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74ba9207 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 | 2 | /* |
8fda79ec GR |
3 | * sis5595.c - Part of lm_sensors, Linux kernel modules |
4 | * for hardware monitoring | |
5 | * | |
6 | * Copyright (C) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>, | |
7 | * Kyösti Mälkki <kmalkki@cc.hut.fi>, and | |
8 | * Mark D. Studebaker <mdsxyz123@yahoo.com> | |
9 | * Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with | |
7c81c60f | 10 | * the help of Jean Delvare <jdelvare@suse.de> |
8fda79ec | 11 | */ |
1da177e4 LT |
12 | |
13 | /* | |
8fda79ec GR |
14 | * SiS southbridge has a LM78-like chip integrated on the same IC. |
15 | * This driver is a customized copy of lm78.c | |
16 | * | |
17 | * Supports following revisions: | |
18 | * Version PCI ID PCI Revision | |
19 | * 1 1039/0008 AF or less | |
20 | * 2 1039/0008 B0 or greater | |
21 | * | |
22 | * Note: these chips contain a 0008 device which is incompatible with the | |
23 | * 5595. We recognize these by the presence of the listed | |
24 | * "blacklist" PCI ID and refuse to load. | |
25 | * | |
26 | * NOT SUPPORTED PCI ID BLACKLIST PCI ID | |
27 | * 540 0008 0540 | |
28 | * 550 0008 0550 | |
29 | * 5513 0008 5511 | |
30 | * 5581 0008 5597 | |
31 | * 5582 0008 5597 | |
32 | * 5597 0008 5597 | |
33 | * 5598 0008 5597/5598 | |
34 | * 630 0008 0630 | |
35 | * 645 0008 0645 | |
36 | * 730 0008 0730 | |
37 | * 735 0008 0735 | |
38 | */ | |
1da177e4 | 39 | |
4b2515db JP |
40 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
41 | ||
1da177e4 LT |
42 | #include <linux/module.h> |
43 | #include <linux/slab.h> | |
44 | #include <linux/ioport.h> | |
45 | #include <linux/pci.h> | |
17e7dc43 | 46 | #include <linux/platform_device.h> |
943b0830 | 47 | #include <linux/hwmon.h> |
1f5f48dd | 48 | #include <linux/hwmon-sysfs.h> |
943b0830 | 49 | #include <linux/err.h> |
1da177e4 | 50 | #include <linux/init.h> |
ff324094 | 51 | #include <linux/jiffies.h> |
9a61bf63 | 52 | #include <linux/mutex.h> |
a5ebe668 | 53 | #include <linux/sysfs.h> |
b9acb64a | 54 | #include <linux/acpi.h> |
6055fae8 | 55 | #include <linux/io.h> |
1da177e4 | 56 | |
8fda79ec GR |
57 | /* |
58 | * If force_addr is set to anything different from 0, we forcibly enable | |
59 | * the device at the given address. | |
60 | */ | |
1da177e4 LT |
61 | static u16 force_addr; |
62 | module_param(force_addr, ushort, 0); | |
63 | MODULE_PARM_DESC(force_addr, | |
64 | "Initialize the base address of the sensors"); | |
65 | ||
17e7dc43 | 66 | static struct platform_device *pdev; |
1da177e4 LT |
67 | |
68 | /* Many SIS5595 constants specified below */ | |
69 | ||
70 | /* Length of ISA address segment */ | |
71 | #define SIS5595_EXTENT 8 | |
72 | /* PCI Config Registers */ | |
1da177e4 LT |
73 | #define SIS5595_BASE_REG 0x68 |
74 | #define SIS5595_PIN_REG 0x7A | |
75 | #define SIS5595_ENABLE_REG 0x7B | |
76 | ||
77 | /* Where are the ISA address/data registers relative to the base address */ | |
78 | #define SIS5595_ADDR_REG_OFFSET 5 | |
79 | #define SIS5595_DATA_REG_OFFSET 6 | |
80 | ||
81 | /* The SIS5595 registers */ | |
82 | #define SIS5595_REG_IN_MAX(nr) (0x2b + (nr) * 2) | |
83 | #define SIS5595_REG_IN_MIN(nr) (0x2c + (nr) * 2) | |
84 | #define SIS5595_REG_IN(nr) (0x20 + (nr)) | |
85 | ||
86 | #define SIS5595_REG_FAN_MIN(nr) (0x3b + (nr)) | |
87 | #define SIS5595_REG_FAN(nr) (0x28 + (nr)) | |
88 | ||
8fda79ec GR |
89 | /* |
90 | * On the first version of the chip, the temp registers are separate. | |
91 | * On the second version, | |
92 | * TEMP pin is shared with IN4, configured in PCI register 0x7A. | |
93 | * The registers are the same as well. | |
94 | * OVER and HYST are really MAX and MIN. | |
95 | */ | |
1da177e4 LT |
96 | |
97 | #define REV2MIN 0xb0 | |
8fda79ec GR |
98 | #define SIS5595_REG_TEMP (((data->revision) >= REV2MIN) ? \ |
99 | SIS5595_REG_IN(4) : 0x27) | |
100 | #define SIS5595_REG_TEMP_OVER (((data->revision) >= REV2MIN) ? \ | |
101 | SIS5595_REG_IN_MAX(4) : 0x39) | |
102 | #define SIS5595_REG_TEMP_HYST (((data->revision) >= REV2MIN) ? \ | |
103 | SIS5595_REG_IN_MIN(4) : 0x3a) | |
1da177e4 LT |
104 | |
105 | #define SIS5595_REG_CONFIG 0x40 | |
106 | #define SIS5595_REG_ALARM1 0x41 | |
107 | #define SIS5595_REG_ALARM2 0x42 | |
108 | #define SIS5595_REG_FANDIV 0x47 | |
109 | ||
8fda79ec GR |
110 | /* |
111 | * Conversions. Limit checking is only done on the TO_REG | |
112 | * variants. | |
113 | */ | |
1da177e4 | 114 | |
8fda79ec GR |
115 | /* |
116 | * IN: mV, (0V to 4.08V) | |
117 | * REG: 16mV/bit | |
118 | */ | |
1da177e4 LT |
119 | static inline u8 IN_TO_REG(unsigned long val) |
