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0772a640 | 1 | /*************************************************************************** |
312869ec | 2 | * Copyright (C) 2011-2012 Hans de Goede <hdegoede@redhat.com> * |
0772a640 HG |
3 | * * |
4 | * This program is free software; you can redistribute it and/or modify * | |
5 | * it under the terms of the GNU General Public License as published by * | |
6 | * the Free Software Foundation; either version 2 of the License, or * | |
7 | * (at your option) any later version. * | |
8 | * * | |
9 | * This program is distributed in the hope that it will be useful, * | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * | |
12 | * GNU General Public License for more details. * | |
13 | * * | |
14 | * You should have received a copy of the GNU General Public License * | |
15 | * along with this program; if not, write to the * | |
16 | * Free Software Foundation, Inc., * | |
17 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * | |
18 | ***************************************************************************/ | |
19 | ||
20 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/init.h> | |
24 | #include <linux/slab.h> | |
25 | #include <linux/jiffies.h> | |
26 | #include <linux/platform_device.h> | |
27 | #include <linux/hwmon.h> | |
28 | #include <linux/hwmon-sysfs.h> | |
29 | #include <linux/err.h> | |
30 | #include <linux/mutex.h> | |
31 | #include "sch56xx-common.h" | |
32 | ||
33 | #define DRVNAME "sch5636" | |
34 | #define DEVNAME "theseus" /* We only support one model for now */ | |
35 | ||
36 | #define SCH5636_REG_FUJITSU_ID 0x780 | |
37 | #define SCH5636_REG_FUJITSU_REV 0x783 | |
38 | ||
39 | #define SCH5636_NO_INS 5 | |
40 | #define SCH5636_NO_TEMPS 16 | |
41 | #define SCH5636_NO_FANS 8 | |
42 | ||
43 | static const u16 SCH5636_REG_IN_VAL[SCH5636_NO_INS] = { | |
44 | 0x22, 0x23, 0x24, 0x25, 0x189 }; | |
45 | static const u16 SCH5636_REG_IN_FACTORS[SCH5636_NO_INS] = { | |
46 | 4400, 1500, 4000, 4400, 16000 }; | |
47 | static const char * const SCH5636_IN_LABELS[SCH5636_NO_INS] = { | |
48 | "3.3V", "VREF", "VBAT", "3.3AUX", "12V" }; | |
49 | ||
50 | static const u16 SCH5636_REG_TEMP_VAL[SCH5636_NO_TEMPS] = { | |
51 | 0x2B, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x180, 0x181, | |
52 | 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C }; | |
53 | #define SCH5636_REG_TEMP_CTRL(i) (0x790 + (i)) | |
54 | #define SCH5636_TEMP_WORKING 0x01 | |
55 | #define SCH5636_TEMP_ALARM 0x02 | |
56 | #define SCH5636_TEMP_DEACTIVATED 0x80 | |
57 | ||
58 | static const u16 SCH5636_REG_FAN_VAL[SCH5636_NO_FANS] = { | |
59 | 0x2C, 0x2E, 0x30, 0x32, 0x62, 0x64, 0x66, 0x68 }; | |
60 | #define SCH5636_REG_FAN_CTRL(i) (0x880 + (i)) | |
61 | /* FAULT in datasheet, but acts as an alarm */ | |
62 | #define SCH5636_FAN_ALARM 0x04 | |
63 | #define SCH5636_FAN_NOT_PRESENT 0x08 | |
64 | #define SCH5636_FAN_DEACTIVATED 0x80 | |
65 | ||
66 | ||
67 | struct sch5636_data { | |
68 | unsigned short addr; | |
