58 static void rtc_delayed_write(u32 val, struct armada38x_rtc *rtc, int offset)  in rtc_delayed_write()  argument
60 	writel(val, rtc->regs + offset);  in rtc_delayed_write()
66 	struct armada38x_rtc *rtc = dev_get_drvdata(dev);  in armada38x_rtc_read_time()  local
69 	mutex_lock(&rtc->mutex_time);  in armada38x_rtc_read_time()
70 	time = readl(rtc->regs + RTC_TIME);  in armada38x_rtc_read_time()
76 	time_check = readl(rtc->regs + RTC_TIME);  in armada38x_rtc_read_time()
78 		time_check = readl(rtc->regs + RTC_TIME);  in armada38x_rtc_read_time()
80 	mutex_unlock(&rtc->mutex_time);  in armada38x_rtc_read_time()
89 	struct armada38x_rtc *rtc = dev_get_drvdata(dev);  in armada38x_rtc_set_time()  local
103 	mutex_lock(&rtc->mutex_time);  in armada38x_rtc_set_time()
104 	rtc_delayed_write(0, rtc, RTC_STATUS);  in armada38x_rtc_set_time()
106 	rtc_delayed_write(time, rtc, RTC_TIME);  in armada38x_rtc_set_time()
107 	mutex_unlock(&rtc->mutex_time);  in armada38x_rtc_set_time()
115 	struct armada38x_rtc *rtc = dev_get_drvdata(dev);  in armada38x_rtc_read_alarm()  local
119 	spin_lock_irqsave(&rtc->lock, flags);  in armada38x_rtc_read_alarm()
121 	time = readl(rtc->regs + RTC_ALARM1);  in armada38x_rtc_read_alarm()
122 	val = readl(rtc->regs + RTC_IRQ1_CONF) & RTC_IRQ1_AL_EN;  in armada38x_rtc_read_alarm()
124 	spin_unlock_irqrestore(&rtc->lock, flags);  in armada38x_rtc_read_alarm()
134 	struct armada38x_rtc *rtc = dev_get_drvdata(dev);  in armada38x_rtc_set_alarm()  local
144 	spin_lock_irqsave(&rtc->lock, flags);  in armada38x_rtc_set_alarm()
146 	rtc_delayed_write(time, rtc, RTC_ALARM1);  in armada38x_rtc_set_alarm()
149 			rtc_delayed_write(RTC_IRQ1_AL_EN, rtc, RTC_IRQ1_CONF);  in armada38x_rtc_set_alarm()
150 			val = readl(rtc->regs_soc + SOC_RTC_INTERRUPT);  in armada38x_rtc_set_alarm()
152 			       rtc->regs_soc + SOC_RTC_INTERRUPT);  in armada38x_rtc_set_alarm()
155 	spin_unlock_irqrestore(&rtc->lock, flags);  in armada38x_rtc_set_alarm()
164 	struct armada38x_rtc *rtc = dev_get_drvdata(dev);  in armada38x_rtc_alarm_irq_enable()  local
167 	spin_lock_irqsave(&rtc->lock, flags);  in armada38x_rtc_alarm_irq_enable()
170 		rtc_delayed_write(RTC_IRQ1_AL_EN, rtc, RTC_IRQ1_CONF);  in armada38x_rtc_alarm_irq_enable()
172 		rtc_delayed_write(0, rtc, RTC_IRQ1_CONF);  in armada38x_rtc_alarm_irq_enable()
174 	spin_unlock_irqrestore(&rtc->lock, flags);  in armada38x_rtc_alarm_irq_enable()
181 	struct armada38x_rtc *rtc = data;  in armada38x_rtc_alarm_irq()  local
185 	dev_dbg(&rtc->rtc_dev->dev, "%s:irq(%d)\n", __func__, irq);  in armada38x_rtc_alarm_irq()
187 	spin_lock(&rtc->lock);  in armada38x_rtc_alarm_irq()
189 	val = readl(rtc->regs_soc + SOC_RTC_INTERRUPT);  in armada38x_rtc_alarm_irq()
191 	writel(val & ~SOC_RTC_ALARM1, rtc->regs_soc + SOC_RTC_INTERRUPT);  in armada38x_rtc_alarm_irq()
192 	val = readl(rtc->regs + RTC_IRQ1_CONF);  in armada38x_rtc_alarm_irq()
194 	rtc_delayed_write(0, rtc, RTC_IRQ1_CONF);  in armada38x_rtc_alarm_irq()
196 	rtc_delayed_write(RTC_STATUS_ALARM1, rtc, RTC_STATUS);  in armada38x_rtc_alarm_irq()
198 	spin_unlock(&rtc->lock);  in armada38x_rtc_alarm_irq()
207 	rtc_update_irq(rtc->rtc_dev, 1, event);  in armada38x_rtc_alarm_irq()
223 	struct armada38x_rtc *rtc;  in armada38x_rtc_probe()  local
226 	rtc = devm_kzalloc(&pdev->dev, sizeof(struct armada38x_rtc),  in armada38x_rtc_probe()
228 	if (!rtc)  in armada38x_rtc_probe()
231 	spin_lock_init(&rtc->lock);  in armada38x_rtc_probe()
232 	mutex_init(&rtc->mutex_time);  in armada38x_rtc_probe()
235 	rtc->regs = devm_ioremap_resource(&pdev->dev, res);  in armada38x_rtc_probe()
236 	if (IS_ERR(rtc->regs))  in armada38x_rtc_probe()
237 		return PTR_ERR(rtc->regs);  in armada38x_rtc_probe()
239 	rtc->regs_soc = devm_ioremap_resource(&pdev->dev, res);  in armada38x_rtc_probe()
240 	if (IS_ERR(rtc->regs_soc))  in armada38x_rtc_probe()
241 		return PTR_ERR(rtc->regs_soc);  in armada38x_rtc_probe()
243 	rtc->irq = platform_get_irq(pdev, 0);  in armada38x_rtc_probe()
245 	if (rtc->irq < 0) {  in armada38x_rtc_probe()
247 		return rtc->irq;  in armada38x_rtc_probe()
249 	if (devm_request_irq(&pdev->dev, rtc->irq, armada38x_rtc_alarm_irq,  in armada38x_rtc_probe()
250 				0, pdev->name, rtc) < 0) {  in armada38x_rtc_probe()
252 		rtc->irq = -1;  in armada38x_rtc_probe()
260 	platform_set_drvdata(pdev, rtc);  in armada38x_rtc_probe()
261 	if (rtc->irq != -1)  in armada38x_rtc_probe()
264 	rtc->rtc_dev = devm_rtc_device_register(&pdev->dev, pdev->name,  in armada38x_rtc_probe()
266 	if (IS_ERR(rtc->rtc_dev)) {  in armada38x_rtc_probe()
267 		ret = PTR_ERR(rtc->rtc_dev);  in armada38x_rtc_probe()
278 		struct armada38x_rtc *rtc = dev_get_drvdata(dev);  in armada38x_rtc_suspend()  local
280 		return enable_irq_wake(rtc->irq);  in armada38x_rtc_suspend()
289 		struct armada38x_rtc *rtc = dev_get_drvdata(dev);  in armada38x_rtc_resume()  local
291 		return disable_irq_wake(rtc->irq);  in armada38x_rtc_resume()