]>
Commit | Line | Data |
---|---|---|
0942a71e RK |
1 | /* |
2 | * drivers/rtc/rtc-spear.c | |
3 | * | |
4 | * Copyright (C) 2010 ST Microelectronics | |
5 | * Rajeev Kumar<rajeev-dlh.kumar@st.com> | |
6 | * | |
7 | * This file is licensed under the terms of the GNU General Public | |
8 | * License version 2. This program is licensed "as is" without any | |
9 | * warranty of any kind, whether express or implied. | |
10 | */ | |
11 | ||
12 | #include <linux/bcd.h> | |
13 | #include <linux/clk.h> | |
14 | #include <linux/delay.h> | |
15 | #include <linux/init.h> | |
16 | #include <linux/io.h> | |
17 | #include <linux/irq.h> | |
18 | #include <linux/module.h> | |
19 | #include <linux/platform_device.h> | |
20 | #include <linux/rtc.h> | |
21 | #include <linux/slab.h> | |
22 | #include <linux/spinlock.h> | |
23 | ||
24 | /* RTC registers */ | |
25 | #define TIME_REG 0x00 | |
26 | #define DATE_REG 0x04 | |
27 | #define ALARM_TIME_REG 0x08 | |
28 | #define ALARM_DATE_REG 0x0C | |
29 | #define CTRL_REG 0x10 | |
30 | #define STATUS_REG 0x14 | |
31 | ||
32 | /* TIME_REG & ALARM_TIME_REG */ | |
33 | #define SECONDS_UNITS (0xf<<0) /* seconds units position */ | |
34 | #define SECONDS_TENS (0x7<<4) /* seconds tens position */ | |
35 | #define MINUTES_UNITS (0xf<<8) /* minutes units position */ | |
36 | #define MINUTES_TENS (0x7<<12) /* minutes tens position */ | |
37 | #define HOURS_UNITS (0xf<<16) /* hours units position */ | |
38 | #define HOURS_TENS (0x3<<20) /* hours tens position */ | |
39 | ||
40 | /* DATE_REG & ALARM_DATE_REG */ | |
41 | #define DAYS_UNITS (0xf<<0) /* days units position */ | |
42 | #define DAYS_TENS (0x3<<4) /* days tens position */ | |
43 | #define MONTHS_UNITS (0xf<<8) /* months units position */ | |
44 | #define MONTHS_TENS (0x1<<12) /* months tens position */ | |
45 | #define YEARS_UNITS (0xf<<16) /* years units position */ | |
46 | #define YEARS_TENS (0xf<<20) /* years tens position */ | |
47 | #define YEARS_HUNDREDS (0xf<<24) /* years hundereds position */ | |
48 | #define YEARS_MILLENIUMS (0xf<<28) /* years millenium position */ | |
49 | ||
50 | /* MASK SHIFT TIME_REG & ALARM_TIME_REG*/ | |
51 | #define SECOND_SHIFT 0x00 /* seconds units */ | |
52 | #define MINUTE_SHIFT 0x08 /* minutes units position */ | |
53 | #define HOUR_SHIFT 0x10 /* hours units position */ | |
54 | #define MDAY_SHIFT 0x00 /* Month day shift */ | |
55 | #define MONTH_SHIFT 0x08 /* Month shift */ | |
56 | #define YEAR_SHIFT 0x10 /* Year shift */ | |
57 | ||
58 | #define SECOND_MASK 0x7F | |
59 | #define MIN_MASK 0x7F | |
60 | #define HOUR_MASK 0x3F | |
61 | #define DAY_MASK 0x3F | |
62 | #define MONTH_MASK 0x7F | |
63 | #define YEAR_MASK 0xFFFF | |
64 | ||
65 | /* date reg equal to time reg, for debug only */ | |
66 | #define TIME_BYP (1<<9) | |
67 | #define INT_ENABLE (1<<31) /* interrupt enable */ | |
68 | ||
69 | /* STATUS_REG */ | |
70 | #define CLK_UNCONNECTED (1<<0) | |
71 | #define PEND_WR_TIME (1<<2) | |
72 | #define PEND_WR_DATE (1<<3) | |
73 | #define LOST_WR_TIME (1<<4) | |
74 | #define LOST_WR_DATE (1<<5) | |
75 | #define RTC_INT_MASK (1<<31) | |
76 | #define STATUS_BUSY (PEND_WR_TIME | PEND_WR_DATE) | |