69 | struct device *hwmon_dev; | |
312869ec | 70 | struct sch56xx_watchdog_data *watchdog; |
0772a640 HG |
71 | |
72 | struct mutex update_lock; | |
73 | char valid; /* !=0 if following fields are valid */ | |
74 | unsigned long last_updated; /* In jiffies */ | |
75 | u8 in[SCH5636_NO_INS]; | |
76 | u8 temp_val[SCH5636_NO_TEMPS]; | |
77 | u8 temp_ctrl[SCH5636_NO_TEMPS]; | |
78 | u16 fan_val[SCH5636_NO_FANS]; | |
79 | u8 fan_ctrl[SCH5636_NO_FANS]; | |
80 | }; | |
81 | ||
82 | static struct sch5636_data *sch5636_update_device(struct device *dev) | |
83 | { | |
84 | struct sch5636_data *data = dev_get_drvdata(dev); | |
85 | struct sch5636_data *ret = data; | |
86 | int i, val; | |
87 | ||
88 | mutex_lock(&data->update_lock); | |
89 | ||
90 | /* Cache the values for 1 second */ | |
91 | if (data->valid && !time_after(jiffies, data->last_updated + HZ)) | |
92 | goto abort; | |
93 | ||
94 | for (i = 0; i < SCH5636_NO_INS; i++) { | |
95 | val = sch56xx_read_virtual_reg(data->addr, | |
96 | SCH5636_REG_IN_VAL[i]); | |
97 | if (unlikely(val < 0)) { | |
98 | ret = ERR_PTR(val); | |
99 | goto abort; | |
100 | } | |
101 | data->in[i] = val; | |
102 | } | |
103 | ||
104 | for (i = 0; i < SCH5636_NO_TEMPS; i++) { | |
105 | if (data->temp_ctrl[i] & SCH5636_TEMP_DEACTIVATED) | |
106 | continue; | |
107 | ||
108 | val = sch56xx_read_virtual_reg(data->addr, | |
109 | SCH5636_REG_TEMP_VAL[i]); | |
110 | if (unlikely(val < 0)) { | |
111 | ret = ERR_PTR(val); | |
112 | goto abort; | |
113 | } | |
114 | data->temp_val[i] = val; | |
115 | ||
116 | val = sch56xx_read_virtual_reg(data->addr, | |
117 | SCH5636_REG_TEMP_CTRL(i)); | |
118 | if (unlikely(val < 0)) { | |
119 | ret = ERR_PTR(val); | |
120 | goto abort; | |
121 | } | |
122 | data->temp_ctrl[i] = val; | |
123 | /* Alarms need to be explicitly write-cleared */ | |
124 | if (val & SCH5636_TEMP_ALARM) { | |
125 | sch56xx_write_virtual_reg(data->addr, | |
126 | SCH5636_REG_TEMP_CTRL(i), val); | |
127 | } | |
128 | } | |
129 | ||
130 | for (i = 0; i < SCH5636_NO_FANS; i++) { | |
131 | if (data->fan_ctrl[i] & SCH5636_FAN_DEACTIVATED) | |
132 | continue; | |
133 | ||
134 | val = sch56xx_read_virtual_reg16(data->addr, | |
135 | SCH5636_REG_FAN_VAL[i]); | |
136 | if (unlikely(val < 0)) { | |
137 | ret = ERR_PTR(val); | |
138 | goto abort; | |
139 | } | |
140 | data->fan_val[i] = val; | |
141 | ||
142 | val = sch56xx_read_virtual_reg(data->addr, | |
143 | SCH5636_REG_FAN_CTRL(i)); | |
144 | if (unlikely(val < 0)) { | |
145 | ret = ERR_PTR(val); | |
146 | goto abort; | |
147 | } | |
148 | data->fan_ctrl[i] = val; | |
149 | /* Alarms need to be explicitly write-cleared */ | |
150 | if (val & SCH5636_FAN_ALARM) { | |
151 | sch56xx_write_virtual_reg(data->addr, | |
152 | SCH5636_REG_FAN_CTRL(i), val); | |
153 | } | |
154 | } | |
155 | ||
156 | data->last_updated = jiffies; | |
157 | data->valid = 1; | |
158 | abort: | |
159 | mutex_unlock(&data->update_lock); | |
160 | return ret; | |
161 | } | |
162 | ||
163 | static int reg_to_rpm(u16 reg) | |
