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74ba9207 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 | 2 | /* |
43da3d12 GR |
3 | * gl520sm.c - Part of lm_sensors, Linux kernel modules for hardware |
4 | * monitoring | |
5 | * Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>, | |
6 | * Kyösti Mälkki <kmalkki@cc.hut.fi> | |
7 | * Copyright (c) 2005 Maarten Deprez <maartendeprez@users.sourceforge.net> | |
43da3d12 | 8 | */ |
1da177e4 LT |
9 | |
10 | #include <linux/module.h> | |
11 | #include <linux/init.h> | |
12 | #include <linux/slab.h> | |
0cacdf29 | 13 | #include <linux/jiffies.h> |
1da177e4 | 14 | #include <linux/i2c.h> |
943b0830 | 15 | #include <linux/hwmon.h> |
86d47f12 | 16 | #include <linux/hwmon-sysfs.h> |
303760b4 | 17 | #include <linux/hwmon-vid.h> |
943b0830 | 18 | #include <linux/err.h> |
9a61bf63 | 19 | #include <linux/mutex.h> |
87808be4 | 20 | #include <linux/sysfs.h> |
1da177e4 LT |
21 | |
22 | /* Type of the extra sensor */ | |
23 | static unsigned short extra_sensor_type; | |
24 | module_param(extra_sensor_type, ushort, 0); | |
25 | MODULE_PARM_DESC(extra_sensor_type, "Type of extra sensor (0=autodetect, 1=temperature, 2=voltage)"); | |
26 | ||
27 | /* Addresses to scan */ | |
25e9c86d | 28 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END }; |
1da177e4 | 29 | |
43da3d12 GR |
30 | /* |
31 | * Many GL520 constants specified below | |
32 | * One of the inputs can be configured as either temp or voltage. | |
33 | * That's why _TEMP2 and _IN4 access the same register | |
34 | */ | |
1da177e4 LT |
35 | |
36 | /* The GL520 registers */ | |
37 | #define GL520_REG_CHIP_ID 0x00 | |
38 | #define GL520_REG_REVISION 0x01 | |
39 | #define GL520_REG_CONF 0x03 | |
40 | #define GL520_REG_MASK 0x11 | |
41 | ||
42 | #define GL520_REG_VID_INPUT 0x02 | |
43 | ||
8b4b0ab4 JD |
44 | static const u8 GL520_REG_IN_INPUT[] = { 0x15, 0x14, 0x13, 0x0d, 0x0e }; |
45 | static const u8 GL520_REG_IN_LIMIT[] = { 0x0c, 0x09, 0x0a, 0x0b }; | |
46 | static const u8 GL520_REG_IN_MIN[] = { 0x0c, 0x09, 0x0a, 0x0b, 0x18 }; | |
47 | static const u8 GL520_REG_IN_MAX[] = { 0x0c, 0x09, 0x0a, 0x0b, 0x17 }; | |
48 | ||
49 | static const u8 GL520_REG_TEMP_INPUT[] = { 0x04, 0x0e }; | |
50 | static const u8 GL520_REG_TEMP_MAX[] = { 0x05, 0x17 }; | |
51 | static const u8 GL520_REG_TEMP_MAX_HYST[] = { 0x06, 0x18 }; | |
1da177e4 LT |
52 | |
53 | #define GL520_REG_FAN_INPUT 0x07 | |
54 | #define GL520_REG_FAN_MIN 0x08 | |
55 | #define GL520_REG_FAN_DIV 0x0f | |
56 | #define GL520_REG_FAN_OFF GL520_REG_FAN_DIV | |
57 | ||
58 | #define GL520_REG_ALARMS 0x12 | |
59 | #define GL520_REG_BEEP_MASK 0x10 | |
60 | #define GL520_REG_BEEP_ENABLE GL520_REG_CONF | |
61 | ||
1da177e4 LT |
62 | /* Client data */ |
63 | struct gl520_data { | |
d1b9c3f5 AL |
64 | struct i2c_client *client; |
65 | const struct attribute_group *groups[3]; | |
9a61bf63 | 66 | struct mutex update_lock; |
1da177e4 LT |
67 | char valid; /* zero until the following fields are valid */ |
68 | unsigned long last_updated; /* in jiffies */ | |
69 | ||
70 | u8 vid; | |
71 | u8 vrm; | |
72 | u8 in_input[5]; /* [0] = VVD */ | |
73 | u8 in_min[5]; /* [0] = VDD */ | |
74 | u8 in_max[5]; /* [0] = VDD */ | |
75 | u8 fan_input[2]; | |
76 | u8 fan_min[2]; | |
77 | u8 fan_div[2]; | |
78 | u8 fan_off; | |
79 | u8 temp_input[2]; | |
80 | u8 temp_max[2]; | |
81 | u8 temp_max_hyst[2]; | |
82 | u8 alarms; | |
83 | u8 beep_enable; | |
84 | u8 beep_mask; | |
85 | u8 alarm_mask; | |
86 | u8 two_temps; | |
87 | }; | |
88 | ||
df51f2d7 AL |
89 | /* |
90 | * Registers 0x07 to 0x0c are word-sized, others are byte-sized | |
91 | * GL520 uses a high-byte first convention | |
92 | */ | |
93 | static int gl520_read_value(struct i2c_client *client, u8 reg) | |
94 | { | |
95 | if ((reg >= 0x07) && (reg <= 0x0c)) | |
96 | return i2c_smbus_read_word_swapped(client, reg); | |
97 | else | |
98 | return i2c_smbus_read_byte_data(client, reg); | |
99 | } | |
100 | ||
101 | static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value) | |
102 | { | |
103 | if ((reg >= 0x07) && (reg <= 0x0c)) | |
104 | return i2c_smbus_write_word_swapped(client, reg, value); | |
105 | else | |
106 | return i2c_smbus_write_byte_data(client, reg, value); | |
107 | } | |
108 | ||
109 | static struct gl520_data *gl520_update_device(struct device *dev) | |
110 | { | |
d1b9c3f5 AL |
111 | struct gl520_data *data = dev_get_drvdata(dev); |
112 | struct i2c_client *client = data->client; | |
df51f2d7 AL |
113 | int val, i; |
114 | ||
115 | mutex_lock(&data->update_lock); | |
116 | ||
