137 	void (*lock)(struct omap_rtc *rtc);
138 	void (*unlock)(struct omap_rtc *rtc);
142 	struct rtc_device *rtc;  member
155 static inline u8 rtc_read(struct omap_rtc *rtc, unsigned int reg)  in rtc_read()  argument
157 	return readb(rtc->base + reg);  in rtc_read()
160 static inline u32 rtc_readl(struct omap_rtc *rtc, unsigned int reg)  in rtc_readl()  argument
162 	return readl(rtc->base + reg);  in rtc_readl()
165 static inline void rtc_write(struct omap_rtc *rtc, unsigned int reg, u8 val)  in rtc_write()  argument
167 	writeb(val, rtc->base + reg);  in rtc_write()
170 static inline void rtc_writel(struct omap_rtc *rtc, unsigned int reg, u32 val)  in rtc_writel()  argument
172 	writel(val, rtc->base + reg);  in rtc_writel()
175 static void am3352_rtc_unlock(struct omap_rtc *rtc)  in am3352_rtc_unlock()  argument
177 	rtc_writel(rtc, OMAP_RTC_KICK0_REG, KICK0_VALUE);  in am3352_rtc_unlock()
178 	rtc_writel(rtc, OMAP_RTC_KICK1_REG, KICK1_VALUE);  in am3352_rtc_unlock()
181 static void am3352_rtc_lock(struct omap_rtc *rtc)  in am3352_rtc_lock()  argument
183 	rtc_writel(rtc, OMAP_RTC_KICK0_REG, 0);  in am3352_rtc_lock()
184 	rtc_writel(rtc, OMAP_RTC_KICK1_REG, 0);  in am3352_rtc_lock()
187 static void default_rtc_unlock(struct omap_rtc *rtc)  in default_rtc_unlock()  argument
191 static void default_rtc_lock(struct omap_rtc *rtc)  in default_rtc_lock()  argument
200 static void rtc_wait_not_busy(struct omap_rtc *rtc)  in rtc_wait_not_busy()  argument
207 		status = rtc_read(rtc, OMAP_RTC_STATUS_REG);  in rtc_wait_not_busy()
217 	struct omap_rtc	*rtc = dev_id;  in rtc_irq()  local
221 	irq_data = rtc_read(rtc, OMAP_RTC_STATUS_REG);  in rtc_irq()
225 		rtc->type->unlock(rtc);  in rtc_irq()
226 		rtc_write(rtc, OMAP_RTC_STATUS_REG, OMAP_RTC_STATUS_ALARM);  in rtc_irq()
227 		rtc->type->lock(rtc);  in rtc_irq()
235 	rtc_update_irq(rtc->rtc, 1, events);  in rtc_irq()
242 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_alarm_irq_enable()  local
246 	rtc_wait_not_busy(rtc);  in omap_rtc_alarm_irq_enable()
247 	reg = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_alarm_irq_enable()
248 	if (rtc->type->has_irqwakeen)  in omap_rtc_alarm_irq_enable()
249 		irqwake_reg = rtc_read(rtc, OMAP_RTC_IRQWAKEEN);  in omap_rtc_alarm_irq_enable()
258 	rtc_wait_not_busy(rtc);  in omap_rtc_alarm_irq_enable()
259 	rtc->type->unlock(rtc);  in omap_rtc_alarm_irq_enable()
260 	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, reg);  in omap_rtc_alarm_irq_enable()
261 	if (rtc->type->has_irqwakeen)  in omap_rtc_alarm_irq_enable()
262 		rtc_write(rtc, OMAP_RTC_IRQWAKEEN, irqwake_reg);  in omap_rtc_alarm_irq_enable()
263 	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
324 	rtc_wait_not_busy(rtc);  in omap_rtc_set_time()