120 | { | |
2a844c14 | 121 | unsigned long nval = clamp_val(val, 0, 4080); |
1da177e4 LT |
122 | return (nval + 8) / 16; |
123 | } | |
124 | #define IN_FROM_REG(val) ((val) * 16) | |
125 | ||
126 | static inline u8 FAN_TO_REG(long rpm, int div) | |
127 | { | |
128 | if (rpm <= 0) | |
129 | return 255; | |
3806b45b DC |
130 | if (rpm > 1350000) |
131 | return 1; | |
2a844c14 | 132 | return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254); |
1da177e4 LT |
133 | } |
134 | ||
135 | static inline int FAN_FROM_REG(u8 val, int div) | |
136 | { | |
8fda79ec | 137 | return val == 0 ? -1 : val == 255 ? 0 : 1350000 / (val * div); |
1da177e4 LT |
138 | } |
139 | ||
8fda79ec GR |
140 | /* |
141 | * TEMP: mC (-54.12C to +157.53C) | |
142 | * REG: 0.83C/bit + 52.12, two's complement | |
143 | */ | |
1da177e4 LT |
144 | static inline int TEMP_FROM_REG(s8 val) |
145 | { | |
146 | return val * 830 + 52120; | |
147 | } | |
cc336546 | 148 | static inline s8 TEMP_TO_REG(long val) |
1da177e4 | 149 | { |
2a844c14 | 150 | int nval = clamp_val(val, -54120, 157530) ; |
8fda79ec | 151 | return nval < 0 ? (nval - 5212 - 415) / 830 : (nval - 5212 + 415) / 830; |
1da177e4 LT |
152 | } |
153 | ||
8fda79ec GR |
154 | /* |
155 | * FAN DIV: 1, 2, 4, or 8 (defaults to 2) | |
156 | * REG: 0, 1, 2, or 3 (respectively) (defaults to 1) | |
157 | */ | |
1da177e4 LT |
158 | static inline u8 DIV_TO_REG(int val) |
159 | { | |
8fda79ec | 160 | return val == 8 ? 3 : val == 4 ? 2 : val == 1 ? 0 : 1; |
1da177e4 LT |
161 | } |
162 | #define DIV_FROM_REG(val) (1 << (val)) | |
163 | ||
8fda79ec GR |
164 | /* |
165 | * For each registered chip, we need to keep some data in memory. | |
166 | * The structure is dynamically allocated. | |
167 | */ | |
1da177e4 | 168 | struct sis5595_data { |
17e7dc43 JD |
169 | unsigned short addr; |
170 | const char *name; | |
1beeffe4 | 171 | struct device *hwmon_dev; |
9a61bf63 | 172 | struct mutex lock; |
1da177e4 | 173 | |
9a61bf63 | 174 | struct mutex update_lock; |
952a11ca | 175 | bool valid; /* true if following fields are valid */ |
1da177e4 LT |
176 | unsigned long last_updated; /* In jiffies */ |
177 | char maxins; /* == 3 if temp enabled, otherwise == 4 */ | |
178 | u8 revision; /* Reg. value */ | |
179 | ||
180 | u8 in[5]; /* Register value */ | |
181 | u8 in_max[5]; /* Register value */ | |
182 | u8 in_min[5]; /* Register value */ | |
183 | u8 fan[2]; /* Register value */ | |
184 | u8 fan_min[2]; /* Register value */ | |
185 | s8 temp; /* Register value */ | |
186 | s8 temp_over; /* Register value */ | |
187 | s8 temp_hyst; /* Register value */ | |
188 | u8 fan_div[2]; /* Register encoding, shifted right */ | |
189 | u16 alarms; /* Register encoding, combined */ | |
190 | }; | |
191 | ||
192 | static struct pci_dev *s_bridge; /* pointer to the (only) sis5595 */ | |
193 | ||
17e7dc43 | 194 | static int sis5595_probe(struct platform_device *pdev); |
281dfd0b | 195 | static int sis5595_remove(struct platform_device *pdev); |
1da177e4 | 196 | |
17e7dc43 JD |
197 | static int sis5595_read_value(struct sis5595_data *data, u8 reg); |
198 | static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value); | |
1da177e4 | 199 | static struct sis5595_data *sis5595_update_device(struct device *dev); |
17e7dc43 | 200 | static void sis5595_init_device(struct sis5595_data *data); |
1da177e4 | 201 | |
17e7dc43 | 202 | static struct platform_driver sis5595_driver = { |
cdaf7934 | 203 | .driver = { |
cdaf7934 LR |
204 | .name = "sis5595", |
205 | }, | |
17e7dc43 | 206 | .probe = sis5595_probe, |
9e5e9b7a | 207 | .remove = sis5595_remove, |
1da177e4 LT |
208 | }; |
209 | ||
210 | /* 4 Voltages */ | |
60a9c3f1 | 211 | static ssize_t in_show(struct device *dev, struct device_attribute *da, |
1f5f48dd | 212 | char *buf) |
1da177e4 LT |
213 | { |
214 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
215 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
216 | int nr = attr->index; | |
1da177e4 LT |
217 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr])); |
218 | } | |
219 | ||
60a9c3f1 | 220 | static ssize_t in_min_show(struct device *dev, struct device_attribute *da, |
1f5f48dd | 221 | char *buf) |
1da177e4 LT |
222 | { |
223 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
224 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
225 | int nr = attr->index; | |
1da177e4 LT |
226 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr])); |
227 | } | |
228 | ||
60a9c3f1 | 229 | static ssize_t in_max_show(struct device *dev, struct device_attribute *da, |
1f5f48dd | 230 | char *buf) |
1da177e4 LT |
231 | { |
