141 	void (*lock)(struct omap_rtc *rtc);
142 	void (*unlock)(struct omap_rtc *rtc);
146 	struct rtc_device *rtc;  member
159 static inline u8 rtc_read(struct omap_rtc *rtc, unsigned int reg)  in rtc_read()  argument
161 	return readb(rtc->base + reg);  in rtc_read()
164 static inline u32 rtc_readl(struct omap_rtc *rtc, unsigned int reg)  in rtc_readl()  argument
166 	return readl(rtc->base + reg);  in rtc_readl()
169 static inline void rtc_write(struct omap_rtc *rtc, unsigned int reg, u8 val)  in rtc_write()  argument
171 	writeb(val, rtc->base + reg);  in rtc_write()
174 static inline void rtc_writel(struct omap_rtc *rtc, unsigned int reg, u32 val)  in rtc_writel()  argument
176 	writel(val, rtc->base + reg);  in rtc_writel()
179 static void am3352_rtc_unlock(struct omap_rtc *rtc)  in am3352_rtc_unlock()  argument
181 	rtc_writel(rtc, OMAP_RTC_KICK0_REG, KICK0_VALUE);  in am3352_rtc_unlock()
182 	rtc_writel(rtc, OMAP_RTC_KICK1_REG, KICK1_VALUE);  in am3352_rtc_unlock()
185 static void am3352_rtc_lock(struct omap_rtc *rtc)  in am3352_rtc_lock()  argument
187 	rtc_writel(rtc, OMAP_RTC_KICK0_REG, 0);  in am3352_rtc_lock()
188 	rtc_writel(rtc, OMAP_RTC_KICK1_REG, 0);  in am3352_rtc_lock()
191 static void default_rtc_unlock(struct omap_rtc *rtc)  in default_rtc_unlock()  argument
195 static void default_rtc_lock(struct omap_rtc *rtc)  in default_rtc_lock()  argument
204 static void rtc_wait_not_busy(struct omap_rtc *rtc)  in rtc_wait_not_busy()  argument
211 		status = rtc_read(rtc, OMAP_RTC_STATUS_REG);  in rtc_wait_not_busy()
221 	struct omap_rtc	*rtc = dev_id;  in rtc_irq()  local
225 	irq_data = rtc_read(rtc, OMAP_RTC_STATUS_REG);  in rtc_irq()
229 		rtc->type->unlock(rtc);  in rtc_irq()
230 		rtc_write(rtc, OMAP_RTC_STATUS_REG, OMAP_RTC_STATUS_ALARM);  in rtc_irq()
231 		rtc->type->lock(rtc);  in rtc_irq()
239 	rtc_update_irq(rtc->rtc, 1, events);  in rtc_irq()
246 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_alarm_irq_enable()  local
250 	rtc_wait_not_busy(rtc);  in omap_rtc_alarm_irq_enable()
251 	reg = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_alarm_irq_enable()
252 	if (rtc->type->has_irqwakeen)  in omap_rtc_alarm_irq_enable()
253 		irqwake_reg = rtc_read(rtc, OMAP_RTC_IRQWAKEEN);  in omap_rtc_alarm_irq_enable()
262 	rtc_wait_not_busy(rtc);  in omap_rtc_alarm_irq_enable()
263 	rtc->type->unlock(rtc);  in omap_rtc_alarm_irq_enable()
264 	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, reg);  in omap_rtc_alarm_irq_enable()
265 	if (rtc->type->has_irqwakeen)  in omap_rtc_alarm_irq_enable()
266 		rtc_write(rtc, OMAP_RTC_IRQWAKEEN, irqwake_reg);  in omap_rtc_alarm_irq_enable()
267 	rtc->type->lock(rtc);  in omap_rtc_alarm_irq_enable()
302 static void omap_rtc_read_time_raw(struct omap_rtc *rtc, struct rtc_time *tm)  in omap_rtc_read_time_raw()  argument
