diff options
author | Andrea Bastoni <bastoni@cs.unc.edu> | 2010-05-30 19:16:45 -0400 |
---|---|---|
committer | Andrea Bastoni <bastoni@cs.unc.edu> | 2010-05-30 19:16:45 -0400 |
commit | ada47b5fe13d89735805b566185f4885f5a3f750 (patch) | |
tree | 644b88f8a71896307d71438e9b3af49126ffb22b /drivers/hwmon/lm77.c | |
parent | 43e98717ad40a4ae64545b5ba047c7b86aa44f4f (diff) | |
parent | 3280f21d43ee541f97f8cda5792150d2dbec20d5 (diff) |
Merge branch 'wip-2.6.34' into old-private-masterarchived-private-master
Diffstat (limited to 'drivers/hwmon/lm77.c')
-rw-r--r-- | drivers/hwmon/lm77.c | 92 |
1 files changed, 43 insertions, 49 deletions
diff --git a/drivers/hwmon/lm77.c b/drivers/hwmon/lm77.c index 866b401ab6e8..b28a297be50c 100644 --- a/drivers/hwmon/lm77.c +++ b/drivers/hwmon/lm77.c | |||
@@ -39,9 +39,6 @@ | |||
39 | static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, | 39 | static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, |
40 | I2C_CLIENT_END }; | 40 | I2C_CLIENT_END }; |
41 | 41 | ||
42 | /* Insmod parameters */ | ||
43 | I2C_CLIENT_INSMOD_1(lm77); | ||
44 | |||
45 | /* The LM77 registers */ | 42 | /* The LM77 registers */ |
46 | #define LM77_REG_TEMP 0x00 | 43 | #define LM77_REG_TEMP 0x00 |
47 | #define LM77_REG_CONF 0x01 | 44 | #define LM77_REG_CONF 0x01 |
@@ -66,8 +63,7 @@ struct lm77_data { | |||
66 | 63 | ||
67 | static int lm77_probe(struct i2c_client *client, | 64 | static int lm77_probe(struct i2c_client *client, |
68 | const struct i2c_device_id *id); | 65 | const struct i2c_device_id *id); |
69 | static int lm77_detect(struct i2c_client *client, int kind, | 66 | static int lm77_detect(struct i2c_client *client, struct i2c_board_info *info); |
70 | struct i2c_board_info *info); | ||
71 | static void lm77_init_client(struct i2c_client *client); | 67 | static void lm77_init_client(struct i2c_client *client); |
72 | static int lm77_remove(struct i2c_client *client); | 68 | static int lm77_remove(struct i2c_client *client); |
73 | static u16 lm77_read_value(struct i2c_client *client, u8 reg); | 69 | static u16 lm77_read_value(struct i2c_client *client, u8 reg); |
@@ -77,7 +73,7 @@ static struct lm77_data *lm77_update_device(struct device *dev); | |||
77 | 73 | ||
78 | 74 | ||
79 | static const struct i2c_device_id lm77_id[] = { | 75 | static const struct i2c_device_id lm77_id[] = { |
80 | { "lm77", lm77 }, | 76 | { "lm77", 0 }, |
81 | { } | 77 | { } |
82 | }; | 78 | }; |
83 | MODULE_DEVICE_TABLE(i2c, lm77_id); | 79 | MODULE_DEVICE_TABLE(i2c, lm77_id); |
@@ -92,7 +88,7 @@ static struct i2c_driver lm77_driver = { | |||
92 | .remove = lm77_remove, | 88 | .remove = lm77_remove, |
93 | .id_table = lm77_id, | 89 | .id_table = lm77_id, |
94 | .detect = lm77_detect, | 90 | .detect = lm77_detect, |
95 | .address_data = &addr_data, | 91 | .address_list = normal_i2c, |
96 | }; | 92 | }; |
97 | 93 | ||
98 | /* straight from the datasheet */ | 94 | /* straight from the datasheet */ |
@@ -245,10 +241,11 @@ static const struct attribute_group lm77_group = { | |||
245 | }; | 241 | }; |
246 | 242 | ||
247 | /* Return 0 if detection is successful, -ENODEV otherwise */ | 243 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
248 | static int lm77_detect(struct i2c_client *new_client, int kind, | 244 | static int lm77_detect(struct i2c_client *new_client, |
249 | struct i2c_board_info *info) | 245 | struct i2c_board_info *info) |
250 | { | 246 | { |
251 | struct i2c_adapter *adapter = new_client->adapter; | 247 | struct i2c_adapter *adapter = new_client->adapter; |
248 | int i, cur, conf, hyst, crit, min, max; | ||
252 | 249 | ||
253 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | | 250 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | |
254 | I2C_FUNC_SMBUS_WORD_DATA)) | 251 | I2C_FUNC_SMBUS_WORD_DATA)) |
@@ -265,51 +262,48 @@ static int lm77_detect(struct i2c_client *new_client, int kind, | |||
265 | 4. registers cycling over 8-address boundaries | 262 | 4. registers cycling over 8-address boundaries |
266 | 263 | ||
267 | Word-sized registers are high-byte first. */ | 264 | Word-sized registers are high-byte first. */ |