164 | { | |
165 | if (reg == 0) | |
166 | return -EIO; | |
167 | if (reg == 0xffff) | |
168 | return 0; | |
169 | ||
170 | return 5400540 / reg; | |
171 | } | |
172 | ||
173 | static ssize_t show_name(struct device *dev, struct device_attribute *devattr, | |
174 | char *buf) | |
175 | { | |
176 | return snprintf(buf, PAGE_SIZE, "%s\n", DEVNAME); | |
177 | } | |
178 | ||
179 | static ssize_t show_in_value(struct device *dev, struct device_attribute | |
180 | *devattr, char *buf) | |
181 | { | |
182 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
183 | struct sch5636_data *data = sch5636_update_device(dev); | |
184 | int val; | |
185 | ||
186 | if (IS_ERR(data)) | |
187 | return PTR_ERR(data); | |
188 | ||
189 | val = DIV_ROUND_CLOSEST( | |
190 | data->in[attr->index] * SCH5636_REG_IN_FACTORS[attr->index], | |
191 | 255); | |
192 | return snprintf(buf, PAGE_SIZE, "%d\n", val); | |
193 | } | |
194 | ||
195 | static ssize_t show_in_label(struct device *dev, struct device_attribute | |
196 | *devattr, char *buf) | |
197 | { | |
198 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
199 | ||
200 | return snprintf(buf, PAGE_SIZE, "%s\n", | |
201 | SCH5636_IN_LABELS[attr->index]); | |
202 | } | |
203 | ||
204 | static ssize_t show_temp_value(struct device *dev, struct device_attribute | |
205 | *devattr, char *buf) | |
206 | { | |
207 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
208 | struct sch5636_data *data = sch5636_update_device(dev); | |
209 | int val; | |
210 | ||
211 | if (IS_ERR(data)) | |
212 | return PTR_ERR(data); | |
213 | ||
214 | val = (data->temp_val[attr->index] - 64) * 1000; | |
215 | return snprintf(buf, PAGE_SIZE, "%d\n", val); | |
216 | } | |
217 | ||
218 | static ssize_t show_temp_fault(struct device *dev, struct device_attribute | |
219 | *devattr, char *buf) | |
220 | { | |
221 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
222 | struct sch5636_data *data = sch5636_update_device(dev); | |
223 | int val; | |
224 | ||
225 | if (IS_ERR(data)) | |
226 | return PTR_ERR(data); | |
227 | ||
228 | val = (data->temp_ctrl[attr->index] & SCH5636_TEMP_WORKING) ? 0 : 1; | |
229 | return snprintf(buf, PAGE_SIZE, "%d\n", val); | |
230 | } | |
231 | ||
232 | static ssize_t show_temp_alarm(struct device *dev, struct device_attribute | |
233 | *devattr, char *buf) | |
234 | { | |
235 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
236 | struct sch5636_data *data = sch5636_update_device(dev); | |
237 | int val; | |
238 | ||
239 | if (IS_ERR(data)) | |
240 | return PTR_ERR(data); | |
241 | ||
242 | val = (data->temp_ctrl[attr->index] & SCH5636_TEMP_ALARM) ? 1 : 0; | |
243 | return snprintf(buf, PAGE_SIZE, "%d\n", val); | |
244 | } | |
245 | ||
246 | static ssize_t show_fan_value(struct device *dev, struct device_attribute | |
247 | *devattr, char *buf) | |
248 | { | |
249 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
250 | struct sch5636_data *data = sch5636_update_device(dev); | |
251 | int val; | |
252 | ||
