77 struct mt2712_rtc {  struct
85 static inline u32 mt2712_readl(struct mt2712_rtc *mt2712_rtc, u32 reg)  in mt2712_readl()  argument
87 	return readl(mt2712_rtc->base + reg);  in mt2712_readl()
90 static inline void mt2712_writel(struct mt2712_rtc *mt2712_rtc,  in mt2712_writel()  argument
93 	writel(val, mt2712_rtc->base + reg);  in mt2712_writel()
96 static void mt2712_rtc_write_trigger(struct mt2712_rtc *mt2712_rtc)  in mt2712_rtc_write_trigger()  argument
100 	mt2712_writel(mt2712_rtc, MT2712_WRTGR, 1);  in mt2712_rtc_write_trigger()
102 		if (!(mt2712_readl(mt2712_rtc, MT2712_BBPU)  in mt2712_rtc_write_trigger()
107 			dev_err(&mt2712_rtc->rtc->dev,  in mt2712_rtc_write_trigger()
115 static void mt2712_rtc_writeif_unlock(struct mt2712_rtc *mt2712_rtc)  in mt2712_rtc_writeif_unlock()  argument
117 	mt2712_writel(mt2712_rtc, MT2712_PROT, MT2712_PROT_UNLOCK1);  in mt2712_rtc_writeif_unlock()
118 	mt2712_rtc_write_trigger(mt2712_rtc);  in mt2712_rtc_writeif_unlock()
119 	mt2712_writel(mt2712_rtc, MT2712_PROT, MT2712_PROT_UNLOCK2);  in mt2712_rtc_writeif_unlock()
120 	mt2712_rtc_write_trigger(mt2712_rtc);  in mt2712_rtc_writeif_unlock()
125 	struct mt2712_rtc *mt2712_rtc = data;  in rtc_irq_handler_thread()  local
129 	irqsta = mt2712_readl(mt2712_rtc, MT2712_IRQ_STA);  in rtc_irq_handler_thread()
131 		rtc_update_irq(mt2712_rtc->rtc, 1, RTC_IRQF | RTC_AF);  in rtc_irq_handler_thread()
138 static void __mt2712_rtc_read_time(struct mt2712_rtc *mt2712_rtc,  in __mt2712_rtc_read_time()  argument
141 	tm->tm_sec  = mt2712_readl(mt2712_rtc, MT2712_TC_SEC)  in __mt2712_rtc_read_time()
143 	tm->tm_min  = mt2712_readl(mt2712_rtc, MT2712_TC_MIN)  in __mt2712_rtc_read_time()
145 	tm->tm_hour = mt2712_readl(mt2712_rtc, MT2712_TC_HOU)  in __mt2712_rtc_read_time()
147 	tm->tm_mday = mt2712_readl(mt2712_rtc, MT2712_TC_DOM)  in __mt2712_rtc_read_time()
149 	tm->tm_mon  = (mt2712_readl(mt2712_rtc, MT2712_TC_MTH) - 1)  in __mt2712_rtc_read_time()
151 	tm->tm_year = (mt2712_readl(mt2712_rtc, MT2712_TC_YEA) + 100)  in __mt2712_rtc_read_time()
154 	*sec = mt2712_readl(mt2712_rtc, MT2712_TC_SEC) & MT2712_SEC_MASK;  in __mt2712_rtc_read_time()
159 	struct mt2712_rtc *mt2712_rtc = dev_get_drvdata(dev);  in mt2712_rtc_read_time()  local
162 	if (mt2712_rtc->powerlost)  in mt2712_rtc_read_time()
166 		__mt2712_rtc_read_time(mt2712_rtc, tm, &sec);  in mt2712_rtc_read_time()
174 	struct mt2712_rtc *mt2712_rtc = dev_get_drvdata(dev);  in mt2712_rtc_set_time()  local
176 	mt2712_writel(mt2712_rtc, MT2712_TC_SEC, tm->tm_sec  & MT2712_SEC_MASK);  in mt2712_rtc_set_time()
177 	mt2712_writel(mt2712_rtc, MT2712_TC_MIN, tm->tm_min  & MT2712_MIN_MASK);  in mt2712_rtc_set_time()
178 	mt2712_writel(mt2712_rtc, MT2712_TC_HOU, tm->tm_hour & MT2712_HOU_MASK);  in mt2712_rtc_set_time()
179 	mt2712_writel(mt2712_rtc, MT2712_TC_DOM, tm->tm_mday & MT2712_DOM_MASK);  in mt2712_rtc_set_time()
180 	mt2712_writel(mt2712_rtc, MT2712_TC_MTH,  in mt2712_rtc_set_time()