326 	rtc->type->unlock(rtc);  in omap_rtc_set_time()
327 	rtc_write(rtc, OMAP_RTC_YEARS_REG, tm->tm_year);  in omap_rtc_set_time()
328 	rtc_write(rtc, OMAP_RTC_MONTHS_REG, tm->tm_mon);  in omap_rtc_set_time()
329 	rtc_write(rtc, OMAP_RTC_DAYS_REG, tm->tm_mday);  in omap_rtc_set_time()
330 	rtc_write(rtc, OMAP_RTC_HOURS_REG, tm->tm_hour);  in omap_rtc_set_time()
331 	rtc_write(rtc, OMAP_RTC_MINUTES_REG, tm->tm_min);  in omap_rtc_set_time()
332 	rtc_write(rtc, OMAP_RTC_SECONDS_REG, tm->tm_sec);  in omap_rtc_set_time()
333 	rtc->type->lock(rtc);  in omap_rtc_set_time()
342 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_read_alarm()  local
346 	rtc_wait_not_busy(rtc);  in omap_rtc_read_alarm()
348 	alm->time.tm_sec = rtc_read(rtc, OMAP_RTC_ALARM_SECONDS_REG);  in omap_rtc_read_alarm()
349 	alm->time.tm_min = rtc_read(rtc, OMAP_RTC_ALARM_MINUTES_REG);  in omap_rtc_read_alarm()
350 	alm->time.tm_hour = rtc_read(rtc, OMAP_RTC_ALARM_HOURS_REG);  in omap_rtc_read_alarm()
351 	alm->time.tm_mday = rtc_read(rtc, OMAP_RTC_ALARM_DAYS_REG);  in omap_rtc_read_alarm()
352 	alm->time.tm_mon = rtc_read(rtc, OMAP_RTC_ALARM_MONTHS_REG);  in omap_rtc_read_alarm()
353 	alm->time.tm_year = rtc_read(rtc, OMAP_RTC_ALARM_YEARS_REG);  in omap_rtc_read_alarm()
359 	interrupts = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_read_alarm()
367 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_set_alarm()  local
373 	rtc_wait_not_busy(rtc);  in omap_rtc_set_alarm()
375 	rtc->type->unlock(rtc);  in omap_rtc_set_alarm()
376 	rtc_write(rtc, OMAP_RTC_ALARM_YEARS_REG, alm->time.tm_year);  in omap_rtc_set_alarm()
377 	rtc_write(rtc, OMAP_RTC_ALARM_MONTHS_REG, alm->time.tm_mon);  in omap_rtc_set_alarm()
378 	rtc_write(rtc, OMAP_RTC_ALARM_DAYS_REG, alm->time.tm_mday);  in omap_rtc_set_alarm()
379 	rtc_write(rtc, OMAP_RTC_ALARM_HOURS_REG, alm->time.tm_hour);  in omap_rtc_set_alarm()
380 	rtc_write(rtc, OMAP_RTC_ALARM_MINUTES_REG, alm->time.tm_min);  in omap_rtc_set_alarm()
381 	rtc_write(rtc, OMAP_RTC_ALARM_SECONDS_REG, alm->time.tm_sec);  in omap_rtc_set_alarm()
383 	reg = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_set_alarm()
384 	if (rtc->type->has_irqwakeen)  in omap_rtc_set_alarm()
385 		irqwake_reg = rtc_read(rtc, OMAP_RTC_IRQWAKEEN);  in omap_rtc_set_alarm()
394 	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, reg);  in omap_rtc_set_alarm()
395 	if (rtc->type->has_irqwakeen)  in omap_rtc_set_alarm()
396 		rtc_write(rtc, OMAP_RTC_IRQWAKEEN, irqwake_reg);  in omap_rtc_set_alarm()
397 	rtc->type->lock(rtc);  in omap_rtc_set_alarm()
413 	struct omap_rtc *rtc = omap_rtc_power_off_rtc;  in omap_rtc_power_off_program()  local
419 	rtc->type->unlock(rtc);  in omap_rtc_power_off_program()
