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-rw-r--r--drivers/hwmon/abituguru3.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/hwmon/abituguru3.c b/drivers/hwmon/abituguru3.c
index f2086e99a9cb..f00f497b9ca9 100644
--- a/drivers/hwmon/abituguru3.c
+++ b/drivers/hwmon/abituguru3.c
@@ -30,6 +30,7 @@
#include <linux/platform_device.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
+#include <linux/dmi.h>
#include <asm/io.h>
/* uGuru3 bank addresses */
@@ -1112,11 +1113,12 @@ static int __init abituguru3_detect(void)
{
/* See if there is an uguru3 there. An idle uGuru3 will hold 0x00 or
0x08 at DATA and 0xAC at CMD. Sometimes the uGuru3 will hold 0x05
- at CMD instead, why is unknown. So we test for 0x05 too. */
+ or 0x55 at CMD instead, why is unknown. */
u8 data_val = inb_p(ABIT_UGURU3_BASE + ABIT_UGURU3_DATA);
u8 cmd_val = inb_p(ABIT_UGURU3_BASE + ABIT_UGURU3_CMD);
if (((data_val == 0x00) || (data_val == 0x08)) &&
- ((cmd_val == 0xAC) || (cmd_val == 0x05)))
+ ((cmd_val == 0xAC) || (cmd_val == 0x05) ||
+ (cmd_val == 0x55)))
return ABIT_UGURU3_BASE;
ABIT_UGURU3_DEBUG("no Abit uGuru3 found, data = 0x%02X, cmd = "
@@ -1139,6 +1141,15 @@ static int __init abituguru3_init(void)
int address, err;
struct resource res = { .flags = IORESOURCE_IO };
+#ifdef CONFIG_DMI
+ const char *board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
+
+ /* safety check, refuse to load on non Abit motherboards */
+ if (!force && (!board_vendor ||
+ strcmp(board_vendor, "http://www.abit.com.tw/")))
+ return -ENODEV;
+#endif
+
address = abituguru3_detect();
if (address < 0)
return address;