1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /*************************************************************************** |
3 | * Copyright (C) 2011-2012 Hans de Goede <hdegoede@redhat.com> * |
4 | * * |
5 | ***************************************************************************/ |
6 | |
7 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
8 | |
9 | #include <linux/module.h> |
10 | #include <linux/mod_devicetable.h> |
11 | #include <linux/init.h> |
12 | #include <linux/slab.h> |
13 | #include <linux/jiffies.h> |
14 | #include <linux/platform_device.h> |
15 | #include <linux/hwmon.h> |
16 | #include <linux/hwmon-sysfs.h> |
17 | #include <linux/err.h> |
18 | #include <linux/mutex.h> |
19 | #include "sch56xx-common.h" |
20 | |
21 | #define DRVNAME "sch5636" |
22 | #define DEVNAME "theseus" /* We only support one model for now */ |
23 | |
24 | #define SCH5636_REG_FUJITSU_ID 0x780 |
25 | #define SCH5636_REG_FUJITSU_REV 0x783 |
26 | |
27 | #define SCH5636_NO_INS 5 |
28 | #define SCH5636_NO_TEMPS 16 |
29 | #define SCH5636_NO_FANS 8 |
30 | |
31 | static const u16 SCH5636_REG_IN_VAL[SCH5636_NO_INS] = { |
32 | 0x22, 0x23, 0x24, 0x25, 0x189 }; |
33 | static const u16 SCH5636_REG_IN_FACTORS[SCH5636_NO_INS] = { |
34 | 4400, 1500, 4000, 4400, 16000 }; |
35 | static const char * const SCH5636_IN_LABELS[SCH5636_NO_INS] = { |
36 | "3.3V" , "VREF" , "VBAT" , "3.3AUX" , "12V" }; |
37 | |
38 | static const u16 SCH5636_REG_TEMP_VAL[SCH5636_NO_TEMPS] = { |
39 | 0x2B, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x180, 0x181, |
40 | 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C }; |
41 | #define SCH5636_REG_TEMP_CTRL(i) (0x790 + (i)) |
42 | #define SCH5636_TEMP_WORKING 0x01 |
43 | #define SCH5636_TEMP_ALARM 0x02 |
44 | #define SCH5636_TEMP_DEACTIVATED 0x80 |
45 | |
46 | static const u16 SCH5636_REG_FAN_VAL[SCH5636_NO_FANS] = { |
47 | 0x2C, 0x2E, 0x30, 0x32, 0x62, 0x64, 0x66, 0x68 }; |
48 | #define SCH5636_REG_FAN_CTRL(i) (0x880 + (i)) |
49 | /* FAULT in datasheet, but acts as an alarm */ |
50 | #define SCH5636_FAN_ALARM 0x04 |
51 | #define SCH5636_FAN_NOT_PRESENT 0x08 |
52 | #define SCH5636_FAN_DEACTIVATED 0x80 |
53 | |
54 | |
55 | struct sch5636_data { |
56 | unsigned short addr; |
57 | struct device *hwmon_dev; |
58 | |
59 | struct mutex update_lock; |
60 | bool valid; /* true if following fields are valid */ |
61 | unsigned long last_updated; /* In jiffies */ |
62 | u8 in[SCH5636_NO_INS]; |
63 | u8 temp_val[SCH5636_NO_TEMPS]; |
64 | u8 temp_ctrl[SCH5636_NO_TEMPS]; |
65 | u16 fan_val[SCH5636_NO_FANS]; |
66 | u8 fan_ctrl[SCH5636_NO_FANS]; |
67 | }; |
68 | |
69 | static struct sch5636_data *sch5636_update_device(struct device *dev) |
70 | { |
71 | struct sch5636_data *data = dev_get_drvdata(dev); |
72 | struct sch5636_data *ret = data; |
73 | int i, val; |
74 | |
75 | mutex_lock(&data->update_lock); |
76 | |
77 | /* Cache the values for 1 second */ |
78 | if (data->valid && !time_after(jiffies, data->last_updated + HZ)) |
79 | goto abort; |
80 | |
81 | for (i = 0; i < SCH5636_NO_INS; i++) { |
