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authorGuenter Roeck <linux@roeck-us.net>2014-04-12 13:14:33 -0400
committerGuenter Roeck <linux@roeck-us.net>2014-05-21 19:02:25 -0400
commit40089a9fe265cae0669e84c5ee6fafa59949c215 (patch)
treeda44ba7eb7695729aca47a060e08671e5b84b608 /drivers/hwmon
parentb09489ecce58d4ac9362124a5a5590cb92c58c49 (diff)
hwmon: (max1619) Rearrange code to avoid forward declarations
Forward declarations are unnecessary and easy to avoid, so rearrange code and drop them. No functional change. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/max1619.c158
1 files changed, 69 insertions, 89 deletions
diff --git a/drivers/hwmon/max1619.c b/drivers/hwmon/max1619.c
index 9a8d7ca9b389..c8a729734df5 100644
--- a/drivers/hwmon/max1619.c
+++ b/drivers/hwmon/max1619.c
@@ -72,40 +72,6 @@ static int temp_to_reg(int val)
72} 72}
73 73
74/* 74/*
75 * Functions declaration
76 */
77
78static int max1619_probe(struct i2c_client *client,
79 const struct i2c_device_id *id);
80static int max1619_detect(struct i2c_client *client,
81 struct i2c_board_info *info);
82static void max1619_init_client(struct i2c_client *client);
83static int max1619_remove(struct i2c_client *client);
84static struct max1619_data *max1619_update_device(struct device *dev);
85
86/*
87 * Driver data (common to all clients)
88 */
89
90static const struct i2c_device_id max1619_id[] = {
91 { "max1619", 0 },
92 { }
93};
94MODULE_DEVICE_TABLE(i2c, max1619_id);
95
96static struct i2c_driver max1619_driver = {
97 .class = I2C_CLASS_HWMON,
98 .driver = {
99 .name = "max1619",
100 },
101 .probe = max1619_probe,
102 .remove = max1619_remove,
103 .id_table = max1619_id,
104 .detect = max1619_detect,
105 .address_list = normal_i2c,
106};
107
108/*
109 * Client data (each client gets its own) 75 * Client data (each client gets its own)
110 */ 76 */
111 77
@@ -123,6 +89,44 @@ struct max1619_data {
123 u8 alarms; 89 u8 alarms;
124}; 90};
125 91
92static struct max1619_data *max1619_update_device(struct device *dev)
93{
94 struct i2c_client *client = to_i2c_client(dev);
95 struct max1619_data *data = i2c_get_clientdata(client);
96 int config;
97
98 mutex_lock(&data->update_lock);
99
100 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
101 dev_dbg(&client->dev, "Updating max1619 data.\n");
102 data->temp_input1 = i2c_smbus_read_byte_data(client,
103 MAX1619_REG_R_LOCAL_TEMP);
104 data->temp_input2 = i2c_smbus_read_byte_data(client,
105 MAX1619_REG_R_REMOTE_TEMP);
106 data->temp_high2 = i2c_smbus_read_byte_data(client,
107 MAX1619_REG_R_REMOTE_HIGH);
108 data->temp_low2 = i2c_smbus_read_byte_data(client,
109 MAX1619_REG_R_REMOTE_LOW);
110 data->temp_crit2 = i2c_smbus_read_byte_data(client,
111 MAX1619_REG_R_REMOTE_CRIT);
112 data->temp_hyst2 = i2c_smbus_read_byte_data(client,
113 MAX1619_REG_R_TCRIT_HYST);
114 data->alarms = i2c_smbus_read_byte_data(client,
115 MAX1619_REG_R_STATUS);
116 /* If OVERT polarity is low, reverse alarm bit */
117 config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG);
118 if (!(config & 0x20))
119 data->alarms ^= 0x02;
120
121 data->last_updated = jiffies;
122 data->valid = 1;
123 }
124
125 mutex_unlock(&data->update_lock);
126
127 return data;
128}
129
126/* 130/*
127 * Sysfs stuff 131 * Sysfs stuff
128 */ 132 */
@@ -216,10 +220,6 @@ static const struct attribute_group max1619_group = {
216 .attrs = max1619_attributes, 220 .attrs = max1619_attributes,
217}; 221};
218 222
219/*
220 * Real code
221 */
222
223/* Return 0 if detection is successful, -ENODEV otherwise */ 223/* Return 0 if detection is successful, -ENODEV otherwise */
224static int max1619_detect(struct i2c_client *client, 224static int max1619_detect(struct i2c_client *client,
225 struct i2c_board_info *info) 225 struct i2c_board_info *info)
@@ -256,6 +256,21 @@ static int max1619_detect(struct i2c_client *client,
256 return 0; 256 return 0;
257} 257}
258 258
259static void max1619_init_client(struct i2c_client *client)
260{
261 u8 config;
262
263 /*
264 * Start the conversions.
