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1 | /* |
2 | * ST M48T59 RTC driver |
3 | * |
4 | * Copyright (c) 2007 Wind River Systems, Inc. |
5 | * |
6 | * Author: Mark Zhan <rongkai.zhan@windriver.com> |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License version 2 as |
10 | * published by the Free Software Foundation. |
11 | */ |
12 | |
13 | #include <linux/kernel.h> |
14 | #include <linux/module.h> |
15 | #include <linux/init.h> |
16 | #include <linux/io.h> |
17 | #include <linux/device.h> |
18 | #include <linux/platform_device.h> |
19 | #include <linux/rtc.h> |
20 | #include <linux/rtc/m48t59.h> |
21 | #include <linux/bcd.h> |
22 | #include <linux/slab.h> |
23 | |
24 | #ifndef NO_IRQ |
25 | #define NO_IRQ (-1) |
26 | #endif |
27 | |
28 | #define M48T59_READ(reg) (pdata->read_byte(dev, pdata->offset + reg)) |
29 | #define M48T59_WRITE(val, reg) \ |
30 | (pdata->write_byte(dev, pdata->offset + reg, val)) |
31 | |
32 | #define M48T59_SET_BITS(mask, reg) \ |
33 | M48T59_WRITE((M48T59_READ(reg) | (mask)), (reg)) |
34 | #define M48T59_CLEAR_BITS(mask, reg) \ |
35 | M48T59_WRITE((M48T59_READ(reg) & ~(mask)), (reg)) |
36 | |
37 | struct m48t59_private { |
38 | void __iomem *ioaddr; |
39 | int irq; |
40 | struct rtc_device *rtc; |
41 | spinlock_t lock; /* serialize the NVRAM and RTC access */ |
42 | }; |
43 | |
44 | /* |
45 | * This is the generic access method when the chip is memory-mapped |
46 | */ |
47 | static void |
48 | m48t59_mem_writeb(struct device *dev, u32 ofs, u8 val) |
49 | { |
50 | struct platform_device *pdev = to_platform_device(dev); |
51 | struct m48t59_private *m48t59 = platform_get_drvdata(pdev); |
52 | |
53 | writeb(val, m48t59->ioaddr+ofs); |
54 | } |
55 | |
56 | static u8 |
57 | m48t59_mem_readb(struct device *dev, u32 ofs) |
58 | { |
59 | struct platform_device *pdev = to_platform_device(dev); |
60 | struct m48t59_private *m48t59 = platform_get_drvdata(pdev); |
61 | |
62 | return readb(m48t59->ioaddr+ofs); |
63 | } |
64 | |
65 | /* |
66 | * NOTE: M48T59 only uses BCD mode |
67 | */ |
68 | static int m48t59_rtc_read_time(struct device *dev, struct rtc_time *tm) |
69 | { |
70 | struct platform_device *pdev = to_platform_device(dev); |
71 | struct m48t59_plat_data *pdata = pdev->dev.platform_data; |
72 | struct m48t59_private *m48t59 = platform_get_drvdata(pdev); |
73 | unsigned long flags; |
74 | u8 val; |
75 | |
76 | spin_lock_irqsave(&m48t59->lock, flags); |
77 | /* Issue the READ command */ |
78 | M48T59_SET_BITS(M48T59_CNTL_READ, M48T59_CNTL); |
79 | |
80 | tm->tm_year = bcd2bin(M48T59_READ(M48T59_YEAR)); |
81 | /* tm_mon is 0-11 */ |
82 | tm->tm_mon = bcd2bin(M48T59_READ(M48T59_MONTH)) - 1; |
83 | tm->tm_mday = bcd2bin(M48T59_READ(M48T59_MDAY)); |
84 | |
85 | val = M48T59_READ(M48T59_WDAY); |
86 | if ((pdata->type == M48T59RTC_TYPE_M48T59) && |
87 | (val & M48T59_WDAY_CEB) && (val & M48T59_WDAY_CB)) { |
88 | dev_dbg(dev, "Century bit is enabled\n"); |
89 | tm->tm_year += 100; /* one century */ |
90 | } |
91 | #ifdef CONFIG_SPARC |
