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[PATCH] PCI: MSI-K8T-Neo2-Fir: run only where needed 

Be more selective when running the MSI-K8T-Neo2Fir soundcard PCI quirk so
as not to run this on hardware where it's probably not needed.

Signed-off-by: Chris Wedgwood <cw@f00f.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Chris Wedgwood 2006-06-05 00:13:21 -07:00 committed by Greg Kroah-Hartman
parent d71374dafb
commit bd91fde952
1 changed files with 10 additions and 7 deletions
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17
drivers/pci/quirks.c
View File

@ -889,27 +889,30 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_e
* when a PCI-Soundcard is added. The BIOS only gives Options
* "Disabled" and "AUTO". This Quirk Sets the corresponding
* Register-Value to enable the Soundcard.
*
* FIXME: Presently this quirk will run on anything that has an 8237
* which isn't correct, we need to check DMI tables or something in
* order to make sure it only runs on the MSI-K8T-Neo2Fir. Because it
* runs everywhere at present we suppress the printk output in most
* irrelevant cases.
*/
static void __init k8t_sound_hostbridge(struct pci_dev *dev)
{
unsigned char val;
printk(KERN_INFO "PCI: Quirk-MSI-K8T Soundcard On\n");
pci_read_config_byte(dev, 0x50, &val);
if (val == 0x88 || val == 0xc8) {
/* Assume it's probably a MSI-K8T-Neo2Fir */
printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, attempting to turn soundcard ON\n");
pci_write_config_byte(dev, 0x50, val & (~0x40));
/* Verify the Change for Status output */
pci_read_config_byte(dev, 0x50, &val);
if (val & 0x40)
printk(KERN_INFO "PCI: MSI-K8T soundcard still off\n");
printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard still off\n");
else
printk(KERN_INFO "PCI: MSI-K8T soundcard on\n");
} else {
printk(KERN_INFO "PCI: Unexpected Value in PCI-Register: "
"no Change!\n");
printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard on\n");
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_hostbridge);