Reorder functions to avoid forward declaration.
Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx>
---
drivers/hwmon/gl518sm.c | 263 +++++++++++++++++++++++-------------------------
1 file changed, 126 insertions(+), 137 deletions(-)
diff --git a/drivers/hwmon/gl518sm.c b/drivers/hwmon/gl518sm.c
index 1e98305..0307d82 100644
--- a/drivers/hwmon/gl518sm.c
+++ b/drivers/hwmon/gl518sm.c
@@ -137,33 +137,98 @@ struct gl518_data {
u8 beep_enable; /* Boolean */
};
-static int gl518_probe(struct i2c_client *client,
- const struct i2c_device_id *id);
-static int gl518_detect(struct i2c_client *client, struct i2c_board_info *info);
-static void gl518_init_client(struct i2c_client *client);
-static int gl518_remove(struct i2c_client *client);
-static int gl518_read_value(struct i2c_client *client, u8 reg);
-static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value);
-static struct gl518_data *gl518_update_device(struct device *dev);
+/*
+ * Registers 0x07 to 0x0c are word-sized, others are byte-sized
+ * GL518 uses a high-byte first convention, which is exactly opposite to
+ * the SMBus standard.
+ */
+static int gl518_read_value(struct i2c_client *client, u8 reg)
+{
+ if ((reg >= 0x07) && (reg <= 0x0c))
+ return i2c_smbus_read_word_swapped(client, reg);
+ else
+ return i2c_smbus_read_byte_data(client, reg);
+}
-static const struct i2c_device_id gl518_id[] = {
- { "gl518sm", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, gl518_id);
+static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+ if ((reg >= 0x07) && (reg <= 0x0c))
+ return i2c_smbus_write_word_swapped(client, reg, value);
+ else
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
-/* This is the driver that will be inserted */
-static struct i2c_driver gl518_driver = {
- .class = I2C_CLASS_HWMON,
- .driver = {
- .name = "gl518sm",
- },
- .probe = gl518_probe,
- .remove = gl518_remove,
- .id_table = gl518_id,
- .detect = gl518_detect,
- .address_list = normal_i2c,
-};
+static struct gl518_data *gl518_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct gl518_data *data = i2c_get_clientdata(client);
+ int val;
+
+ mutex_lock(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+ dev_dbg(&client->dev, "Starting gl518 update\n");
+
+ data->alarms = gl518_read_value(client, GL518_REG_INT);
+ data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
+
+ val = gl518_read_value(client, GL518_REG_VDD_LIMIT);
+ data->voltage_min[0] = val & 0xff;
+ data->voltage_max[0] = (val >> 8) & 0xff;
+ val = gl518_read_value(client, GL518_REG_VIN1_LIMIT);
+ data->voltage_min[1] = val & 0xff;
+ data->voltage_max[1] = (val >> 8) & 0xff;
+ val = gl518_read_value(client, GL518_REG_VIN2_LIMIT);
+ data->voltage_min[2] = val & 0xff;
+ data->voltage_max[2] = (val >> 8) & 0xff;
+ val = gl518_read_value(client, GL518_REG_VIN3_LIMIT);
+ data->voltage_min[3] = val & 0xff;
+ data->voltage_max[3] = (val >> 8) & 0xff;
+
+ val = gl518_read_value(client, GL518_REG_FAN_COUNT);
+ data->fan_in[0] = (val >> 8) & 0xff;
+ data->fan_in[1] = val & 0xff;
+
+ val = gl518_read_value(client, GL518_REG_FAN_LIMIT);
+ data->fan_min[0] = (val >> 8) & 0xff;
+ data->fan_min[1] = val & 0xff;
+
+ data->temp_in = gl518_read_value(client, GL518_REG_TEMP_IN);
+ data->temp_max =
+ gl518_read_value(client, GL518_REG_TEMP_MAX);
+ data->temp_hyst =
+ gl518_read_value(client, GL518_REG_TEMP_HYST);
+
+ val = gl518_read_value(client, GL518_REG_MISC);
+ data->fan_div[0] = (val >> 6) & 0x03;
+ data->fan_div[1] = (val >> 4) & 0x03;
+ data->fan_auto1 = (val >> 3) & 0x01;
+
+ data->alarms &= data->alarm_mask;
+
+ val = gl518_read_value(client, GL518_REG_CONF);
+ data->beep_enable = (val >> 2) & 1;
+
+ if (data->type != gl518sm_r00) {
+ data->voltage_in[0] =
+ gl518_read_value(client, GL518_REG_VDD);
+ data->voltage_in[1] =
+ gl518_read_value(client, GL518_REG_VIN1);
+ data->voltage_in[2] =
+ gl518_read_value(client, GL518_REG_VIN2);
+ }
+ data->voltage_in[3] =
+ gl518_read_value(client, GL518_REG_VIN3);
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ mutex_unlock(&data->update_lock);
+
+ return data;
+}
/*
* Sysfs stuff
@@ -539,6 +604,26 @@ static int gl518_detect(struct i2c_client *client, struct i2c_board_info *info)
return 0;
}
+/*
+ * Called when we have found a new GL518SM.
+ * Note that we preserve D4:NoFan2 and D2:beep_enable.
