130 	void (*lock)(struct omap_rtc *rtc);
131 	void (*unlock)(struct omap_rtc *rtc);
135 	struct rtc_device *rtc;  member
146 static inline u8 rtc_read(struct omap_rtc *rtc, unsigned int reg)  in rtc_read()  argument
148 	return readb(rtc->base + reg);  in rtc_read()
151 static inline u32 rtc_readl(struct omap_rtc *rtc, unsigned int reg)  in rtc_readl()  argument
153 	return readl(rtc->base + reg);  in rtc_readl()
156 static inline void rtc_write(struct omap_rtc *rtc, unsigned int reg, u8 val)  in rtc_write()  argument
158 	writeb(val, rtc->base + reg);  in rtc_write()
161 static inline void rtc_writel(struct omap_rtc *rtc, unsigned int reg, u32 val)  in rtc_writel()  argument
163 	writel(val, rtc->base + reg);  in rtc_writel()
166 static void am3352_rtc_unlock(struct omap_rtc *rtc)  in am3352_rtc_unlock()  argument
168 	rtc_writel(rtc, OMAP_RTC_KICK0_REG, KICK0_VALUE);  in am3352_rtc_unlock()
169 	rtc_writel(rtc, OMAP_RTC_KICK1_REG, KICK1_VALUE);  in am3352_rtc_unlock()
172 static void am3352_rtc_lock(struct omap_rtc *rtc)  in am3352_rtc_lock()  argument
174 	rtc_writel(rtc, OMAP_RTC_KICK0_REG, 0);  in am3352_rtc_lock()
175 	rtc_writel(rtc, OMAP_RTC_KICK1_REG, 0);  in am3352_rtc_lock()
178 static void default_rtc_unlock(struct omap_rtc *rtc)  in default_rtc_unlock()  argument
182 static void default_rtc_lock(struct omap_rtc *rtc)  in default_rtc_lock()  argument
191 static void rtc_wait_not_busy(struct omap_rtc *rtc)  in rtc_wait_not_busy()  argument
198 		status = rtc_read(rtc, OMAP_RTC_STATUS_REG);  in rtc_wait_not_busy()
208 	struct omap_rtc	*rtc = dev_id;  in rtc_irq()  local
212 	irq_data = rtc_read(rtc, OMAP_RTC_STATUS_REG);  in rtc_irq()
216 		rtc->type->unlock(rtc);  in rtc_irq()
217 		rtc_write(rtc, OMAP_RTC_STATUS_REG, OMAP_RTC_STATUS_ALARM);  in rtc_irq()
218 		rtc->type->lock(rtc);  in rtc_irq()
226 	rtc_update_irq(rtc->rtc, 1, events);  in rtc_irq()
233 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_alarm_irq_enable()  local
237 	rtc_wait_not_busy(rtc);  in omap_rtc_alarm_irq_enable()
238 	reg = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_alarm_irq_enable()
239 	if (rtc->type->has_irqwakeen)  in omap_rtc_alarm_irq_enable()
240 		irqwake_reg = rtc_read(rtc, OMAP_RTC_IRQWAKEEN);  in omap_rtc_alarm_irq_enable()
249 	rtc_wait_not_busy(rtc);  in omap_rtc_alarm_irq_enable()
250 	rtc->type->unlock(rtc);  in omap_rtc_alarm_irq_enable()
251 	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, reg);  in omap_rtc_alarm_irq_enable()
252 	if (rtc->type->has_irqwakeen)  in omap_rtc_alarm_irq_enable()
253 		rtc_write(rtc, OMAP_RTC_IRQWAKEEN, irqwake_reg);  in omap_rtc_alarm_irq_enable()
254 	rtc->type->lock(rtc);  in omap_rtc_alarm_irq_enable()
292 static void omap_rtc_read_time_raw(struct omap_rtc *rtc, struct rtc_time *tm)  in omap_rtc_read_time_raw()  argument
294 	tm->tm_sec = rtc_read(rtc, OMAP_RTC_SECONDS_REG);  in omap_rtc_read_time_raw()
295 	tm->tm_min = rtc_read(rtc, OMAP_RTC_MINUTES_REG);  in omap_rtc_read_time_raw()