77 | #define STATUS_FAIL (LOST_WR_TIME | LOST_WR_DATE) | |
78 | ||
79 | struct spear_rtc_config { | |
ee6c54ca | 80 | struct rtc_device *rtc; |
0942a71e RK |
81 | struct clk *clk; |
82 | spinlock_t lock; | |
83 | void __iomem *ioaddr; | |
cd0e08a8 | 84 | unsigned int irq_wake; |
0942a71e RK |
85 | }; |
86 | ||
87 | static inline void spear_rtc_clear_interrupt(struct spear_rtc_config *config) | |
88 | { | |
89 | unsigned int val; | |
90 | unsigned long flags; | |
91 | ||
92 | spin_lock_irqsave(&config->lock, flags); | |
93 | val = readl(config->ioaddr + STATUS_REG); | |
94 | val |= RTC_INT_MASK; | |
95 | writel(val, config->ioaddr + STATUS_REG); | |
96 | spin_unlock_irqrestore(&config->lock, flags); | |
97 | } | |
98 | ||
99 | static inline void spear_rtc_enable_interrupt(struct spear_rtc_config *config) | |
100 | { | |
101 | unsigned int val; | |
102 | ||
103 | val = readl(config->ioaddr + CTRL_REG); | |
104 | if (!(val & INT_ENABLE)) { | |
105 | spear_rtc_clear_interrupt(config); | |
106 | val |= INT_ENABLE; | |
107 | writel(val, config->ioaddr + CTRL_REG); | |
108 | } | |
109 | } | |
110 | ||
111 | static inline void spear_rtc_disable_interrupt(struct spear_rtc_config *config) | |
112 | { | |
113 | unsigned int val; | |
114 | ||
115 | val = readl(config->ioaddr + CTRL_REG); | |
116 | if (val & INT_ENABLE) { | |
117 | val &= ~INT_ENABLE; | |
118 | writel(val, config->ioaddr + CTRL_REG); | |
119 | } | |
120 | } | |
121 | ||
122 | static inline int is_write_complete(struct spear_rtc_config *config) | |
123 | { | |
124 | int ret = 0; | |
125 | unsigned long flags; | |
126 | ||
127 | spin_lock_irqsave(&config->lock, flags); | |
128 | if ((readl(config->ioaddr + STATUS_REG)) & STATUS_FAIL) | |
129 | ret = -EIO; | |
130 | spin_unlock_irqrestore(&config->lock, flags); | |
131 | ||
132 | return ret; | |
133 | } | |
134 | ||
135 | static void rtc_wait_not_busy(struct spear_rtc_config *config) | |
136 | { | |
137 | int status, count = 0; | |
138 | unsigned long flags; | |
139 | ||
140 | /* Assuming BUSY may stay active for 80 msec) */ | |
141 | for (count = 0; count < 80; count++) { | |
142 | spin_lock_irqsave(&config->lock, flags); | |
143 | status = readl(config->ioaddr + STATUS_REG); | |
144 | spin_unlock_irqrestore(&config->lock, flags); | |
145 | if ((status & STATUS_BUSY) == 0) | |
146 | break; | |
147 | /* check status busy, after each msec */ | |
148 | msleep(1); | |
149 | } | |
150 | } | |
151 | ||
152 | static irqreturn_t spear_rtc_irq(int irq, void *dev_id) | |
153 | { | |
ee6c54ca | 154 | struct spear_rtc_config *config = dev_id; |
0942a71e RK |
155 | unsigned long flags, events = 0; |
156 | unsigned int irq_data; | |
157 | ||
158 | spin_lock_irqsave(&config->lock, flags); | |
159 | irq_data = readl(config->ioaddr + STATUS_REG); | |
160 | spin_unlock_irqrestore(&config->lock, flags); | |
161 | ||
162 | if ((irq_data & RTC_INT_MASK)) { | |
163 | spear_rtc_clear_interrupt(config); | |
164 | events = RTC_IRQF | RTC_AF; | |
ee6c54ca | 165 | rtc_update_irq(config->rtc, 1, events); |
0942a71e RK |
166 | return IRQ_HANDLED; |
167 | } else | |
168 | return IRQ_NONE; | |
169 | ||
170 | } | |
171 | ||
172 | static int tm2bcd(struct rtc_time *tm) | |
