lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

hwmon: (tmp401) Reorganize code to get rid of static forward declarations

Browse Source 
Signed-off-by: Andre Prendel <andre.prendel@gmx.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Andre Prendel
2010-05-27 19:58:49 +02:00
committed by Jean Delvare
parent 2b76d80adc
commit ea63c2b91f
1 changed files with 97 additions and 108 deletions
Download Patch File Download Diff File Expand all files Collapse all files

205
drivers/hwmon/tmp401.c
View File

@@ -91,17 +91,6 @@ static const u8 TMP411_TEMP_HIGHEST_LSB[2] = { 0x33, 0x37 };
#define TMP401_DEVICE_ID 0x11 #define TMP401_DEVICE_ID 0x11
#define TMP411_DEVICE_ID 0x12 #define TMP411_DEVICE_ID 0x12
/*
* Functions declarations
*/
static int tmp401_probe(struct i2c_client *client,
const struct i2c_device_id *id);
static int tmp401_detect(struct i2c_client *client,
struct i2c_board_info *info);
static int tmp401_remove(struct i2c_client *client);
static struct tmp401_data *tmp401_update_device(struct device *dev);
/* /*
* Driver data (common to all clients) * Driver data (common to all clients)
*/ */
@@ -113,18 +102,6 @@ static const struct i2c_device_id tmp401_id[] = {
}; };
MODULE_DEVICE_TABLE(i2c, tmp401_id); MODULE_DEVICE_TABLE(i2c, tmp401_id);
static struct i2c_driver tmp401_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "tmp401",
},
.probe = tmp401_probe,
.remove = tmp401_remove,
.id_table = tmp401_id,
.detect = tmp401_detect,
.address_list = normal_i2c,
};
/* /*
* Client data (each client gets its own) * Client data (each client gets its own)
*/ */
@@ -194,6 +171,71 @@ static u8 tmp401_crit_temp_to_register(long temp, u8 config)
return (temp + 500) / 1000; return (temp + 500) / 1000;
} }
static struct tmp401_data *tmp401_update_device_reg16(
struct i2c_client *client, struct tmp401_data *data)
{
int i;
for (i = 0; i < 2; i++) {
/*
* High byte must be read first immediately followed
* by the low byte
*/
data->temp[i] = i2c_smbus_read_byte_data(client,
TMP401_TEMP_MSB[i]) << 8;
data->temp[i] |= i2c_smbus_read_byte_data(client,
TMP401_TEMP_LSB[i]);
data->temp_low[i] = i2c_smbus_read_byte_data(client,
TMP401_TEMP_LOW_LIMIT_MSB_READ[i]) << 8;
data->temp_low[i] |= i2c_smbus_read_byte_data(client,
TMP401_TEMP_LOW_LIMIT_LSB[i]);
data->temp_high[i] = i2c_smbus_read_byte_data(client,
TMP401_TEMP_HIGH_LIMIT_MSB_READ[i]) << 8;
data->temp_high[i] |= i2c_smbus_read_byte_data(client,
TMP401_TEMP_HIGH_LIMIT_LSB[i]);
data->temp_crit[i] = i2c_smbus_read_byte_data(client,
TMP401_TEMP_CRIT_LIMIT[i]);
if (data->kind == tmp411) {
data->temp_lowest[i] = i2c_smbus_read_byte_data(client,
TMP411_TEMP_LOWEST_MSB[i]) << 8;
data->temp_lowest[i] |= i2c_smbus_read_byte_data(
client, TMP411_TEMP_LOWEST_LSB[i]);
data->temp_highest[i] = i2c_smbus_read_byte_data(
client, TMP411_TEMP_HIGHEST_MSB[i]) << 8;
data->temp_highest[i] |= i2c_smbus_read_byte_data(
client, TMP411_TEMP_HIGHEST_LSB[i]);
}
}
return data;
}
static struct tmp401_data *tmp401_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct tmp401_data *data = i2c_get_clientdata(client);
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
data->status = i2c_smbus_read_byte_data(client, TMP401_STATUS);
data->config = i2c_smbus_read_byte_data(client,
TMP401_CONFIG_READ);
tmp401_update_device_reg16(client, data);
data->temp_crit_hyst = i2c_smbus_read_byte_data(client,
TMP401_TEMP_CRIT_HYST);
data->last_updated = jiffies;
data->valid = 1;
}
mutex_unlock(&data->update_lock);
return data;