304 	tm->tm_sec = rtc_read(rtc, OMAP_RTC_SECONDS_REG);  in omap_rtc_read_time_raw()
305 	tm->tm_min = rtc_read(rtc, OMAP_RTC_MINUTES_REG);  in omap_rtc_read_time_raw()
306 	tm->tm_hour = rtc_read(rtc, OMAP_RTC_HOURS_REG);  in omap_rtc_read_time_raw()
307 	tm->tm_mday = rtc_read(rtc, OMAP_RTC_DAYS_REG);  in omap_rtc_read_time_raw()
308 	tm->tm_mon = rtc_read(rtc, OMAP_RTC_MONTHS_REG);  in omap_rtc_read_time_raw()
309 	tm->tm_year = rtc_read(rtc, OMAP_RTC_YEARS_REG);  in omap_rtc_read_time_raw()
314 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_read_time()  local
318 	rtc_wait_not_busy(rtc);  in omap_rtc_read_time()
319 	omap_rtc_read_time_raw(rtc, tm);  in omap_rtc_read_time()
329 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_set_time()  local
335 	rtc_wait_not_busy(rtc);  in omap_rtc_set_time()
337 	rtc->type->unlock(rtc);  in omap_rtc_set_time()
338 	rtc_write(rtc, OMAP_RTC_YEARS_REG, tm->tm_year);  in omap_rtc_set_time()
339 	rtc_write(rtc, OMAP_RTC_MONTHS_REG, tm->tm_mon);  in omap_rtc_set_time()
340 	rtc_write(rtc, OMAP_RTC_DAYS_REG, tm->tm_mday);  in omap_rtc_set_time()
341 	rtc_write(rtc, OMAP_RTC_HOURS_REG, tm->tm_hour);  in omap_rtc_set_time()
342 	rtc_write(rtc, OMAP_RTC_MINUTES_REG, tm->tm_min);  in omap_rtc_set_time()
343 	rtc_write(rtc, OMAP_RTC_SECONDS_REG, tm->tm_sec);  in omap_rtc_set_time()
344 	rtc->type->lock(rtc);  in omap_rtc_set_time()
353 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_read_alarm()  local
357 	rtc_wait_not_busy(rtc);  in omap_rtc_read_alarm()
359 	alm->time.tm_sec = rtc_read(rtc, OMAP_RTC_ALARM_SECONDS_REG);  in omap_rtc_read_alarm()
360 	alm->time.tm_min = rtc_read(rtc, OMAP_RTC_ALARM_MINUTES_REG);  in omap_rtc_read_alarm()
361 	alm->time.tm_hour = rtc_read(rtc, OMAP_RTC_ALARM_HOURS_REG);  in omap_rtc_read_alarm()
362 	alm->time.tm_mday = rtc_read(rtc, OMAP_RTC_ALARM_DAYS_REG);  in omap_rtc_read_alarm()
363 	alm->time.tm_mon = rtc_read(rtc, OMAP_RTC_ALARM_MONTHS_REG);  in omap_rtc_read_alarm()
364 	alm->time.tm_year = rtc_read(rtc, OMAP_RTC_ALARM_YEARS_REG);  in omap_rtc_read_alarm()
370 	interrupts = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_read_alarm()
378 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_set_alarm()  local
385 	rtc_wait_not_busy(rtc);  in omap_rtc_set_alarm()
387 	rtc->type->unlock(rtc);  in omap_rtc_set_alarm()
388 	rtc_write(rtc, OMAP_RTC_ALARM_YEARS_REG, alm->time.tm_year);  in omap_rtc_set_alarm()
389 	rtc_write(rtc, OMAP_RTC_ALARM_MONTHS_REG, alm->time.tm_mon);  in omap_rtc_set_alarm()
390 	rtc_write(rtc, OMAP_RTC_ALARM_DAYS_REG, alm->time.tm_mday);  in omap_rtc_set_alarm()
391 	rtc_write(rtc, OMAP_RTC_ALARM_HOURS_REG, alm->time.tm_hour);  in omap_rtc_set_alarm()
392 	rtc_write(rtc, OMAP_RTC_ALARM_MINUTES_REG, alm->time.tm_min);  in omap_rtc_set_alarm()
