106 struct davinci_rtc {  struct
112 static inline void rtcif_write(struct davinci_rtc *davinci_rtc,  in rtcif_write()  argument
115 	writel(val, davinci_rtc->base + addr);  in rtcif_write()
118 static inline u32 rtcif_read(struct davinci_rtc *davinci_rtc, u32 addr)  in rtcif_read()  argument
120 	return readl(davinci_rtc->base + addr);  in rtcif_read()
123 static inline void rtcif_wait(struct davinci_rtc *davinci_rtc)  in rtcif_wait()  argument
125 	while (rtcif_read(davinci_rtc, PRTCIF_CTLR) & PRTCIF_CTLR_BUSY)  in rtcif_wait()
129 static inline void rtcss_write(struct davinci_rtc *davinci_rtc,  in rtcss_write()  argument
132 	rtcif_wait(davinci_rtc);  in rtcss_write()
134 	rtcif_write(davinci_rtc, PRTCIF_CTLR_BENL_LSB | addr, PRTCIF_CTLR);  in rtcss_write()
135 	rtcif_write(davinci_rtc, val, PRTCIF_LDATA);  in rtcss_write()
137 	rtcif_wait(davinci_rtc);  in rtcss_write()
140 static inline u8 rtcss_read(struct davinci_rtc *davinci_rtc, u8 addr)  in rtcss_read()  argument
142 	rtcif_wait(davinci_rtc);  in rtcss_read()
144 	rtcif_write(davinci_rtc, PRTCIF_CTLR_DIR | PRTCIF_CTLR_BENL_LSB | addr,  in rtcss_read()
147 	rtcif_wait(davinci_rtc);  in rtcss_read()
149 	return rtcif_read(davinci_rtc, PRTCIF_LDATA);  in rtcss_read()
152 static inline void davinci_rtcss_calendar_wait(struct davinci_rtc *davinci_rtc)  in davinci_rtcss_calendar_wait()  argument
154 	while (rtcss_read(davinci_rtc, PRTCSS_RTC_CCTRL) &  in davinci_rtcss_calendar_wait()
161 	struct davinci_rtc *davinci_rtc = class_dev;  in davinci_rtc_interrupt()  local
168 	irq_flg = rtcif_read(davinci_rtc, PRTCIF_INTFLG) &  in davinci_rtc_interrupt()
171 	alm_irq = rtcss_read(davinci_rtc, PRTCSS_RTC_CCTRL) &  in davinci_rtc_interrupt()
174 	tmr_irq = rtcss_read(davinci_rtc, PRTCSS_RTC_CTRL) &  in davinci_rtc_interrupt()
180 			rtc_cctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CCTRL);  in davinci_rtc_interrupt()
182 			rtcss_write(davinci_rtc, rtc_cctrl, PRTCSS_RTC_CCTRL);  in davinci_rtc_interrupt()
185 			rtc_ctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CTRL);  in davinci_rtc_interrupt()
187 			rtcss_write(davinci_rtc, rtc_ctrl, PRTCSS_RTC_CTRL);  in davinci_rtc_interrupt()
190 		rtcif_write(davinci_rtc, PRTCIF_INTFLG_RTCSS,  in davinci_rtc_interrupt()
192 		rtc_update_irq(davinci_rtc->rtc, 1, events);  in davinci_rtc_interrupt()
203 	struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev);  in davinci_rtc_ioctl()  local
210 	rtc_ctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CTRL);  in davinci_rtc_ioctl()
223 	rtcss_write(davinci_rtc, rtc_ctrl, PRTCSS_RTC_CTRL);  in davinci_rtc_ioctl()
268 	struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev);  in davinci_rtc_read_time()  local
275 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_read_time()
276 	tm->tm_sec = bcd2bin(rtcss_read(davinci_rtc, PRTCSS_RTC_SEC));  in davinci_rtc_read_time()
278 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_read_time()
279 	tm->tm_min = bcd2bin(rtcss_read(davinci_rtc, PRTCSS_RTC_MIN));  in davinci_rtc_read_time()
281 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_read_time()
282 	tm->tm_hour = bcd2bin(rtcss_read(davinci_rtc, PRTCSS_RTC_HOUR));  in davinci_rtc_read_time()
284 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_read_time()
285 	day0 = rtcss_read(davinci_rtc, PRTCSS_RTC_DAY0);  in davinci_rtc_read_time()
287 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_read_time()
288 	day1 = rtcss_read(davinci_rtc, PRTCSS_RTC_DAY1);  in davinci_rtc_read_time()
303 	struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev);  in davinci_rtc_set_time()  local
312 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_set_time()
313 	rtcss_write(davinci_rtc, bin2bcd(tm->tm_sec), PRTCSS_RTC_SEC);  in davinci_rtc_set_time()
315 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_set_time()
316 	rtcss_write(davinci_rtc, bin2bcd(tm->tm_min), PRTCSS_RTC_MIN);  in davinci_rtc_set_time()
318 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_set_time()
319 	rtcss_write(davinci_rtc, bin2bcd(tm->tm_hour), PRTCSS_RTC_HOUR);  in davinci_rtc_set_time()
321 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_set_time()
322 	rtcss_write(davinci_rtc, days & 0xFF, PRTCSS_RTC_DAY0);  in davinci_rtc_set_time()
324 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_set_time()
325 	rtcss_write(davinci_rtc, (days & 0xFF00) >> 8, PRTCSS_RTC_DAY1);  in davinci_rtc_set_time()