268 | if (kind < 0) { | ||
269 | int i, cur, conf, hyst, crit, min, max; | ||
270 | |||
271 | /* addresses cycling */ | ||
272 | cur = i2c_smbus_read_word_data(new_client, 0); | ||
273 | conf = i2c_smbus_read_byte_data(new_client, 1); | ||
274 | hyst = i2c_smbus_read_word_data(new_client, 2); | ||
275 | crit = i2c_smbus_read_word_data(new_client, 3); | ||
276 | min = i2c_smbus_read_word_data(new_client, 4); | ||
277 | max = i2c_smbus_read_word_data(new_client, 5); | ||
278 | for (i = 8; i <= 0xff; i += 8) | ||
279 | if (i2c_smbus_read_byte_data(new_client, i + 1) != conf | ||
280 | || i2c_smbus_read_word_data(new_client, i + 2) != hyst | ||
281 | || i2c_smbus_read_word_data(new_client, i + 3) != crit | ||
282 | || i2c_smbus_read_word_data(new_client, i + 4) != min | ||
283 | || i2c_smbus_read_word_data(new_client, i + 5) != max) | ||
284 | return -ENODEV; | ||
285 | |||
286 | /* sign bits */ | ||
287 | if (((cur & 0x00f0) != 0xf0 && (cur & 0x00f0) != 0x0) | ||
288 | || ((hyst & 0x00f0) != 0xf0 && (hyst & 0x00f0) != 0x0) | ||
289 | || ((crit & 0x00f0) != 0xf0 && (crit & 0x00f0) != 0x0) | ||
290 | || ((min & 0x00f0) != 0xf0 && (min & 0x00f0) != 0x0) | ||
291 | || ((max & 0x00f0) != 0xf0 && (max & 0x00f0) != 0x0)) | ||
292 | return -ENODEV; | ||
293 | 265 | ||
294 | /* unused bits */ | 266 | /* addresses cycling */ |
295 | if (conf & 0xe0) | 267 | cur = i2c_smbus_read_word_data(new_client, 0); |
268 | conf = i2c_smbus_read_byte_data(new_client, 1); | ||
269 | hyst = i2c_smbus_read_word_data(new_client, 2); | ||
270 | crit = i2c_smbus_read_word_data(new_client, 3); | ||
271 | min = i2c_smbus_read_word_data(new_client, 4); | ||
272 | max = i2c_smbus_read_word_data(new_client, 5); | ||
273 | for (i = 8; i <= 0xff; i += 8) { | ||
274 | if (i2c_smbus_read_byte_data(new_client, i + 1) != conf | ||
275 | || i2c_smbus_read_word_data(new_client, i + 2) != hyst | ||
276 | || i2c_smbus_read_word_data(new_client, i + 3) != crit | ||
277 | || i2c_smbus_read_word_data(new_client, i + 4) != min | ||
278 | || i2c_smbus_read_word_data(new_client, i + 5) != max) | ||
296 | return -ENODEV; | 279 | return -ENODEV; |
280 | } | ||
297 | 281 | ||
298 | /* 0x06 and 0x07 return the last read value */ | 282 | /* sign bits */ |
299 | cur = i2c_smbus_read_word_data(new_client, 0); | 283 | if (((cur & 0x00f0) != 0xf0 && (cur & 0x00f0) != 0x0) |
300 | if (i2c_smbus_read_word_data(new_client, 6) != cur | 284 | || ((hyst & 0x00f0) != 0xf0 && (hyst & 0x00f0) != 0x0) |
301 | || i2c_smbus_read_word_data(new_client, 7) != cur) | 285 | || ((crit & 0x00f0) != 0xf0 && (crit & 0x00f0) != 0x0) |
302 | return -ENODEV; | 286 | || ((min & 0x00f0) != 0xf0 && (min & 0x00f0) != 0x0) |
303 | hyst = i2c_smbus_read_word_data(new_client, 2); | 287 | || ((max & 0x00f0) != 0xf0 && (max & 0x00f0) != 0x0)) |
304 | if (i2c_smbus_read_word_data(new_client, 6) != hyst | 288 | return -ENODEV; |
305 | || i2c_smbus_read_word_data(new_client, 7) != hyst) | ||
306 | return -ENODEV; | ||
307 | min = i2c_smbus_read_word_data(new_client, 4); | ||
308 | if (i2c_smbus_read_word_data(new_client, 6) != min | ||
309 | || i2c_smbus_read_word_data(new_client, 7) != min) | ||
310 | return -ENODEV; | ||
311 | 289 | ||
312 | } | 290 | /* unused bits */ |
291 | if (conf & 0xe0) | ||
292 | return -ENODEV; | ||
293 | |||
294 | /* 0x06 and 0x07 return the last read value */ | ||
295 | cur = i2c_smbus_read_word_data(new_client, 0); | ||
296 | if (i2c_smbus_read_word_data(new_client, 6) != cur | ||
297 | || i2c_smbus_read_word_data(new_client, 7) != cur) | ||
298 | return -ENODEV; | ||
299 | hyst = i2c_smbus_read_word_data(new_client, 2); | ||
300 | if (i2c_smbus_read_word_data(new_client, 6) != hyst | ||
301 | || i2c_smbus_read_word_data(new_client, 7) != hyst) | ||
302 | return -ENODEV; | ||
303 | min = i2c_smbus_read_word_data(new_client, 4); | ||
304 | if (i2c_smbus_read_word_data(new_client, 6) != min | ||
305 | || i2c_smbus_read_word_data(new_client, 7) != min) | ||
306 | return -ENODEV; | ||
313 | 307 | ||
314 | strlcpy(info->type, "lm77", I2C_NAME_SIZE); | 308 | strlcpy(info->type, "lm77", I2C_NAME_SIZE); |
315 | 309 | ||