diff options
author | Mika Westerberg <mika.westerberg@iki.fi> | 2009-11-29 09:58:38 -0500 |
---|---|---|
committer | Wim Van Sebroeck <wim@iguana.be> | 2010-03-06 10:12:03 -0500 |
commit | c90bf2aa94c08a0f48874f64ebdeb5fe973cf02e (patch) | |
tree | e78de295e1e68e937699a029b1818ff21c1c98b7 /drivers | |
parent | 64096c17417380d8a472d096645f4cbc9406c987 (diff) |
[WATCHDOG] ep93xx: implemented watchdog timer driver for TS-72xx SBCs
Technologic Systems TS-72xx SBCs have external glue logic
CPLD which includes watchdog timer. This driver implements
kernel support for that.
Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/watchdog/Kconfig | 11 | ||||
-rw-r--r-- | drivers/watchdog/Makefile | 1 | ||||
-rw-r--r-- | drivers/watchdog/ts72xx_wdt.c | 516 |
3 files changed, 528 insertions, 0 deletions
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 3da3f48720a7..1e48d4c45f86 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig | |||
@@ -289,6 +289,17 @@ config ADX_WATCHDOG | |||
289 | Say Y here if you want support for the watchdog timer on Avionic | 289 | Say Y here if you want support for the watchdog timer on Avionic |
290 | Design Xanthos boards. | 290 | Design Xanthos boards. |
291 | 291 | ||
292 | config TS72XX_WATCHDOG | ||
293 | tristate "TS-72XX SBC Watchdog" | ||
294 | depends on MACH_TS72XX | ||
295 | help | ||
296 | Technologic Systems TS-7200, TS-7250 and TS-7260 boards have | ||
297 | watchdog timer implemented in a external CPLD chip. Say Y here | ||
298 | if you want to support for the watchdog timer on TS-72XX boards. | ||
299 | |||
300 | To compile this driver as a module, choose M here: the | ||
301 | module will be called ts72xx_wdt. | ||
302 | |||
292 | # AVR32 Architecture | 303 | # AVR32 Architecture |
293 | 304 | ||
294 | config AT32AP700X_WDT | 305 | config AT32AP700X_WDT |
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index 475c61100069..2fd15947deb7 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile | |||
@@ -46,6 +46,7 @@ obj-$(CONFIG_COH901327_WATCHDOG) += coh901327_wdt.o | |||
46 | obj-$(CONFIG_STMP3XXX_WATCHDOG) += stmp3xxx_wdt.o | 46 | obj-$(CONFIG_STMP3XXX_WATCHDOG) += stmp3xxx_wdt.o |
47 | obj-$(CONFIG_NUC900_WATCHDOG) += nuc900_wdt.o | 47 | obj-$(CONFIG_NUC900_WATCHDOG) += nuc900_wdt.o |
48 | obj-$(CONFIG_ADX_WATCHDOG) += adx_wdt.o | 48 | obj-$(CONFIG_ADX_WATCHDOG) += adx_wdt.o |
49 | obj-$(CONFIG_TS72XX_WATCHDOG) += ts72xx_wdt.o | ||
49 | 50 | ||
50 | # AVR32 Architecture | 51 | # AVR32 Architecture |
51 | obj-$(CONFIG_AT32AP700X_WDT) += at32ap700x_wdt.o | 52 | obj-$(CONFIG_AT32AP700X_WDT) += at32ap700x_wdt.o |
diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c new file mode 100644 index 000000000000..c4a4d37f85af --- /dev/null +++ b/drivers/watchdog/ts72xx_wdt.c | |||
@@ -0,0 +1,516 @@ | |||
1 | /* | ||
2 | * Watchdog driver for Technologic Systems TS-72xx based SBCs | ||
3 | * (TS-7200, TS-7250 and TS-7260). These boards have external | ||
4 | * glue logic CPLD chip, which includes programmable watchdog | ||
5 | * timer. | ||
6 | * | ||
7 | * Copyright (c) 2009 Mika Westerberg <mika.westerberg@iki.fi> | ||
8 | * | ||
9 | * This driver is based on ep93xx_wdt and wm831x_wdt drivers. | ||
10 | * | ||