393 	rtc_write(rtc, OMAP_RTC_ALARM_SECONDS_REG, alm->time.tm_sec);  in omap_rtc_set_alarm()
395 	reg = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_set_alarm()
396 	if (rtc->type->has_irqwakeen)  in omap_rtc_set_alarm()
397 		irqwake_reg = rtc_read(rtc, OMAP_RTC_IRQWAKEEN);  in omap_rtc_set_alarm()
406 	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, reg);  in omap_rtc_set_alarm()
407 	if (rtc->type->has_irqwakeen)  in omap_rtc_set_alarm()
408 		rtc_write(rtc, OMAP_RTC_IRQWAKEEN, irqwake_reg);  in omap_rtc_set_alarm()
409 	rtc->type->lock(rtc);  in omap_rtc_set_alarm()
434 	struct omap_rtc *rtc = omap_rtc_power_off_rtc;  in omap_rtc_power_off()  local
439 	rtc->type->unlock(rtc);  in omap_rtc_power_off()
441 	val = rtc_readl(rtc, OMAP_RTC_PMIC_REG);  in omap_rtc_power_off()
442 	rtc_writel(rtc, OMAP_RTC_PMIC_REG, val | OMAP_RTC_PMIC_POWER_EN_EN);  in omap_rtc_power_off()
445 	omap_rtc_read_time_raw(rtc, &tm);  in omap_rtc_power_off()
451 		dev_err(&rtc->rtc->dev, "power off failed\n");  in omap_rtc_power_off()
452 		rtc->type->lock(rtc);  in omap_rtc_power_off()
456 	rtc_wait_not_busy(rtc);  in omap_rtc_power_off()
458 	rtc_write(rtc, OMAP_RTC_ALARM2_SECONDS_REG, tm.tm_sec);  in omap_rtc_power_off()
459 	rtc_write(rtc, OMAP_RTC_ALARM2_MINUTES_REG, tm.tm_min);  in omap_rtc_power_off()
460 	rtc_write(rtc, OMAP_RTC_ALARM2_HOURS_REG, tm.tm_hour);  in omap_rtc_power_off()
461 	rtc_write(rtc, OMAP_RTC_ALARM2_DAYS_REG, tm.tm_mday);  in omap_rtc_power_off()
462 	rtc_write(rtc, OMAP_RTC_ALARM2_MONTHS_REG, tm.tm_mon);  in omap_rtc_power_off()
463 	rtc_write(rtc, OMAP_RTC_ALARM2_YEARS_REG, tm.tm_year);  in omap_rtc_power_off()
470 	val = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_power_off()
471 	rtc_writel(rtc, OMAP_RTC_INTERRUPTS_REG,  in omap_rtc_power_off()
473 	rtc->type->lock(rtc);  in omap_rtc_power_off()
581 	struct omap_rtc *rtc = pinctrl_dev_get_drvdata(pctldev);  in rtc_pinconf_get()  local
586 	val = rtc_readl(rtc, OMAP_RTC_PMIC_REG);  in rtc_pinconf_get()
610 	struct omap_rtc *rtc = pinctrl_dev_get_drvdata(pctldev);  in rtc_pinconf_set()  local
616 	val = rtc_readl(rtc, OMAP_RTC_PMIC_REG);  in rtc_pinconf_set()
636 			dev_err(&rtc->rtc->dev, "Property %u not supported\n",  in rtc_pinconf_set()
642 	rtc->type->unlock(rtc);  in rtc_pinconf_set()
643 	rtc_writel(rtc, OMAP_RTC_PMIC_REG, val);  in rtc_pinconf_set()
644 	rtc->type->lock(rtc);  in rtc_pinconf_set()
671 	struct omap_rtc	*rtc = priv;  in omap_rtc_scratch_read()  local
676 		val[i] = rtc_readl(rtc,  in omap_rtc_scratch_read()
685 	struct omap_rtc	*rtc = priv;  in omap_rtc_scratch_write()  local
689 	rtc->type->unlock(rtc);  in omap_rtc_scratch_write()
691 		rtc_writel(rtc,  in omap_rtc_scratch_write()
693 	rtc->type->lock(rtc);  in omap_rtc_scratch_write()