117 | if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) { | |
118 | ||
119 | dev_dbg(&client->dev, "Starting gl520sm update\n"); | |
120 | ||
121 | data->alarms = gl520_read_value(client, GL520_REG_ALARMS); | |
122 | data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); | |
123 | data->vid = gl520_read_value(client, | |
124 | GL520_REG_VID_INPUT) & 0x1f; | |
125 | ||
126 | for (i = 0; i < 4; i++) { | |
127 | data->in_input[i] = gl520_read_value(client, | |
128 | GL520_REG_IN_INPUT[i]); | |
129 | val = gl520_read_value(client, GL520_REG_IN_LIMIT[i]); | |
130 | data->in_min[i] = val & 0xff; | |
131 | data->in_max[i] = (val >> 8) & 0xff; | |
132 | } | |
133 | ||
134 | val = gl520_read_value(client, GL520_REG_FAN_INPUT); | |
135 | data->fan_input[0] = (val >> 8) & 0xff; | |
136 | data->fan_input[1] = val & 0xff; | |
137 | ||
138 | val = gl520_read_value(client, GL520_REG_FAN_MIN); | |
139 | data->fan_min[0] = (val >> 8) & 0xff; | |
140 | data->fan_min[1] = val & 0xff; | |
141 | ||
142 | data->temp_input[0] = gl520_read_value(client, | |
143 | GL520_REG_TEMP_INPUT[0]); | |
144 | data->temp_max[0] = gl520_read_value(client, | |
145 | GL520_REG_TEMP_MAX[0]); | |
146 | data->temp_max_hyst[0] = gl520_read_value(client, | |
147 | GL520_REG_TEMP_MAX_HYST[0]); | |
148 | ||
149 | val = gl520_read_value(client, GL520_REG_FAN_DIV); | |
150 | data->fan_div[0] = (val >> 6) & 0x03; | |
151 | data->fan_div[1] = (val >> 4) & 0x03; | |
152 | data->fan_off = (val >> 2) & 0x01; | |
153 | ||
154 | data->alarms &= data->alarm_mask; | |
155 | ||
156 | val = gl520_read_value(client, GL520_REG_CONF); | |
157 | data->beep_enable = !((val >> 2) & 1); | |
158 | ||
159 | /* Temp1 and Vin4 are the same input */ | |
160 | if (data->two_temps) { | |
161 | data->temp_input[1] = gl520_read_value(client, | |
162 | GL520_REG_TEMP_INPUT[1]); | |
163 | data->temp_max[1] = gl520_read_value(client, | |
164 | GL520_REG_TEMP_MAX[1]); | |
165 | data->temp_max_hyst[1] = gl520_read_value(client, | |
166 | GL520_REG_TEMP_MAX_HYST[1]); | |
167 | } else { | |
168 | data->in_input[4] = gl520_read_value(client, | |
169 | GL520_REG_IN_INPUT[4]); | |
170 | data->in_min[4] = gl520_read_value(client, | |
171 | GL520_REG_IN_MIN[4]); | |
172 | data->in_max[4] = gl520_read_value(client, | |
173 | GL520_REG_IN_MAX[4]); | |
174 | } | |
175 | ||
176 | data->last_updated = jiffies; | |
177 | data->valid = 1; | |
178 | } | |
179 | ||
180 | mutex_unlock(&data->update_lock); | |
181 | ||
182 | return data; | |
183 | } | |
184 | ||
1da177e4 LT |
185 | /* |
186 | * Sysfs stuff | |
187 | */ | |
188 | ||
2579b7ff JL |
189 | static ssize_t cpu0_vid_show(struct device *dev, |
190 | struct device_attribute *attr, char *buf) | |
1da177e4 | 191 | { |
86d47f12 | 192 | struct gl520_data *data = gl520_update_device(dev); |
1da177e4 LT |
193 | return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm)); |
194 | } | |
2579b7ff | 195 | static DEVICE_ATTR_RO(cpu0_vid); |
1da177e4 | 196 | |
87cdfa9d GR |
197 | #define VDD_FROM_REG(val) DIV_ROUND_CLOSEST((val) * 95, 4) |
198 | #define VDD_CLAMP(val) clamp_val(val, 0, 255 * 95 / 4) | |
199 | #define VDD_TO_REG(val) DIV_ROUND_CLOSEST(VDD_CLAMP(val) * 4, 95) | |
1da177e4 | 200 | |
87cdfa9d GR |
201 | #define IN_FROM_REG(val) ((val) * 19) |
202 | #define IN_CLAMP(val) clamp_val(val, 0, 255 * 19) | |
203 | #define IN_TO_REG(val) DIV_ROUND_CLOSEST(IN_CLAMP(val), 19) | |
1da177e4 | 204 | |
17de1a88 GR |
205 | static ssize_t in_input_show(struct device *dev, |
206 | struct device_attribute *attr, char *buf) | |
1da177e4 | 207 | { |
86d47f12 JD |
208 | int n = to_sensor_dev_attr(attr)->index; |
209 | struct gl520_data *data = gl520_update_device(dev); | |
1da177e4 LT |
210 | u8 r = data->in_input[n]; |
211 | ||
212 | if (n == 0) | |
213 | return sprintf(buf, "%d\n", VDD_FROM_REG(r)); | |
214 | else | |
215 | return sprintf(buf, "%d\n", IN_FROM_REG(r)); | |
216 | } | |
217 | ||
17de1a88 GR |
218 | static ssize_t in_min_show(struct device *dev, struct device_attribute *attr, |
219 | char *buf) | |
1da177e4 | 220 | { |
86d47f12 JD |
221 | int n = to_sensor_dev_attr(attr)->index; |
222 | struct gl520_data *data = gl520_update_device(dev); | |
1da177e4 LT |
223 | u8 r = data->in_min[n]; |
224 | ||
225 | if (n == 0) | |
226 | return sprintf(buf, "%d\n", VDD_FROM_REG(r)); | |
227 | else | |
228 | return sprintf(buf, "%d\n", IN_FROM_REG(r)); | |
229 | } | |
230 | ||
17de1a88 GR |
231 | static ssize_t in_max_show(struct device *dev, struct device_attribute *attr, |
232 | char *buf) | |
1da177e4 | 233 | { |
86d47f12 JD |
234 | int n = to_sensor_dev_attr(attr)->index; |
