Albert,
here is a patch for you to submit.
It creates a new global variable, is_broken_smbus,
which we can use in i2c-piix4 to not load.
The variable gets set to 1 if an IBM system ID is detected
in the DMI information.
mds
-------------- next part --------------
--- dmi_scan.c.orig Wed Jul 24 21:07:39 2002
+++ dmi_scan.c Wed Aug 14 22:13:09 2002
@@ -13,6 +13,7 @@
unsigned long dmi_broken;
int is_sony_vaio_laptop;
+int is_broken_smbus;
struct dmi_header
{
@@ -468,6 +469,20 @@
return 0;
}
+/*
+ * Don't access SMBus on IBM systems which get corrupted eeproms
+ */
+
+static __init int disable_smbus(struct dmi_blacklist *d)
+{
+ if (is_broken_smbus == 0)
+ {
+ is_broken_smbus = 1;
+ printk(KERN_INFO "%s machine detected. Disabling SMBus accesses.\n", d->ident);
+ }
+ return 0;
+}
+
/*
* Simple "print if true" callback
*/
@@ -737,6 +752,15 @@
*/
{ set_apm_ints, "IBM", { /* Allow interrupts during suspend on IBM laptops */
+ MATCH(DMI_SYS_VENDOR, "IBM"),
+ NO_MATCH, NO_MATCH, NO_MATCH
+ } },
+
+ /*
+ * SMBus / sensors settings
+ */
+
+ { disable_smbus, "IBM", {
MATCH(DMI_SYS_VENDOR, "IBM"),
NO_MATCH, NO_MATCH, NO_MATCH
} },