11 | * This file is licensed under the terms of the GNU General Public | ||
12 | * License version 2. This program is licensed "as is" without any | ||
13 | * warranty of any kind, whether express or implied. | ||
14 | */ | ||
15 | |||
16 | #include <linux/fs.h> | ||
17 | #include <linux/io.h> | ||
18 | #include <linux/module.h> | ||
19 | #include <linux/moduleparam.h> | ||
20 | #include <linux/miscdevice.h> | ||
21 | #include <linux/mutex.h> | ||
22 | #include <linux/platform_device.h> | ||
23 | #include <linux/watchdog.h> | ||
24 | #include <linux/uaccess.h> | ||
25 | |||
26 | #define TS72XX_WDT_FEED_VAL 0x05 | ||
27 | #define TS72XX_WDT_DEFAULT_TIMEOUT 8 | ||
28 | |||
29 | static int timeout = TS72XX_WDT_DEFAULT_TIMEOUT; | ||
30 | module_param(timeout, int, 0); | ||
31 | MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. " | ||
32 | "(1 <= timeout <= 8, default=" | ||
33 | __MODULE_STRING(TS72XX_WDT_DEFAULT_TIMEOUT) | ||
34 | ")"); | ||
35 | |||
36 | static int nowayout = WATCHDOG_NOWAYOUT; | ||
37 | module_param(nowayout, int, 0); | ||
38 | MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close"); | ||
39 | |||
40 | /** | ||
41 | * struct ts72xx_wdt - watchdog control structure | ||
42 | * @lock: lock that protects this structure | ||
43 | * @regval: watchdog timeout value suitable for control register | ||
44 | * @flags: flags controlling watchdog device state | ||
45 | * @control_reg: watchdog control register | ||
46 | * @feed_reg: watchdog feed register | ||
47 | * @pdev: back pointer to platform dev | ||
48 | */ | ||
49 | struct ts72xx_wdt { | ||
50 | struct mutex lock; | ||
51 | int regval; | ||
52 | |||
53 | #define TS72XX_WDT_BUSY_FLAG 1 | ||
54 | #define TS72XX_WDT_EXPECT_CLOSE_FLAG 2 | ||
55 | int flags; | ||
56 | |||
57 | void __iomem *control_reg; | ||
58 | void __iomem *feed_reg; | ||
59 | |||
60 | struct platform_device *pdev; | ||
61 | }; | ||
62 | |||
63 | struct platform_device *ts72xx_wdt_pdev; | ||
64 | |||
65 | /* | ||
66 | * TS-72xx Watchdog supports following timeouts (value written | ||
67 | * to control register): | ||
68 | * value description | ||
69 | * ------------------------- | ||
70 | * 0x00 watchdog disabled | ||
71 | * 0x01 250ms | ||
72 | * 0x02 500ms | ||
73 | * 0x03 1s | ||
74 | * 0x04 reserved | ||
75 | * 0x05 2s | ||
76 | * 0x06 4s | ||
77 | * 0x07 8s | ||
78 | * | ||
79 | * Timeouts below 1s are not very usable so we don't | ||
80 | * allow them at all. | ||
81 | * | ||
82 | * We provide two functions that convert between these: | ||
83 | * timeout_to_regval() and regval_to_timeout(). | ||
84 | */ | ||
85 | static const struct { | ||
86 | int timeout; | ||
87 | int regval; | ||
88 | } ts72xx_wdt_map[] = { | ||
89 | { 1, 3 }, | ||
90 | { 2, 5 }, | ||
91 | { 4, 6 }, | ||
92 | { 8, 7 }, | ||
93 | }; | ||
94 | |||
95 | /** | ||
96 | * timeout_to_regval() - converts given timeout to control register value | ||
97 | * @new_timeout: timeout in seconds to be converted | ||
98 | * | ||
99 | * Function converts given @new_timeout into valid value that can | ||
100 | * be programmed into watchdog control register. When conversion is | ||
101 | * not possible, function returns %-EINVAL. | ||
102 | */ | ||
