[PATCH] I2C: New max6875 driver may corrupt EEPROMs

[powerpc.git] / drivers / i2c / chips / max6875.c

diff --git a/drivers/i2c/chips/max6875.c b/drivers/i2c/chips/max6875.c
index fe6b150..c4f14d9 100644 (file)
--- a/drivers/i2c/chips/max6875.c
+++ b/drivers/i2c/chips/max6875.c
@@ -37,7 +37,8 @@
 #include <linux/i2c-sensor.h>
 
 /* Addresses to scan */
-static unsigned short normal_i2c[] = {0x50, 0x52, I2C_CLIENT_END};
+/* No address scanned by default, as this could corrupt standard EEPROMS. */
+static unsigned short normal_i2c[] = {I2C_CLIENT_END};
 static unsigned int normal_isa[] = {I2C_CLIENT_ISA_END};
 
 /* Insmod parameters */
@@ -369,6 +370,9 @@ static int max6875_detect(struct i2c_adapter *adapter, int address, int kind)
        new_client->driver = &max6875_driver;
        new_client->flags = 0;
 
+       /* Prevent 24RF08 corruption */
+       i2c_smbus_write_quick(new_client, 0);
+
        /* Setup the user section */
        data->blocks[max6875_eeprom_user].type    = max6875_eeprom_user;
        data->blocks[max6875_eeprom_user].slices  = USER_EEPROM_SLICES;