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>
diff --git a/drivers/video/vt8623fb.c b/drivers/video/vt8623fb.c
index eee01a2..f9b3e3d 100644
--- a/drivers/video/vt8623fb.c
+++ b/drivers/video/vt8623fb.c
@@ -661,6 +661,8 @@
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 @@
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;