92 | /* Sun SPARC machines count years since 1968 */ |
93 | tm->tm_year += 68; |
94 | #endif |
95 | |
96 | tm->tm_wday = bcd2bin(val & 0x07); |
97 | tm->tm_hour = bcd2bin(M48T59_READ(M48T59_HOUR) & 0x3F); |
98 | tm->tm_min = bcd2bin(M48T59_READ(M48T59_MIN) & 0x7F); |
99 | tm->tm_sec = bcd2bin(M48T59_READ(M48T59_SEC) & 0x7F); |
100 | |
101 | /* Clear the READ bit */ |
102 | M48T59_CLEAR_BITS(M48T59_CNTL_READ, M48T59_CNTL); |
103 | spin_unlock_irqrestore(&m48t59->lock, flags); |
104 | |
105 | dev_dbg(dev, "RTC read time %04d-%02d-%02d %02d/%02d/%02d\n", |
106 | tm->tm_year + 1900, tm->tm_mon, tm->tm_mday, |
107 | tm->tm_hour, tm->tm_min, tm->tm_sec); |
108 | return rtc_valid_tm(tm); |
109 | } |
110 | |
111 | static int m48t59_rtc_set_time(struct device *dev, struct rtc_time *tm) |
112 | { |
113 | struct platform_device *pdev = to_platform_device(dev); |
114 | struct m48t59_plat_data *pdata = pdev->dev.platform_data; |
115 | struct m48t59_private *m48t59 = platform_get_drvdata(pdev); |
116 | unsigned long flags; |
117 | u8 val = 0; |
118 | int year = tm->tm_year; |
119 | |
120 | #ifdef CONFIG_SPARC |
121 | /* Sun SPARC machines count years since 1968 */ |
122 | year -= 68; |
123 | #endif |
124 | |
125 | dev_dbg(dev, "RTC set time %04d-%02d-%02d %02d/%02d/%02d\n", |
126 | year + 1900, tm->tm_mon, tm->tm_mday, |
127 | tm->tm_hour, tm->tm_min, tm->tm_sec); |
128 | |
129 | if (year < 0) |
130 | return -EINVAL; |
131 | |
132 | spin_lock_irqsave(&m48t59->lock, flags); |
133 | /* Issue the WRITE command */ |
134 | M48T59_SET_BITS(M48T59_CNTL_WRITE, M48T59_CNTL); |
135 | |
136 | M48T59_WRITE((bin2bcd(tm->tm_sec) & 0x7F), M48T59_SEC); |
137 | M48T59_WRITE((bin2bcd(tm->tm_min) & 0x7F), M48T59_MIN); |
138 | M48T59_WRITE((bin2bcd(tm->tm_hour) & 0x3F), M48T59_HOUR); |
139 | M48T59_WRITE((bin2bcd(tm->tm_mday) & 0x3F), M48T59_MDAY); |
140 | /* tm_mon is 0-11 */ |
141 | M48T59_WRITE((bin2bcd(tm->tm_mon + 1) & 0x1F), M48T59_MONTH); |
142 | M48T59_WRITE(bin2bcd(year % 100), M48T59_YEAR); |
143 | |
144 | if (pdata->type == M48T59RTC_TYPE_M48T59 && (year / 100)) |
145 | val = (M48T59_WDAY_CEB | M48T59_WDAY_CB); |
146 | val |= (bin2bcd(tm->tm_wday) & 0x07); |
147 | M48T59_WRITE(val, M48T59_WDAY); |
148 | |
149 | /* Clear the WRITE bit */ |
150 | M48T59_CLEAR_BITS(M48T59_CNTL_WRITE, M48T59_CNTL); |
151 | spin_unlock_irqrestore(&m48t59->lock, flags); |
152 | return 0; |
153 | } |
154 | |
155 | /* |
156 | * Read alarm time and date in RTC |
157 | */ |
158 | static int m48t59_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm) |
159 | { |
160 | struct platform_device *pdev = to_platform_device(dev); |
161 | struct m48t59_plat_data *pdata = pdev->dev.platform_data; |
162 | struct m48t59_private *m48t59 = platform_get_drvdata(pdev); |
163 | struct rtc_time *tm = &alrm->time; |
164 | unsigned long flags; |
165 | u8 val; |
166 | |
167 | /* If no irq, we don't support ALARM */ |
168 | if (m48t59->irq == NO_IRQ) |
169 | return -EIO; |
170 | |
171 | spin_lock_irqsave(&m48t59->lock, flags); |
172 | /* Issue the READ command */ |