182 	mt2712_writel(mt2712_rtc, MT2712_TC_YEA,  in mt2712_rtc_set_time()
185 	mt2712_rtc_write_trigger(mt2712_rtc);  in mt2712_rtc_set_time()
187 	if (mt2712_rtc->powerlost)  in mt2712_rtc_set_time()
188 		mt2712_rtc->powerlost = false;  in mt2712_rtc_set_time()
195 	struct mt2712_rtc *mt2712_rtc = dev_get_drvdata(dev);  in mt2712_rtc_read_alarm()  local
199 	irqen = mt2712_readl(mt2712_rtc, MT2712_IRQ_EN);  in mt2712_rtc_read_alarm()
202 	tm->tm_sec  = mt2712_readl(mt2712_rtc, MT2712_AL_SEC) & MT2712_SEC_MASK;  in mt2712_rtc_read_alarm()
203 	tm->tm_min  = mt2712_readl(mt2712_rtc, MT2712_AL_MIN) & MT2712_MIN_MASK;  in mt2712_rtc_read_alarm()
204 	tm->tm_hour = mt2712_readl(mt2712_rtc, MT2712_AL_HOU) & MT2712_HOU_MASK;  in mt2712_rtc_read_alarm()
205 	tm->tm_mday = mt2712_readl(mt2712_rtc, MT2712_AL_DOM) & MT2712_DOM_MASK;  in mt2712_rtc_read_alarm()
206 	tm->tm_mon  = (mt2712_readl(mt2712_rtc, MT2712_AL_MTH) - 1)  in mt2712_rtc_read_alarm()
208 	tm->tm_year = (mt2712_readl(mt2712_rtc, MT2712_AL_YEA) + 100)  in mt2712_rtc_read_alarm()
217 	struct mt2712_rtc *mt2712_rtc = dev_get_drvdata(dev);  in mt2712_rtc_alarm_irq_enable()  local
220 	irqen = mt2712_readl(mt2712_rtc, MT2712_IRQ_EN);  in mt2712_rtc_alarm_irq_enable()
225 	mt2712_writel(mt2712_rtc, MT2712_IRQ_EN, irqen);  in mt2712_rtc_alarm_irq_enable()
226 	mt2712_rtc_write_trigger(mt2712_rtc);  in mt2712_rtc_alarm_irq_enable()
233 	struct mt2712_rtc *mt2712_rtc = dev_get_drvdata(dev);  in mt2712_rtc_set_alarm()  local
236 	dev_dbg(&mt2712_rtc->rtc->dev, "set al time: %ptR, alm en: %d\n",  in mt2712_rtc_set_alarm()
239 	mt2712_writel(mt2712_rtc, MT2712_AL_SEC,  in mt2712_rtc_set_alarm()
240 		      (mt2712_readl(mt2712_rtc, MT2712_AL_SEC)  in mt2712_rtc_set_alarm()
242 	mt2712_writel(mt2712_rtc, MT2712_AL_MIN,  in mt2712_rtc_set_alarm()
243 		      (mt2712_readl(mt2712_rtc, MT2712_AL_MIN)  in mt2712_rtc_set_alarm()
245 	mt2712_writel(mt2712_rtc, MT2712_AL_HOU,  in mt2712_rtc_set_alarm()
246 		      (mt2712_readl(mt2712_rtc, MT2712_AL_HOU)  in mt2712_rtc_set_alarm()
248 	mt2712_writel(mt2712_rtc, MT2712_AL_DOM,  in mt2712_rtc_set_alarm()
249 		      (mt2712_readl(mt2712_rtc, MT2712_AL_DOM)  in mt2712_rtc_set_alarm()
251 	mt2712_writel(mt2712_rtc, MT2712_AL_MTH,  in mt2712_rtc_set_alarm()
252 		      (mt2712_readl(mt2712_rtc, MT2712_AL_MTH)  in mt2712_rtc_set_alarm()
255 	mt2712_writel(mt2712_rtc, MT2712_AL_YEA,  in mt2712_rtc_set_alarm()
256 		      (mt2712_readl(mt2712_rtc, MT2712_AL_YEA)  in mt2712_rtc_set_alarm()
261 	mt2712_writel(mt2712_rtc, MT2712_AL_MASK, MT2712_AL_MASK_DOW);  in mt2712_rtc_set_alarm()
262 	mt2712_rtc_write_trigger(mt2712_rtc);  in mt2712_rtc_set_alarm()
270 static void mt2712_rtc_hw_init(struct mt2712_rtc *mt2712_rtc)  in mt2712_rtc_hw_init()  argument
274 	mt2712_writel(mt2712_rtc, MT2712_BBPU,  in mt2712_rtc_hw_init()
277 	mt2712_writel(mt2712_rtc, MT2712_CII_EN, 0);  in mt2712_rtc_hw_init()
278 	mt2712_writel(mt2712_rtc, MT2712_AL_MASK, 0);  in mt2712_rtc_hw_init()