253 | if (IS_ERR(data)) | |
254 | return PTR_ERR(data); | |
255 | ||
256 | val = reg_to_rpm(data->fan_val[attr->index]); | |
257 | if (val < 0) | |
258 | return val; | |
259 | ||
260 | return snprintf(buf, PAGE_SIZE, "%d\n", val); | |
261 | } | |
262 | ||
263 | static ssize_t show_fan_fault(struct device *dev, struct device_attribute | |
264 | *devattr, char *buf) | |
265 | { | |
266 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
267 | struct sch5636_data *data = sch5636_update_device(dev); | |
268 | int val; | |
269 | ||
270 | if (IS_ERR(data)) | |
271 | return PTR_ERR(data); | |
272 | ||
273 | val = (data->fan_ctrl[attr->index] & SCH5636_FAN_NOT_PRESENT) ? 1 : 0; | |
274 | return snprintf(buf, PAGE_SIZE, "%d\n", val); | |
275 | } | |
276 | ||
277 | static ssize_t show_fan_alarm(struct device *dev, struct device_attribute | |
278 | *devattr, char *buf) | |
279 | { | |
280 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
281 | struct sch5636_data *data = sch5636_update_device(dev); | |
282 | int val; | |
283 | ||
284 | if (IS_ERR(data)) | |
285 | return PTR_ERR(data); | |
286 | ||
287 | val = (data->fan_ctrl[attr->index] & SCH5636_FAN_ALARM) ? 1 : 0; | |
288 | return snprintf(buf, PAGE_SIZE, "%d\n", val); | |
289 | } | |
290 | ||
291 | static struct sensor_device_attribute sch5636_attr[] = { | |
292 | SENSOR_ATTR(name, 0444, show_name, NULL, 0), | |
293 | SENSOR_ATTR(in0_input, 0444, show_in_value, NULL, 0), | |
294 | SENSOR_ATTR(in0_label, 0444, show_in_label, NULL, 0), | |
295 | SENSOR_ATTR(in1_input, 0444, show_in_value, NULL, 1), | |
296 | SENSOR_ATTR(in1_label, 0444, show_in_label, NULL, 1), | |
297 | SENSOR_ATTR(in2_input, 0444, show_in_value, NULL, 2), | |
298 | SENSOR_ATTR(in2_label, 0444, show_in_label, NULL, 2), | |
299 | SENSOR_ATTR(in3_input, 0444, show_in_value, NULL, 3), | |
300 | SENSOR_ATTR(in3_label, 0444, show_in_label, NULL, 3), | |
301 | SENSOR_ATTR(in4_input, 0444, show_in_value, NULL, 4), | |
302 | SENSOR_ATTR(in4_label, 0444, show_in_label, NULL, 4), | |
303 | }; | |
304 | ||
305 | static struct sensor_device_attribute sch5636_temp_attr[] = { | |
306 | SENSOR_ATTR(temp1_input, 0444, show_temp_value, NULL, 0), | |
307 | SENSOR_ATTR(temp1_fault, 0444, show_temp_fault, NULL, 0), | |
308 | SENSOR_ATTR(temp1_alarm, 0444, show_temp_alarm, NULL, 0), | |
309 | SENSOR_ATTR(temp2_input, 0444, show_temp_value, NULL, 1), | |
310 | SENSOR_ATTR(temp2_fault, 0444, show_temp_fault, NULL, 1), | |
311 | SENSOR_ATTR(temp2_alarm, 0444, show_temp_alarm, NULL, 1), | |
312 | SENSOR_ATTR(temp3_input, 0444, show_temp_value, NULL, 2), | |
313 | SENSOR_ATTR(temp3_fault, 0444, show_temp_fault, NULL, 2), | |
314 | SENSOR_ATTR(temp3_alarm, 0444, show_temp_alarm, NULL, 2), | |
315 | SENSOR_ATTR(temp4_input, 0444, show_temp_value, NULL, 3), | |
316 | SENSOR_ATTR(temp4_fault, 0444, show_temp_fault, NULL, 3), | |
317 | SENSOR_ATTR(temp4_alarm, 0444, show_temp_alarm, NULL, 3), | |
318 | SENSOR_ATTR(temp5_input, 0444, show_temp_value, NULL, 4), | |