421 	val = rtc_readl(rtc, OMAP_RTC_PMIC_REG);  in omap_rtc_power_off_program()
422 	rtc_writel(rtc, OMAP_RTC_PMIC_REG, val | OMAP_RTC_PMIC_POWER_EN_EN);  in omap_rtc_power_off_program()
426 	rtc_writel(rtc, OMAP_RTC_STATUS_REG, OMAP_RTC_STATUS_ALARM2);  in omap_rtc_power_off_program()
429 	omap_rtc_read_time_raw(rtc, &tm);  in omap_rtc_power_off_program()
437 	rtc_wait_not_busy(rtc);  in omap_rtc_power_off_program()
439 	rtc_write(rtc, OMAP_RTC_ALARM2_SECONDS_REG, tm.tm_sec);  in omap_rtc_power_off_program()
440 	rtc_write(rtc, OMAP_RTC_ALARM2_MINUTES_REG, tm.tm_min);  in omap_rtc_power_off_program()
441 	rtc_write(rtc, OMAP_RTC_ALARM2_HOURS_REG, tm.tm_hour);  in omap_rtc_power_off_program()
442 	rtc_write(rtc, OMAP_RTC_ALARM2_DAYS_REG, tm.tm_mday);  in omap_rtc_power_off_program()
443 	rtc_write(rtc, OMAP_RTC_ALARM2_MONTHS_REG, tm.tm_mon);  in omap_rtc_power_off_program()
444 	rtc_write(rtc, OMAP_RTC_ALARM2_YEARS_REG, tm.tm_year);  in omap_rtc_power_off_program()
451 	val = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_power_off_program()
452 	rtc_writel(rtc, OMAP_RTC_INTERRUPTS_REG,  in omap_rtc_power_off_program()
456 	if (rtc_read(rtc, OMAP_RTC_SECONDS_REG) != seconds) {  in omap_rtc_power_off_program()
457 		val = rtc_read(rtc, OMAP_RTC_STATUS_REG);  in omap_rtc_power_off_program()
462 	rtc->type->lock(rtc);  in omap_rtc_power_off_program()
484 	struct rtc_device *rtc = omap_rtc_power_off_rtc->rtc;  in omap_rtc_power_off()  local
487 	omap_rtc_power_off_program(rtc->dev.parent);  in omap_rtc_power_off()
601 	struct omap_rtc *rtc = pinctrl_dev_get_drvdata(pctldev);  in rtc_pinconf_get()  local
606 	val = rtc_readl(rtc, OMAP_RTC_PMIC_REG);  in rtc_pinconf_get()
630 	struct omap_rtc *rtc = pinctrl_dev_get_drvdata(pctldev);  in rtc_pinconf_set()  local
636 	val = rtc_readl(rtc, OMAP_RTC_PMIC_REG);  in rtc_pinconf_set()
656 			dev_err(&rtc->rtc->dev, "Property %u not supported\n",  in rtc_pinconf_set()
662 	rtc->type->unlock(rtc);  in rtc_pinconf_set()
663 	rtc_writel(rtc, OMAP_RTC_PMIC_REG, val);  in rtc_pinconf_set()
664 	rtc->type->lock(rtc);  in rtc_pinconf_set()
691 	struct omap_rtc	*rtc = priv;  in omap_rtc_scratch_read()  local
696 		val[i] = rtc_readl(rtc,  in omap_rtc_scratch_read()
705 	struct omap_rtc	*rtc = priv;  in omap_rtc_scratch_write()  local
709 	rtc->type->unlock(rtc);  in omap_rtc_scratch_write()
711 		rtc_writel(rtc,  in omap_rtc_scratch_write()
713 	rtc->type->lock(rtc);  in omap_rtc_scratch_write()
729 	struct omap_rtc	*rtc;  in omap_rtc_probe()  local
736 	rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);  in omap_rtc_probe()
737 	if (!rtc)  in omap_rtc_probe()
742 		rtc->type = of_id->data;  in omap_rtc_probe()