280 	mt2712_writel(mt2712_rtc, MT2712_CON0, 0x4848);  in mt2712_rtc_hw_init()
281 	mt2712_writel(mt2712_rtc, MT2712_CON1, 0x0048);  in mt2712_rtc_hw_init()
283 	mt2712_rtc_write_trigger(mt2712_rtc);  in mt2712_rtc_hw_init()
285 	p1 = mt2712_readl(mt2712_rtc, MT2712_POWERKEY1);  in mt2712_rtc_hw_init()
286 	p2 = mt2712_readl(mt2712_rtc, MT2712_POWERKEY2);  in mt2712_rtc_hw_init()
288 		mt2712_rtc->powerlost = true;  in mt2712_rtc_hw_init()
289 		dev_dbg(&mt2712_rtc->rtc->dev,  in mt2712_rtc_hw_init()
292 		mt2712_rtc->powerlost = false;  in mt2712_rtc_hw_init()
296 	mt2712_writel(mt2712_rtc, MT2712_POWERKEY1, MT2712_POWERKEY1_KEY);  in mt2712_rtc_hw_init()
297 	mt2712_writel(mt2712_rtc, MT2712_POWERKEY2, MT2712_POWERKEY2_KEY);  in mt2712_rtc_hw_init()
298 	mt2712_rtc_write_trigger(mt2712_rtc);  in mt2712_rtc_hw_init()
300 	mt2712_rtc_writeif_unlock(mt2712_rtc);  in mt2712_rtc_hw_init()
313 	struct mt2712_rtc *mt2712_rtc;  in mt2712_rtc_probe()  local
316 	mt2712_rtc = devm_kzalloc(&pdev->dev,  in mt2712_rtc_probe()
317 				  sizeof(struct mt2712_rtc), GFP_KERNEL);  in mt2712_rtc_probe()
318 	if (!mt2712_rtc)  in mt2712_rtc_probe()
321 	mt2712_rtc->base = devm_platform_ioremap_resource(pdev, 0);  in mt2712_rtc_probe()
322 	if (IS_ERR(mt2712_rtc->base))  in mt2712_rtc_probe()
323 		return PTR_ERR(mt2712_rtc->base);  in mt2712_rtc_probe()
326 	mt2712_rtc_hw_init(mt2712_rtc);  in mt2712_rtc_probe()
328 	mt2712_rtc->irq = platform_get_irq(pdev, 0);  in mt2712_rtc_probe()
329 	if (mt2712_rtc->irq < 0)  in mt2712_rtc_probe()
330 		return mt2712_rtc->irq;  in mt2712_rtc_probe()
332 	platform_set_drvdata(pdev, mt2712_rtc);  in mt2712_rtc_probe()
334 	mt2712_rtc->rtc = devm_rtc_allocate_device(&pdev->dev);  in mt2712_rtc_probe()
335 	if (IS_ERR(mt2712_rtc->rtc))  in mt2712_rtc_probe()
336 		return PTR_ERR(mt2712_rtc->rtc);  in mt2712_rtc_probe()
338 	ret = devm_request_threaded_irq(&pdev->dev, mt2712_rtc->irq, NULL,  in mt2712_rtc_probe()
341 					dev_name(&mt2712_rtc->rtc->dev),  in mt2712_rtc_probe()
342 					mt2712_rtc);  in mt2712_rtc_probe()
345 			mt2712_rtc->irq, ret);  in mt2712_rtc_probe()
351 	mt2712_rtc->rtc->ops = &mt2712_rtc_ops;  in mt2712_rtc_probe()
352 	mt2712_rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;  in mt2712_rtc_probe()
353 	mt2712_rtc->rtc->range_max = MT2712_RTC_TIMESTAMP_END_2127;  in mt2712_rtc_probe()
355 	return devm_rtc_register_device(mt2712_rtc->rtc);  in mt2712_rtc_probe()
362 	struct mt2712_rtc *mt2712_rtc = dev_get_drvdata(dev);  in mt2712_rtc_suspend()  local
365 		wake_status = enable_irq_wake(mt2712_rtc->irq);  in mt2712_rtc_suspend()
367 			mt2712_rtc->irq_wake_enabled = true;  in mt2712_rtc_suspend()
376 	struct mt2712_rtc *mt2712_rtc = dev_get_drvdata(dev);  in mt2712_rtc_resume()  local
378 	if (device_may_wakeup(dev) && mt2712_rtc->irq_wake_enabled) {  in mt2712_rtc_resume()
379 		wake_status = disable_irq_wake(mt2712_rtc->irq);  in mt2712_rtc_resume()
381 			mt2712_rtc->irq_wake_enabled = false;  in mt2712_rtc_resume()