319 | SENSOR_ATTR(temp5_fault, 0444, show_temp_fault, NULL, 4), | |
320 | SENSOR_ATTR(temp5_alarm, 0444, show_temp_alarm, NULL, 4), | |
321 | SENSOR_ATTR(temp6_input, 0444, show_temp_value, NULL, 5), | |
322 | SENSOR_ATTR(temp6_fault, 0444, show_temp_fault, NULL, 5), | |
323 | SENSOR_ATTR(temp6_alarm, 0444, show_temp_alarm, NULL, 5), | |
324 | SENSOR_ATTR(temp7_input, 0444, show_temp_value, NULL, 6), | |
325 | SENSOR_ATTR(temp7_fault, 0444, show_temp_fault, NULL, 6), | |
326 | SENSOR_ATTR(temp7_alarm, 0444, show_temp_alarm, NULL, 6), | |
327 | SENSOR_ATTR(temp8_input, 0444, show_temp_value, NULL, 7), | |
328 | SENSOR_ATTR(temp8_fault, 0444, show_temp_fault, NULL, 7), | |
329 | SENSOR_ATTR(temp8_alarm, 0444, show_temp_alarm, NULL, 7), | |
330 | SENSOR_ATTR(temp9_input, 0444, show_temp_value, NULL, 8), | |
331 | SENSOR_ATTR(temp9_fault, 0444, show_temp_fault, NULL, 8), | |
332 | SENSOR_ATTR(temp9_alarm, 0444, show_temp_alarm, NULL, 8), | |
333 | SENSOR_ATTR(temp10_input, 0444, show_temp_value, NULL, 9), | |
334 | SENSOR_ATTR(temp10_fault, 0444, show_temp_fault, NULL, 9), | |
335 | SENSOR_ATTR(temp10_alarm, 0444, show_temp_alarm, NULL, 9), | |
336 | SENSOR_ATTR(temp11_input, 0444, show_temp_value, NULL, 10), | |
337 | SENSOR_ATTR(temp11_fault, 0444, show_temp_fault, NULL, 10), | |
338 | SENSOR_ATTR(temp11_alarm, 0444, show_temp_alarm, NULL, 10), | |
339 | SENSOR_ATTR(temp12_input, 0444, show_temp_value, NULL, 11), | |
340 | SENSOR_ATTR(temp12_fault, 0444, show_temp_fault, NULL, 11), | |
341 | SENSOR_ATTR(temp12_alarm, 0444, show_temp_alarm, NULL, 11), | |
342 | SENSOR_ATTR(temp13_input, 0444, show_temp_value, NULL, 12), | |
343 | SENSOR_ATTR(temp13_fault, 0444, show_temp_fault, NULL, 12), | |
344 | SENSOR_ATTR(temp13_alarm, 0444, show_temp_alarm, NULL, 12), | |
345 | SENSOR_ATTR(temp14_input, 0444, show_temp_value, NULL, 13), | |
346 | SENSOR_ATTR(temp14_fault, 0444, show_temp_fault, NULL, 13), | |
347 | SENSOR_ATTR(temp14_alarm, 0444, show_temp_alarm, NULL, 13), | |
348 | SENSOR_ATTR(temp15_input, 0444, show_temp_value, NULL, 14), | |
349 | SENSOR_ATTR(temp15_fault, 0444, show_temp_fault, NULL, 14), | |
350 | SENSOR_ATTR(temp15_alarm, 0444, show_temp_alarm, NULL, 14), | |
351 | SENSOR_ATTR(temp16_input, 0444, show_temp_value, NULL, 15), | |
352 | SENSOR_ATTR(temp16_fault, 0444, show_temp_fault, NULL, 15), | |
353 | SENSOR_ATTR(temp16_alarm, 0444, show_temp_alarm, NULL, 15), | |
354 | }; | |
355 | ||
356 | static struct sensor_device_attribute sch5636_fan_attr[] = { | |
357 | SENSOR_ATTR(fan1_input, 0444, show_fan_value, NULL, 0), | |
358 | SENSOR_ATTR(fan1_fault, 0444, show_fan_fault, NULL, 0), | |
359 | SENSOR_ATTR(fan1_alarm, 0444, show_fan_alarm, NULL, 0), | |
360 | SENSOR_ATTR(fan2_input, 0444, show_fan_value, NULL, 1), | |
361 | SENSOR_ATTR(fan2_fault, 0444, show_fan_fault, NULL, 1), | |
362 | SENSOR_ATTR(fan2_alarm, 0444, show_fan_alarm, NULL, 1), | |
363 | SENSOR_ATTR(fan3_input, 0444, show_fan_value, NULL, 2), | |
364 | SENSOR_ATTR(fan3_fault, 0444, show_fan_fault, NULL, 2), | |