103 | static int timeout_to_regval(int new_timeout) | ||
104 | { | ||
105 | int i; | ||
106 | |||
107 | /* first limit it to 1 - 8 seconds */ | ||
108 | new_timeout = clamp_val(new_timeout, 1, 8); | ||
109 | |||
110 | for (i = 0; i < ARRAY_SIZE(ts72xx_wdt_map); i++) { | ||
111 | if (ts72xx_wdt_map[i].timeout >= new_timeout) | ||
112 | return ts72xx_wdt_map[i].regval; | ||
113 | } | ||
114 | |||
115 | return -EINVAL; | ||
116 | } | ||
117 | |||
118 | /** | ||
119 | * regval_to_timeout() - converts control register value to timeout | ||
120 | * @regval: control register value to be converted | ||
121 | * | ||
122 | * Function converts given @regval to timeout in seconds (1, 2, 4 or 8). | ||
123 | * If @regval cannot be converted, function returns %-EINVAL. | ||
124 | */ | ||
125 | static int regval_to_timeout(int regval) | ||
126 | { | ||
127 | int i; | ||
128 | |||
129 | for (i = 0; i < ARRAY_SIZE(ts72xx_wdt_map); i++) { | ||
130 | if (ts72xx_wdt_map[i].regval == regval) | ||
131 | return ts72xx_wdt_map[i].timeout; | ||
132 | } | ||
133 | |||
134 | return -EINVAL; | ||
135 | } | ||
136 | |||
137 | /** | ||
138 | * ts72xx_wdt_kick() - kick the watchdog | ||
139 | * @wdt: watchdog to be kicked | ||
140 | * | ||
141 | * Called with @wdt->lock held. | ||
142 | */ | ||
143 | static inline void ts72xx_wdt_kick(struct ts72xx_wdt *wdt) | ||
144 | { | ||
145 | __raw_writeb(TS72XX_WDT_FEED_VAL, wdt->feed_reg); | ||
146 | } | ||
147 | |||
148 | /** | ||
149 | * ts72xx_wdt_start() - starts the watchdog timer | ||
150 | * @wdt: watchdog to be started | ||
151 | * | ||
152 | * This function programs timeout to watchdog timer | ||
153 | * and starts it. | ||
154 | * | ||
155 | * Called with @wdt->lock held. | ||
156 | */ | ||
157 | static void ts72xx_wdt_start(struct ts72xx_wdt *wdt) | ||
158 | { | ||
159 | /* | ||
160 | * To program the wdt, it first must be "fed" and | ||
161 | * only after that (within 30 usecs) the configuration | ||
162 | * can be changed. | ||
163 | */ | ||
164 | ts72xx_wdt_kick(wdt); | ||
165 | __raw_writeb((u8)wdt->regval, wdt->control_reg); | ||
166 | } | ||
167 | |||
168 | /** | ||
169 | * ts72xx_wdt_stop() - stops the watchdog timer | ||
170 | * @wdt: watchdog to be stopped | ||
171 | * | ||
172 | * Called with @wdt->lock held. | ||
173 | */ | ||
174 | static void ts72xx_wdt_stop(struct ts72xx_wdt *wdt) | ||
175 | { | ||
176 | ts72xx_wdt_kick(wdt); | ||
177 | __raw_writeb(0, wdt->control_reg); | ||
178 | } | ||
179 | |||
180 | static int ts72xx_wdt_open(struct inode *inode, struct file *file) | ||
181 | { | ||
182 | struct ts72xx_wdt *wdt = platform_get_drvdata(ts72xx_wdt_pdev); | ||
183 | int regval; | ||
184 | |||
185 | /* | ||
186 | * Try to convert default timeout to valid register | ||
187 | * value first. | ||
188 | */ | ||
189 | regval = timeout_to_regval(timeout); | ||
190 | if (regval < 0) { | ||
191 | dev_err(&wdt->pdev->dev, | ||
192 | "failed to convert timeout (%d) to register value\n", | ||
193 | timeout); | ||
194 | return -EINVAL; | ||
195 | } | ||
196 | |||
197 | if (mutex_lock_interruptible(&wdt->lock)) | ||
198 | return -ERESTARTSYS; | ||
199 | |||
200 | if ((wdt->flags & TS72XX_WDT_BUSY_FLAG) != 0) { | ||