82 | val = sch56xx_read_virtual_reg(addr: data->addr, |
83 | reg: SCH5636_REG_IN_VAL[i]); |
84 | if (unlikely(val < 0)) { |
85 | ret = ERR_PTR(error: val); |
86 | goto abort; |
87 | } |
88 | data->in[i] = val; |
89 | } |
90 | |
91 | for (i = 0; i < SCH5636_NO_TEMPS; i++) { |
92 | if (data->temp_ctrl[i] & SCH5636_TEMP_DEACTIVATED) |
93 | continue; |
94 | |
95 | val = sch56xx_read_virtual_reg(addr: data->addr, |
96 | reg: SCH5636_REG_TEMP_VAL[i]); |
97 | if (unlikely(val < 0)) { |
98 | ret = ERR_PTR(error: val); |
99 | goto abort; |
100 | } |
101 | data->temp_val[i] = val; |
102 | |
103 | val = sch56xx_read_virtual_reg(addr: data->addr, |
104 | SCH5636_REG_TEMP_CTRL(i)); |
105 | if (unlikely(val < 0)) { |
106 | ret = ERR_PTR(error: val); |
107 | goto abort; |
108 | } |
109 | data->temp_ctrl[i] = val; |
110 | /* Alarms need to be explicitly write-cleared */ |
111 | if (val & SCH5636_TEMP_ALARM) { |
112 | sch56xx_write_virtual_reg(addr: data->addr, |
113 | SCH5636_REG_TEMP_CTRL(i), val); |
114 | } |
115 | } |
116 | |
117 | for (i = 0; i < SCH5636_NO_FANS; i++) { |
118 | if (data->fan_ctrl[i] & SCH5636_FAN_DEACTIVATED) |
119 | continue; |
120 | |
121 | val = sch56xx_read_virtual_reg16(addr: data->addr, |
122 | reg: SCH5636_REG_FAN_VAL[i]); |
123 | if (unlikely(val < 0)) { |
124 | ret = ERR_PTR(error: val); |
125 | goto abort; |
126 | } |
127 | data->fan_val[i] = val; |
128 | |
129 | val = sch56xx_read_virtual_reg(addr: data->addr, |
130 | SCH5636_REG_FAN_CTRL(i)); |
131 | if (unlikely(val < 0)) { |
132 | ret = ERR_PTR(error: val); |
133 | goto abort; |
134 | } |
135 | data->fan_ctrl[i] = val; |
136 | /* Alarms need to be explicitly write-cleared */ |
137 | if (val & SCH5636_FAN_ALARM) { |
138 | sch56xx_write_virtual_reg(addr: data->addr, |
139 | SCH5636_REG_FAN_CTRL(i), val); |
140 | } |
141 | } |
142 | |
143 | data->last_updated = jiffies; |
144 | data->valid = true; |
145 | abort: |
146 | mutex_unlock(lock: &data->update_lock); |
147 | return ret; |
148 | } |
149 | |
150 | static int reg_to_rpm(u16 reg) |
151 | { |
152 | if (reg == 0) |
153 | return -EIO; |
154 | if (reg == 0xffff) |
155 | return 0; |
156 | |
157 | return 5400540 / reg; |
158 | } |
159 | |
160 | static ssize_t name_show(struct device *dev, struct device_attribute *devattr, |
161 | char *buf) |
162 | { |
163 | return sysfs_emit(buf, fmt: "%s\n" , DEVNAME); |
164 | } |
165 | |
166 | static ssize_t in_value_show(struct device *dev, |
167 | struct device_attribute *devattr, char *buf) |
168 | { |
169 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
170 | struct sch5636_data *data = sch5636_update_device(dev); |
171 | int val; |
172 | |
173 | if (IS_ERR(ptr: data)) |
174 | return PTR_ERR(ptr: data); |
175 | |
176 | val = DIV_ROUND_CLOSEST( |
177 | data->in[attr->index] * SCH5636_REG_IN_FACTORS[attr->index], |
178 | 255); |
179 | return sysfs_emit(buf, fmt: "%d\n" , val); |
180 | } |
181 | |
182 | static ssize_t in_label_show(struct device *dev, |
183 | struct device_attribute *devattr, char *buf) |
184 | { |
185 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
186 | |