365 | SENSOR_ATTR(fan3_alarm, 0444, show_fan_alarm, NULL, 2), | |
366 | SENSOR_ATTR(fan4_input, 0444, show_fan_value, NULL, 3), | |
367 | SENSOR_ATTR(fan4_fault, 0444, show_fan_fault, NULL, 3), | |
368 | SENSOR_ATTR(fan4_alarm, 0444, show_fan_alarm, NULL, 3), | |
369 | SENSOR_ATTR(fan5_input, 0444, show_fan_value, NULL, 4), | |
370 | SENSOR_ATTR(fan5_fault, 0444, show_fan_fault, NULL, 4), | |
371 | SENSOR_ATTR(fan5_alarm, 0444, show_fan_alarm, NULL, 4), | |
372 | SENSOR_ATTR(fan6_input, 0444, show_fan_value, NULL, 5), | |
373 | SENSOR_ATTR(fan6_fault, 0444, show_fan_fault, NULL, 5), | |
374 | SENSOR_ATTR(fan6_alarm, 0444, show_fan_alarm, NULL, 5), | |
375 | SENSOR_ATTR(fan7_input, 0444, show_fan_value, NULL, 6), | |
376 | SENSOR_ATTR(fan7_fault, 0444, show_fan_fault, NULL, 6), | |
377 | SENSOR_ATTR(fan7_alarm, 0444, show_fan_alarm, NULL, 6), | |
378 | SENSOR_ATTR(fan8_input, 0444, show_fan_value, NULL, 7), | |
379 | SENSOR_ATTR(fan8_fault, 0444, show_fan_fault, NULL, 7), | |
380 | SENSOR_ATTR(fan8_alarm, 0444, show_fan_alarm, NULL, 7), | |
381 | }; | |
382 | ||
383 | static int sch5636_remove(struct platform_device *pdev) | |
384 | { | |
385 | struct sch5636_data *data = platform_get_drvdata(pdev); | |
386 | int i; | |
387 | ||
312869ec HG |
388 | if (data->watchdog) |
389 | sch56xx_watchdog_unregister(data->watchdog); | |
390 | ||
0772a640 HG |
391 | if (data->hwmon_dev) |
392 | hwmon_device_unregister(data->hwmon_dev); | |
393 | ||
394 | for (i = 0; i < ARRAY_SIZE(sch5636_attr); i++) | |
395 | device_remove_file(&pdev->dev, &sch5636_attr[i].dev_attr); | |
396 | ||
397 | for (i = 0; i < SCH5636_NO_TEMPS * 3; i++) | |
398 | device_remove_file(&pdev->dev, | |
399 | &sch5636_temp_attr[i].dev_attr); | |
400 | ||
401 | for (i = 0; i < SCH5636_NO_FANS * 3; i++) | |
402 | device_remove_file(&pdev->dev, | |
403 | &sch5636_fan_attr[i].dev_attr); | |
404 | ||
0772a640 HG |
405 | return 0; |
406 | } | |
407 | ||
6c931ae1 | 408 | static int sch5636_probe(struct platform_device *pdev) |
0772a640 HG |
409 | { |
410 | struct sch5636_data *data; | |
411 | int i, err, val, revision[2]; | |
412 | char id[4]; | |
413 | ||
9220f1e4 GR |
414 | data = devm_kzalloc(&pdev->dev, sizeof(struct sch5636_data), |
415 | GFP_KERNEL); | |
0772a640 HG |
416 | if (!data) |
417 | return -ENOMEM; | |
418 | ||
419 | data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start; | |
420 | mutex_init(&data->update_lock); | |
421 | platform_set_drvdata(pdev, data); | |
422 | ||
423 | for (i = 0; i < 3; i++) { | |
424 | val = sch56xx_read_virtual_reg(data->addr, | |
425 | SCH5636_REG_FUJITSU_ID + i); | |
426 | if (val < 0) { | |
427 | pr_err("Could not read Fujitsu id byte at %#x\n", | |
428 | SCH5636_REG_FUJITSU_ID + i); | |
429 | err = val; | |
430 | goto error; | |
431 | } | |
432 | id[i] = val; | |
433 | } | |
434 | id[i] = '\0'; | |
435 | ||
436 | if (strcmp(id, "THS")) { | |
437 | pr_err("Unknown Fujitsu id: %02x%02x%02x\n", | |
438 | id[0], id[1], id[2]); | |
439 | err = -ENODEV; | |