709 	struct omap_rtc	*rtc;  in omap_rtc_probe()  local
716 	rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);  in omap_rtc_probe()
717 	if (!rtc)  in omap_rtc_probe()
722 		rtc->type = of_id->data;  in omap_rtc_probe()
723 		rtc->is_pmic_controller = rtc->type->has_pmic_mode &&  in omap_rtc_probe()
728 		rtc->type = (void *)id_entry->driver_data;  in omap_rtc_probe()
731 	rtc->irq_timer = platform_get_irq(pdev, 0);  in omap_rtc_probe()
732 	if (rtc->irq_timer <= 0)  in omap_rtc_probe()
735 	rtc->irq_alarm = platform_get_irq(pdev, 1);  in omap_rtc_probe()
736 	if (rtc->irq_alarm <= 0)  in omap_rtc_probe()
739 	rtc->clk = devm_clk_get(&pdev->dev, "ext-clk");  in omap_rtc_probe()
740 	if (!IS_ERR(rtc->clk))  in omap_rtc_probe()
741 		rtc->has_ext_clk = true;  in omap_rtc_probe()
743 		rtc->clk = devm_clk_get(&pdev->dev, "int-clk");  in omap_rtc_probe()
745 	if (!IS_ERR(rtc->clk))  in omap_rtc_probe()
746 		clk_prepare_enable(rtc->clk);  in omap_rtc_probe()
749 	rtc->base = devm_ioremap_resource(&pdev->dev, res);  in omap_rtc_probe()
750 	if (IS_ERR(rtc->base)) {  in omap_rtc_probe()
751 		clk_disable_unprepare(rtc->clk);  in omap_rtc_probe()
752 		return PTR_ERR(rtc->base);  in omap_rtc_probe()
755 	platform_set_drvdata(pdev, rtc);  in omap_rtc_probe()
761 	rtc->type->unlock(rtc);  in omap_rtc_probe()
768 	rtc_writel(rtc, OMAP_RTC_INTERRUPTS_REG, 0);  in omap_rtc_probe()
771 	if (rtc->type->has_32kclk_en) {  in omap_rtc_probe()
772 		reg = rtc_read(rtc, OMAP_RTC_OSC_REG);  in omap_rtc_probe()
773 		rtc_writel(rtc, OMAP_RTC_OSC_REG,  in omap_rtc_probe()
778 	reg = rtc_read(rtc, OMAP_RTC_STATUS_REG);  in omap_rtc_probe()
782 	if (rtc->type->has_pmic_mode)  in omap_rtc_probe()
785 	if (rtc->type->has_power_up_reset) {  in omap_rtc_probe()
792 		rtc_write(rtc, OMAP_RTC_STATUS_REG, reg & mask);  in omap_rtc_probe()
795 	reg = rtc_read(rtc, OMAP_RTC_CTRL_REG);  in omap_rtc_probe()
822 		rtc_write(rtc, OMAP_RTC_CTRL_REG, new_ctrl);  in omap_rtc_probe()
828 	if (rtc->has_ext_clk) {  in omap_rtc_probe()
829 		reg = rtc_read(rtc, OMAP_RTC_OSC_REG);  in omap_rtc_probe()
832 		rtc_writel(rtc, OMAP_RTC_OSC_REG, reg);  in omap_rtc_probe()
835 	rtc->type->lock(rtc);  in omap_rtc_probe()
839 	rtc->rtc = devm_rtc_allocate_device(&pdev->dev);  in omap_rtc_probe()
840 	if (IS_ERR(rtc->rtc)) {  in omap_rtc_probe()
841 		ret = PTR_ERR(rtc->rtc);  in omap_rtc_probe()
845 	rtc->rtc->ops = &omap_rtc_ops;  in omap_rtc_probe()
846 	omap_rtc_nvmem_config.priv = rtc;  in omap_rtc_probe()
849 	ret = devm_request_irq(&pdev->dev, rtc->irq_timer, rtc_irq, 0,  in omap_rtc_probe()
850 			dev_name(&rtc->rtc->dev), rtc);  in omap_rtc_probe()
854 	if (rtc->irq_timer != rtc->irq_alarm) {  in omap_rtc_probe()
855 		ret = devm_request_irq(&pdev->dev, rtc->irq_alarm, rtc_irq, 0,  in omap_rtc_probe()