}
static ssize_t show_temp_value(struct device *dev, static ssize_t show_temp_value(struct device *dev,
struct device_attribute *devattr, char *buf) struct device_attribute *devattr, char *buf)
{ {
@@ -535,6 +577,27 @@ static int tmp401_detect(struct i2c_client *client,
return 0; return 0;
} }
static int tmp401_remove(struct i2c_client *client)
{
struct tmp401_data *data = i2c_get_clientdata(client);
int i;
if (data->hwmon_dev)
hwmon_device_unregister(data->hwmon_dev);
for (i = 0; i < ARRAY_SIZE(tmp401_attr); i++)
device_remove_file(&client->dev, &tmp401_attr[i].dev_attr);
if (data->kind == tmp411) {
for (i = 0; i < ARRAY_SIZE(tmp411_attr); i++)
device_remove_file(&client->dev,
&tmp411_attr[i].dev_attr);
}
kfree(data);
return 0;
}
static int tmp401_probe(struct i2c_client *client, static int tmp401_probe(struct i2c_client *client,
const struct i2c_device_id *id) const struct i2c_device_id *id)
{ {
@@ -587,91 +650,17 @@ exit_remove:
return err; return err;
} }
static int tmp401_remove(struct i2c_client *client) static struct i2c_driver tmp401_driver = {
{ .class = I2C_CLASS_HWMON,
struct tmp401_data *data = i2c_get_clientdata(client); .driver = {
int i; .name = "tmp401",
},
if (data->hwmon_dev) .probe = tmp401_probe,
hwmon_device_unregister(data->hwmon_dev); .remove = tmp401_remove,
.id_table = tmp401_id,
for (i = 0; i < ARRAY_SIZE(tmp401_attr); i++) .detect = tmp401_detect,
device_remove_file(&client->dev, &tmp401_attr[i].dev_attr); .address_list = normal_i2c,
};
if (data->kind == tmp411) {
for (i = 0; i < ARRAY_SIZE(tmp411_attr); i++)
device_remove_file(&client->dev,
&tmp411_attr[i].dev_attr);
}
kfree(data);
return 0;
}
static struct tmp401_data *tmp401_update_device_reg16(
struct i2c_client *client, struct tmp401_data *data)
{
int i;
for (i = 0; i < 2; i++) {
/*
* High byte must be read first immediately followed
* by the low byte
*/
data->temp[i] = i2c_smbus_read_byte_data(client,
TMP401_TEMP_MSB[i]) << 8;
data->temp[i] |= i2c_smbus_read_byte_data(client,
TMP401_TEMP_LSB[i]);
data->temp_low[i] = i2c_smbus_read_byte_data(client,
TMP401_TEMP_LOW_LIMIT_MSB_READ[i]) << 8;
data->temp_low[i] |= i2c_smbus_read_byte_data(client,
TMP401_TEMP_LOW_LIMIT_LSB[i]);
data->temp_high[i] = i2c_smbus_read_byte_data(client,
TMP401_TEMP_HIGH_LIMIT_MSB_READ[i]) << 8;
data->temp_high[i] |= i2c_smbus_read_byte_data(client,
TMP401_TEMP_HIGH_LIMIT_LSB[i]);
data->temp_crit[i] = i2c_smbus_read_byte_data(client,
TMP401_TEMP_CRIT_LIMIT[i]);
if (data->kind == tmp411) {
data->temp_lowest[i] = i2c_smbus_read_byte_data(client,
TMP411_TEMP_LOWEST_MSB[i]) << 8;
data->temp_lowest[i] |= i2c_smbus_read_byte_data(
client, TMP411_TEMP_LOWEST_LSB[i]);
data->temp_highest[i] = i2c_smbus_read_byte_data(
client, TMP411_TEMP_HIGHEST_MSB[i]) << 8;
data->temp_highest[i] |= i2c_smbus_read_byte_data(
client, TMP411_TEMP_HIGHEST_LSB[i]);
}
}
return data;
}
static struct tmp401_data *tmp401_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct tmp401_data *data = i2c_get_clientdata(client);
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
data->status = i2c_smbus_read_byte_data(client, TMP401_STATUS);
data->config = i2c_smbus_read_byte_data(client,
TMP401_CONFIG_READ);
tmp401_update_device_reg16(client, data);
data->temp_crit_hyst = i2c_smbus_read_byte_data(client,
TMP401_TEMP_CRIT_HYST);
data->last_updated = jiffies;
data->valid = 1;
}
mutex_unlock(&data->update_lock);
return data;
}
static int __init tmp401_init(void) static int __init tmp401_init(void)
{ {