743 		rtc->is_pmic_controller = rtc->type->has_pmic_mode &&  in omap_rtc_probe()
747 		rtc->type = (void *)id_entry->driver_data;  in omap_rtc_probe()
750 	rtc->irq_timer = platform_get_irq(pdev, 0);  in omap_rtc_probe()
751 	if (rtc->irq_timer <= 0)  in omap_rtc_probe()
754 	rtc->irq_alarm = platform_get_irq(pdev, 1);  in omap_rtc_probe()
755 	if (rtc->irq_alarm <= 0)  in omap_rtc_probe()
758 	rtc->clk = devm_clk_get(&pdev->dev, "ext-clk");  in omap_rtc_probe()
759 	if (!IS_ERR(rtc->clk))  in omap_rtc_probe()
760 		rtc->has_ext_clk = true;  in omap_rtc_probe()
762 		rtc->clk = devm_clk_get(&pdev->dev, "int-clk");  in omap_rtc_probe()
764 	if (!IS_ERR(rtc->clk))  in omap_rtc_probe()
765 		clk_prepare_enable(rtc->clk);  in omap_rtc_probe()
768 	rtc->base = devm_ioremap_resource(&pdev->dev, res);  in omap_rtc_probe()
769 	if (IS_ERR(rtc->base)) {  in omap_rtc_probe()
770 		clk_disable_unprepare(rtc->clk);  in omap_rtc_probe()
771 		return PTR_ERR(rtc->base);  in omap_rtc_probe()
774 	platform_set_drvdata(pdev, rtc);  in omap_rtc_probe()
780 	rtc->type->unlock(rtc);  in omap_rtc_probe()
787 	rtc_writel(rtc, OMAP_RTC_INTERRUPTS_REG, 0);  in omap_rtc_probe()
790 	if (rtc->type->has_32kclk_en) {  in omap_rtc_probe()
791 		reg = rtc_read(rtc, OMAP_RTC_OSC_REG);  in omap_rtc_probe()
792 		rtc_writel(rtc, OMAP_RTC_OSC_REG,  in omap_rtc_probe()
797 	reg = rtc_read(rtc, OMAP_RTC_STATUS_REG);  in omap_rtc_probe()
801 	if (rtc->type->has_pmic_mode)  in omap_rtc_probe()
804 	if (rtc->type->has_power_up_reset) {  in omap_rtc_probe()
811 		rtc_write(rtc, OMAP_RTC_STATUS_REG, reg & mask);  in omap_rtc_probe()
814 	reg = rtc_read(rtc, OMAP_RTC_CTRL_REG);  in omap_rtc_probe()
841 		rtc_write(rtc, OMAP_RTC_CTRL_REG, new_ctrl);  in omap_rtc_probe()
847 	if (rtc->has_ext_clk) {  in omap_rtc_probe()
848 		reg = rtc_read(rtc, OMAP_RTC_OSC_REG);  in omap_rtc_probe()
851 		rtc_writel(rtc, OMAP_RTC_OSC_REG, reg);  in omap_rtc_probe()
854 	rtc->type->lock(rtc);  in omap_rtc_probe()
858 	rtc->rtc = devm_rtc_allocate_device(&pdev->dev);  in omap_rtc_probe()
859 	if (IS_ERR(rtc->rtc)) {  in omap_rtc_probe()
860 		ret = PTR_ERR(rtc->rtc);  in omap_rtc_probe()
864 	rtc->rtc->ops = &omap_rtc_ops;  in omap_rtc_probe()
865 	rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;  in omap_rtc_probe()
866 	rtc->rtc->range_max = RTC_TIMESTAMP_END_2099;  in omap_rtc_probe()
867 	omap_rtc_nvmem_config.priv = rtc;  in omap_rtc_probe()
870 	ret = devm_request_irq(&pdev->dev, rtc->irq_timer, rtc_irq, 0,  in omap_rtc_probe()
871 			dev_name(&rtc->rtc->dev), rtc);  in omap_rtc_probe()
875 	if (rtc->irq_timer != rtc->irq_alarm) {  in omap_rtc_probe()
876 		ret = devm_request_irq(&pdev->dev, rtc->irq_alarm, rtc_irq, 0,  in omap_rtc_probe()
877 				dev_name(&rtc->rtc->dev), rtc);  in omap_rtc_probe()