856 				dev_name(&rtc->rtc->dev), rtc);  in omap_rtc_probe()
864 	rtc->pctldev = pinctrl_register(&rtc_pinctrl_desc, &pdev->dev, rtc);  in omap_rtc_probe()
865 	if (IS_ERR(rtc->pctldev)) {  in omap_rtc_probe()
867 		ret = PTR_ERR(rtc->pctldev);  in omap_rtc_probe()
871 	ret = rtc_register_device(rtc->rtc);  in omap_rtc_probe()
875 	rtc_nvmem_register(rtc->rtc, &omap_rtc_nvmem_config);  in omap_rtc_probe()
877 	if (rtc->is_pmic_controller) {  in omap_rtc_probe()
879 			omap_rtc_power_off_rtc = rtc;  in omap_rtc_probe()
887 	pinctrl_unregister(rtc->pctldev);  in omap_rtc_probe()
889 	clk_disable_unprepare(rtc->clk);  in omap_rtc_probe()
891 	rtc->type->lock(rtc);  in omap_rtc_probe()
900 	struct omap_rtc *rtc = platform_get_drvdata(pdev);  in omap_rtc_remove()  local
904 			omap_rtc_power_off_rtc == rtc) {  in omap_rtc_remove()
911 	if (!IS_ERR(rtc->clk))  in omap_rtc_remove()
912 		clk_disable_unprepare(rtc->clk);  in omap_rtc_remove()
914 	rtc->type->unlock(rtc);  in omap_rtc_remove()
916 	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, 0);  in omap_rtc_remove()
918 	if (rtc->has_ext_clk) {  in omap_rtc_remove()
919 		reg = rtc_read(rtc, OMAP_RTC_OSC_REG);  in omap_rtc_remove()
921 		rtc_write(rtc, OMAP_RTC_OSC_REG, reg);  in omap_rtc_remove()
924 	rtc->type->lock(rtc);  in omap_rtc_remove()
931 	pinctrl_unregister(rtc->pctldev);  in omap_rtc_remove()
938 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_suspend()  local
940 	rtc->interrupts_reg = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_suspend()
942 	rtc->type->unlock(rtc);  in omap_rtc_suspend()
949 		enable_irq_wake(rtc->irq_alarm);  in omap_rtc_suspend()
951 		rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, 0);  in omap_rtc_suspend()
952 	rtc->type->lock(rtc);  in omap_rtc_suspend()
954 	rtc->is_suspending = true;  in omap_rtc_suspend()
961 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_resume()  local
963 	rtc->type->unlock(rtc);  in omap_rtc_resume()
965 		disable_irq_wake(rtc->irq_alarm);  in omap_rtc_resume()
967 		rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, rtc->interrupts_reg);  in omap_rtc_resume()
968 	rtc->type->lock(rtc);  in omap_rtc_resume()
970 	rtc->is_suspending = false;  in omap_rtc_resume()
977 	struct omap_rtc *rtc = dev_get_drvdata(dev);  in omap_rtc_runtime_suspend()  local
979 	if (rtc->is_suspending && !rtc->has_ext_clk)  in omap_rtc_runtime_suspend()
992 	struct omap_rtc *rtc = platform_get_drvdata(pdev);  in omap_rtc_shutdown()  local
999 	rtc->type->unlock(rtc);  in omap_rtc_shutdown()
1000 	mask = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);  in omap_rtc_shutdown()
1002 	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, mask);  in omap_rtc_shutdown()
1003 	rtc->type->lock(rtc);  in omap_rtc_shutdown()