235 | struct gl520_data *data = gl520_update_device(dev); | |
1da177e4 LT |
236 | u8 r = data->in_max[n]; |
237 | ||
238 | if (n == 0) | |
239 | return sprintf(buf, "%d\n", VDD_FROM_REG(r)); | |
240 | else | |
241 | return sprintf(buf, "%d\n", IN_FROM_REG(r)); | |
242 | } | |
243 | ||
17de1a88 GR |
244 | static ssize_t in_min_store(struct device *dev, struct device_attribute *attr, |
245 | const char *buf, size_t count) | |
1da177e4 | 246 | { |
d1b9c3f5 AL |
247 | struct gl520_data *data = dev_get_drvdata(dev); |
248 | struct i2c_client *client = data->client; | |
86d47f12 | 249 | int n = to_sensor_dev_attr(attr)->index; |
1da177e4 | 250 | u8 r; |
43da3d12 GR |
251 | long v; |
252 | int err; | |
253 | ||
254 | err = kstrtol(buf, 10, &v); | |
255 | if (err) | |
256 | return err; | |
1da177e4 | 257 | |
9a61bf63 | 258 | mutex_lock(&data->update_lock); |
1da177e4 LT |
259 | |
260 | if (n == 0) | |
261 | r = VDD_TO_REG(v); | |
262 | else | |
263 | r = IN_TO_REG(v); | |
264 | ||
265 | data->in_min[n] = r; | |
266 | ||
267 | if (n < 4) | |
86d47f12 JD |
268 | gl520_write_value(client, GL520_REG_IN_MIN[n], |
269 | (gl520_read_value(client, GL520_REG_IN_MIN[n]) | |
270 | & ~0xff) | r); | |
1da177e4 | 271 | else |
86d47f12 | 272 | gl520_write_value(client, GL520_REG_IN_MIN[n], r); |
1da177e4 | 273 | |
9a61bf63 | 274 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
275 | return count; |
276 | } | |
277 | ||
17de1a88 GR |
278 | static ssize_t in_max_store(struct device *dev, struct device_attribute *attr, |
279 | const char *buf, size_t count) | |
1da177e4 | 280 | { |
d1b9c3f5 AL |
281 | struct gl520_data *data = dev_get_drvdata(dev); |
282 | struct i2c_client *client = data->client; | |
86d47f12 | 283 | int n = to_sensor_dev_attr(attr)->index; |
1da177e4 | 284 | u8 r; |
43da3d12 GR |
285 | long v; |
286 | int err; | |
287 | ||
288 | err = kstrtol(buf, 10, &v); | |
289 | if (err) | |
290 | return err; | |
1da177e4 LT |
291 | |
292 | if (n == 0) | |
293 | r = VDD_TO_REG(v); | |
294 | else | |
295 | r = IN_TO_REG(v); | |
296 | ||
9a61bf63 | 297 | mutex_lock(&data->update_lock); |
1da177e4 LT |
298 | |
299 | data->in_max[n] = r; | |
300 | ||
301 | if (n < 4) | |
86d47f12 JD |
302 | gl520_write_value(client, GL520_REG_IN_MAX[n], |
303 | (gl520_read_value(client, GL520_REG_IN_MAX[n]) | |
304 | & ~0xff00) | (r << 8)); | |
1da177e4 | 305 | else |
86d47f12 | 306 | gl520_write_value(client, GL520_REG_IN_MAX[n], r); |
1da177e4 | 307 | |
9a61bf63 | 308 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
309 | return count; |
310 | } | |
311 | ||
17de1a88 GR |
312 | static SENSOR_DEVICE_ATTR_RO(in0_input, in_input, 0); |
313 | static SENSOR_DEVICE_ATTR_RO(in1_input, in_input, 1); | |
314 | static SENSOR_DEVICE_ATTR_RO(in2_input, in_input, 2); | |
315 | static SENSOR_DEVICE_ATTR_RO(in3_input, in_input, 3); | |
316 | static SENSOR_DEVICE_ATTR_RO(in4_input, in_input, 4); | |
317 | static SENSOR_DEVICE_ATTR_RW(in0_min, in_min, 0); | |
318 | static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1); | |
319 | static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2); | |
320 | static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3); | |
321 | static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4); | |
322 | static SENSOR_DEVICE_ATTR_RW(in0_max, in_max, 0); | |
323 | static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1); | |
324 | static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2); | |
325 | static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3); | |
326 | static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4); | |
86d47f12 | 327 | |
1da177e4 | 328 | #define DIV_FROM_REG(val) (1 << (val)) |
43da3d12 | 329 | #define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : (480000 / ((val) << (div)))) |
87cdfa9d GR |
330 | |
331 | #define FAN_BASE(div) (480000 >> (div)) | |
332 | #define FAN_CLAMP(val, div) clamp_val(val, FAN_BASE(div) / 255, \ | |
333 | FAN_BASE(div)) | |
334 | #define FAN_TO_REG(val, div) ((val) == 0 ? 0 : \ | |
335 | DIV_ROUND_CLOSEST(480000, \ | |
336 | FAN_CLAMP(val, div) << (div))) | |
1da177e4 | 337 | |
17de1a88 GR |
338 | static ssize_t fan_input_show(struct device *dev, |
339 | struct device_attribute *attr, char *buf) | |
1da177e4 | 340 | { |
86d47f12 JD |
341 | int n = to_sensor_dev_attr(attr)->index; |
342 | struct gl520_data *data = gl520_update_device(dev); | |
343 | ||
344 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_input[n], | |
345 | data->fan_div[n])); | |
1da177e4 LT |
346 | } |
347 | ||
17de1a88 GR |
