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arkfb: Compute VGA base iomem pointer explicitly.

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This allows the driver to work in multi-domain PCI
configurations.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
David Miller 2011-01-11 23:54:35 +00:00 committed by Paul Mundt
parent 94c322c30b
commit 892c24ca40
1 changed files with 11 additions and 0 deletions
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11
drivers/video/arkfb.c
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@ -951,6 +951,8 @@ static struct fb_ops arkfb_ops = {
/* PCI probe */
static int __devinit ark_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
struct pci_bus_region bus_reg;
struct resource vga_res;
struct fb_info *info;
struct arkfb_info *par;
int rc;
@ -1006,6 +1008,15 @@ static int __devinit ark_pci_probe(struct pci_dev *dev, const struct pci_device_
goto err_iomap;
}
bus_reg.start = 0;
bus_reg.end = 64 * 1024;
vga_res.flags = IORESOURCE_IO;
pcibios_bus_to_resource(dev, &vga_res, &bus_reg);
par->state.vgabase = (void __iomem *) vga_res.start;
/* FIXME get memsize */
regval = vga_rseq(par->state.vgabase, 0x10);
info->screen_size = (1 << (regval >> 6)) << 20;