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ast: don't bind to device if there is a loaded PCI driver.

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This stops this driver being used on top of the kernel modesetting
driver, so fallback works correctly.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2012-05-17 10:27:50 +01:00
parent c954c0874b
commit f981caeb7e
1 changed files with 15 additions and 0 deletions
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15
src/ast_driver.c
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@@ -295,6 +295,21 @@ ASTProbe(DriverPtr drv, int flags)
for (i = 0; i < numUsed; i++) {
ScrnInfoPtr pScrn = NULL;
#ifdef XSERVER_LIBPCIACCESS
{
struct pci_device *pPci = xf86GetPciInfoForEntity(usedChips[i]);
if (pci_device_has_kernel_driver(pPci)) {
xf86DrvMsg(0, X_ERROR,
"ast: The PCI device 0x%x at %2.2d@%2.2d:%2.2d:%1.1d has a kernel module claiming it.\n",
pPci->device_id, pPci->bus, pPci->domain, pPci->dev, pPci->func);
xf86DrvMsg(0, X_ERROR,
"cirrus: This driver cannot operate until it has been unloaded.\n");
return FALSE;
}
}
#endif
/* Allocate new ScrnInfoRec and claim the slot */
if ((pScrn = xf86ConfigPciEntity(pScrn, 0, usedChips[i],
ASTPciChipsets, 0, 0, 0, 0, 0)))