348 | static ssize_t fan_min_show(struct device *dev, struct device_attribute *attr, |
349 | char *buf) | |
1da177e4 | 350 | { |
86d47f12 JD |
351 | int n = to_sensor_dev_attr(attr)->index; |
352 | struct gl520_data *data = gl520_update_device(dev); | |
353 | ||
354 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[n], | |
355 | data->fan_div[n])); | |
1da177e4 LT |
356 | } |
357 | ||
17de1a88 GR |
358 | static ssize_t fan_div_show(struct device *dev, struct device_attribute *attr, |
359 | char *buf) | |
1da177e4 | 360 | { |
86d47f12 JD |
361 | int n = to_sensor_dev_attr(attr)->index; |
362 | struct gl520_data *data = gl520_update_device(dev); | |
363 | ||
364 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[n])); | |
1da177e4 LT |
365 | } |
366 | ||
2579b7ff JL |
367 | static ssize_t fan1_off_show(struct device *dev, |
368 | struct device_attribute *attr, char *buf) | |
1da177e4 | 369 | { |
86d47f12 | 370 | struct gl520_data *data = gl520_update_device(dev); |
1da177e4 LT |
371 | return sprintf(buf, "%d\n", data->fan_off); |
372 | } | |
373 | ||
17de1a88 GR |
374 | static ssize_t fan_min_store(struct device *dev, |
375 | struct device_attribute *attr, const char *buf, | |
376 | size_t count) | |
1da177e4 | 377 | { |
d1b9c3f5 AL |
378 | struct gl520_data *data = dev_get_drvdata(dev); |
379 | struct i2c_client *client = data->client; | |
86d47f12 | 380 | int n = to_sensor_dev_attr(attr)->index; |
1da177e4 | 381 | u8 r; |
43da3d12 GR |
382 | unsigned long v; |
383 | int err; | |
384 | ||
385 | err = kstrtoul(buf, 10, &v); | |
386 | if (err) | |
387 | return err; | |
1da177e4 | 388 | |
9a61bf63 | 389 | mutex_lock(&data->update_lock); |
86d47f12 JD |
390 | r = FAN_TO_REG(v, data->fan_div[n]); |
391 | data->fan_min[n] = r; | |
1da177e4 | 392 | |
86d47f12 JD |
393 | if (n == 0) |
394 | gl520_write_value(client, GL520_REG_FAN_MIN, | |
395 | (gl520_read_value(client, GL520_REG_FAN_MIN) | |
396 | & ~0xff00) | (r << 8)); | |
1da177e4 | 397 | else |
86d47f12 JD |
398 | gl520_write_value(client, GL520_REG_FAN_MIN, |
399 | (gl520_read_value(client, GL520_REG_FAN_MIN) | |
400 | & ~0xff) | r); | |
1da177e4 LT |
401 | |
402 | data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); | |
86d47f12 JD |
403 | if (data->fan_min[n] == 0) |
404 | data->alarm_mask &= (n == 0) ? ~0x20 : ~0x40; | |
1da177e4 | 405 | else |
86d47f12 | 406 | data->alarm_mask |= (n == 0) ? 0x20 : 0x40; |
1da177e4 LT |
407 | data->beep_mask &= data->alarm_mask; |
408 | gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); | |
409 | ||
9a61bf63 | 410 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
411 | return count; |
412 | } | |
413 | ||
17de1a88 GR |
414 | static ssize_t fan_div_store(struct device *dev, |
415 | struct device_attribute *attr, const char *buf, | |
416 | size_t count) | |
1da177e4 | 417 | { |
d1b9c3f5 AL |
418 | struct gl520_data *data = dev_get_drvdata(dev); |
419 | struct i2c_client *client = data->client; | |
86d47f12 | 420 | int n = to_sensor_dev_attr(attr)->index; |
1da177e4 | 421 | u8 r; |
43da3d12 GR |
422 | unsigned long v; |
423 | int err; | |
424 | ||
425 | err = kstrtoul(buf, 10, &v); | |
426 | if (err) | |
427 | return err; | |
1da177e4 LT |
428 | |
429 | switch (v) { | |
43da3d12 GR |
430 | case 1: |
431 | r = 0; | |
432 | break; | |
433 | case 2: | |
434 | r = 1; | |
435 | break; | |
436 | case 4: | |
437 | r = 2; | |
438 | break; | |
439 | case 8: | |
440 | r = 3; | |
441 | break; | |
1da177e4 | 442 | default: |
43da3d12 GR |
443 | dev_err(&client->dev, |
444 | "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8!\n", v); | |
1da177e4 LT |
445 | return -EINVAL; |
446 | } | |
447 | ||
9a61bf63 | 448 | mutex_lock(&data->update_lock); |
86d47f12 | 449 | data->fan_div[n] = r; |
1da177e4 | 450 | |
86d47f12 JD |
451 | if (n == 0) |
452 | gl520_write_value(client, GL520_REG_FAN_DIV, | |
453 | (gl520_read_value(client, GL520_REG_FAN_DIV) | |
454 | & ~0xc0) | (r << 6)); | |
1da177e4 | 455 | else |
86d47f12 JD |
456 | gl520_write_value(client, GL520_REG_FAN_DIV, |
457 | (gl520_read_value(client, GL520_REG_FAN_DIV) | |
458 | & ~0x30) | (r << 4)); | |
1da177e4 | 459 | |
9a61bf63 | 460 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
461 | return count; |
462 | } | |
463 | ||
2579b7ff JL |
464 | static ssize_t fan1_off_store(struct device *dev, |
465 | struct device_attribute *attr, const char *buf, | |
466 | size_t count) | |
1da177e4 | 467 | { |
d1b9c3f5 AL |
468 | struct gl520_data *data = dev_get_drvdata(dev); |
469 | struct i2c_client *client = data->client; | |
43da3d12 GR |
470 | u8 r; |
