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[PATCH] radeonfb: don't blow up VGA console on load 

The current radeonfb memset's the framebuffer to 0 when loaded.  This
removes occasional artifacts but has the nasty side effect that if you
load radeonfb without framebuffer console, you destroy the VGA text
buffer, font, etc...  radeon must not touch the framebuffer content when
it doesn't "own" it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Benjamin Herrenschmidt 2005-06-11 09:45:30 +10:00 committed by Linus Torvalds
parent c3315ede1b
commit 8d5f7b4353
1 changed files with 3 additions and 4 deletions
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7
drivers/video/aty/radeon_base.c
View File

@ -2374,10 +2374,9 @@ static int radeonfb_pci_register (struct pci_dev *pdev,
} while ( rinfo->fb_base == 0 &&
((rinfo->mapped_vram /=2) >= MIN_MAPPED_VRAM) );
if (rinfo->fb_base)
memset_io(rinfo->fb_base, 0, rinfo->mapped_vram);
else {
printk (KERN_ERR "radeonfb (%s): cannot map FB\n", pci_name(rinfo->pdev));
if (rinfo->fb_base == NULL) {
printk (KERN_ERR "radeonfb (%s): cannot map FB\n",
pci_name(rinfo->pdev));
ret = -EIO;
goto err_unmap_rom;
}