173 | M48T59_SET_BITS(M48T59_CNTL_READ, M48T59_CNTL); |
174 | |
175 | tm->tm_year = bcd2bin(M48T59_READ(M48T59_YEAR)); |
176 | #ifdef CONFIG_SPARC |
177 | /* Sun SPARC machines count years since 1968 */ |
178 | tm->tm_year += 68; |
179 | #endif |
180 | /* tm_mon is 0-11 */ |
181 | tm->tm_mon = bcd2bin(M48T59_READ(M48T59_MONTH)) - 1; |
182 | |
183 | val = M48T59_READ(M48T59_WDAY); |
184 | if ((val & M48T59_WDAY_CEB) && (val & M48T59_WDAY_CB)) |
185 | tm->tm_year += 100; /* one century */ |
186 | |
187 | tm->tm_mday = bcd2bin(M48T59_READ(M48T59_ALARM_DATE)); |
188 | tm->tm_hour = bcd2bin(M48T59_READ(M48T59_ALARM_HOUR)); |
189 | tm->tm_min = bcd2bin(M48T59_READ(M48T59_ALARM_MIN)); |
190 | tm->tm_sec = bcd2bin(M48T59_READ(M48T59_ALARM_SEC)); |
191 | |
192 | /* Clear the READ bit */ |
193 | M48T59_CLEAR_BITS(M48T59_CNTL_READ, M48T59_CNTL); |
194 | spin_unlock_irqrestore(&m48t59->lock, flags); |
195 | |
196 | dev_dbg(dev, "RTC read alarm time %04d-%02d-%02d %02d/%02d/%02d\n", |
197 | tm->tm_year + 1900, tm->tm_mon, tm->tm_mday, |
198 | tm->tm_hour, tm->tm_min, tm->tm_sec); |
199 | return rtc_valid_tm(tm); |
200 | } |
201 | |
202 | /* |
203 | * Set alarm time and date in RTC |
204 | */ |
205 | static int m48t59_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) |
206 | { |
207 | struct platform_device *pdev = to_platform_device(dev); |
208 | struct m48t59_plat_data *pdata = pdev->dev.platform_data; |
209 | struct m48t59_private *m48t59 = platform_get_drvdata(pdev); |
210 | struct rtc_time *tm = &alrm->time; |
211 | u8 mday, hour, min, sec; |
212 | unsigned long flags; |
213 | int year = tm->tm_year; |
214 | |
215 | #ifdef CONFIG_SPARC |
216 | /* Sun SPARC machines count years since 1968 */ |
217 | year -= 68; |
218 | #endif |
219 | |
220 | /* If no irq, we don't support ALARM */ |
221 | if (m48t59->irq == NO_IRQ) |
222 | return -EIO; |
223 | |
224 | if (year < 0) |
225 | return -EINVAL; |
226 | |
227 | /* |
228 | * 0xff means "always match" |
229 | */ |
230 | mday = tm->tm_mday; |
231 | mday = (mday >= 1 && mday <= 31) ? bin2bcd(mday) : 0xff; |
232 | if (mday == 0xff) |
233 | mday = M48T59_READ(M48T59_MDAY); |
234 | |
235 | hour = tm->tm_hour; |
236 | hour = (hour < 24) ? bin2bcd(hour) : 0x00; |
237 | |
238 | min = tm->tm_min; |
239 | min = (min < 60) ? bin2bcd(min) : 0x00; |
240 | |
241 | sec = tm->tm_sec; |
242 | sec = (sec < 60) ? bin2bcd(sec) : 0x00; |
243 | |
244 | spin_lock_irqsave(&m48t59->lock, flags); |
245 | /* Issue the WRITE command */ |
246 | M48T59_SET_BITS(M48T59_CNTL_WRITE, M48T59_CNTL); |
247 | |
248 | M48T59_WRITE(mday, M48T59_ALARM_DATE); |
249 | M48T59_WRITE(hour, M48T59_ALARM_HOUR); |
250 | M48T59_WRITE(min, M48T59_ALARM_MIN); |
251 | M48T59_WRITE(sec, M48T59_ALARM_SEC); |
252 | |
253 | /* Clear the WRITE bit */ |
254 | M48T59_CLEAR_BITS(M48T59_CNTL_WRITE, M48T59_CNTL); |
255 | spin_unlock_irqrestore(&m48t59->lock, flags); |
256 | |
257 | dev_dbg(dev, "RTC set alarm time %04d-%02d-%02d %02d/%02d/%02d\n", |
258 | year + 1900, tm->tm_mon, tm->tm_mday, |
259 | tm->tm_hour, tm->tm_min, tm->tm_sec); |