471 | unsigned long v; | |
472 | int err; | |
473 | ||
474 | err = kstrtoul(buf, 10, &v); | |
475 | if (err) | |
476 | return err; | |
477 | ||
478 | r = (v ? 1 : 0); | |
1da177e4 | 479 | |
9a61bf63 | 480 | mutex_lock(&data->update_lock); |
1da177e4 | 481 | data->fan_off = r; |
86d47f12 JD |
482 | gl520_write_value(client, GL520_REG_FAN_OFF, |
483 | (gl520_read_value(client, GL520_REG_FAN_OFF) | |
484 | & ~0x0c) | (r << 2)); | |
9a61bf63 | 485 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
486 | return count; |
487 | } | |
488 | ||
17de1a88 GR |
489 | static SENSOR_DEVICE_ATTR_RO(fan1_input, fan_input, 0); |
490 | static SENSOR_DEVICE_ATTR_RO(fan2_input, fan_input, 1); | |
491 | static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0); | |
492 | static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1); | |
493 | static SENSOR_DEVICE_ATTR_RW(fan1_div, fan_div, 0); | |
494 | static SENSOR_DEVICE_ATTR_RW(fan2_div, fan_div, 1); | |
2579b7ff | 495 | static DEVICE_ATTR_RW(fan1_off); |
86d47f12 | 496 | |
87cdfa9d GR |
497 | #define TEMP_FROM_REG(val) (((val) - 130) * 1000) |
498 | #define TEMP_CLAMP(val) clamp_val(val, -130000, 125000) | |
499 | #define TEMP_TO_REG(val) (DIV_ROUND_CLOSEST(TEMP_CLAMP(val), 1000) + 130) | |
1da177e4 | 500 | |
17de1a88 GR |
501 | static ssize_t temp_input_show(struct device *dev, |
502 | struct device_attribute *attr, char *buf) | |
1da177e4 | 503 | { |
86d47f12 JD |
504 | int n = to_sensor_dev_attr(attr)->index; |
505 | struct gl520_data *data = gl520_update_device(dev); | |
506 | ||
507 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_input[n])); | |
1da177e4 LT |
508 | } |
509 | ||
17de1a88 GR |
510 | static ssize_t temp_max_show(struct device *dev, |
511 | struct device_attribute *attr, char *buf) | |
1da177e4 | 512 | { |
86d47f12 JD |
513 | int n = to_sensor_dev_attr(attr)->index; |
514 | struct gl520_data *data = gl520_update_device(dev); | |
515 | ||
516 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[n])); | |
1da177e4 LT |
517 | } |
518 | ||
17de1a88 GR |
519 | static ssize_t temp_max_hyst_show(struct device *dev, |
520 | struct device_attribute *attr, char *buf) | |
1da177e4 | 521 | { |
86d47f12 JD |
522 | int n = to_sensor_dev_attr(attr)->index; |
523 | struct gl520_data *data = gl520_update_device(dev); | |
524 | ||
525 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[n])); | |
1da177e4 LT |
526 | } |
527 | ||
17de1a88 GR |
528 | static ssize_t temp_max_store(struct device *dev, |
529 | struct device_attribute *attr, const char *buf, | |
530 | size_t count) | |
1da177e4 | 531 | { |
d1b9c3f5 AL |
532 | struct gl520_data *data = dev_get_drvdata(dev); |
533 | struct i2c_client *client = data->client; | |
86d47f12 | 534 | int n = to_sensor_dev_attr(attr)->index; |
43da3d12 GR |
535 | long v; |
536 | int err; | |
537 | ||
538 | err = kstrtol(buf, 10, &v); | |
539 | if (err) | |
540 | return err; | |
1da177e4 | 541 | |
9a61bf63 | 542 | mutex_lock(&data->update_lock); |
86d47f12 JD |
543 | data->temp_max[n] = TEMP_TO_REG(v); |
544 | gl520_write_value(client, GL520_REG_TEMP_MAX[n], data->temp_max[n]); | |
9a61bf63 | 545 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
546 | return count; |
547 | } | |
548 | ||
17de1a88 GR |
549 | static ssize_t temp_max_hyst_store(struct device *dev, |
550 | struct device_attribute *attr, | |
551 | const char *buf, size_t count) | |
1da177e4 | 552 | { |
d1b9c3f5 AL |
553 | struct gl520_data *data = dev_get_drvdata(dev); |
554 | struct i2c_client *client = data->client; | |
86d47f12 | 555 | int n = to_sensor_dev_attr(attr)->index; |
43da3d12 GR |
556 | long v; |
557 | int err; | |
558 | ||
559 | err = kstrtol(buf, 10, &v); | |
560 | if (err) | |
561 | return err; | |
1da177e4 | 562 | |
9a61bf63 | 563 | mutex_lock(&data->update_lock); |
86d47f12 JD |
564 | data->temp_max_hyst[n] = TEMP_TO_REG(v); |
565 | gl520_write_value(client, GL520_REG_TEMP_MAX_HYST[n], | |
566 | data->temp_max_hyst[n]); | |
9a61bf63 | 567 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
568 | return count; |
569 | } | |
570 | ||
17de1a88 GR |
571 | static SENSOR_DEVICE_ATTR_RO(temp1_input, temp_input, 0); |
572 | static SENSOR_DEVICE_ATTR_RO(temp2_input, temp_input, 1); | |
573 | static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0); | |
574 | static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); | |
575 | static SENSOR_DEVICE_ATTR_RW(temp1_max_hyst, temp_max_hyst, 0); | |
576 | static SENSOR_DEVICE_ATTR_RW(temp2_max_hyst, temp_max_hyst, 1); | |
86d47f12 | 577 | |
2579b7ff JL |
578 | static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, |