327 	rtc_cctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CCTRL);  in davinci_rtc_set_time()
329 	rtcss_write(davinci_rtc, rtc_cctrl, PRTCSS_RTC_CCTRL);  in davinci_rtc_set_time()
339 	struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev);  in davinci_rtc_alarm_irq_enable()  local
341 	u8 rtc_cctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CCTRL);  in davinci_rtc_alarm_irq_enable()
354 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_alarm_irq_enable()
355 	rtcss_write(davinci_rtc, rtc_cctrl, PRTCSS_RTC_CCTRL);  in davinci_rtc_alarm_irq_enable()
364 	struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev);  in davinci_rtc_read_alarm()  local
373 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_read_alarm()
374 	alm->time.tm_min = bcd2bin(rtcss_read(davinci_rtc, PRTCSS_RTC_AMIN));  in davinci_rtc_read_alarm()
376 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_read_alarm()
377 	alm->time.tm_hour = bcd2bin(rtcss_read(davinci_rtc, PRTCSS_RTC_AHOUR));  in davinci_rtc_read_alarm()
379 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_read_alarm()
380 	day0 = rtcss_read(davinci_rtc, PRTCSS_RTC_ADAY0);  in davinci_rtc_read_alarm()
382 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_read_alarm()
383 	day1 = rtcss_read(davinci_rtc, PRTCSS_RTC_ADAY1);  in davinci_rtc_read_alarm()
392 	alm->pending = !!(rtcss_read(davinci_rtc,  in davinci_rtc_read_alarm()
402 	struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev);  in davinci_rtc_set_alarm()  local
410 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_set_alarm()
411 	rtcss_write(davinci_rtc, bin2bcd(alm->time.tm_min), PRTCSS_RTC_AMIN);  in davinci_rtc_set_alarm()
413 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_set_alarm()
414 	rtcss_write(davinci_rtc, bin2bcd(alm->time.tm_hour), PRTCSS_RTC_AHOUR);  in davinci_rtc_set_alarm()
416 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_set_alarm()
417 	rtcss_write(davinci_rtc, days & 0xFF, PRTCSS_RTC_ADAY0);  in davinci_rtc_set_alarm()
419 	davinci_rtcss_calendar_wait(davinci_rtc);  in davinci_rtc_set_alarm()
420 	rtcss_write(davinci_rtc, (days & 0xFF00) >> 8, PRTCSS_RTC_ADAY1);  in davinci_rtc_set_alarm()
439 	struct davinci_rtc *davinci_rtc;  in davinci_rtc_probe()  local
442 	davinci_rtc = devm_kzalloc(&pdev->dev, sizeof(struct davinci_rtc), GFP_KERNEL);  in davinci_rtc_probe()
443 	if (!davinci_rtc)  in davinci_rtc_probe()
446 	davinci_rtc->irq = platform_get_irq(pdev, 0);  in davinci_rtc_probe()
447 	if (davinci_rtc->irq < 0)  in davinci_rtc_probe()
448 		return davinci_rtc->irq;  in davinci_rtc_probe()
450 	davinci_rtc->base = devm_platform_ioremap_resource(pdev, 0);  in davinci_rtc_probe()
451 	if (IS_ERR(davinci_rtc->base))  in davinci_rtc_probe()
452 		return PTR_ERR(davinci_rtc->base);  in davinci_rtc_probe()
454 	platform_set_drvdata(pdev, davinci_rtc);  in davinci_rtc_probe()
456 	davinci_rtc->rtc = devm_rtc_allocate_device(&pdev->dev);  in davinci_rtc_probe()
457 	if (IS_ERR(davinci_rtc->rtc))  in davinci_rtc_probe()
458 		return PTR_ERR(davinci_rtc->rtc);  in davinci_rtc_probe()
460 	davinci_rtc->rtc->ops = &davinci_rtc_ops;  in davinci_rtc_probe()
461 	davinci_rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;  in davinci_rtc_probe()
462 	davinci_rtc->rtc->range_max = RTC_TIMESTAMP_BEGIN_2000 + (1 << 16) * 86400ULL - 1;  in davinci_rtc_probe()
464 	rtcif_write(davinci_rtc, PRTCIF_INTFLG_RTCSS, PRTCIF_INTFLG);  in davinci_rtc_probe()
465 	rtcif_write(davinci_rtc, 0, PRTCIF_INTEN);  in davinci_rtc_probe()
466 	rtcss_write(davinci_rtc, 0, PRTCSS_RTC_INTC_EXTENA1);  in davinci_rtc_probe()
468 	rtcss_write(davinci_rtc, 0, PRTCSS_RTC_CTRL);  in davinci_rtc_probe()
469 	rtcss_write(davinci_rtc, 0, PRTCSS_RTC_CCTRL);  in davinci_rtc_probe()
471 	ret = devm_request_irq(dev, davinci_rtc->irq, davinci_rtc_interrupt,  in davinci_rtc_probe()
472 			  0, "davinci_rtc", davinci_rtc);  in davinci_rtc_probe()
479 	rtcif_write(davinci_rtc, PRTCIF_INTEN_RTCSS, PRTCIF_INTEN);  in davinci_rtc_probe()
480 	rtcss_write(davinci_rtc, PRTCSS_RTC_INTC_EXTENA1_MASK,  in davinci_rtc_probe()
483 	rtcss_write(davinci_rtc, PRTCSS_RTC_CCTRL_CAEN, PRTCSS_RTC_CCTRL);  in davinci_rtc_probe()
487 	return rtc_register_device(davinci_rtc->rtc);  in davinci_rtc_probe()
492 	struct davinci_rtc *davinci_rtc = platform_get_drvdata(pdev);  in davinci_rtc_remove()  local
496 	rtcif_write(davinci_rtc, 0, PRTCIF_INTEN);  in davinci_rtc_remove()