187 | return sysfs_emit(buf, fmt: "%s\n" , |
188 | SCH5636_IN_LABELS[attr->index]); |
189 | } |
190 | |
191 | static ssize_t temp_value_show(struct device *dev, |
192 | struct device_attribute *devattr, char *buf) |
193 | { |
194 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
195 | struct sch5636_data *data = sch5636_update_device(dev); |
196 | int val; |
197 | |
198 | if (IS_ERR(ptr: data)) |
199 | return PTR_ERR(ptr: data); |
200 | |
201 | val = (data->temp_val[attr->index] - 64) * 1000; |
202 | return sysfs_emit(buf, fmt: "%d\n" , val); |
203 | } |
204 | |
205 | static ssize_t temp_fault_show(struct device *dev, |
206 | struct device_attribute *devattr, char *buf) |
207 | { |
208 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
209 | struct sch5636_data *data = sch5636_update_device(dev); |
210 | int val; |
211 | |
212 | if (IS_ERR(ptr: data)) |
213 | return PTR_ERR(ptr: data); |
214 | |
215 | val = (data->temp_ctrl[attr->index] & SCH5636_TEMP_WORKING) ? 0 : 1; |
216 | return sysfs_emit(buf, fmt: "%d\n" , val); |
217 | } |
218 | |
219 | static ssize_t temp_alarm_show(struct device *dev, |
220 | struct device_attribute *devattr, char *buf) |
221 | { |
222 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
223 | struct sch5636_data *data = sch5636_update_device(dev); |
224 | int val; |
225 | |
226 | if (IS_ERR(ptr: data)) |
227 | return PTR_ERR(ptr: data); |
228 | |
229 | val = (data->temp_ctrl[attr->index] & SCH5636_TEMP_ALARM) ? 1 : 0; |
230 | return sysfs_emit(buf, fmt: "%d\n" , val); |
231 | } |
232 | |
233 | static ssize_t fan_value_show(struct device *dev, |
234 | struct device_attribute *devattr, char *buf) |
235 | { |
236 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
237 | struct sch5636_data *data = sch5636_update_device(dev); |
238 | int val; |
239 | |
240 | if (IS_ERR(ptr: data)) |
241 | return PTR_ERR(ptr: data); |
242 | |
243 | val = reg_to_rpm(reg: data->fan_val[attr->index]); |
244 | if (val < 0) |
245 | return val; |
246 | |
247 | return sysfs_emit(buf, fmt: "%d\n" , val); |
248 | } |
249 | |
250 | static ssize_t fan_fault_show(struct device *dev, |
251 | struct device_attribute *devattr, char *buf) |
252 | { |
253 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
254 | struct sch5636_data *data = sch5636_update_device(dev); |
255 | int val; |
256 | |
257 | if (IS_ERR(ptr: data)) |
258 | return PTR_ERR(ptr: data); |
259 | |
260 | val = (data->fan_ctrl[attr->index] & SCH5636_FAN_NOT_PRESENT) ? 1 : 0; |
261 | return sysfs_emit(buf, fmt: "%d\n" , val); |
262 | } |
263 | |
264 | static ssize_t fan_alarm_show(struct device *dev, |
265 | struct device_attribute *devattr, char *buf) |
266 | { |
267 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
268 | struct sch5636_data *data = sch5636_update_device(dev); |
269 | int val; |
270 | |
271 | if (IS_ERR(ptr: data)) |
272 | return PTR_ERR(ptr: data); |
273 | |
274 | val = (data->fan_ctrl[attr->index] & SCH5636_FAN_ALARM) ? 1 : 0; |
275 | return sysfs_emit(buf, fmt: "%d\n" , val); |
276 | } |
277 | |
278 | static struct sensor_device_attribute sch5636_attr[] = { |