579 | char *buf) | |
1da177e4 | 580 | { |
86d47f12 | 581 | struct gl520_data *data = gl520_update_device(dev); |
1da177e4 LT |
582 | return sprintf(buf, "%d\n", data->alarms); |
583 | } | |
584 | ||
2579b7ff JL |
585 | static ssize_t beep_enable_show(struct device *dev, |
586 | struct device_attribute *attr, char *buf) | |
1da177e4 | 587 | { |
86d47f12 | 588 | struct gl520_data *data = gl520_update_device(dev); |
1da177e4 LT |
589 | return sprintf(buf, "%d\n", data->beep_enable); |
590 | } | |
591 | ||
2579b7ff JL |
592 | static ssize_t beep_mask_show(struct device *dev, |
593 | struct device_attribute *attr, char *buf) | |
1da177e4 | 594 | { |
86d47f12 | 595 | struct gl520_data *data = gl520_update_device(dev); |
1da177e4 LT |
596 | return sprintf(buf, "%d\n", data->beep_mask); |
597 | } | |
598 | ||
2579b7ff JL |
599 | static ssize_t beep_enable_store(struct device *dev, |
600 | struct device_attribute *attr, | |
601 | const char *buf, size_t count) | |
1da177e4 | 602 | { |
d1b9c3f5 AL |
603 | struct gl520_data *data = dev_get_drvdata(dev); |
604 | struct i2c_client *client = data->client; | |
43da3d12 GR |
605 | u8 r; |
606 | unsigned long v; | |
607 | int err; | |
608 | ||
609 | err = kstrtoul(buf, 10, &v); | |
610 | if (err) | |
611 | return err; | |
612 | ||
613 | r = (v ? 0 : 1); | |
1da177e4 | 614 | |
9a61bf63 | 615 | mutex_lock(&data->update_lock); |
1da177e4 | 616 | data->beep_enable = !r; |
86d47f12 JD |
617 | gl520_write_value(client, GL520_REG_BEEP_ENABLE, |
618 | (gl520_read_value(client, GL520_REG_BEEP_ENABLE) | |
619 | & ~0x04) | (r << 2)); | |
9a61bf63 | 620 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
621 | return count; |
622 | } | |
623 | ||
2579b7ff JL |
624 | static ssize_t beep_mask_store(struct device *dev, |
625 | struct device_attribute *attr, const char *buf, | |
626 | size_t count) | |
1da177e4 | 627 | { |
d1b9c3f5 AL |
628 | struct gl520_data *data = dev_get_drvdata(dev); |
629 | struct i2c_client *client = data->client; | |
43da3d12 GR |
630 | unsigned long r; |
631 | int err; | |
632 | ||
633 | err = kstrtoul(buf, 10, &r); | |
634 | if (err) | |
635 | return err; | |
f28dc2f7 | 636 | |
9a61bf63 | 637 | mutex_lock(&data->update_lock); |
1da177e4 LT |
638 | r &= data->alarm_mask; |
639 | data->beep_mask = r; | |
86d47f12 | 640 | gl520_write_value(client, GL520_REG_BEEP_MASK, r); |
9a61bf63 | 641 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
642 | return count; |
643 | } | |
644 | ||
2579b7ff JL |
645 | static DEVICE_ATTR_RO(alarms); |
646 | static DEVICE_ATTR_RW(beep_enable); | |
647 | static DEVICE_ATTR_RW(beep_mask); | |
86d47f12 | 648 | |
17de1a88 GR |
649 | static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, |
650 | char *buf) | |
e86a7760 JD |
651 | { |
652 | int bit_nr = to_sensor_dev_attr(attr)->index; | |
653 | struct gl520_data *data = gl520_update_device(dev); | |
654 | ||
655 | return sprintf(buf, "%d\n", (data->alarms >> bit_nr) & 1); | |
656 | } | |
657 | ||
17de1a88 GR |
658 | static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 0); |
659 | static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 1); | |
660 | static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 2); | |
661 | static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 3); | |
662 | static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 4); | |
663 | static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, 5); | |
664 | static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, 6); | |
665 | static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, 7); | |
666 | static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 7); | |
667 | ||
668 | static ssize_t beep_show(struct device *dev, struct device_attribute *attr, | |
669 | char *buf) | |
e86a7760 JD |
670 | { |
671 | int bitnr = to_sensor_dev_attr(attr)->index; | |
672 | struct gl520_data *data = gl520_update_device(dev); | |
673 | ||
674 | return sprintf(buf, "%d\n", (data->beep_mask >> bitnr) & 1); | |
675 | } | |
676 | ||
17de1a88 GR |
677 | static ssize_t beep_store(struct device *dev, struct device_attribute *attr, |
678 | const char *buf, size_t count) | |
e86a7760 | 679 | { |
d1b9c3f5 AL |
680 | struct gl520_data *data = dev_get_drvdata(dev); |
681 | struct i2c_client *client = data->client; | |
e86a7760 JD |
682 | int bitnr = to_sensor_dev_attr(attr)->index; |
683 | unsigned long bit; | |
684 | ||
43da3d12 GR |
685 | int err; |
686 | ||
687 | err = kstrtoul(buf, 10, &bit); | |
688 | if (err) | |
689 | return err; | |
e86a7760 JD |