885 	rtc->pctldev = pinctrl_register(&rtc_pinctrl_desc, &pdev->dev, rtc);  in omap_rtc_probe()
886 	if (IS_ERR(rtc->pctldev)) {  in omap_rtc_probe()
888 		ret = PTR_ERR(rtc->pctldev);  in omap_rtc_probe()
892 	ret = rtc_register_device(rtc->rtc);  in omap_rtc_probe()
896 	rtc_nvmem_register(rtc->rtc, &omap_rtc_nvmem_config);  in omap_rtc_probe()
898 	if (rtc->is_pmic_controller) {  in omap_rtc_probe()
900 			omap_rtc_power_off_rtc = rtc;  in omap_rtc_probe()
908 	pinctrl_unregister(rtc->pctldev);  in omap_rtc_probe()
910 	clk_disable_unprepare(rtc->clk);  in omap_rtc_probe()
912 	rtc->type->lock(rtc);  in omap_rtc_probe()
921 	struct omap_rtc *rtc = platform_get_drvdata(pdev);  in omap_rtc_remove()  local
925 			omap_rtc_power_off_rtc == rtc) {  in omap_rtc_remove()
932 	if (!IS_ERR(rtc->clk))  in omap_rtc_remove()
933 		clk_disable_unprepare(rtc->clk);  in omap_rtc_remove()
935 	rtc->type->unlock(rtc);  in omap_rtc_remove()
937 	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, 0);  in omap_rtc_remove()
939 	if (rtc->has_ext_clk) {  in omap_rtc_remove()
940 		reg = rtc_read(rtc, OMAP_RTC_OSC_REG);  in omap_rtc_remove()
942 		rtc_write(rtc, OMAP_RTC_OSC_REG, reg);  in omap_rtc_remove()
945 	rtc->type->lock(rtc);  in omap_rtc_remove()
952 	pinctrl_unregister(rtc->pctldev);  in omap_rtc_remove()
959 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_suspend()  local
961 	rtc->interrupts_reg = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_suspend()
963 	rtc->type->unlock(rtc);  in omap_rtc_suspend()
970 		enable_irq_wake(rtc->irq_alarm);  in omap_rtc_suspend()
972 		rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, 0);  in omap_rtc_suspend()
973 	rtc->type->lock(rtc);  in omap_rtc_suspend()
975 	rtc->is_suspending = true;  in omap_rtc_suspend()
982 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_resume()  local
984 	rtc->type->unlock(rtc);  in omap_rtc_resume()
986 		disable_irq_wake(rtc->irq_alarm);  in omap_rtc_resume()
988 		rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, rtc->interrupts_reg);  in omap_rtc_resume()
989 	rtc->type->lock(rtc);  in omap_rtc_resume()
991 	rtc->is_suspending = false;  in omap_rtc_resume()
998 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_runtime_suspend()  local
1000 	if (rtc->is_suspending && !rtc->has_ext_clk)  in omap_rtc_runtime_suspend()
1013 	struct omap_rtc *rtc = platform_get_drvdata(pdev);  in omap_rtc_shutdown()  local
1020 	rtc->type->unlock(rtc);  in omap_rtc_shutdown()
1021 	mask = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_shutdown()
1023 	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, mask);  in omap_rtc_shutdown()
1024 	rtc->type->lock(rtc);  in omap_rtc_shutdown()