201 | mutex_unlock(&wdt->lock); | ||
202 | return -EBUSY; | ||
203 | } | ||
204 | |||
205 | wdt->flags = TS72XX_WDT_BUSY_FLAG; | ||
206 | wdt->regval = regval; | ||
207 | file->private_data = wdt; | ||
208 | |||
209 | ts72xx_wdt_start(wdt); | ||
210 | |||
211 | mutex_unlock(&wdt->lock); | ||
212 | return nonseekable_open(inode, file); | ||
213 | } | ||
214 | |||
215 | static int ts72xx_wdt_release(struct inode *inode, struct file *file) | ||
216 | { | ||
217 | struct ts72xx_wdt *wdt = file->private_data; | ||
218 | |||
219 | if (mutex_lock_interruptible(&wdt->lock)) | ||
220 | return -ERESTARTSYS; | ||
221 | |||
222 | if ((wdt->flags & TS72XX_WDT_EXPECT_CLOSE_FLAG) != 0) { | ||
223 | ts72xx_wdt_stop(wdt); | ||
224 | } else { | ||
225 | dev_warn(&wdt->pdev->dev, | ||
226 | "TS-72XX WDT device closed unexpectly. " | ||
227 | "Watchdog timer will not stop!\n"); | ||
228 | /* | ||
229 | * Kick it one more time, to give userland some time | ||
230 | * to recover (for example, respawning the kicker | ||
231 | * daemon). | ||
232 | */ | ||
233 | ts72xx_wdt_kick(wdt); | ||
234 | } | ||
235 | |||
236 | wdt->flags = 0; | ||
237 | |||
238 | mutex_unlock(&wdt->lock); | ||
239 | return 0; | ||
240 | } | ||
241 | |||
242 | static ssize_t ts72xx_wdt_write(struct file *file, | ||
243 | const char __user *data, | ||
244 | size_t len, | ||
245 | loff_t *ppos) | ||
246 | { | ||
247 | struct ts72xx_wdt *wdt = file->private_data; | ||
248 | |||
249 | if (!len) | ||
250 | return 0; | ||
251 | |||
252 | if (mutex_lock_interruptible(&wdt->lock)) | ||
253 | return -ERESTARTSYS; | ||
254 | |||
255 | ts72xx_wdt_kick(wdt); | ||
256 | |||
257 | /* | ||
258 | * Support for magic character closing. User process | ||
259 | * writes 'V' into the device, just before it is closed. | ||
260 | * This means that we know that the wdt timer can be | ||
261 | * stopped after user closes the device. | ||
262 | */ | ||
263 | if (!nowayout) { | ||
264 | int i; | ||
265 | |||
266 | for (i = 0; i < len; i++) { | ||
267 | char c; | ||
268 | |||
269 | /* In case it was set long ago */ | ||
270 | wdt->flags &= ~TS72XX_WDT_EXPECT_CLOSE_FLAG; | ||
271 | |||
272 | if (get_user(c, data + i)) { | ||
273 | mutex_unlock(&wdt->lock); | ||
274 | return -EFAULT; | ||
275 | } | ||
276 | if (c == 'V') { | ||
277 | wdt->flags |= TS72XX_WDT_EXPECT_CLOSE_FLAG; | ||
278 | break; | ||
279 | } | ||
280 | } | ||
281 | } | ||
282 | |||
283 | mutex_unlock(&wdt->lock); | ||
284 | return len; | ||
285 | } | ||
286 | |||
287 | static const struct watchdog_info winfo = { | ||
288 | .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | | ||
289 | WDIOF_MAGICCLOSE, | ||
290 | .firmware_version = 1, | ||
291 | .identity = "TS-72XX WDT", | ||
292 | }; | ||
293 | |||
294 | static long ts72xx_wdt_ioctl(struct file *file, unsigned int cmd, | ||
295 | unsigned long arg) | ||
296 | { | ||
297 | struct ts72xx_wdt *wdt = file->private_data; | ||
298 | void __user *argp = (void __user *)arg; | ||
299 | int __user *p = (int __user *)argp; | ||
300 | int error = 0; | ||
301 | |||
302 | if (mutex_lock_interruptible(&wdt->lock)) | ||
303 | return -ERESTARTSYS; | ||
304 | |||
305 | switch (cmd) { | ||
306 | case WDIOC_GETSUPPORT: | ||