279 | SENSOR_ATTR_RO(name, name, 0), |
280 | SENSOR_ATTR_RO(in0_input, in_value, 0), |
281 | SENSOR_ATTR_RO(in0_label, in_label, 0), |
282 | SENSOR_ATTR_RO(in1_input, in_value, 1), |
283 | SENSOR_ATTR_RO(in1_label, in_label, 1), |
284 | SENSOR_ATTR_RO(in2_input, in_value, 2), |
285 | SENSOR_ATTR_RO(in2_label, in_label, 2), |
286 | SENSOR_ATTR_RO(in3_input, in_value, 3), |
287 | SENSOR_ATTR_RO(in3_label, in_label, 3), |
288 | SENSOR_ATTR_RO(in4_input, in_value, 4), |
289 | SENSOR_ATTR_RO(in4_label, in_label, 4), |
290 | }; |
291 | |
292 | static struct sensor_device_attribute sch5636_temp_attr[] = { |
293 | SENSOR_ATTR_RO(temp1_input, temp_value, 0), |
294 | SENSOR_ATTR_RO(temp1_fault, temp_fault, 0), |
295 | SENSOR_ATTR_RO(temp1_alarm, temp_alarm, 0), |
296 | SENSOR_ATTR_RO(temp2_input, temp_value, 1), |
297 | SENSOR_ATTR_RO(temp2_fault, temp_fault, 1), |
298 | SENSOR_ATTR_RO(temp2_alarm, temp_alarm, 1), |
299 | SENSOR_ATTR_RO(temp3_input, temp_value, 2), |
300 | SENSOR_ATTR_RO(temp3_fault, temp_fault, 2), |
301 | SENSOR_ATTR_RO(temp3_alarm, temp_alarm, 2), |
302 | SENSOR_ATTR_RO(temp4_input, temp_value, 3), |
303 | SENSOR_ATTR_RO(temp4_fault, temp_fault, 3), |
304 | SENSOR_ATTR_RO(temp4_alarm, temp_alarm, 3), |
305 | SENSOR_ATTR_RO(temp5_input, temp_value, 4), |
306 | SENSOR_ATTR_RO(temp5_fault, temp_fault, 4), |
307 | SENSOR_ATTR_RO(temp5_alarm, temp_alarm, 4), |
308 | SENSOR_ATTR_RO(temp6_input, temp_value, 5), |
309 | SENSOR_ATTR_RO(temp6_fault, temp_fault, 5), |
310 | SENSOR_ATTR_RO(temp6_alarm, temp_alarm, 5), |
311 | SENSOR_ATTR_RO(temp7_input, temp_value, 6), |
312 | SENSOR_ATTR_RO(temp7_fault, temp_fault, 6), |
313 | SENSOR_ATTR_RO(temp7_alarm, temp_alarm, 6), |
314 | SENSOR_ATTR_RO(temp8_input, temp_value, 7), |
315 | SENSOR_ATTR_RO(temp8_fault, temp_fault, 7), |
316 | SENSOR_ATTR_RO(temp8_alarm, temp_alarm, 7), |
317 | SENSOR_ATTR_RO(temp9_input, temp_value, 8), |
318 | SENSOR_ATTR_RO(temp9_fault, temp_fault, 8), |
319 | SENSOR_ATTR_RO(temp9_alarm, temp_alarm, 8), |
320 | SENSOR_ATTR_RO(temp10_input, temp_value, 9), |
321 | SENSOR_ATTR_RO(temp10_fault, temp_fault, 9), |
322 | SENSOR_ATTR_RO(temp10_alarm, temp_alarm, 9), |
323 | SENSOR_ATTR_RO(temp11_input, temp_value, 10), |
324 | SENSOR_ATTR_RO(temp11_fault, temp_fault, 10), |
325 | SENSOR_ATTR_RO(temp11_alarm, temp_alarm, 10), |
326 | SENSOR_ATTR_RO(temp12_input, temp_value, 11), |
327 | SENSOR_ATTR_RO(temp12_fault, temp_fault, 11), |
328 | SENSOR_ATTR_RO(temp12_alarm, temp_alarm, 11), |
329 | SENSOR_ATTR_RO(temp13_input, temp_value, 12), |
330 | SENSOR_ATTR_RO(temp13_fault, temp_fault, 12), |
331 | SENSOR_ATTR_RO(temp13_alarm, temp_alarm, 12), |
332 | SENSOR_ATTR_RO(temp14_input, temp_value, 13), |
333 | SENSOR_ATTR_RO(temp14_fault, temp_fault, 13), |
334 | SENSOR_ATTR_RO(temp14_alarm, temp_alarm, 13), |
335 | SENSOR_ATTR_RO(temp15_input, temp_value, 14), |
336 | SENSOR_ATTR_RO(temp15_fault, temp_fault, 14), |
337 | SENSOR_ATTR_RO(temp15_alarm, temp_alarm, 14), |
338 | SENSOR_ATTR_RO(temp16_input, temp_value, 15), |
339 | SENSOR_ATTR_RO(temp16_fault, temp_fault, 15), |