173 | { | |
174 | if (rtc_valid_tm(tm) != 0) | |
175 | return -EINVAL; | |
176 | tm->tm_sec = bin2bcd(tm->tm_sec); | |
177 | tm->tm_min = bin2bcd(tm->tm_min); | |
178 | tm->tm_hour = bin2bcd(tm->tm_hour); | |
179 | tm->tm_mday = bin2bcd(tm->tm_mday); | |
180 | tm->tm_mon = bin2bcd(tm->tm_mon + 1); | |
181 | tm->tm_year = bin2bcd(tm->tm_year); | |
182 | ||
183 | return 0; | |
184 | } | |
185 | ||
186 | static void bcd2tm(struct rtc_time *tm) | |
187 | { | |
188 | tm->tm_sec = bcd2bin(tm->tm_sec); | |
189 | tm->tm_min = bcd2bin(tm->tm_min); | |
190 | tm->tm_hour = bcd2bin(tm->tm_hour); | |
191 | tm->tm_mday = bcd2bin(tm->tm_mday); | |
192 | tm->tm_mon = bcd2bin(tm->tm_mon) - 1; | |
193 | /* epoch == 1900 */ | |
194 | tm->tm_year = bcd2bin(tm->tm_year); | |
195 | } | |
196 | ||
197 | /* | |
198 | * spear_rtc_read_time - set the time | |
199 | * @dev: rtc device in use | |
200 | * @tm: holds date and time | |
201 | * | |
202 | * This function read time and date. On success it will return 0 | |
203 | * otherwise -ve error is returned. | |
204 | */ | |
205 | static int spear_rtc_read_time(struct device *dev, struct rtc_time *tm) | |
206 | { | |
ee6c54ca | 207 | struct spear_rtc_config *config = dev_get_drvdata(dev); |
0942a71e RK |
208 | unsigned int time, date; |
209 | ||
210 | /* we don't report wday/yday/isdst ... */ | |
211 | rtc_wait_not_busy(config); | |
212 | ||
213 | time = readl(config->ioaddr + TIME_REG); | |
214 | date = readl(config->ioaddr + DATE_REG); | |
215 | tm->tm_sec = (time >> SECOND_SHIFT) & SECOND_MASK; | |
216 | tm->tm_min = (time >> MINUTE_SHIFT) & MIN_MASK; | |
217 | tm->tm_hour = (time >> HOUR_SHIFT) & HOUR_MASK; | |
218 | tm->tm_mday = (date >> MDAY_SHIFT) & DAY_MASK; | |
219 | tm->tm_mon = (date >> MONTH_SHIFT) & MONTH_MASK; | |
220 | tm->tm_year = (date >> YEAR_SHIFT) & YEAR_MASK; | |
221 | ||
222 | bcd2tm(tm); | |
223 | return 0; | |
224 | } | |
225 | ||
226 | /* | |
227 | * spear_rtc_set_time - set the time | |
228 | * @dev: rtc device in use | |
229 | * @tm: holds date and time | |
230 | * | |
231 | * This function set time and date. On success it will return 0 | |
232 | * otherwise -ve error is returned. | |
233 | */ | |
234 | static int spear_rtc_set_time(struct device *dev, struct rtc_time *tm) | |
235 | { | |
ee6c54ca | 236 | struct spear_rtc_config *config = dev_get_drvdata(dev); |
0942a71e RK |
237 | unsigned int time, date, err = 0; |
238 | ||
239 | if (tm2bcd(tm) < 0) | |
240 | return -EINVAL; | |
241 | ||
242 | rtc_wait_not_busy(config); | |
243 | time = (tm->tm_sec << SECOND_SHIFT) | (tm->tm_min << MINUTE_SHIFT) | | |
244 | (tm->tm_hour << HOUR_SHIFT); | |
245 | date = (tm->tm_mday << MDAY_SHIFT) | (tm->tm_mon << MONTH_SHIFT) | | |
246 | (tm->tm_year << YEAR_SHIFT); | |
247 | writel(time, config->ioaddr + TIME_REG); | |
248 | writel(date, config->ioaddr + DATE_REG); | |
249 | err = is_write_complete(config); | |
250 | if (err < 0) | |
251 | return err; | |
252 | ||
253 | return 0; | |
254 | } | |
255 | ||
256 | /* | |
257 | * spear_rtc_read_alarm - read the alarm time | |
258 | * @dev: rtc device in use | |
259 | * @alm: holds alarm date and time | |
260 | * | |
