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-rw-r--r--arch/x86/pci/fixup.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index c82cbf4c7226..6cff66dd0c91 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -353,6 +353,53 @@ static void __devinit pci_fixup_video(struct pci_dev *pdev)
353} 353}
354DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_video); 354DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_video);
355 355
356
357static struct dmi_system_id __devinitdata msi_k8t_dmi_table[] = {
358 {
359 .ident = "MSI-K8T-Neo2Fir",
360 .matches = {
361 DMI_MATCH(DMI_SYS_VENDOR, "MSI"),
362 DMI_MATCH(DMI_PRODUCT_NAME, "MS-6702E"),
363 },
364 },
365 {}
366};
367
368/*
369 * The AMD-Athlon64 board MSI "K8T Neo2-FIR" disables the onboard sound
370 * card if a PCI-soundcard is added.
371 *
372 * The BIOS only gives options "DISABLED" and "AUTO". This code sets
373 * the corresponding register-value to enable the soundcard.
374 *
375 * The soundcard is only enabled, if the mainborad is identified
376 * via DMI-tables and the soundcard is detected to be off.
377 */
378static void __devinit pci_fixup_msi_k8t_onboard_sound(struct pci_dev *dev)
379{
380 unsigned char val;
381 if (!dmi_check_system(msi_k8t_dmi_table))
382 return; /* only applies to MSI K8T Neo2-FIR */
383
384 pci_read_config_byte(dev, 0x50, &val);
385 if (val & 0x40) {
386 pci_write_config_byte(dev, 0x50, val & (~0x40));
387
388 /* verify the change for status output */
389 pci_read_config_byte(dev, 0x50, &val);
390 if (val & 0x40)
391 printk(KERN_INFO "PCI: Detected MSI K8T Neo2-FIR, "
392 "can't enable onboard soundcard!\n");
393 else
394 printk(KERN_INFO "PCI: Detected MSI K8T Neo2-FIR, "
395 "enabled onboard soundcard.\n");
396 }
397}
398DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237,
399 pci_fixup_msi_k8t_onboard_sound);
400DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237,
401 pci_fixup_msi_k8t_onboard_sound);
402
356/* 403/*
357 * Some Toshiba laptops need extra code to enable their TI TSB43AB22/A. 404 * Some Toshiba laptops need extra code to enable their TI TSB43AB22/A.
358 * 405 *