260 | return 0; |
261 | } |
262 | |
263 | /* |
264 | * Handle commands from user-space |
265 | */ |
266 | static int m48t59_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) |
267 | { |
268 | struct platform_device *pdev = to_platform_device(dev); |
269 | struct m48t59_plat_data *pdata = pdev->dev.platform_data; |
270 | struct m48t59_private *m48t59 = platform_get_drvdata(pdev); |
271 | unsigned long flags; |
272 | |
273 | spin_lock_irqsave(&m48t59->lock, flags); |
274 | if (enabled) |
275 | M48T59_WRITE(M48T59_INTR_AFE, M48T59_INTR); |
276 | else |
277 | M48T59_WRITE(0x00, M48T59_INTR); |
278 | spin_unlock_irqrestore(&m48t59->lock, flags); |
279 | |
280 | return 0; |
281 | } |
282 | |
283 | static int m48t59_rtc_proc(struct device *dev, struct seq_file *seq) |
284 | { |
285 | struct platform_device *pdev = to_platform_device(dev); |
286 | struct m48t59_plat_data *pdata = pdev->dev.platform_data; |
287 | struct m48t59_private *m48t59 = platform_get_drvdata(pdev); |
288 | unsigned long flags; |
289 | u8 val; |
290 | |
291 | spin_lock_irqsave(&m48t59->lock, flags); |
292 | val = M48T59_READ(M48T59_FLAGS); |
293 | spin_unlock_irqrestore(&m48t59->lock, flags); |
294 | |
295 | seq_printf(seq, "battery\t\t: %s\n", |
296 | (val & M48T59_FLAGS_BF) ? "low" : "normal"); |
297 | return 0; |
298 | } |
299 | |
300 | /* |
301 | * IRQ handler for the RTC |
302 | */ |
303 | static irqreturn_t m48t59_rtc_interrupt(int irq, void *dev_id) |
304 | { |
305 | struct device *dev = (struct device *)dev_id; |
306 | struct platform_device *pdev = to_platform_device(dev); |
307 | struct m48t59_plat_data *pdata = pdev->dev.platform_data; |
308 | struct m48t59_private *m48t59 = platform_get_drvdata(pdev); |
309 | u8 event; |
310 | |
311 | spin_lock(&m48t59->lock); |
312 | event = M48T59_READ(M48T59_FLAGS); |
313 | spin_unlock(&m48t59->lock); |
314 | |
315 | if (event & M48T59_FLAGS_AF) { |
316 | rtc_update_irq(m48t59->rtc, 1, (RTC_AF | RTC_IRQF)); |
317 | return IRQ_HANDLED; |
318 | } |
319 | |
320 | return IRQ_NONE; |
321 | } |
322 | |
323 | static const struct rtc_class_ops m48t59_rtc_ops = { |
324 | .read_time = m48t59_rtc_read_time, |
325 | .set_time = m48t59_rtc_set_time, |
326 | .read_alarm = m48t59_rtc_readalarm, |
327 | .set_alarm = m48t59_rtc_setalarm, |
328 | .proc = m48t59_rtc_proc, |
329 | .alarm_irq_enable = m48t59_rtc_alarm_irq_enable, |
330 | }; |
331 | |
332 | static const struct rtc_class_ops m48t02_rtc_ops = { |
333 | .read_time = m48t59_rtc_read_time, |
334 | .set_time = m48t59_rtc_set_time, |
335 | }; |
336 | |
337 | static ssize_t m48t59_nvram_read(struct file *filp, struct kobject *kobj, |
338 | struct bin_attribute *bin_attr, |
339 | char *buf, loff_t pos, size_t size) |
340 | { |
341 | struct device *dev = container_of(kobj, struct device, kobj); |
342 | struct platform_device *pdev = to_platform_device(dev); |
343 | struct m48t59_plat_data *pdata = pdev->dev.platform_data; |
344 | struct m48t59_private *m48t59 = platform_get_drvdata(pdev); |
345 | ssize_t cnt = 0; |