440 | goto error; | |
441 | } | |
442 | ||
443 | for (i = 0; i < 2; i++) { | |
444 | val = sch56xx_read_virtual_reg(data->addr, | |
445 | SCH5636_REG_FUJITSU_REV + i); | |
446 | if (val < 0) { | |
447 | err = val; | |
448 | goto error; | |
449 | } | |
450 | revision[i] = val; | |
451 | } | |
d6a442df | 452 | pr_info("Found %s chip at %#hx, revision: %d.%02d\n", DEVNAME, |
0772a640 HG |
453 | data->addr, revision[0], revision[1]); |
454 | ||
455 | /* Read all temp + fan ctrl registers to determine which are active */ | |
456 | for (i = 0; i < SCH5636_NO_TEMPS; i++) { | |
457 | val = sch56xx_read_virtual_reg(data->addr, | |
458 | SCH5636_REG_TEMP_CTRL(i)); | |
459 | if (unlikely(val < 0)) { | |
460 | err = val; | |
461 | goto error; | |
462 | } | |
463 | data->temp_ctrl[i] = val; | |
464 | } | |
465 | ||
466 | for (i = 0; i < SCH5636_NO_FANS; i++) { | |
467 | val = sch56xx_read_virtual_reg(data->addr, | |
468 | SCH5636_REG_FAN_CTRL(i)); | |
469 | if (unlikely(val < 0)) { | |
470 | err = val; | |
471 | goto error; | |
472 | } | |
473 | data->fan_ctrl[i] = val; | |
474 | } | |
475 | ||
476 | for (i = 0; i < ARRAY_SIZE(sch5636_attr); i++) { | |
477 | err = device_create_file(&pdev->dev, | |
478 | &sch5636_attr[i].dev_attr); | |
479 | if (err) | |
480 | goto error; | |
481 | } | |
482 | ||
483 | for (i = 0; i < (SCH5636_NO_TEMPS * 3); i++) { | |
484 | if (data->temp_ctrl[i/3] & SCH5636_TEMP_DEACTIVATED) | |
485 | continue; | |
486 | ||
487 | err = device_create_file(&pdev->dev, | |
488 | &sch5636_temp_attr[i].dev_attr); | |
489 | if (err) | |
490 | goto error; | |
491 | } | |
492 | ||
493 | for (i = 0; i < (SCH5636_NO_FANS * 3); i++) { | |
494 | if (data->fan_ctrl[i/3] & SCH5636_FAN_DEACTIVATED) | |
495 | continue; | |
496 | ||
497 | err = device_create_file(&pdev->dev, | |
498 | &sch5636_fan_attr[i].dev_attr); | |
499 | if (err) | |
500 | goto error; | |
501 | } | |
502 | ||
503 | data->hwmon_dev = hwmon_device_register(&pdev->dev); | |
504 | if (IS_ERR(data->hwmon_dev)) { | |
505 | err = PTR_ERR(data->hwmon_dev); | |
506 | data->hwmon_dev = NULL; | |
507 | goto error; | |
508 | } | |
509 | ||
312869ec | 510 | /* Note failing to register the watchdog is not a fatal error */ |
fb551405 | 511 | data->watchdog = sch56xx_watchdog_register(&pdev->dev, data->addr, |
312869ec HG |
512 | (revision[0] << 8) | revision[1], |
513 | &data->update_lock, 0); | |
514 | ||
0772a640 HG |
515 | return 0; |
516 | ||
517 | error: | |
518 | sch5636_remove(pdev); | |
519 | return err; | |
520 | } | |
521 | ||
522 | static struct platform_driver sch5636_driver = { | |
523 | .driver = { | |
0772a640 HG |
524 | .name = DRVNAME, |
525 | }, | |
526 | .probe = sch5636_probe, | |
527 | .remove = sch5636_remove, | |
528 | }; | |
529 | ||
25a236a5 | 530 | module_platform_driver(sch5636_driver); |
0772a640 HG |
531 | |
532 | MODULE_DESCRIPTION("SMSC SCH5636 Hardware Monitoring Driver"); | |
533 | MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>"); | |
534 | MODULE_LICENSE("GPL"); |