hwmon: (lm85) Simplify device initialization function

Clean up and simplify the device initialization function:
* Degrade error messages to warnings - what they really are.
* Stop warning about VxI mode, we don't really care.
* Drop comment about lack of limit initialization - that's the standard
  way, all hardware monitoring drivers do that.
* Only read the configuration register once.
* Only write back to the configuration register if needed.
* Don't attempt to clear the lock bit, it locks itself to 1.
* Move the function to before it's called, so that we no longer need to
  forware declare it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>

1 files changed, 18 insertions, 43 deletions

diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c
index c7e10af0173f..12d446f54f97 100644
--- a/drivers/hwmon/lm85.c
+++ b/drivers/hwmon/lm85.c
@@ -318,7 +318,6 @@ static int lm85_detach_client(struct i2c_client *client);
 static int lm85_read_value(struct i2c_client *client, u8 reg);
 static void lm85_write_value(struct i2c_client *client, u8 reg, int value);
 static struct lm85_data *lm85_update_device(struct device *dev);
-static void lm85_init_client(struct i2c_client *client);
 
 
 static struct i2c_driver lm85_driver = {
@@ -1086,6 +1085,24 @@ static const struct attribute_group lm85_group_in567 = {
         .attrs = lm85_attributes_in567,
 };
 
+static void lm85_init_client(struct i2c_client *client)
+{
+        int value;
+
+        /* Start monitoring if needed */
+        value = lm85_read_value(client, LM85_REG_CONFIG);
+        if (!(value & 0x01)) {
+                dev_info(&client->dev, "Starting monitoring\n");
+                lm85_write_value(client, LM85_REG_CONFIG, value | 0x01);
+        }
+
+        /* Warn about unusual configuration bits */
+        if (value & 0x02)
+                dev_warn(&client->dev, "Device configuration is locked\n");
+        if (!(value & 0x04))
+                dev_warn(&client->dev, "Device is not ready\n");
+}
+
 static int lm85_detect(struct i2c_adapter *adapter, int address,
                 int kind)
 {
@@ -1330,48 +1347,6 @@ static void lm85_write_value(struct i2c_client *client, u8 reg, int value)
         }
 }
 
-static void lm85_init_client(struct i2c_client *client)
-{
-        int value;
-        struct lm85_data *data = i2c_get_clientdata(client);
-
-        dev_dbg(&client->dev, "Initializing device\n");
-
-        /* Warn if part was not "READY" */
-        value = lm85_read_value(client, LM85_REG_CONFIG);
-        dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value);
-        if (value & 0x02) {
-                dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n",
-                        i2c_adapter_id(client->adapter), client->addr);
-        }
-        if (!(value & 0x04)) {
-                dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
-                        i2c_adapter_id(client->adapter), client->addr);
-        }
-        if (value & 0x10
-            && (data->type == adm1027
-                || data->type == adt7463)) {
-                dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set.  "
-                        "Please report this to the lm85 maintainer.\n",
-                        i2c_adapter_id(client->adapter), client->addr);
-        }
-
-        /* WE INTENTIONALLY make no changes to the limits,
-         *   offsets, pwms, fans and zones.  If they were
-         *   configured, we don't want to mess with them.
-         *   If they weren't, the default is 100% PWM, no
-         *   control and will suffice until 'sensors -s'
-         *   can be run by the user.
-         */
-
-        /* Start monitoring */
-        value = lm85_read_value(client, LM85_REG_CONFIG);
-        /* Try to clear LOCK, Set START, save everything else */
-        value = (value & ~0x02) | 0x01;
-        dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
-        lm85_write_value(client, LM85_REG_CONFIG, value);
-}
-
 static struct lm85_data *lm85_update_device(struct device *dev)
 {
         struct i2c_client *client = to_i2c_client(dev);