346 | unsigned long flags; |
347 | |
348 | for (; size > 0 && pos < pdata->offset; cnt++, size--) { |
349 | spin_lock_irqsave(&m48t59->lock, flags); |
350 | *buf++ = M48T59_READ(cnt); |
351 | spin_unlock_irqrestore(&m48t59->lock, flags); |
352 | } |
353 | |
354 | return cnt; |
355 | } |
356 | |
357 | static ssize_t m48t59_nvram_write(struct file *filp, struct kobject *kobj, |
358 | struct bin_attribute *bin_attr, |
359 | char *buf, loff_t pos, size_t size) |
360 | { |
361 | struct device *dev = container_of(kobj, struct device, kobj); |
362 | struct platform_device *pdev = to_platform_device(dev); |
363 | struct m48t59_plat_data *pdata = pdev->dev.platform_data; |
364 | struct m48t59_private *m48t59 = platform_get_drvdata(pdev); |
365 | ssize_t cnt = 0; |
366 | unsigned long flags; |
367 | |
368 | for (; size > 0 && pos < pdata->offset; cnt++, size--) { |
369 | spin_lock_irqsave(&m48t59->lock, flags); |
370 | M48T59_WRITE(*buf++, cnt); |
371 | spin_unlock_irqrestore(&m48t59->lock, flags); |
372 | } |
373 | |
374 | return cnt; |
375 | } |
376 | |
377 | static struct bin_attribute m48t59_nvram_attr = { |
378 | .attr = { |
379 | .name = "nvram", |
380 | .mode = S_IRUGO | S_IWUSR, |
381 | }, |
382 | .read = m48t59_nvram_read, |
383 | .write = m48t59_nvram_write, |
384 | }; |
385 | |
386 | static int m48t59_rtc_probe(struct platform_device *pdev) |
387 | { |
388 | struct m48t59_plat_data *pdata = pdev->dev.platform_data; |
389 | struct m48t59_private *m48t59 = NULL; |
390 | struct resource *res; |
391 | int ret = -ENOMEM; |
392 | char *name; |
393 | const struct rtc_class_ops *ops; |
394 | |
395 | /* This chip could be memory-mapped or I/O-mapped */ |
396 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
397 | if (!res) { |
398 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
399 | if (!res) |
400 | return -EINVAL; |
401 | } |
402 | |
403 | if (res->flags & IORESOURCE_IO) { |
404 | /* If we are I/O-mapped, the platform should provide |
405 | * the operations accessing chip registers. |
406 | */ |
407 | if (!pdata || !pdata->write_byte || !pdata->read_byte) |
408 | return -EINVAL; |
409 | } else if (res->flags & IORESOURCE_MEM) { |
410 | /* we are memory-mapped */ |
411 | if (!pdata) { |
412 | pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); |
413 | if (!pdata) |
414 | return -ENOMEM; |
415 | /* Ensure we only kmalloc platform data once */ |
416 | pdev->dev.platform_data = pdata; |
417 | } |
418 | if (!pdata->type) |
419 | pdata->type = M48T59RTC_TYPE_M48T59; |
420 | |
421 | /* Try to use the generic memory read/write ops */ |
422 | if (!pdata->write_byte) |
423 | pdata->write_byte = m48t59_mem_writeb; |
424 | if (!pdata->read_byte) |
425 | pdata->read_byte = m48t59_mem_readb; |
426 | } |
427 | |
428 | m48t59 = kzalloc(sizeof(*m48t59), GFP_KERNEL); |
429 | if (!m48t59) |
430 | return -ENOMEM; |
431 | |
432 | m48t59->ioaddr = pdata->ioaddr; |
433 | |
434 | if (!m48t59->ioaddr) { |
435 | /* ioaddr not mapped externally */ |
436 | m48t59->ioaddr = ioremap(res->start, resource_size(res)); |
