making another notch...
MBR, Sergei
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