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vt8623fb: Compute VGA base iomem pointer explicitly. 

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 23:55:17 +00:00 committed by Paul Mundt
parent 892c24ca40
commit 6a2f6d5e97
1 changed files with 11 additions and 0 deletions
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11
drivers/video/vt8623fb.c
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@ -661,6 +661,8 @@ static struct fb_ops vt8623fb_ops = {
static int __devinit vt8623_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 vt8623fb_info *par;
unsigned int memsize1, memsize2;
@ -719,6 +721,15 @@ static int __devinit vt8623_pci_probe(struct pci_dev *dev, const struct pci_devi
goto err_iomap_2;
}
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;
/* Find how many physical memory there is on card */
memsize1 = (vga_rseq(par->state.vgabase, 0x34) + 1) >> 1;
memsize2 = vga_rseq(par->state.vgabase, 0x39) << 2;