307 | error = copy_to_user(argp, &winfo, sizeof(winfo)); | ||
308 | break; | ||
309 | |||
310 | case WDIOC_KEEPALIVE: | ||
311 | ts72xx_wdt_kick(wdt); | ||
312 | break; | ||
313 | |||
314 | case WDIOC_SETOPTIONS: { | ||
315 | int options; | ||
316 | |||
317 | if (get_user(options, p)) { | ||
318 | error = -EFAULT; | ||
319 | break; | ||
320 | } | ||
321 | |||
322 | error = -EINVAL; | ||
323 | |||
324 | if ((options & WDIOS_DISABLECARD) != 0) { | ||
325 | ts72xx_wdt_stop(wdt); | ||
326 | error = 0; | ||
327 | } | ||
328 | if ((options & WDIOS_ENABLECARD) != 0) { | ||
329 | ts72xx_wdt_start(wdt); | ||
330 | error = 0; | ||
331 | } | ||
332 | |||
333 | break; | ||
334 | } | ||
335 | |||
336 | case WDIOC_SETTIMEOUT: { | ||
337 | int new_timeout; | ||
338 | |||
339 | if (get_user(new_timeout, p)) { | ||
340 | error = -EFAULT; | ||
341 | } else { | ||
342 | int regval; | ||
343 | |||
344 | regval = timeout_to_regval(new_timeout); | ||
345 | if (regval < 0) { | ||
346 | error = -EINVAL; | ||
347 | } else { | ||
348 | ts72xx_wdt_stop(wdt); | ||
349 | wdt->regval = regval; | ||
350 | ts72xx_wdt_start(wdt); | ||
351 | } | ||
352 | } | ||
353 | if (error) | ||
354 | break; | ||
355 | |||
356 | /*FALLTHROUGH*/ | ||
357 | } | ||
358 | |||
359 | case WDIOC_GETTIMEOUT: | ||
360 | if (put_user(regval_to_timeout(wdt->regval), p)) | ||
361 | error = -EFAULT; | ||
362 | break; | ||
363 | |||
364 | default: | ||
365 | error = -ENOTTY; | ||
366 | break; | ||
367 | } | ||
368 | |||
369 | mutex_unlock(&wdt->lock); | ||
370 | return error; | ||
371 | } | ||
372 | |||
373 | static const struct file_operations ts72xx_wdt_fops = { | ||
374 | .owner = THIS_MODULE, | ||
375 | .llseek = no_llseek, | ||
376 | .open = ts72xx_wdt_open, | ||
377 | .release = ts72xx_wdt_release, | ||
378 | .write = ts72xx_wdt_write, | ||
379 | .unlocked_ioctl = ts72xx_wdt_ioctl, | ||
380 | }; | ||
381 | |||
382 | static struct miscdevice ts72xx_wdt_miscdev = { | ||
383 | .minor = WATCHDOG_MINOR, | ||
384 | .name = "watchdog", | ||
385 | .fops = &ts72xx_wdt_fops, | ||
386 | }; | ||
387 | |||
388 | static __devinit int ts72xx_wdt_probe(struct platform_device *pdev) | ||
389 | { | ||
390 | struct ts72xx_wdt *wdt; | ||
391 | struct resource *r1, *r2; | ||
392 | int error = 0; | ||
393 | |||
394 | wdt = kzalloc(sizeof(struct ts72xx_wdt), GFP_KERNEL); | ||
395 | if (!wdt) { | ||
396 | dev_err(&pdev->dev, "failed to allocate memory\n"); | ||
397 | return -ENOMEM; | ||
398 | } | ||
399 | |||
400 | r1 = platform_get_resource(pdev, IORESOURCE_MEM, 0); | ||
401 | if (!r1) { | ||
402 | dev_err(&pdev->dev, "failed to get memory resource\n"); | ||
403 | error = -ENODEV; | ||
404 | goto fail; | ||
405 | } | ||
406 | |||
407 | r1 = request_mem_region(r1->start, resource_size(r1), pdev->name); | ||
408 | if (!r1) { | ||
409 | dev_err(&pdev->dev, "cannot request memory region\n"); | ||
410 | error = -EBUSY; | ||
411 | goto fail; | ||
412 | } | ||
413 | |||
414 | wdt->control_reg = ioremap(r1->start, resource_size(r1)); | ||
415 | if (!wdt->control_reg) { | ||
416 | dev_err(&pdev->dev, "failed to map memory\n"); | ||
417 | error = -ENODEV; | ||
418 | goto fail_free_control; | ||
419 | } | ||
420 | |||
421 | r2 = platform_get_resource(pdev, IORESOURCE_MEM, 1); | ||
