summaryrefslogtreecommitdiff
path: root/drivers/i2c/busses/i2c-nforce2.c
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2008-06-16 10:17:15 +0200
committerIngo Molnar <mingo@elte.hu>2008-06-16 10:17:15 +0200
commit28638ea4f8adb63f837e4436560ab16ab0388587 (patch)
tree2dab7a03d7696697c82ba62a03700d3a2f3639b1 /drivers/i2c/busses/i2c-nforce2.c
parentf781b03c4b1c713ac000877c8bbc31fc4164a29b (diff)
parent066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff)
Merge branch 'linus' into x86/nmitip-x86-nmi-2008-06-16_09.20_Mon
Conflicts: arch/x86/kernel/nmi_32.c
Diffstat (limited to 'drivers/i2c/busses/i2c-nforce2.c')
-rw-r--r--drivers/i2c/busses/i2c-nforce2.c28
1 files changed, 24 insertions, 4 deletions
diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c
index 3dac920e53ea..43c9f8df9509 100644
--- a/drivers/i2c/busses/i2c-nforce2.c
+++ b/drivers/i2c/busses/i2c-nforce2.c
@@ -50,6 +50,7 @@
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/delay.h>
+#include <linux/dmi.h>
#include <asm/io.h>
MODULE_LICENSE("GPL");
@@ -109,6 +110,18 @@ struct nforce2_smbus {
/* Misc definitions */
#define MAX_TIMEOUT 100
+/* We disable the second SMBus channel on these boards */
+static struct dmi_system_id __devinitdata nforce2_dmi_blacklist2[] = {
+ {
+ .ident = "DFI Lanparty NF4 Expert",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "DFI Corp,LTD"),
+ DMI_MATCH(DMI_BOARD_NAME, "LP UT NF4 Expert"),
+ },
+ },
+ { }
+};
+
static struct pci_driver nforce2_driver;
static void nforce2_abort(struct i2c_adapter *adap)
@@ -367,10 +380,17 @@ static int __devinit nforce2_probe(struct pci_dev *dev, const struct pci_device_
smbuses[0].base = 0; /* to have a check value */
}
/* SMBus adapter 2 */
- res2 = nforce2_probe_smb(dev, 5, NFORCE_PCI_SMB2, &smbuses[1], "SMB2");
- if (res2 < 0) {
- dev_err(&dev->dev, "Error probing SMB2.\n");
- smbuses[1].base = 0; /* to have a check value */
+ if (dmi_check_system(nforce2_dmi_blacklist2)) {
+ dev_err(&dev->dev, "Disabling SMB2 for safety reasons.\n");
+ res2 = -EPERM;
+ smbuses[1].base = 0;
+ } else {
+ res2 = nforce2_probe_smb(dev, 5, NFORCE_PCI_SMB2, &smbuses[1],
+ "SMB2");
+ if (res2 < 0) {
+ dev_err(&dev->dev, "Error probing SMB2.\n");
+ smbuses[1].base = 0; /* to have a check value */
+ }
}
if ((res1 < 0) && (res2 < 0)) {
/* we did not find even one of the SMBuses, so we give up */