261 | * This function read alarm time and date. On success it will return 0 | |
262 | * otherwise -ve error is returned. | |
263 | */ | |
264 | static int spear_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm) | |
265 | { | |
ee6c54ca | 266 | struct spear_rtc_config *config = dev_get_drvdata(dev); |
0942a71e RK |
267 | unsigned int time, date; |
268 | ||
269 | rtc_wait_not_busy(config); | |
270 | ||
271 | time = readl(config->ioaddr + ALARM_TIME_REG); | |
272 | date = readl(config->ioaddr + ALARM_DATE_REG); | |
273 | alm->time.tm_sec = (time >> SECOND_SHIFT) & SECOND_MASK; | |
274 | alm->time.tm_min = (time >> MINUTE_SHIFT) & MIN_MASK; | |
275 | alm->time.tm_hour = (time >> HOUR_SHIFT) & HOUR_MASK; | |
276 | alm->time.tm_mday = (date >> MDAY_SHIFT) & DAY_MASK; | |
277 | alm->time.tm_mon = (date >> MONTH_SHIFT) & MONTH_MASK; | |
278 | alm->time.tm_year = (date >> YEAR_SHIFT) & YEAR_MASK; | |
279 | ||
280 | bcd2tm(&alm->time); | |
281 | alm->enabled = readl(config->ioaddr + CTRL_REG) & INT_ENABLE; | |
282 | ||
283 | return 0; | |
284 | } | |
285 | ||
286 | /* | |
287 | * spear_rtc_set_alarm - set the alarm time | |
288 | * @dev: rtc device in use | |
289 | * @alm: holds alarm date and time | |
290 | * | |
291 | * This function set alarm time and date. On success it will return 0 | |
292 | * otherwise -ve error is returned. | |
293 | */ | |
294 | static int spear_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) | |
295 | { | |
ee6c54ca | 296 | struct spear_rtc_config *config = dev_get_drvdata(dev); |
0942a71e RK |
297 | unsigned int time, date, err = 0; |
298 | ||
299 | if (tm2bcd(&alm->time) < 0) | |
300 | return -EINVAL; | |
301 | ||
302 | rtc_wait_not_busy(config); | |
303 | ||
304 | time = (alm->time.tm_sec << SECOND_SHIFT) | (alm->time.tm_min << | |
305 | MINUTE_SHIFT) | (alm->time.tm_hour << HOUR_SHIFT); | |
306 | date = (alm->time.tm_mday << MDAY_SHIFT) | (alm->time.tm_mon << | |
307 | MONTH_SHIFT) | (alm->time.tm_year << YEAR_SHIFT); | |
308 | ||
309 | writel(time, config->ioaddr + ALARM_TIME_REG); | |
310 | writel(date, config->ioaddr + ALARM_DATE_REG); | |
311 | err = is_write_complete(config); | |
312 | if (err < 0) | |
313 | return err; | |
314 | ||
315 | if (alm->enabled) | |
316 | spear_rtc_enable_interrupt(config); | |
317 | else | |
318 | spear_rtc_disable_interrupt(config); | |
319 | ||
320 | return 0; | |
321 | } | |
131f8b75 SH |
322 | |
323 | static int spear_alarm_irq_enable(struct device *dev, unsigned int enabled) | |
324 | { | |
ee6c54ca | 325 | struct spear_rtc_config *config = dev_get_drvdata(dev); |
131f8b75 SH |
326 | int ret = 0; |
327 | ||
328 | spear_rtc_clear_interrupt(config); | |
329 | ||
330 | switch (enabled) { | |
331 | case 0: | |
332 | /* alarm off */ | |
333 | spear_rtc_disable_interrupt(config); | |
334 | break; | |
335 | case 1: | |
336 | /* alarm on */ | |
337 | spear_rtc_enable_interrupt(config); | |
338 | break; | |
339 | default: | |
340 | ret = -EINVAL; | |
341 | break; | |
342 | } | |
343 | ||
344 | return ret; | |
345 | } | |
346 | ||
0942a71e RK |
347 | static struct rtc_class_ops spear_rtc_ops = { |
348 | .read_time = spear_rtc_read_time, | |
349 | .set_time = spear_rtc_set_time, | |