437 | if (!m48t59->ioaddr) |
438 | goto out; |
439 | } |
440 | |
441 | /* Try to get irq number. We also can work in |
442 | * the mode without IRQ. |
443 | */ |
444 | m48t59->irq = platform_get_irq(pdev, 0); |
445 | if (m48t59->irq <= 0) |
446 | m48t59->irq = NO_IRQ; |
447 | |
448 | if (m48t59->irq != NO_IRQ) { |
449 | ret = request_irq(m48t59->irq, m48t59_rtc_interrupt, |
450 | IRQF_SHARED, "rtc-m48t59", &pdev->dev); |
451 | if (ret) |
452 | goto out; |
453 | } |
454 | switch (pdata->type) { |
455 | case M48T59RTC_TYPE_M48T59: |
456 | name = "m48t59"; |
457 | ops = &m48t59_rtc_ops; |
458 | pdata->offset = 0x1ff0; |
459 | break; |
460 | case M48T59RTC_TYPE_M48T02: |
461 | name = "m48t02"; |
462 | ops = &m48t02_rtc_ops; |
463 | pdata->offset = 0x7f0; |
464 | break; |
465 | case M48T59RTC_TYPE_M48T08: |
466 | name = "m48t08"; |
467 | ops = &m48t02_rtc_ops; |
468 | pdata->offset = 0x1ff0; |
469 | break; |
470 | default: |
471 | dev_err(&pdev->dev, "Unknown RTC type\n"); |
472 | ret = -ENODEV; |
473 | goto out; |
474 | } |
475 | |
476 | spin_lock_init(&m48t59->lock); |
477 | platform_set_drvdata(pdev, m48t59); |
478 | |
479 | m48t59->rtc = rtc_device_register(name, &pdev->dev, ops, THIS_MODULE); |
480 | if (IS_ERR(m48t59->rtc)) { |
481 | ret = PTR_ERR(m48t59->rtc); |
482 | goto out; |
483 | } |
484 | |
485 | m48t59_nvram_attr.size = pdata->offset; |
486 | |
487 | ret = sysfs_create_bin_file(&pdev->dev.kobj, &m48t59_nvram_attr); |
488 | if (ret) { |
489 | rtc_device_unregister(m48t59->rtc); |
490 | goto out; |
491 | } |
492 | |
493 | return 0; |
494 | |
495 | out: |
496 | if (m48t59->irq != NO_IRQ) |
497 | free_irq(m48t59->irq, &pdev->dev); |
498 | if (m48t59->ioaddr) |
499 | iounmap(m48t59->ioaddr); |
500 | kfree(m48t59); |
501 | return ret; |
502 | } |
503 | |
504 | static int m48t59_rtc_remove(struct platform_device *pdev) |
505 | { |
506 | struct m48t59_private *m48t59 = platform_get_drvdata(pdev); |
507 | struct m48t59_plat_data *pdata = pdev->dev.platform_data; |
508 | |
509 | sysfs_remove_bin_file(&pdev->dev.kobj, &m48t59_nvram_attr); |
510 | if (!IS_ERR(m48t59->rtc)) |
511 | rtc_device_unregister(m48t59->rtc); |
512 | if (m48t59->ioaddr && !pdata->ioaddr) |
513 | iounmap(m48t59->ioaddr); |
514 | if (m48t59->irq != NO_IRQ) |
515 | free_irq(m48t59->irq, &pdev->dev); |
516 | platform_set_drvdata(pdev, NULL); |
517 | kfree(m48t59); |
518 | return 0; |
519 | } |
520 | |
521 | /* work with hotplug and coldplug */ |
522 | MODULE_ALIAS("platform:rtc-m48t59"); |
523 | |
524 | static struct platform_driver m48t59_rtc_driver = { |
525 | .driver = { |
526 | .name = "rtc-m48t59", |
527 | .owner = THIS_MODULE, |
528 | }, |
529 | .probe = m48t59_rtc_probe, |
530 | .remove = m48t59_rtc_remove, |
531 | }; |
532 | |
533 | module_platform_driver(m48t59_rtc_driver); |
534 | |
535 | MODULE_AUTHOR("Mark Zhan <rongkai.zhan@windriver.com>"); |
536 | MODULE_DESCRIPTION("M48T59/M48T02/M48T08 RTC driver"); |
537 | MODULE_LICENSE("GPL"); |
538 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9