296 	tm->tm_hour = rtc_read(rtc, OMAP_RTC_HOURS_REG);  in omap_rtc_read_time_raw()
297 	tm->tm_mday = rtc_read(rtc, OMAP_RTC_DAYS_REG);  in omap_rtc_read_time_raw()
298 	tm->tm_mon = rtc_read(rtc, OMAP_RTC_MONTHS_REG);  in omap_rtc_read_time_raw()
299 	tm->tm_year = rtc_read(rtc, OMAP_RTC_YEARS_REG);  in omap_rtc_read_time_raw()
304 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_read_time()  local
308 	rtc_wait_not_busy(rtc);  in omap_rtc_read_time()
309 	omap_rtc_read_time_raw(rtc, tm);  in omap_rtc_read_time()
319 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_set_time()  local
325 	rtc_wait_not_busy(rtc);  in omap_rtc_set_time()
327 	rtc->type->unlock(rtc);  in omap_rtc_set_time()
328 	rtc_write(rtc, OMAP_RTC_YEARS_REG, tm->tm_year);  in omap_rtc_set_time()
329 	rtc_write(rtc, OMAP_RTC_MONTHS_REG, tm->tm_mon);  in omap_rtc_set_time()
330 	rtc_write(rtc, OMAP_RTC_DAYS_REG, tm->tm_mday);  in omap_rtc_set_time()
331 	rtc_write(rtc, OMAP_RTC_HOURS_REG, tm->tm_hour);  in omap_rtc_set_time()
332 	rtc_write(rtc, OMAP_RTC_MINUTES_REG, tm->tm_min);  in omap_rtc_set_time()
333 	rtc_write(rtc, OMAP_RTC_SECONDS_REG, tm->tm_sec);  in omap_rtc_set_time()
334 	rtc->type->lock(rtc);  in omap_rtc_set_time()
343 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_read_alarm()  local
347 	rtc_wait_not_busy(rtc);  in omap_rtc_read_alarm()
349 	alm->time.tm_sec = rtc_read(rtc, OMAP_RTC_ALARM_SECONDS_REG);  in omap_rtc_read_alarm()
350 	alm->time.tm_min = rtc_read(rtc, OMAP_RTC_ALARM_MINUTES_REG);  in omap_rtc_read_alarm()
351 	alm->time.tm_hour = rtc_read(rtc, OMAP_RTC_ALARM_HOURS_REG);  in omap_rtc_read_alarm()
352 	alm->time.tm_mday = rtc_read(rtc, OMAP_RTC_ALARM_DAYS_REG);  in omap_rtc_read_alarm()
353 	alm->time.tm_mon = rtc_read(rtc, OMAP_RTC_ALARM_MONTHS_REG);  in omap_rtc_read_alarm()
354 	alm->time.tm_year = rtc_read(rtc, OMAP_RTC_ALARM_YEARS_REG);  in omap_rtc_read_alarm()
360 	interrupts = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_read_alarm()
368 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_set_alarm()  local
375 	rtc_wait_not_busy(rtc);  in omap_rtc_set_alarm()
377 	rtc->type->unlock(rtc);  in omap_rtc_set_alarm()
378 	rtc_write(rtc, OMAP_RTC_ALARM_YEARS_REG, alm->time.tm_year);  in omap_rtc_set_alarm()
379 	rtc_write(rtc, OMAP_RTC_ALARM_MONTHS_REG, alm->time.tm_mon);  in omap_rtc_set_alarm()
380 	rtc_write(rtc, OMAP_RTC_ALARM_DAYS_REG, alm->time.tm_mday);  in omap_rtc_set_alarm()
381 	rtc_write(rtc, OMAP_RTC_ALARM_HOURS_REG, alm->time.tm_hour);  in omap_rtc_set_alarm()
382 	rtc_write(rtc, OMAP_RTC_ALARM_MINUTES_REG, alm->time.tm_min);  in omap_rtc_set_alarm()
383 	rtc_write(rtc, OMAP_RTC_ALARM_SECONDS_REG, alm->time.tm_sec);  in omap_rtc_set_alarm()
385 	reg = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_set_alarm()
386 	if (rtc->type->has_irqwakeen)  in omap_rtc_set_alarm()
387 		irqwake_reg = rtc_read(rtc, OMAP_RTC_IRQWAKEEN);  in omap_rtc_set_alarm()
396 	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, reg);  in omap_rtc_set_alarm()