422 | if (!r2) { | ||
423 | dev_err(&pdev->dev, "failed to get memory resource\n"); | ||
424 | error = -ENODEV; | ||
425 | goto fail_unmap_control; | ||
426 | } | ||
427 | |||
428 | r2 = request_mem_region(r2->start, resource_size(r2), pdev->name); | ||
429 | if (!r2) { | ||
430 | dev_err(&pdev->dev, "cannot request memory region\n"); | ||
431 | error = -EBUSY; | ||
432 | goto fail_unmap_control; | ||
433 | } | ||
434 | |||
435 | wdt->feed_reg = ioremap(r2->start, resource_size(r2)); | ||
436 | if (!wdt->feed_reg) { | ||
437 | dev_err(&pdev->dev, "failed to map memory\n"); | ||
438 | error = -ENODEV; | ||
439 | goto fail_free_feed; | ||
440 | } | ||
441 | |||
442 | platform_set_drvdata(pdev, wdt); | ||
443 | ts72xx_wdt_pdev = pdev; | ||
444 | wdt->pdev = pdev; | ||
445 | mutex_init(&wdt->lock); | ||
446 | |||
447 | error = misc_register(&ts72xx_wdt_miscdev); | ||
448 | if (error) { | ||
449 | dev_err(&pdev->dev, "failed to register miscdev\n"); | ||
450 | goto fail_unmap_feed; | ||
451 | } | ||
452 | |||
453 | dev_info(&pdev->dev, "TS-72xx Watchdog driver\n"); | ||
454 | |||
455 | return 0; | ||
456 | |||
457 | fail_unmap_feed: | ||
458 | platform_set_drvdata(pdev, NULL); | ||
459 | iounmap(wdt->feed_reg); | ||
460 | fail_free_feed: | ||
461 | release_mem_region(r2->start, resource_size(r2)); | ||
462 | fail_unmap_control: | ||
463 | iounmap(wdt->control_reg); | ||
464 | fail_free_control: | ||
465 | release_mem_region(r1->start, resource_size(r1)); | ||
466 | fail: | ||
467 | kfree(wdt); | ||
468 | return error; | ||
469 | } | ||
470 | |||
471 | static __devexit int ts72xx_wdt_remove(struct platform_device *pdev) | ||
472 | { | ||
473 | struct ts72xx_wdt *wdt = platform_get_drvdata(pdev); | ||
474 | struct resource *res; | ||
475 | int error; | ||
476 | |||
477 | error = misc_deregister(&ts72xx_wdt_miscdev); | ||
478 | platform_set_drvdata(pdev, NULL); | ||
479 | |||
480 | iounmap(wdt->control_reg); | ||
481 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | ||
482 | release_mem_region(res->start, resource_size(res)); | ||
483 | |||
484 | iounmap(wdt->feed_reg); | ||
485 | res = platform_get_resource(pdev, IORESOURCE_MEM, 1); | ||
486 | release_mem_region(res->start, resource_size(res)); | ||
487 | |||
488 | kfree(wdt); | ||
489 | return error; | ||
490 | } | ||
491 | |||
492 | static struct platform_driver ts72xx_wdt_driver = { | ||
493 | .probe = ts72xx_wdt_probe, | ||
494 | .remove = __devexit_p(ts72xx_wdt_remove), | ||
495 | .driver = { | ||
496 | .name = "ts72xx-wdt", | ||
497 | .owner = THIS_MODULE, | ||
498 | }, | ||
499 | }; | ||
500 | |||
501 | static __init int ts72xx_wdt_init(void) | ||
502 | { | ||
503 | return platform_driver_register(&ts72xx_wdt_driver); | ||
504 | } | ||
505 | module_init(ts72xx_wdt_init); | ||
506 | |||
507 | static __exit void ts72xx_wdt_exit(void) | ||
508 | { | ||
509 | platform_driver_unregister(&ts72xx_wdt_driver); | ||
510 | } | ||
511 | module_exit(ts72xx_wdt_exit); | ||
512 | |||
513 | MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>"); | ||
514 | MODULE_DESCRIPTION("TS-72xx SBC Watchdog"); | ||
515 | MODULE_LICENSE("GPL"); | ||
516 | MODULE_ALIAS("platform:ts72xx-wdt"); | ||