232 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
233 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
234 | int nr = attr->index; | |
1da177e4 LT |
235 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr])); |
236 | } | |
237 | ||
60a9c3f1 GR |
238 | static ssize_t in_min_store(struct device *dev, struct device_attribute *da, |
239 | const char *buf, size_t count) | |
1da177e4 | 240 | { |
17e7dc43 | 241 | struct sis5595_data *data = dev_get_drvdata(dev); |
1f5f48dd JD |
242 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
243 | int nr = attr->index; | |
8fda79ec GR |
244 | unsigned long val; |
245 | int err; | |
246 | ||
247 | err = kstrtoul(buf, 10, &val); | |
248 | if (err) | |
249 | return err; | |
1da177e4 | 250 | |
9a61bf63 | 251 | mutex_lock(&data->update_lock); |
1da177e4 | 252 | data->in_min[nr] = IN_TO_REG(val); |
17e7dc43 | 253 | sis5595_write_value(data, SIS5595_REG_IN_MIN(nr), data->in_min[nr]); |
9a61bf63 | 254 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
255 | return count; |
256 | } | |
257 | ||
60a9c3f1 GR |
258 | static ssize_t in_max_store(struct device *dev, struct device_attribute *da, |
259 | const char *buf, size_t count) | |
1da177e4 | 260 | { |
17e7dc43 | 261 | struct sis5595_data *data = dev_get_drvdata(dev); |
1f5f48dd JD |
262 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
263 | int nr = attr->index; | |
8fda79ec GR |
264 | unsigned long val; |
265 | int err; | |
266 | ||
267 | err = kstrtoul(buf, 10, &val); | |
268 | if (err) | |
269 | return err; | |
1da177e4 | 270 | |
9a61bf63 | 271 | mutex_lock(&data->update_lock); |
1da177e4 | 272 | data->in_max[nr] = IN_TO_REG(val); |
17e7dc43 | 273 | sis5595_write_value(data, SIS5595_REG_IN_MAX(nr), data->in_max[nr]); |
9a61bf63 | 274 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
275 | return count; |
276 | } | |
277 | ||
60a9c3f1 GR |
278 | static SENSOR_DEVICE_ATTR_RO(in0_input, in, 0); |
279 | static SENSOR_DEVICE_ATTR_RW(in0_min, in_min, 0); | |
280 | static SENSOR_DEVICE_ATTR_RW(in0_max, in_max, 0); | |
281 | static SENSOR_DEVICE_ATTR_RO(in1_input, in, 1); | |
282 | static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1); | |
283 | static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1); | |
284 | static SENSOR_DEVICE_ATTR_RO(in2_input, in, 2); | |
285 | static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2); | |
286 | static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2); | |
287 | static SENSOR_DEVICE_ATTR_RO(in3_input, in, 3); | |
288 | static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3); | |
289 | static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3); | |
290 | static SENSOR_DEVICE_ATTR_RO(in4_input, in, 4); | |
291 | static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4); | |
292 | static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4); | |
1da177e4 LT |
293 | |
294 | /* Temperature */ | |
feaf8bd4 JL |
295 | static ssize_t temp1_input_show(struct device *dev, |
296 | struct device_attribute *attr, char *buf) | |
1da177e4 LT |
297 | { |
298 | struct sis5595_data *data = sis5595_update_device(dev); | |
299 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp)); | |
300 | } | |
301 | ||
feaf8bd4 | 302 | static ssize_t temp1_max_show(struct device *dev, struct device_attribute *attr, |
8fda79ec | 303 | char *buf) |
1da177e4 LT |
304 | { |
305 | struct sis5595_data *data = sis5595_update_device(dev); | |
306 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_over)); | |
307 | } | |
308 | ||
feaf8bd4 JL |
309 | static ssize_t temp1_max_store(struct device *dev, |
310 | struct device_attribute *attr, const char *buf, | |
311 | size_t count) | |
1da177e4 | 312 | { |
17e7dc43 | 313 | struct sis5595_data *data = dev_get_drvdata(dev); |
8fda79ec GR |
314 | long val; |
315 | int err; | |
316 | ||
317 | err = kstrtol(buf, 10, &val); | |
318 | if (err) | |
319 | return err; | |
1da177e4 | 320 | |
9a61bf63 | 321 | mutex_lock(&data->update_lock); |
1da177e4 | 322 | data->temp_over = TEMP_TO_REG(val); |
17e7dc43 | 323 | sis5595_write_value(data, SIS5595_REG_TEMP_OVER, data->temp_over); |
9a61bf63 | 324 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
325 | return count; |
326 | } | |
327 | ||
feaf8bd4 JL |
328 | static ssize_t temp1_max_hyst_show(struct device *dev, |
329 | struct device_attribute *attr, char *buf) | |
1da177e4 LT |
330 | { |
331 | struct sis5595_data *data = sis5595_update_device(dev); | |
332 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_hyst)); | |
333 | } | |
334 | ||
feaf8bd4 JL |
335 | static ssize_t temp1_max_hyst_store(struct device *dev, |
336 | struct device_attribute *attr, | |