397 	if (rtc->type->has_irqwakeen)  in omap_rtc_set_alarm()
398 		rtc_write(rtc, OMAP_RTC_IRQWAKEEN, irqwake_reg);  in omap_rtc_set_alarm()
399 	rtc->type->lock(rtc);  in omap_rtc_set_alarm()
424 	struct omap_rtc *rtc = omap_rtc_power_off_rtc;  in omap_rtc_power_off()  local
429 	rtc->type->unlock(rtc);  in omap_rtc_power_off()
431 	val = rtc_readl(rtc, OMAP_RTC_PMIC_REG);  in omap_rtc_power_off()
432 	rtc_writel(rtc, OMAP_RTC_PMIC_REG, val | OMAP_RTC_PMIC_POWER_EN_EN);  in omap_rtc_power_off()
435 	omap_rtc_read_time_raw(rtc, &tm);  in omap_rtc_power_off()
441 		dev_err(&rtc->rtc->dev, "power off failed\n");  in omap_rtc_power_off()
445 	rtc_wait_not_busy(rtc);  in omap_rtc_power_off()
447 	rtc_write(rtc, OMAP_RTC_ALARM2_SECONDS_REG, tm.tm_sec);  in omap_rtc_power_off()
448 	rtc_write(rtc, OMAP_RTC_ALARM2_MINUTES_REG, tm.tm_min);  in omap_rtc_power_off()
449 	rtc_write(rtc, OMAP_RTC_ALARM2_HOURS_REG, tm.tm_hour);  in omap_rtc_power_off()
450 	rtc_write(rtc, OMAP_RTC_ALARM2_DAYS_REG, tm.tm_mday);  in omap_rtc_power_off()
451 	rtc_write(rtc, OMAP_RTC_ALARM2_MONTHS_REG, tm.tm_mon);  in omap_rtc_power_off()
452 	rtc_write(rtc, OMAP_RTC_ALARM2_YEARS_REG, tm.tm_year);  in omap_rtc_power_off()
459 	val = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_power_off()
460 	rtc_writel(rtc, OMAP_RTC_INTERRUPTS_REG,  in omap_rtc_power_off()
462 	rtc->type->lock(rtc);  in omap_rtc_power_off()
530 	struct omap_rtc	*rtc;  in omap_rtc_probe()  local
537 	rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);  in omap_rtc_probe()
538 	if (!rtc)  in omap_rtc_probe()
543 		rtc->type = of_id->data;  in omap_rtc_probe()
544 		rtc->is_pmic_controller = rtc->type->has_pmic_mode &&  in omap_rtc_probe()
549 		rtc->type = (void *)id_entry->driver_data;  in omap_rtc_probe()
552 	rtc->irq_timer = platform_get_irq(pdev, 0);  in omap_rtc_probe()
553 	if (rtc->irq_timer <= 0)  in omap_rtc_probe()
556 	rtc->irq_alarm = platform_get_irq(pdev, 1);  in omap_rtc_probe()
557 	if (rtc->irq_alarm <= 0)  in omap_rtc_probe()
560 	rtc->clk = devm_clk_get(&pdev->dev, "ext-clk");  in omap_rtc_probe()
561 	if (!IS_ERR(rtc->clk))  in omap_rtc_probe()
562 		rtc->has_ext_clk = true;  in omap_rtc_probe()
564 		rtc->clk = devm_clk_get(&pdev->dev, "int-clk");  in omap_rtc_probe()
566 	if (!IS_ERR(rtc->clk))  in omap_rtc_probe()
567 		clk_prepare_enable(rtc->clk);  in omap_rtc_probe()
570 	rtc->base = devm_ioremap_resource(&pdev->dev, res);  in omap_rtc_probe()
571 	if (IS_ERR(rtc->base))  in omap_rtc_probe()
572 		return PTR_ERR(rtc->base);  in omap_rtc_probe()
574 	platform_set_drvdata(pdev, rtc);  in omap_rtc_probe()
580 	rtc->type->unlock(rtc);  in omap_rtc_probe()
587 	rtc_writel(rtc, OMAP_RTC_INTERRUPTS_REG, 0);  in omap_rtc_probe()
590 	if (rtc->type->has_32kclk_en) {  in omap_rtc_probe()
591 		reg = rtc_read(rtc, OMAP_RTC_OSC_REG);  in omap_rtc_probe()
592 		rtc_writel(rtc, OMAP_RTC_OSC_REG,  in omap_rtc_probe()
597 	reg = rtc_read(rtc, OMAP_RTC_STATUS_REG);  in omap_rtc_probe()