+ */
+static void gl518_init_client(struct i2c_client *client)
+{
+ /* Make sure we leave D7:Reset untouched */
+ u8 regvalue = gl518_read_value(client, GL518_REG_CONF) & 0x7f;
+
+ /* Comparator mode (D3=0), standby mode (D6=0) */
+ gl518_write_value(client, GL518_REG_CONF, (regvalue &= 0x37));
+
+ /* Never interrupts */
+ gl518_write_value(client, GL518_REG_MASK, 0x00);
+
+ /* Clear status register (D5=1), start (D6=1) */
+ gl518_write_value(client, GL518_REG_CONF, 0x20 | regvalue);
+ gl518_write_value(client, GL518_REG_CONF, 0x40 | regvalue);
+}
+
static int gl518_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -584,27 +669,6 @@ exit_remove_files:
return err;
}
-
-/*
- * Called when we have found a new GL518SM.
- * Note that we preserve D4:NoFan2 and D2:beep_enable.
- */
-static void gl518_init_client(struct i2c_client *client)
-{
- /* Make sure we leave D7:Reset untouched */
- u8 regvalue = gl518_read_value(client, GL518_REG_CONF) & 0x7f;
-
- /* Comparator mode (D3=0), standby mode (D6=0) */
- gl518_write_value(client, GL518_REG_CONF, (regvalue &= 0x37));
-
- /* Never interrupts */
- gl518_write_value(client, GL518_REG_MASK, 0x00);
-
- /* Clear status register (D5=1), start (D6=1) */
- gl518_write_value(client, GL518_REG_CONF, 0x20 | regvalue);
- gl518_write_value(client, GL518_REG_CONF, 0x40 | regvalue);
-}
-
static int gl518_remove(struct i2c_client *client)
{
struct gl518_data *data = i2c_get_clientdata(client);
@@ -617,98 +681,23 @@ static int gl518_remove(struct i2c_client *client)
return 0;
}
-/*
- * Registers 0x07 to 0x0c are word-sized, others are byte-sized
- * GL518 uses a high-byte first convention, which is exactly opposite to
- * the SMBus standard.
- */
-static int gl518_read_value(struct i2c_client *client, u8 reg)
-{
- if ((reg >= 0x07) && (reg <= 0x0c))
- return i2c_smbus_read_word_swapped(client, reg);
- else
- return i2c_smbus_read_byte_data(client, reg);
-}
-
-static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value)
-{
- if ((reg >= 0x07) && (reg <= 0x0c))
- return i2c_smbus_write_word_swapped(client, reg, value);
- else
- return i2c_smbus_write_byte_data(client, reg, value);
-}
-
-static struct gl518_data *gl518_update_device(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct gl518_data *data = i2c_get_clientdata(client);
- int val;
-
- mutex_lock(&data->update_lock);
-
- if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
- || !data->valid) {
- dev_dbg(&client->dev, "Starting gl518 update\n");
-
- data->alarms = gl518_read_value(client, GL518_REG_INT);
- data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
-
- val = gl518_read_value(client, GL518_REG_VDD_LIMIT);
- data->voltage_min[0] = val & 0xff;
- data->voltage_max[0] = (val >> 8) & 0xff;
- val = gl518_read_value(client, GL518_REG_VIN1_LIMIT);
- data->voltage_min[1] = val & 0xff;
- data->voltage_max[1] = (val >> 8) & 0xff;
- val = gl518_read_value(client, GL518_REG_VIN2_LIMIT);
- data->voltage_min[2] = val & 0xff;
- data->voltage_max[2] = (val >> 8) & 0xff;
- val = gl518_read_value(client, GL518_REG_VIN3_LIMIT);
- data->voltage_min[3] = val & 0xff;
- data->voltage_max[3] = (val >> 8) & 0xff;
-
- val = gl518_read_value(client, GL518_REG_FAN_COUNT);
- data->fan_in[0] = (val >> 8) & 0xff;
- data->fan_in[1] = val & 0xff;
-
- val = gl518_read_value(client, GL518_REG_FAN_LIMIT);
- data->fan_min[0] = (val >> 8) & 0xff;
- data->fan_min[1] = val & 0xff;
-
- data->temp_in = gl518_read_value(client, GL518_REG_TEMP_IN);
- data->temp_max =
- gl518_read_value(client, GL518_REG_TEMP_MAX);
- data->temp_hyst =
- gl518_read_value(client, GL518_REG_TEMP_HYST);
-
- val = gl518_read_value(client, GL518_REG_MISC);
- data->fan_div[0] = (val >> 6) & 0x03;
- data->fan_div[1] = (val >> 4) & 0x03;
- data->fan_auto1 = (val >> 3) & 0x01;
-
- data->alarms &= data->alarm_mask;
-
- val = gl518_read_value(client, GL518_REG_CONF);
- data->beep_enable = (val >> 2) & 1;
-
- if (data->type != gl518sm_r00) {
- data->voltage_in[0] =
- gl518_read_value(client, GL518_REG_VDD);
- data->voltage_in[1] =
- gl518_read_value(client, GL518_REG_VIN1);
- data->voltage_in[2] =
- gl518_read_value(client, GL518_REG_VIN2);
- }
- data->voltage_in[3] =
- gl518_read_value(client, GL518_REG_VIN3);
-
- data->last_updated = jiffies;
- data->valid = 1;
- }
-
- mutex_unlock(&data->update_lock);
+static const struct i2c_device_id gl518_id[] = {
+ { "gl518sm", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, gl518_id);
- return data;
-}
+static struct i2c_driver gl518_driver = {
+ .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = "gl518sm",
+ },
+ .probe = gl518_probe,
+ .remove = gl518_remove,
+ .id_table = gl518_id,
+ .detect = gl518_detect,
+ .address_list = normal_i2c,
+};
module_i2c_driver(gl518_driver);
--
1.9.1
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