Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-2.6-block.git] / drivers / hwmon / w83793.c
index 47dd398f72589ba795abbb11e550e9bb82fd4e00..80a2191bf1274d0b54581113972e669d6be0822d 100644 (file)
@@ -1164,7 +1164,7 @@ ERROR_SC_0:
 static int w83793_detect(struct i2c_client *client, int kind,
                         struct i2c_board_info *info)
 {
-       u8 tmp, bank;
+       u8 tmp, bank, chip_id;
        struct i2c_adapter *adapter = client->adapter;
        unsigned short address = client->addr;
 
@@ -1174,44 +1174,27 @@ static int w83793_detect(struct i2c_client *client, int kind,
 
        bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
 
-       if (kind < 0) {
-               tmp = bank & 0x80 ? 0x5c : 0xa3;
-               /* Check Winbond vendor ID */
-               if (tmp != i2c_smbus_read_byte_data(client,
-                                                       W83793_REG_VENDORID)) {
-                       pr_debug("w83793: Detection failed at check "
-                                "vendor id\n");
-                       return -ENODEV;
-               }
-
-               /* If Winbond chip, address of chip and W83793_REG_I2C_ADDR
-                  should match */
-               if ((bank & 0x07) == 0
-                && i2c_smbus_read_byte_data(client, W83793_REG_I2C_ADDR) !=
-                   (address << 1)) {
-                       pr_debug("w83793: Detection failed at check "
-                                "i2c addr\n");
-                       return -ENODEV;
-               }
-
+       tmp = bank & 0x80 ? 0x5c : 0xa3;
+       /* Check Winbond vendor ID */
+       if (tmp != i2c_smbus_read_byte_data(client, W83793_REG_VENDORID)) {
+               pr_debug("w83793: Detection failed at check vendor id\n");
+               return -ENODEV;
        }
 
-       /* We have either had a force parameter, or we have already detected the
-          Winbond. Determine the chip type now */
-
-       if (kind <= 0) {
-               if (0x7b == i2c_smbus_read_byte_data(client,
-                                                    W83793_REG_CHIPID)) {
-                       kind = w83793;
-               } else {
-                       if (kind == 0)
-                               dev_warn(&adapter->dev, "w83793: Ignoring "
-                                        "'force' parameter for unknown chip "
-                                        "at address 0x%02x\n", address);
-                       return -ENODEV;
-               }
+       /* If Winbond chip, address of chip and W83793_REG_I2C_ADDR
+          should match */
+       if ((bank & 0x07) == 0
+        && i2c_smbus_read_byte_data(client, W83793_REG_I2C_ADDR) !=
+           (address << 1)) {
+               pr_debug("w83793: Detection failed at check i2c addr\n");
+               return -ENODEV;
        }
 
+       /* Determine the chip type now */
+       chip_id = i2c_smbus_read_byte_data(client, W83793_REG_CHIPID);
+       if (chip_id != 0x7b)
+               return -ENODEV;
+
        strlcpy(info->type, "w83793", I2C_NAME_SIZE);
 
        return 0;