337 | const char *buf, size_t count) | |
1da177e4 | 338 | { |
17e7dc43 | 339 | struct sis5595_data *data = dev_get_drvdata(dev); |
8fda79ec GR |
340 | long val; |
341 | int err; | |
342 | ||
343 | err = kstrtol(buf, 10, &val); | |
344 | if (err) | |
345 | return err; | |
1da177e4 | 346 | |
9a61bf63 | 347 | mutex_lock(&data->update_lock); |
1da177e4 | 348 | data->temp_hyst = TEMP_TO_REG(val); |
17e7dc43 | 349 | sis5595_write_value(data, SIS5595_REG_TEMP_HYST, data->temp_hyst); |
9a61bf63 | 350 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
351 | return count; |
352 | } | |
353 | ||
feaf8bd4 JL |
354 | static DEVICE_ATTR_RO(temp1_input); |
355 | static DEVICE_ATTR_RW(temp1_max); | |
356 | static DEVICE_ATTR_RW(temp1_max_hyst); | |
1da177e4 LT |
357 | |
358 | /* 2 Fans */ | |
60a9c3f1 | 359 | static ssize_t fan_show(struct device *dev, struct device_attribute *da, |
1f5f48dd | 360 | char *buf) |
1da177e4 LT |
361 | { |
362 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
363 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
364 | int nr = attr->index; | |
1da177e4 | 365 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], |
8fda79ec | 366 | DIV_FROM_REG(data->fan_div[nr]))); |
1da177e4 LT |
367 | } |
368 | ||
60a9c3f1 | 369 | static ssize_t fan_min_show(struct device *dev, struct device_attribute *da, |
1f5f48dd | 370 | char *buf) |
1da177e4 LT |
371 | { |
372 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
373 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
374 | int nr = attr->index; | |
8fda79ec GR |
375 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], |
376 | DIV_FROM_REG(data->fan_div[nr]))); | |
1da177e4 LT |
377 | } |
378 | ||
60a9c3f1 GR |
379 | static ssize_t fan_min_store(struct device *dev, struct device_attribute *da, |
380 | const char *buf, size_t count) | |
1da177e4 | 381 | { |
17e7dc43 | 382 | struct sis5595_data *data = dev_get_drvdata(dev); |
1f5f48dd JD |
383 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
384 | int nr = attr->index; | |
8fda79ec GR |
385 | unsigned long val; |
386 | int err; | |
387 | ||
388 | err = kstrtoul(buf, 10, &val); | |
389 | if (err) | |
390 | return err; | |
1da177e4 | 391 | |
9a61bf63 | 392 | mutex_lock(&data->update_lock); |
1da177e4 | 393 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
17e7dc43 | 394 | sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); |
9a61bf63 | 395 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
396 | return count; |
397 | } | |
398 | ||
60a9c3f1 | 399 | static ssize_t fan_div_show(struct device *dev, struct device_attribute *da, |
1f5f48dd | 400 | char *buf) |
1da177e4 LT |
401 | { |
402 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
403 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
404 | int nr = attr->index; | |
8fda79ec | 405 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); |
1da177e4 LT |
406 | } |
407 | ||
8fda79ec GR |
408 | /* |
409 | * Note: we save and restore the fan minimum here, because its value is | |
410 | * determined in part by the fan divisor. This follows the principle of | |
411 | * least surprise; the user doesn't expect the fan minimum to change just | |
412 | * because the divisor changed. | |
413 | */ | |
60a9c3f1 GR |
414 | static ssize_t fan_div_store(struct device *dev, struct device_attribute *da, |
415 | const char *buf, size_t count) | |
1da177e4 | 416 | { |
17e7dc43 | 417 | struct sis5595_data *data = dev_get_drvdata(dev); |
1f5f48dd JD |
418 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
419 | int nr = attr->index; | |
1da177e4 | 420 | unsigned long min; |
1da177e4 | 421 | int reg; |
8fda79ec GR |
422 | unsigned long val; |
423 | int err; | |
424 | ||
425 | err = kstrtoul(buf, 10, &val); | |
426 | if (err) | |
427 | return err; | |
1da177e4 | 428 | |
9a61bf63 | 429 | mutex_lock(&data->update_lock); |
1da177e4 LT |
430 | min = FAN_FROM_REG(data->fan_min[nr], |
431 | DIV_FROM_REG(data->fan_div[nr])); | |
17e7dc43 | 432 | reg = sis5595_read_value(data, SIS5595_REG_FANDIV); |
1da177e4 LT |
433 | |
434 | switch (val) { | |
8fda79ec GR |
435 | case 1: |
436 | data->fan_div[nr] = 0; | |
437 | break; | |
438 | case 2: | |
439 | data->fan_div[nr] = 1; | |
440 | break; | |
441 | case 4: | |
442 | data->fan_div[nr] = 2; | |
443 | break; | |
444 | case 8: | |
445 | data->fan_div[nr] = 3; | |
446 | break; | |
1da177e4 | 447 | default: |
b55f3757 GR |
448 | dev_err(dev, |
449 | "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8!\n", | |
450 | val); | |
9a61bf63 | 451 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
452 | return -EINVAL; |
453 | } | |
