71 static inline u32 tegra_rtc_check_busy(struct tegra_rtc_info *info)  in tegra_rtc_check_busy()  argument
73 	return readl(info->rtc_base + TEGRA_RTC_REG_BUSY) & 1;  in tegra_rtc_check_busy()
87 	struct tegra_rtc_info *info = dev_get_drvdata(dev);  in tegra_rtc_wait_while_busy()  local
93 	while (tegra_rtc_check_busy(info)) {  in tegra_rtc_wait_while_busy()
109 	struct tegra_rtc_info *info = dev_get_drvdata(dev);  in tegra_rtc_read_time()  local
115 	spin_lock_irqsave(&info->tegra_rtc_lock, sl_irq_flags);  in tegra_rtc_read_time()
117 	msec = readl(info->rtc_base + TEGRA_RTC_REG_MILLI_SECONDS);  in tegra_rtc_read_time()
118 	sec = readl(info->rtc_base + TEGRA_RTC_REG_SHADOW_SECONDS);  in tegra_rtc_read_time()
120 	spin_unlock_irqrestore(&info->tegra_rtc_lock, sl_irq_flags);  in tegra_rtc_read_time()
139 	struct tegra_rtc_info *info = dev_get_drvdata(dev);  in tegra_rtc_set_time()  local
163 		writel(sec, info->rtc_base + TEGRA_RTC_REG_SECONDS);  in tegra_rtc_set_time()
166 		readl(info->rtc_base + TEGRA_RTC_REG_SECONDS));  in tegra_rtc_set_time()
173 	struct tegra_rtc_info *info = dev_get_drvdata(dev);  in tegra_rtc_read_alarm()  local
177 	sec = readl(info->rtc_base + TEGRA_RTC_REG_SECONDS_ALARM0);  in tegra_rtc_read_alarm()
194 	tmp = readl(info->rtc_base + TEGRA_RTC_REG_INTR_STATUS);  in tegra_rtc_read_alarm()
202 	struct tegra_rtc_info *info = dev_get_drvdata(dev);  in tegra_rtc_alarm_irq_enable()  local
207 	spin_lock_irqsave(&info->tegra_rtc_lock, sl_irq_flags);  in tegra_rtc_alarm_irq_enable()
210 	status = readl(info->rtc_base + TEGRA_RTC_REG_INTR_MASK);  in tegra_rtc_alarm_irq_enable()
216 	writel(status, info->rtc_base + TEGRA_RTC_REG_INTR_MASK);  in tegra_rtc_alarm_irq_enable()
218 	spin_unlock_irqrestore(&info->tegra_rtc_lock, sl_irq_flags);  in tegra_rtc_alarm_irq_enable()
225 	struct tegra_rtc_info *info = dev_get_drvdata(dev);  in tegra_rtc_set_alarm()  local
234 	writel(sec, info->rtc_base + TEGRA_RTC_REG_SECONDS_ALARM0);  in tegra_rtc_set_alarm()
236 		readl(info->rtc_base + TEGRA_RTC_REG_SECONDS_ALARM0));  in tegra_rtc_set_alarm()
272 	struct tegra_rtc_info *info = dev_get_drvdata(dev);  in tegra_rtc_irq_handler()  local
277 	status = readl(info->rtc_base + TEGRA_RTC_REG_INTR_STATUS);  in tegra_rtc_irq_handler()
281 		spin_lock_irqsave(&info->tegra_rtc_lock, sl_irq_flags);  in tegra_rtc_irq_handler()
282 		writel(0, info->rtc_base + TEGRA_RTC_REG_INTR_MASK);  in tegra_rtc_irq_handler()
283 		writel(status, info->rtc_base + TEGRA_RTC_REG_INTR_STATUS);  in tegra_rtc_irq_handler()
284 		spin_unlock_irqrestore(&info->tegra_rtc_lock, sl_irq_flags);  in tegra_rtc_irq_handler()
295 	rtc_update_irq(info->rtc_dev, 1, events);  in tegra_rtc_irq_handler()
317 	struct tegra_rtc_info *info;  in tegra_rtc_probe()  local
321 	info = devm_kzalloc(&pdev->dev, sizeof(struct tegra_rtc_info),  in tegra_rtc_probe()
323 	if (!info)  in tegra_rtc_probe()
327 	info->rtc_base = devm_ioremap_resource(&pdev->dev, res);  in tegra_rtc_probe()
328 	if (IS_ERR(info->rtc_base))  in tegra_rtc_probe()
329 		return PTR_ERR(info->rtc_base);  in tegra_rtc_probe()
331 	info->tegra_rtc_irq = platform_get_irq(pdev, 0);  in tegra_rtc_probe()
332 	if (info->tegra_rtc_irq <= 0)  in tegra_rtc_probe()
336 	info->pdev = pdev;  in tegra_rtc_probe()
337 	spin_lock_init(&info->tegra_rtc_lock);  in tegra_rtc_probe()
339 	platform_set_drvdata(pdev, info);  in tegra_rtc_probe()
342 	writel(0, info->rtc_base + TEGRA_RTC_REG_SECONDS_ALARM0);  in tegra_rtc_probe()
343 	writel(0xffffffff, info->rtc_base + TEGRA_RTC_REG_INTR_STATUS);  in tegra_rtc_probe()
344 	writel(0, info->rtc_base + TEGRA_RTC_REG_INTR_MASK);  in tegra_rtc_probe()
348 	info->rtc_dev = devm_rtc_device_register(&pdev->dev,  in tegra_rtc_probe()
351 	if (IS_ERR(info->rtc_dev)) {  in tegra_rtc_probe()
352 		ret = PTR_ERR(info->rtc_dev);  in tegra_rtc_probe()
358 	ret = devm_request_irq(&pdev->dev, info->tegra_rtc_irq,  in tegra_rtc_probe()
376 	struct tegra_rtc_info *info = dev_get_drvdata(dev);  in tegra_rtc_suspend()  local
381 	writel(0xffffffff, info->rtc_base + TEGRA_RTC_REG_INTR_STATUS);  in tegra_rtc_suspend()
383 		info->rtc_base + TEGRA_RTC_REG_INTR_MASK);  in tegra_rtc_suspend()
386 		readl(info->rtc_base + TEGRA_RTC_REG_SECONDS_ALARM0));  in tegra_rtc_suspend()
389 		device_may_wakeup(dev), info->tegra_rtc_irq);  in tegra_rtc_suspend()
393 		enable_irq_wake(info->tegra_rtc_irq);  in tegra_rtc_suspend()
400 	struct tegra_rtc_info *info = dev_get_drvdata(dev);  in tegra_rtc_resume()  local
406 		disable_irq_wake(info->tegra_rtc_irq);  in tegra_rtc_resume()