601 	if (rtc->type->has_pmic_mode)  in omap_rtc_probe()
604 	if (rtc->type->has_power_up_reset) {  in omap_rtc_probe()
611 		rtc_write(rtc, OMAP_RTC_STATUS_REG, reg & mask);  in omap_rtc_probe()
614 	reg = rtc_read(rtc, OMAP_RTC_CTRL_REG);  in omap_rtc_probe()
641 		rtc_write(rtc, OMAP_RTC_CTRL_REG, new_ctrl);  in omap_rtc_probe()
647 	if (rtc->has_ext_clk) {  in omap_rtc_probe()
648 		reg = rtc_read(rtc, OMAP_RTC_OSC_REG);  in omap_rtc_probe()
649 		rtc_write(rtc, OMAP_RTC_OSC_REG,  in omap_rtc_probe()
653 	rtc->type->lock(rtc);  in omap_rtc_probe()
657 	rtc->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,  in omap_rtc_probe()
659 	if (IS_ERR(rtc->rtc)) {  in omap_rtc_probe()
660 		ret = PTR_ERR(rtc->rtc);  in omap_rtc_probe()
665 	ret = devm_request_irq(&pdev->dev, rtc->irq_timer, rtc_irq, 0,  in omap_rtc_probe()
666 			dev_name(&rtc->rtc->dev), rtc);  in omap_rtc_probe()
670 	if (rtc->irq_timer != rtc->irq_alarm) {  in omap_rtc_probe()
671 		ret = devm_request_irq(&pdev->dev, rtc->irq_alarm, rtc_irq, 0,  in omap_rtc_probe()
672 				dev_name(&rtc->rtc->dev), rtc);  in omap_rtc_probe()
677 	if (rtc->is_pmic_controller) {  in omap_rtc_probe()
679 			omap_rtc_power_off_rtc = rtc;  in omap_rtc_probe()
688 	rtc->type->lock(rtc);  in omap_rtc_probe()
697 	struct omap_rtc *rtc = platform_get_drvdata(pdev);  in omap_rtc_remove()  local
701 			omap_rtc_power_off_rtc == rtc) {  in omap_rtc_remove()
708 	if (!IS_ERR(rtc->clk))  in omap_rtc_remove()
709 		clk_disable_unprepare(rtc->clk);  in omap_rtc_remove()
711 	rtc->type->unlock(rtc);  in omap_rtc_remove()
713 	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, 0);  in omap_rtc_remove()
715 	if (rtc->has_ext_clk) {  in omap_rtc_remove()
716 		reg = rtc_read(rtc, OMAP_RTC_OSC_REG);  in omap_rtc_remove()
718 		rtc_write(rtc, OMAP_RTC_OSC_REG, reg);  in omap_rtc_remove()
721 	rtc->type->lock(rtc);  in omap_rtc_remove()
733 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_suspend()  local
735 	rtc->interrupts_reg = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_suspend()
737 	rtc->type->unlock(rtc);  in omap_rtc_suspend()
744 		enable_irq_wake(rtc->irq_alarm);  in omap_rtc_suspend()
746 		rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, 0);  in omap_rtc_suspend()
747 	rtc->type->lock(rtc);  in omap_rtc_suspend()
757 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_resume()  local
762 	rtc->type->unlock(rtc);  in omap_rtc_resume()
764 		disable_irq_wake(rtc->irq_alarm);  in omap_rtc_resume()
766 		rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, rtc->interrupts_reg);  in omap_rtc_resume()
767 	rtc->type->lock(rtc);  in omap_rtc_resume()
777 	struct omap_rtc *rtc = platform_get_drvdata(pdev);  in omap_rtc_shutdown()  local
784 	rtc->type->unlock(rtc);  in omap_rtc_shutdown()
785 	mask = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_shutdown()
787 	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, mask);  in omap_rtc_shutdown()
788 	rtc->type->lock(rtc);  in omap_rtc_shutdown()