8fda79ec | 454 | |
1da177e4 LT |
455 | switch (nr) { |
456 | case 0: | |
457 | reg = (reg & 0xcf) | (data->fan_div[nr] << 4); | |
458 | break; | |
459 | case 1: | |
460 | reg = (reg & 0x3f) | (data->fan_div[nr] << 6); | |
461 | break; | |
462 | } | |
17e7dc43 | 463 | sis5595_write_value(data, SIS5595_REG_FANDIV, reg); |
1da177e4 LT |
464 | data->fan_min[nr] = |
465 | FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
17e7dc43 | 466 | sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); |
9a61bf63 | 467 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
468 | return count; |
469 | } | |
470 | ||
60a9c3f1 GR |
471 | static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0); |
472 | static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0); | |
473 | static SENSOR_DEVICE_ATTR_RW(fan1_div, fan_div, 0); | |
474 | static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 1); | |
475 | static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1); | |
476 | static SENSOR_DEVICE_ATTR_RW(fan2_div, fan_div, 1); | |
1da177e4 | 477 | |
1da177e4 | 478 | /* Alarms */ |
feaf8bd4 | 479 | static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, |
8fda79ec | 480 | char *buf) |
1da177e4 LT |
481 | { |
482 | struct sis5595_data *data = sis5595_update_device(dev); | |
483 | return sprintf(buf, "%d\n", data->alarms); | |
484 | } | |
feaf8bd4 | 485 | static DEVICE_ATTR_RO(alarms); |
a5ebe668 | 486 | |
60a9c3f1 | 487 | static ssize_t alarm_show(struct device *dev, struct device_attribute *da, |
5c726b3b IM |
488 | char *buf) |
489 | { | |
490 | struct sis5595_data *data = sis5595_update_device(dev); | |
491 | int nr = to_sensor_dev_attr(da)->index; | |
492 | return sprintf(buf, "%u\n", (data->alarms >> nr) & 1); | |
493 | } | |
60a9c3f1 GR |
494 | static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 0); |
495 | static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 1); | |
496 | static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 2); | |
497 | static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 3); | |
498 | static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 15); | |
499 | static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, 6); | |
500 | static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, 7); | |
501 | static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 15); | |
5c726b3b | 502 | |
feaf8bd4 | 503 | static ssize_t name_show(struct device *dev, struct device_attribute *attr, |
17e7dc43 JD |
504 | char *buf) |
505 | { | |
506 | struct sis5595_data *data = dev_get_drvdata(dev); | |
507 | return sprintf(buf, "%s\n", data->name); | |
508 | } | |
feaf8bd4 | 509 | static DEVICE_ATTR_RO(name); |
17e7dc43 | 510 | |
a5ebe668 | 511 | static struct attribute *sis5595_attributes[] = { |
1f5f48dd JD |
512 | &sensor_dev_attr_in0_input.dev_attr.attr, |
513 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
514 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
5c726b3b | 515 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1f5f48dd JD |
516 | &sensor_dev_attr_in1_input.dev_attr.attr, |
517 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
518 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
5c726b3b | 519 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
1f5f48dd JD |
520 | &sensor_dev_attr_in2_input.dev_attr.attr, |
521 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
522 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
5c726b3b | 523 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
1f5f48dd JD |
524 | &sensor_dev_attr_in3_input.dev_attr.attr, |
525 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
526 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
5c726b3b | 527 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
1f5f48dd JD |
528 | |
529 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
530 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
531 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
5c726b3b | 532 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1f5f48dd JD |
533 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
534 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
535 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
5c726b3b | 536 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
a5ebe668 JD |
537 | |
538 | &dev_attr_alarms.attr, | |
17e7dc43 | 539 | &dev_attr_name.attr, |
a5ebe668 JD |
540 | NULL |
541 | }; | |
542 | ||
543 | static const struct attribute_group sis5595_group = { | |
544 | .attrs = sis5595_attributes, | |
545 | }; | |
546 | ||
76e63860 | 547 | static struct attribute *sis5595_attributes_in4[] = { |