340 | SENSOR_ATTR_RO(temp16_alarm, temp_alarm, 15), |
341 | }; |
342 | |
343 | static struct sensor_device_attribute sch5636_fan_attr[] = { |
344 | SENSOR_ATTR_RO(fan1_input, fan_value, 0), |
345 | SENSOR_ATTR_RO(fan1_fault, fan_fault, 0), |
346 | SENSOR_ATTR_RO(fan1_alarm, fan_alarm, 0), |
347 | SENSOR_ATTR_RO(fan2_input, fan_value, 1), |
348 | SENSOR_ATTR_RO(fan2_fault, fan_fault, 1), |
349 | SENSOR_ATTR_RO(fan2_alarm, fan_alarm, 1), |
350 | SENSOR_ATTR_RO(fan3_input, fan_value, 2), |
351 | SENSOR_ATTR_RO(fan3_fault, fan_fault, 2), |
352 | SENSOR_ATTR_RO(fan3_alarm, fan_alarm, 2), |
353 | SENSOR_ATTR_RO(fan4_input, fan_value, 3), |
354 | SENSOR_ATTR_RO(fan4_fault, fan_fault, 3), |
355 | SENSOR_ATTR_RO(fan4_alarm, fan_alarm, 3), |
356 | SENSOR_ATTR_RO(fan5_input, fan_value, 4), |
357 | SENSOR_ATTR_RO(fan5_fault, fan_fault, 4), |
358 | SENSOR_ATTR_RO(fan5_alarm, fan_alarm, 4), |
359 | SENSOR_ATTR_RO(fan6_input, fan_value, 5), |
360 | SENSOR_ATTR_RO(fan6_fault, fan_fault, 5), |
361 | SENSOR_ATTR_RO(fan6_alarm, fan_alarm, 5), |
362 | SENSOR_ATTR_RO(fan7_input, fan_value, 6), |
363 | SENSOR_ATTR_RO(fan7_fault, fan_fault, 6), |
364 | SENSOR_ATTR_RO(fan7_alarm, fan_alarm, 6), |
365 | SENSOR_ATTR_RO(fan8_input, fan_value, 7), |
366 | SENSOR_ATTR_RO(fan8_fault, fan_fault, 7), |
367 | SENSOR_ATTR_RO(fan8_alarm, fan_alarm, 7), |
368 | }; |
369 | |
370 | static void sch5636_remove(struct platform_device *pdev) |
371 | { |
372 | struct sch5636_data *data = platform_get_drvdata(pdev); |
373 | int i; |
374 | |
375 | if (data->hwmon_dev) |
376 | hwmon_device_unregister(dev: data->hwmon_dev); |
377 | |
378 | for (i = 0; i < ARRAY_SIZE(sch5636_attr); i++) |
379 | device_remove_file(dev: &pdev->dev, attr: &sch5636_attr[i].dev_attr); |
380 | |
381 | for (i = 0; i < SCH5636_NO_TEMPS * 3; i++) |
382 | device_remove_file(dev: &pdev->dev, |
383 | attr: &sch5636_temp_attr[i].dev_attr); |
384 | |
385 | for (i = 0; i < SCH5636_NO_FANS * 3; i++) |
386 | device_remove_file(dev: &pdev->dev, |
387 | attr: &sch5636_fan_attr[i].dev_attr); |
388 | } |
389 | |
390 | static int sch5636_probe(struct platform_device *pdev) |
391 | { |
392 | struct sch5636_data *data; |
393 | int i, err, val, revision[2]; |
394 | char id[4]; |
395 | |
396 | data = devm_kzalloc(dev: &pdev->dev, size: sizeof(struct sch5636_data), |
397 | GFP_KERNEL); |
398 | if (!data) |
399 | return -ENOMEM; |
400 | |
401 | data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start; |
402 | mutex_init(&data->update_lock); |
403 | platform_set_drvdata(pdev, data); |
404 | |
405 | for (i = 0; i < 3; i++) { |
406 | val = sch56xx_read_virtual_reg(addr: data->addr, |
407 | SCH5636_REG_FUJITSU_ID + i); |
408 | if (val < 0) { |
409 | pr_err("Could not read Fujitsu id byte at %#x\n" , |
410 | SCH5636_REG_FUJITSU_ID + i); |
411 | err = val; |
412 | goto error; |
413 | } |
414 | id[i] = val; |
415 | } |
416 | id[i] = '\0'; |
417 | |
418 | if (strcmp(id, "THS" )) { |
419 | pr_err("Unknown Fujitsu id: %02x%02x%02x\n" , |
420 | id[0], id[1], id[2]); |
421 | err = -ENODEV; |
422 | goto error; |