350 | .read_alarm = spear_rtc_read_alarm, | |
351 | .set_alarm = spear_rtc_set_alarm, | |
131f8b75 | 352 | .alarm_irq_enable = spear_alarm_irq_enable, |
0942a71e RK |
353 | }; |
354 | ||
355 | static int __devinit spear_rtc_probe(struct platform_device *pdev) | |
356 | { | |
357 | struct resource *res; | |
0942a71e RK |
358 | struct spear_rtc_config *config; |
359 | unsigned int status = 0; | |
360 | int irq; | |
361 | ||
362 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
363 | if (!res) { | |
364 | dev_err(&pdev->dev, "no resource defined\n"); | |
365 | return -EBUSY; | |
366 | } | |
367 | if (!request_mem_region(res->start, resource_size(res), pdev->name)) { | |
368 | dev_err(&pdev->dev, "rtc region already claimed\n"); | |
369 | return -EBUSY; | |
370 | } | |
371 | ||
372 | config = kzalloc(sizeof(*config), GFP_KERNEL); | |
373 | if (!config) { | |
374 | dev_err(&pdev->dev, "out of memory\n"); | |
375 | status = -ENOMEM; | |
376 | goto err_release_region; | |
377 | } | |
378 | ||
379 | config->clk = clk_get(&pdev->dev, NULL); | |
380 | if (IS_ERR(config->clk)) { | |
381 | status = PTR_ERR(config->clk); | |
382 | goto err_kfree; | |
383 | } | |
384 | ||
385 | status = clk_enable(config->clk); | |
386 | if (status < 0) | |
387 | goto err_clk_put; | |
388 | ||
389 | config->ioaddr = ioremap(res->start, resource_size(res)); | |
390 | if (!config->ioaddr) { | |
391 | dev_err(&pdev->dev, "ioremap fail\n"); | |
392 | status = -ENOMEM; | |
393 | goto err_disable_clock; | |
394 | } | |
395 | ||
396 | spin_lock_init(&config->lock); | |
ee6c54ca | 397 | platform_set_drvdata(pdev, config); |
0942a71e | 398 | |
ee6c54ca VK |
399 | config->rtc = rtc_device_register(pdev->name, &pdev->dev, |
400 | &spear_rtc_ops, THIS_MODULE); | |
401 | if (IS_ERR(config->rtc)) { | |
0942a71e | 402 | dev_err(&pdev->dev, "can't register RTC device, err %ld\n", |
ee6c54ca VK |
403 | PTR_ERR(config->rtc)); |
404 | status = PTR_ERR(config->rtc); | |
0942a71e RK |
405 | goto err_iounmap; |
406 | } | |
407 | ||
0942a71e RK |
408 | /* alarm irqs */ |
409 | irq = platform_get_irq(pdev, 0); | |
410 | if (irq < 0) { | |
411 | dev_err(&pdev->dev, "no update irq?\n"); | |
412 | status = irq; | |
413 | goto err_clear_platdata; | |
414 | } | |
415 | ||
ee6c54ca | 416 | status = request_irq(irq, spear_rtc_irq, 0, pdev->name, config); |
0942a71e RK |
417 | if (status) { |
418 | dev_err(&pdev->dev, "Alarm interrupt IRQ%d already \ | |
419 | claimed\n", irq); | |
420 | goto err_clear_platdata; | |
421 | } | |
422 | ||
423 | if (!device_can_wakeup(&pdev->dev)) | |
424 | device_init_wakeup(&pdev->dev, 1); | |
425 | ||
426 | return 0; | |
427 | ||
428 | err_clear_platdata: | |
429 | platform_set_drvdata(pdev, NULL); | |
ee6c54ca | 430 | rtc_device_unregister(config->rtc); |
0942a71e RK |
431 | err_iounmap: |
432 | iounmap(config->ioaddr); | |
433 | err_disable_clock: | |
434 | clk_disable(config->clk); | |
435 | err_clk_put: | |
436 | clk_put(config->clk); | |
437 | err_kfree: | |
438 | kfree(config); | |
439 | err_release_region: | |
440 | release_mem_region(res->start, resource_size(res)); | |
441 | ||
442 | return status; | |
443 | } | |
444 | ||