1f5f48dd JD |
548 | &sensor_dev_attr_in4_input.dev_attr.attr, |
549 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
550 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
5c726b3b | 551 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
76e63860 IM |
552 | NULL |
553 | }; | |
554 | ||
555 | static const struct attribute_group sis5595_group_in4 = { | |
556 | .attrs = sis5595_attributes_in4, | |
557 | }; | |
a5ebe668 | 558 | |
76e63860 | 559 | static struct attribute *sis5595_attributes_temp1[] = { |
a5ebe668 JD |
560 | &dev_attr_temp1_input.attr, |
561 | &dev_attr_temp1_max.attr, | |
562 | &dev_attr_temp1_max_hyst.attr, | |
5c726b3b | 563 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
a5ebe668 JD |
564 | NULL |
565 | }; | |
566 | ||
76e63860 IM |
567 | static const struct attribute_group sis5595_group_temp1 = { |
568 | .attrs = sis5595_attributes_temp1, | |
a5ebe668 | 569 | }; |
8fda79ec | 570 | |
1da177e4 | 571 | /* This is called when the module is loaded */ |
6c931ae1 | 572 | static int sis5595_probe(struct platform_device *pdev) |
1da177e4 LT |
573 | { |
574 | int err = 0; | |
575 | int i; | |
1da177e4 | 576 | struct sis5595_data *data; |
17e7dc43 | 577 | struct resource *res; |
1da177e4 | 578 | char val; |
1da177e4 | 579 | |
1da177e4 | 580 | /* Reserve the ISA region */ |
17e7dc43 | 581 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
5d224ade GR |
582 | if (!devm_request_region(&pdev->dev, res->start, SIS5595_EXTENT, |
583 | sis5595_driver.driver.name)) | |
584 | return -EBUSY; | |
1da177e4 | 585 | |
5d224ade GR |
586 | data = devm_kzalloc(&pdev->dev, sizeof(struct sis5595_data), |
587 | GFP_KERNEL); | |
588 | if (!data) | |
589 | return -ENOMEM; | |
1da177e4 | 590 | |
9a61bf63 | 591 | mutex_init(&data->lock); |
17e7dc43 JD |
592 | mutex_init(&data->update_lock); |
593 | data->addr = res->start; | |
594 | data->name = "sis5595"; | |
595 | platform_set_drvdata(pdev, data); | |
1da177e4 | 596 | |
8fda79ec GR |
597 | /* |
598 | * Check revision and pin registers to determine whether 4 or 5 voltages | |
599 | */ | |
7b6d1f04 | 600 | data->revision = s_bridge->revision; |
1da177e4 LT |
601 | /* 4 voltages, 1 temp */ |
602 | data->maxins = 3; | |
603 | if (data->revision >= REV2MIN) { | |
604 | pci_read_config_byte(s_bridge, SIS5595_PIN_REG, &val); | |
605 | if (!(val & 0x80)) | |
606 | /* 5 voltages, no temps */ | |
607 | data->maxins = 4; | |
608 | } | |
8fda79ec | 609 | |
1da177e4 | 610 | /* Initialize the SIS5595 chip */ |
17e7dc43 | 611 | sis5595_init_device(data); |
1da177e4 LT |
612 | |
613 | /* A few vars need to be filled upon startup */ | |
614 | for (i = 0; i < 2; i++) { | |
17e7dc43 | 615 | data->fan_min[i] = sis5595_read_value(data, |
1da177e4 LT |
616 | SIS5595_REG_FAN_MIN(i)); |
617 | } | |
618 | ||
619 | /* Register sysfs hooks */ | |
8fda79ec GR |
620 | err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group); |
621 | if (err) | |
5d224ade | 622 | return err; |
a5ebe668 | 623 | if (data->maxins == 4) { |
8fda79ec GR |
624 | err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group_in4); |
625 | if (err) | |
a5ebe668 JD |
626 | goto exit_remove_files; |
627 | } else { | |
8fda79ec GR |
628 | err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group_temp1); |
629 | if (err) | |
a5ebe668 JD |
630 | goto exit_remove_files; |
631 | } | |
632 | ||
1beeffe4 TJ |
633 | data->hwmon_dev = hwmon_device_register(&pdev->dev); |
634 | if (IS_ERR(data->hwmon_dev)) { | |
635 | err = PTR_ERR(data->hwmon_dev); | |
a5ebe668 | 636 | goto exit_remove_files; |
943b0830 MH |
637 | } |
638 | ||
1da177e4 | 639 | return 0; |
943b0830 | 640 | |
a5ebe668 | 641 | exit_remove_files: |
17e7dc43 | 642 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group); |
76e63860 IM |
643 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_in4); |
644 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_temp1); | |
1da177e4 LT |
645 | return err; |
646 | } | |
647 | ||
281dfd0b | 648 | static int sis5595_remove(struct platform_device *pdev) |
1da177e4 | 649 | { |
17e7dc43 | 650 | struct sis5595_data *data = platform_get_drvdata(pdev); |
1da177e4 | 651 | |
1beeffe4 | 652 | hwmon_device_unregister(data->hwmon_dev); |
17e7dc43 | 653 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group); |
76e63860 IM |
654 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_in4); |
655 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_temp1); | |
1da177e4 | 656 | |
1da177e4 LT |
657 | return 0; |
658 | } | |
659 | ||
1da177e4 | 660 | /* ISA access must be locked explicitly. */ |
17e7dc43 | 661 | static int sis5595_read_value(struct sis5595_data *data, u8 reg) |