690 | if (bit & ~1) |
691 | return -EINVAL; | |
692 | ||
693 | mutex_lock(&data->update_lock); | |
694 | data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); | |
695 | if (bit) | |
696 | data->beep_mask |= (1 << bitnr); | |
697 | else | |
698 | data->beep_mask &= ~(1 << bitnr); | |
699 | gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); | |
700 | mutex_unlock(&data->update_lock); | |
701 | return count; | |
702 | } | |
703 | ||
17de1a88 GR |
704 | static SENSOR_DEVICE_ATTR_RW(in0_beep, beep, 0); |
705 | static SENSOR_DEVICE_ATTR_RW(in1_beep, beep, 1); | |
706 | static SENSOR_DEVICE_ATTR_RW(in2_beep, beep, 2); | |
707 | static SENSOR_DEVICE_ATTR_RW(in3_beep, beep, 3); | |
708 | static SENSOR_DEVICE_ATTR_RW(temp1_beep, beep, 4); | |
709 | static SENSOR_DEVICE_ATTR_RW(fan1_beep, beep, 5); | |
710 | static SENSOR_DEVICE_ATTR_RW(fan2_beep, beep, 6); | |
711 | static SENSOR_DEVICE_ATTR_RW(temp2_beep, beep, 7); | |
712 | static SENSOR_DEVICE_ATTR_RW(in4_beep, beep, 7); | |
e86a7760 | 713 | |
87808be4 JD |
714 | static struct attribute *gl520_attributes[] = { |
715 | &dev_attr_cpu0_vid.attr, | |
716 | ||
86d47f12 JD |
717 | &sensor_dev_attr_in0_input.dev_attr.attr, |
718 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
719 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
e86a7760 JD |
720 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
721 | &sensor_dev_attr_in0_beep.dev_attr.attr, | |
86d47f12 JD |
722 | &sensor_dev_attr_in1_input.dev_attr.attr, |
723 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
724 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
e86a7760 JD |
725 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
726 | &sensor_dev_attr_in1_beep.dev_attr.attr, | |
86d47f12 JD |
727 | &sensor_dev_attr_in2_input.dev_attr.attr, |
728 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
729 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
e86a7760 JD |
730 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
731 | &sensor_dev_attr_in2_beep.dev_attr.attr, | |
86d47f12 JD |
732 | &sensor_dev_attr_in3_input.dev_attr.attr, |
733 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
734 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
e86a7760 JD |
735 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
736 | &sensor_dev_attr_in3_beep.dev_attr.attr, | |
86d47f12 JD |
737 | |
738 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
739 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
740 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
e86a7760 JD |
741 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
742 | &sensor_dev_attr_fan1_beep.dev_attr.attr, | |
87808be4 | 743 | &dev_attr_fan1_off.attr, |
86d47f12 JD |
744 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
745 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
746 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
e86a7760 JD |
747 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
748 | &sensor_dev_attr_fan2_beep.dev_attr.attr, | |
87808be4 | 749 | |
86d47f12 JD |
750 | &sensor_dev_attr_temp1_input.dev_attr.attr, |
751 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
752 | &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, | |
e86a7760 JD |
753 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
754 | &sensor_dev_attr_temp1_beep.dev_attr.attr, | |
87808be4 JD |
755 | |
756 | &dev_attr_alarms.attr, | |
757 | &dev_attr_beep_enable.attr, | |
758 | &dev_attr_beep_mask.attr, | |
759 | NULL | |
760 | }; | |
761 | ||
762 | static const struct attribute_group gl520_group = { | |
763 | .attrs = gl520_attributes, | |
764 | }; | |
765 | ||
f445a9af | 766 | static struct attribute *gl520_attributes_in4[] = { |
86d47f12 JD |
767 | &sensor_dev_attr_in4_input.dev_attr.attr, |
768 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
769 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
e86a7760 JD |
770 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
771 | &sensor_dev_attr_in4_beep.dev_attr.attr, | |
f445a9af GR |
772 | NULL |
773 | }; | |
87808be4 | 774 | |
f445a9af | 775 | static struct attribute *gl520_attributes_temp2[] = { |
86d47f12 JD |
776 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
777 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
778 | &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, | |
e86a7760 JD |
779 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
780 | &sensor_dev_attr_temp2_beep.dev_attr.attr, | |
87808be4 JD |
781 | NULL |
782 | }; | |
783 | ||
f445a9af GR |
784 | static const struct attribute_group gl520_group_in4 = { |