445 | static int __devexit spear_rtc_remove(struct platform_device *pdev) | |
446 | { | |
ee6c54ca | 447 | struct spear_rtc_config *config = platform_get_drvdata(pdev); |
0942a71e RK |
448 | int irq; |
449 | struct resource *res; | |
450 | ||
451 | /* leave rtc running, but disable irqs */ | |
452 | spear_rtc_disable_interrupt(config); | |
453 | device_init_wakeup(&pdev->dev, 0); | |
454 | irq = platform_get_irq(pdev, 0); | |
455 | if (irq) | |
456 | free_irq(irq, pdev); | |
457 | clk_disable(config->clk); | |
458 | clk_put(config->clk); | |
459 | iounmap(config->ioaddr); | |
460 | kfree(config); | |
461 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
462 | if (res) | |
463 | release_mem_region(res->start, resource_size(res)); | |
464 | platform_set_drvdata(pdev, NULL); | |
ee6c54ca | 465 | rtc_device_unregister(config->rtc); |
0942a71e RK |
466 | |
467 | return 0; | |
468 | } | |
469 | ||
470 | #ifdef CONFIG_PM | |
471 | ||
472 | static int spear_rtc_suspend(struct platform_device *pdev, pm_message_t state) | |
473 | { | |
ee6c54ca | 474 | struct spear_rtc_config *config = platform_get_drvdata(pdev); |
0942a71e RK |
475 | int irq; |
476 | ||
477 | irq = platform_get_irq(pdev, 0); | |
cd0e08a8 DS |
478 | if (device_may_wakeup(&pdev->dev)) { |
479 | if (!enable_irq_wake(irq)) | |
480 | config->irq_wake = 1; | |
481 | } else { | |
0942a71e RK |
482 | spear_rtc_disable_interrupt(config); |
483 | clk_disable(config->clk); | |
484 | } | |
485 | ||
486 | return 0; | |
487 | } | |
488 | ||
489 | static int spear_rtc_resume(struct platform_device *pdev) | |
490 | { | |
ee6c54ca | 491 | struct spear_rtc_config *config = platform_get_drvdata(pdev); |
0942a71e RK |
492 | int irq; |
493 | ||
494 | irq = platform_get_irq(pdev, 0); | |
495 | ||
cd0e08a8 DS |
496 | if (device_may_wakeup(&pdev->dev)) { |
497 | if (config->irq_wake) { | |
498 | disable_irq_wake(irq); | |
499 | config->irq_wake = 0; | |
500 | } | |
501 | } else { | |
0942a71e RK |
502 | clk_enable(config->clk); |
503 | spear_rtc_enable_interrupt(config); | |
504 | } | |
505 | ||
506 | return 0; | |
507 | } | |
508 | ||
509 | #else | |
510 | #define spear_rtc_suspend NULL | |
511 | #define spear_rtc_resume NULL | |
512 | #endif | |
513 | ||
514 | static void spear_rtc_shutdown(struct platform_device *pdev) | |
515 | { | |
ee6c54ca | 516 | struct spear_rtc_config *config = platform_get_drvdata(pdev); |
0942a71e RK |
517 | |
518 | spear_rtc_disable_interrupt(config); | |
519 | clk_disable(config->clk); | |
520 | } | |
521 | ||
522 | static struct platform_driver spear_rtc_driver = { | |
523 | .probe = spear_rtc_probe, | |
524 | .remove = __devexit_p(spear_rtc_remove), | |
525 | .suspend = spear_rtc_suspend, | |
526 | .resume = spear_rtc_resume, | |
527 | .shutdown = spear_rtc_shutdown, | |
528 | .driver = { | |
529 | .name = "rtc-spear", | |
530 | }, | |
531 | }; | |
532 | ||
0c4eae66 | 533 | module_platform_driver(spear_rtc_driver); |
0942a71e RK |
534 | |
535 | MODULE_ALIAS("platform:rtc-spear"); | |
536 | MODULE_AUTHOR("Rajeev Kumar <rajeev-dlh.kumar@st.com>"); | |
537 | MODULE_DESCRIPTION("ST SPEAr Realtime Clock Driver (RTC)"); | |
538 | MODULE_LICENSE("GPL"); |