1da177e4 LT |
662 | { |
663 | int res; | |
664 | ||
9a61bf63 | 665 | mutex_lock(&data->lock); |
17e7dc43 JD |
666 | outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET); |
667 | res = inb_p(data->addr + SIS5595_DATA_REG_OFFSET); | |
9a61bf63 | 668 | mutex_unlock(&data->lock); |
1da177e4 LT |
669 | return res; |
670 | } | |
671 | ||
17e7dc43 | 672 | static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value) |
1da177e4 | 673 | { |
9a61bf63 | 674 | mutex_lock(&data->lock); |
17e7dc43 JD |
675 | outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET); |
676 | outb_p(value, data->addr + SIS5595_DATA_REG_OFFSET); | |
9a61bf63 | 677 | mutex_unlock(&data->lock); |
1da177e4 LT |
678 | } |
679 | ||
680 | /* Called when we have found a new SIS5595. */ | |
6c931ae1 | 681 | static void sis5595_init_device(struct sis5595_data *data) |
1da177e4 | 682 | { |
17e7dc43 | 683 | u8 config = sis5595_read_value(data, SIS5595_REG_CONFIG); |
1da177e4 | 684 | if (!(config & 0x01)) |
17e7dc43 | 685 | sis5595_write_value(data, SIS5595_REG_CONFIG, |
1da177e4 LT |
686 | (config & 0xf7) | 0x01); |
687 | } | |
688 | ||
689 | static struct sis5595_data *sis5595_update_device(struct device *dev) | |
690 | { | |
17e7dc43 | 691 | struct sis5595_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
692 | int i; |
693 | ||
9a61bf63 | 694 | mutex_lock(&data->update_lock); |
1da177e4 LT |
695 | |
696 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
697 | || !data->valid) { | |
698 | ||
699 | for (i = 0; i <= data->maxins; i++) { | |
700 | data->in[i] = | |
17e7dc43 | 701 | sis5595_read_value(data, SIS5595_REG_IN(i)); |
1da177e4 | 702 | data->in_min[i] = |
17e7dc43 | 703 | sis5595_read_value(data, |
1da177e4 LT |
704 | SIS5595_REG_IN_MIN(i)); |
705 | data->in_max[i] = | |
17e7dc43 | 706 | sis5595_read_value(data, |
1da177e4 LT |
707 | SIS5595_REG_IN_MAX(i)); |
708 | } | |
709 | for (i = 0; i < 2; i++) { | |
710 | data->fan[i] = | |
17e7dc43 | 711 | sis5595_read_value(data, SIS5595_REG_FAN(i)); |
1da177e4 | 712 | data->fan_min[i] = |
17e7dc43 | 713 | sis5595_read_value(data, |
1da177e4 LT |
714 | SIS5595_REG_FAN_MIN(i)); |
715 | } | |
716 | if (data->maxins == 3) { | |
717 | data->temp = | |
17e7dc43 | 718 | sis5595_read_value(data, SIS5595_REG_TEMP); |
1da177e4 | 719 | data->temp_over = |
17e7dc43 | 720 | sis5595_read_value(data, SIS5595_REG_TEMP_OVER); |
1da177e4 | 721 | data->temp_hyst = |
17e7dc43 | 722 | sis5595_read_value(data, SIS5595_REG_TEMP_HYST); |
1da177e4 | 723 | } |
17e7dc43 | 724 | i = sis5595_read_value(data, SIS5595_REG_FANDIV); |
1da177e4 LT |
725 | data->fan_div[0] = (i >> 4) & 0x03; |
726 | data->fan_div[1] = i >> 6; | |
727 | data->alarms = | |
17e7dc43 JD |
728 | sis5595_read_value(data, SIS5595_REG_ALARM1) | |
729 | (sis5595_read_value(data, SIS5595_REG_ALARM2) << 8); | |
1da177e4 | 730 | data->last_updated = jiffies; |
952a11ca | 731 | data->valid = true; |
1da177e4 LT |
732 | } |
733 | ||
9a61bf63 | 734 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
735 | |
736 | return data; | |
737 | } | |
738 | ||
cd9bb056 | 739 | static const struct pci_device_id sis5595_pci_ids[] = { |
1da177e4 LT |
740 | { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) }, |
741 | { 0, } | |
742 | }; | |
743 | ||
744 | MODULE_DEVICE_TABLE(pci, sis5595_pci_ids); | |
745 | ||
a5977246 | 746 | static int blacklist[] = { |
1da177e4 LT |
747 | PCI_DEVICE_ID_SI_540, |
748 | PCI_DEVICE_ID_SI_550, | |
749 | PCI_DEVICE_ID_SI_630, | |
750 | PCI_DEVICE_ID_SI_645, | |
751 | PCI_DEVICE_ID_SI_730, | |
752 | PCI_DEVICE_ID_SI_735, | |
8fda79ec GR |
753 | PCI_DEVICE_ID_SI_5511, /* |
754 | * 5513 chip has the 0008 device but | |
755 | * that ID shows up in other chips so we | |
756 | * use the 5511 ID for recognition | |
757 | */ | |
1da177e4 LT |
758 | PCI_DEVICE_ID_SI_5597, |
759 | PCI_DEVICE_ID_SI_5598, | |
760 | 0 }; | |
761 | ||
6c931ae1 | 762 | static int sis5595_device_add(unsigned short address) |
17e7dc43 JD |
763 | { |
764 | struct resource res = { | |
765 | .start = address, | |
766 | .end = address + SIS5595_EXTENT - 1, | |
767 | .name = "sis5595", | |
768 | .flags = IORESOURCE_IO, | |
769 | }; | |
770 | int err; | |
771 | ||
b9acb64a JD |
772 | err = acpi_check_resource_conflict(&res); |
773 | if (err) | |
774 | goto exit; | |
775 | ||
17e7dc43 JD |
776 | pdev = platform_device_alloc("sis5595", address); |
777 | if (!pdev) { | |
778 | err = -ENOMEM; | |
4b2515db | 779 | pr_err("Device allocation failed\n"); |
17e7dc43 JD |
780 | goto exit; |
781 | } | |
782 | ||
783 | err = platform_device_add_resources(pdev, &res, 1); | |
784 | if (err) { | |