785 | .attrs = gl520_attributes_in4, | |
786 | }; | |
787 | ||
788 | static const struct attribute_group gl520_group_temp2 = { | |
789 | .attrs = gl520_attributes_temp2, | |
87808be4 JD |
790 | }; |
791 | ||
1da177e4 LT |
792 | |
793 | /* | |
794 | * Real code | |
795 | */ | |
796 | ||
a23a9fe1 | 797 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 798 | static int gl520_detect(struct i2c_client *client, struct i2c_board_info *info) |
1da177e4 | 799 | { |
a23a9fe1 | 800 | struct i2c_adapter *adapter = client->adapter; |
1da177e4 LT |
801 | |
802 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | | |
803 | I2C_FUNC_SMBUS_WORD_DATA)) | |
a23a9fe1 | 804 | return -ENODEV; |
1da177e4 LT |
805 | |
806 | /* Determine the chip type. */ | |
52df6440 JD |
807 | if ((gl520_read_value(client, GL520_REG_CHIP_ID) != 0x20) || |
808 | ((gl520_read_value(client, GL520_REG_REVISION) & 0x7f) != 0x00) || | |
809 | ((gl520_read_value(client, GL520_REG_CONF) & 0x80) != 0x00)) { | |
810 | dev_dbg(&client->dev, "Unknown chip type, skipping\n"); | |
811 | return -ENODEV; | |
1da177e4 LT |
812 | } |
813 | ||
a23a9fe1 | 814 | strlcpy(info->type, "gl520sm", I2C_NAME_SIZE); |
1da177e4 | 815 | |
a23a9fe1 JD |
816 | return 0; |
817 | } | |
818 | ||
df51f2d7 AL |
819 | /* Called when we have found a new GL520SM. */ |
820 | static void gl520_init_client(struct i2c_client *client) | |
821 | { | |
822 | struct gl520_data *data = i2c_get_clientdata(client); | |
823 | u8 oldconf, conf; | |
824 | ||
825 | conf = oldconf = gl520_read_value(client, GL520_REG_CONF); | |
826 | ||
827 | data->alarm_mask = 0xff; | |
828 | data->vrm = vid_which_vrm(); | |
829 | ||
830 | if (extra_sensor_type == 1) | |
831 | conf &= ~0x10; | |
832 | else if (extra_sensor_type == 2) | |
833 | conf |= 0x10; | |
834 | data->two_temps = !(conf & 0x10); | |
835 | ||
836 | /* If IRQ# is disabled, we can safely force comparator mode */ | |
837 | if (!(conf & 0x20)) | |
838 | conf &= 0xf7; | |
839 | ||
840 | /* Enable monitoring if needed */ | |
841 | conf |= 0x40; | |
842 | ||
843 | if (conf != oldconf) | |
844 | gl520_write_value(client, GL520_REG_CONF, conf); | |
845 | ||
846 | gl520_update_device(&(client->dev)); | |
847 | ||
848 | if (data->fan_min[0] == 0) | |
849 | data->alarm_mask &= ~0x20; | |
850 | if (data->fan_min[1] == 0) | |
851 | data->alarm_mask &= ~0x40; | |
852 | ||
853 | data->beep_mask &= data->alarm_mask; | |
854 | gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); | |
855 | } | |
856 | ||
a23a9fe1 JD |
857 | static int gl520_probe(struct i2c_client *client, |
858 | const struct i2c_device_id *id) | |
859 | { | |
d1b9c3f5 AL |
860 | struct device *dev = &client->dev; |
861 | struct device *hwmon_dev; | |
a23a9fe1 | 862 | struct gl520_data *data; |
a23a9fe1 | 863 | |
d1b9c3f5 | 864 | data = devm_kzalloc(dev, sizeof(struct gl520_data), GFP_KERNEL); |
647ff514 GR |
865 | if (!data) |
866 | return -ENOMEM; | |
a23a9fe1 JD |
867 | |
868 | i2c_set_clientdata(client, data); | |
869 | mutex_init(&data->update_lock); | |
d1b9c3f5 | 870 | data->client = client; |
1da177e4 LT |
871 | |
872 | /* Initialize the GL520SM chip */ | |
f28dc2f7 | 873 | gl520_init_client(client); |
1da177e4 | 874 | |
d1b9c3f5 AL |
875 | /* sysfs hooks */ |
876 | data->groups[0] = &gl520_group; | |
1da177e4 | 877 | |
f445a9af | 878 | if (data->two_temps) |
d1b9c3f5 | 879 | data->groups[1] = &gl520_group_temp2; |
f445a9af | 880 | else |
d1b9c3f5 | 881 | data->groups[1] = &gl520_group_in4; |
1da177e4 | 882 | |
d1b9c3f5 AL |
883 | hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, |
884 | data, data->groups); | |
885 | return PTR_ERR_OR_ZERO(hwmon_dev); | |
1da177e4 LT |
886 | } |
887 | ||
df51f2d7 AL |
888 | static const struct i2c_device_id gl520_id[] = { |
889 | { "gl520sm", 0 }, | |
890 | { } | |
891 | }; | |
892 | MODULE_DEVICE_TABLE(i2c, gl520_id); | |
1da177e4 | 893 | |
df51f2d7 AL |
894 | static struct i2c_driver gl520_driver = { |
895 | .class = I2C_CLASS_HWMON, | |
896 | .driver = { | |
897 | .name = "gl520sm", | |
898 | }, | |
899 | .probe = gl520_probe, | |
df51f2d7 AL |
900 | .id_table = gl520_id, |
901 | .detect = gl520_detect, | |
902 | .address_list = normal_i2c, | |
903 | }; | |
1da177e4 | 904 | |
f0967eea | 905 | module_i2c_driver(gl520_driver); |
1da177e4 LT |
906 | |
907 | MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, " | |
96de0e25 | 908 | "Kyösti Mälkki <kmalkki@cc.hut.fi>, " |
1da177e4 LT |
909 | "Maarten Deprez <maartendeprez@users.sourceforge.net>"); |
910 | MODULE_DESCRIPTION("GL520SM driver"); | |
911 | MODULE_LICENSE("GPL"); |