265 */
266 i2c_smbus_write_byte_data(client, MAX1619_REG_W_CONVRATE,
267 5); /* 2 Hz */
268 config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG);
269 if (config & 0x40)
270 i2c_smbus_write_byte_data(client, MAX1619_REG_W_CONFIG,
271 config & 0xBF); /* run */
272}
273
259static int max1619_probe(struct i2c_client *new_client, 274static int max1619_probe(struct i2c_client *new_client,
260 const struct i2c_device_id *id) 275 const struct i2c_device_id *id)
261{ 276{
@@ -291,21 +306,6 @@ exit_remove_files:
291 return err; 306 return err;
292} 307}
293 308
294static void max1619_init_client(struct i2c_client *client)
295{
296 u8 config;
297
298 /*
299 * Start the conversions.
300 */
301 i2c_smbus_write_byte_data(client, MAX1619_REG_W_CONVRATE,
302 5); /* 2 Hz */
303 config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG);
304 if (config & 0x40)
305 i2c_smbus_write_byte_data(client, MAX1619_REG_W_CONFIG,
306 config & 0xBF); /* run */
307}
308
309static int max1619_remove(struct i2c_client *client) 309static int max1619_remove(struct i2c_client *client)
310{ 310{
311 struct max1619_data *data = i2c_get_clientdata(client); 311 struct max1619_data *data = i2c_get_clientdata(client);
@@ -316,43 +316,23 @@ static int max1619_remove(struct i2c_client *client)
316 return 0; 316 return 0;
317} 317}
318 318
319static struct max1619_data *max1619_update_device(struct device *dev) 319static const struct i2c_device_id max1619_id[] = {
320{ 320 { "max1619", 0 },
321 struct i2c_client *client = to_i2c_client(dev); 321 { }
322 struct max1619_data *data = i2c_get_clientdata(client); 322};
323 int config; 323MODULE_DEVICE_TABLE(i2c, max1619_id);
324
325 mutex_lock(&data->update_lock);
326
327 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
328 dev_dbg(&client->dev, "Updating max1619 data.\n");
329 data->temp_input1 = i2c_smbus_read_byte_data(client,
330 MAX1619_REG_R_LOCAL_TEMP);
331 data->temp_input2 = i2c_smbus_read_byte_data(client,
332 MAX1619_REG_R_REMOTE_TEMP);
333 data->temp_high2 = i2c_smbus_read_byte_data(client,
334 MAX1619_REG_R_REMOTE_HIGH);
335 data->temp_low2 = i2c_smbus_read_byte_data(client,
336 MAX1619_REG_R_REMOTE_LOW);
337 data->temp_crit2 = i2c_smbus_read_byte_data(client,
338 MAX1619_REG_R_REMOTE_CRIT);
339 data->temp_hyst2 = i2c_smbus_read_byte_data(client,
340 MAX1619_REG_R_TCRIT_HYST);
341 data->alarms = i2c_smbus_read_byte_data(client,
342 MAX1619_REG_R_STATUS);
343 /* If OVERT polarity is low, reverse alarm bit */
344 config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG);
345 if (!(config & 0x20))
346 data->alarms ^= 0x02;
347
348 data->last_updated = jiffies;
349 data->valid = 1;
350 }
351
352 mutex_unlock(&data->update_lock);
353 324
354 return data; 325static struct i2c_driver max1619_driver = {
355} 326 .class = I2C_CLASS_HWMON,
327 .driver = {
328 .name = "max1619",
329 },
330 .probe = max1619_probe,
331 .remove = max1619_remove,
332 .id_table = max1619_id,
333 .detect = max1619_detect,
334 .address_list = normal_i2c,
335};
356 336
357module_i2c_driver(max1619_driver); 337module_i2c_driver(max1619_driver);
358 338