4b2515db | 785 | pr_err("Device resource addition failed (%d)\n", err); |
17e7dc43 JD |
786 | goto exit_device_put; |
787 | } | |
788 | ||
789 | err = platform_device_add(pdev); | |
790 | if (err) { | |
4b2515db | 791 | pr_err("Device addition failed (%d)\n", err); |
17e7dc43 JD |
792 | goto exit_device_put; |
793 | } | |
794 | ||
795 | return 0; | |
796 | ||
797 | exit_device_put: | |
798 | platform_device_put(pdev); | |
799 | exit: | |
800 | return err; | |
801 | } | |
802 | ||
6c931ae1 | 803 | static int sis5595_pci_probe(struct pci_dev *dev, |
1da177e4 LT |
804 | const struct pci_device_id *id) |
805 | { | |
17e7dc43 JD |
806 | u16 address; |
807 | u8 enable; | |
1da177e4 | 808 | int *i; |
1da177e4 LT |
809 | |
810 | for (i = blacklist; *i != 0; i++) { | |
5460a9d0 | 811 | struct pci_dev *d; |
8fda79ec GR |
812 | d = pci_get_device(PCI_VENDOR_ID_SI, *i, NULL); |
813 | if (d) { | |
814 | dev_err(&d->dev, | |
815 | "Looked for SIS5595 but found unsupported device %.4x\n", | |
816 | *i); | |
5460a9d0 | 817 | pci_dev_put(d); |
1da177e4 LT |
818 | return -ENODEV; |
819 | } | |
820 | } | |
8fda79ec | 821 | |
17e7dc43 JD |
822 | force_addr &= ~(SIS5595_EXTENT - 1); |
823 | if (force_addr) { | |
824 | dev_warn(&dev->dev, "Forcing ISA address 0x%x\n", force_addr); | |
825 | pci_write_config_word(dev, SIS5595_BASE_REG, force_addr); | |
826 | } | |
827 | ||
1da177e4 | 828 | if (PCIBIOS_SUCCESSFUL != |
17e7dc43 JD |
829 | pci_read_config_word(dev, SIS5595_BASE_REG, &address)) { |
830 | dev_err(&dev->dev, "Failed to read ISA address\n"); | |
1da177e4 | 831 | return -ENODEV; |
17e7dc43 | 832 | } |
8fda79ec | 833 | |
17e7dc43 JD |
834 | address &= ~(SIS5595_EXTENT - 1); |
835 | if (!address) { | |
8fda79ec GR |
836 | dev_err(&dev->dev, |
837 | "Base address not set - upgrade BIOS or use force_addr=0xaddr\n"); | |
1da177e4 | 838 | return -ENODEV; |
1da177e4 | 839 | } |
17e7dc43 JD |
840 | if (force_addr && address != force_addr) { |
841 | /* doesn't work for some chips? */ | |
842 | dev_err(&dev->dev, "Failed to force ISA address\n"); | |
843 | return -ENODEV; | |
844 | } | |
1da177e4 | 845 | |
17e7dc43 JD |
846 | if (PCIBIOS_SUCCESSFUL != |
847 | pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable)) { | |
848 | dev_err(&dev->dev, "Failed to read enable register\n"); | |
849 | return -ENODEV; | |
850 | } | |
851 | if (!(enable & 0x80)) { | |
852 | if ((PCIBIOS_SUCCESSFUL != | |
853 | pci_write_config_byte(dev, SIS5595_ENABLE_REG, | |
854 | enable | 0x80)) | |
855 | || (PCIBIOS_SUCCESSFUL != | |
856 | pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable)) | |
857 | || (!(enable & 0x80))) { | |
858 | /* doesn't work for some chips! */ | |
859 | dev_err(&dev->dev, "Failed to enable HWM device\n"); | |
860 | return -ENODEV; | |
861 | } | |
1da177e4 LT |
862 | } |
863 | ||
17e7dc43 JD |
864 | if (platform_driver_register(&sis5595_driver)) { |
865 | dev_dbg(&dev->dev, "Failed to register sis5595 driver\n"); | |
866 | goto exit; | |
867 | } | |
868 | ||
869 | s_bridge = pci_dev_get(dev); | |
870 | /* Sets global pdev as a side effect */ | |
871 | if (sis5595_device_add(address)) | |
872 | goto exit_unregister; | |
873 | ||
8fda79ec GR |
874 | /* |
875 | * Always return failure here. This is to allow other drivers to bind | |
1da177e4 LT |
876 | * to this pci device. We don't really want to have control over the |
877 | * pci device, we only wanted to read as few register values from it. | |
878 | */ | |
879 | return -ENODEV; | |
17e7dc43 JD |
880 | |
881 | exit_unregister: | |
882 | pci_dev_put(dev); | |
883 | platform_driver_unregister(&sis5595_driver); | |
884 | exit: | |
885 | return -ENODEV; | |
1da177e4 LT |
886 | } |
887 | ||
888 | static struct pci_driver sis5595_pci_driver = { | |
889 | .name = "sis5595", | |
890 | .id_table = sis5595_pci_ids, | |
891 | .probe = sis5595_pci_probe, | |
892 | }; | |
893 | ||
894 | static int __init sm_sis5595_init(void) | |
895 | { | |
896 | return pci_register_driver(&sis5595_pci_driver); | |
897 | } | |
898 | ||
899 | static void __exit sm_sis5595_exit(void) | |
900 | { | |
901 | pci_unregister_driver(&sis5595_pci_driver); | |
902 | if (s_bridge != NULL) { | |
17e7dc43 JD |
903 | platform_device_unregister(pdev); |
904 | platform_driver_unregister(&sis5595_driver); | |
1da177e4 LT |
905 | pci_dev_put(s_bridge); |
906 | s_bridge = NULL; | |
907 | } | |
908 | } | |
909 | ||
910 | MODULE_AUTHOR("Aurelien Jarno <aurelien@aurel32.net>"); | |
911 | MODULE_DESCRIPTION("SiS 5595 Sensor device"); | |
912 | MODULE_LICENSE("GPL"); | |
913 | ||
914 | module_init(sm_sis5595_init); | |
915 | module_exit(sm_sis5595_exit); |