423 | } |
424 | |
425 | for (i = 0; i < 2; i++) { |
426 | val = sch56xx_read_virtual_reg(addr: data->addr, |
427 | SCH5636_REG_FUJITSU_REV + i); |
428 | if (val < 0) { |
429 | err = val; |
430 | goto error; |
431 | } |
432 | revision[i] = val; |
433 | } |
434 | pr_info("Found %s chip at %#hx, revision: %d.%02d\n" , DEVNAME, |
435 | data->addr, revision[0], revision[1]); |
436 | |
437 | /* Read all temp + fan ctrl registers to determine which are active */ |
438 | for (i = 0; i < SCH5636_NO_TEMPS; i++) { |
439 | val = sch56xx_read_virtual_reg(addr: data->addr, |
440 | SCH5636_REG_TEMP_CTRL(i)); |
441 | if (unlikely(val < 0)) { |
442 | err = val; |
443 | goto error; |
444 | } |
445 | data->temp_ctrl[i] = val; |
446 | } |
447 | |
448 | for (i = 0; i < SCH5636_NO_FANS; i++) { |
449 | val = sch56xx_read_virtual_reg(addr: data->addr, |
450 | SCH5636_REG_FAN_CTRL(i)); |
451 | if (unlikely(val < 0)) { |
452 | err = val; |
453 | goto error; |
454 | } |
455 | data->fan_ctrl[i] = val; |
456 | } |
457 | |
458 | for (i = 0; i < ARRAY_SIZE(sch5636_attr); i++) { |
459 | err = device_create_file(device: &pdev->dev, |
460 | entry: &sch5636_attr[i].dev_attr); |
461 | if (err) |
462 | goto error; |
463 | } |
464 | |
465 | for (i = 0; i < (SCH5636_NO_TEMPS * 3); i++) { |
466 | if (data->temp_ctrl[i/3] & SCH5636_TEMP_DEACTIVATED) |
467 | continue; |
468 | |
469 | err = device_create_file(device: &pdev->dev, |
470 | entry: &sch5636_temp_attr[i].dev_attr); |
471 | if (err) |
472 | goto error; |
473 | } |
474 | |
475 | for (i = 0; i < (SCH5636_NO_FANS * 3); i++) { |
476 | if (data->fan_ctrl[i/3] & SCH5636_FAN_DEACTIVATED) |
477 | continue; |
478 | |
479 | err = device_create_file(device: &pdev->dev, |
480 | entry: &sch5636_fan_attr[i].dev_attr); |
481 | if (err) |
482 | goto error; |
483 | } |
484 | |
485 | data->hwmon_dev = hwmon_device_register(dev: &pdev->dev); |
486 | if (IS_ERR(ptr: data->hwmon_dev)) { |
487 | err = PTR_ERR(ptr: data->hwmon_dev); |
488 | data->hwmon_dev = NULL; |
489 | goto error; |
490 | } |
491 | |
492 | /* Note failing to register the watchdog is not a fatal error */ |
493 | sch56xx_watchdog_register(parent: &pdev->dev, addr: data->addr, revision: (revision[0] << 8) | revision[1], |
494 | io_lock: &data->update_lock, check_enabled: 0); |
495 | |
496 | return 0; |
497 | |
498 | error: |
499 | sch5636_remove(pdev); |
500 | return err; |
501 | } |
502 | |
503 | static const struct platform_device_id sch5636_device_id[] = { |
504 | { |
505 | .name = "sch5636" , |
506 | }, |
507 | { } |
508 | }; |
509 | MODULE_DEVICE_TABLE(platform, sch5636_device_id); |
510 | |
511 | static struct platform_driver sch5636_driver = { |
512 | .driver = { |
513 | .name = DRVNAME, |
514 | }, |
515 | .probe = sch5636_probe, |
516 | .remove_new = sch5636_remove, |
517 | .id_table = sch5636_device_id, |
518 | }; |
519 | |
520 | module_platform_driver(sch5636_driver); |
521 | |
522 | MODULE_DESCRIPTION("SMSC SCH5636 Hardware Monitoring Driver" ); |
523 | MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>" ); |
524 | MODULE_LICENSE("GPL" ); |
525 | |