87 static void cdns_rtc_set_enabled(struct cdns_rtc *crtc, bool enabled)  in cdns_rtc_set_enabled()  argument
91 	writel(reg, crtc->regs + CDNS_RTC_CTLR);  in cdns_rtc_set_enabled()
94 static bool cdns_rtc_get_enabled(struct cdns_rtc *crtc)  in cdns_rtc_get_enabled()  argument
96 	return !(readl(crtc->regs + CDNS_RTC_CTLR) & CDNS_RTC_CTLR_TIME_CAL);  in cdns_rtc_get_enabled()
102 	struct cdns_rtc *crtc = dev_get_drvdata(dev);  in cdns_rtc_irq_handler()  local
105 	if (!(readl(crtc->regs + CDNS_RTC_EFLR) & CDNS_RTC_AEI_ALRM))  in cdns_rtc_irq_handler()
108 	rtc_update_irq(crtc->rtc_dev, 1, RTC_IRQF | RTC_AF);  in cdns_rtc_irq_handler()
128 	struct cdns_rtc *crtc = dev_get_drvdata(dev);  in cdns_rtc_read_time()  local
132 	if (!cdns_rtc_get_enabled(crtc))  in cdns_rtc_read_time()
135 	cdns_rtc_set_enabled(crtc, false);  in cdns_rtc_read_time()
137 	reg = readl(crtc->regs + CDNS_RTC_TIMR);  in cdns_rtc_read_time()
140 	reg = readl(crtc->regs + CDNS_RTC_CALR);  in cdns_rtc_read_time()
147 	cdns_rtc_set_enabled(crtc, true);  in cdns_rtc_read_time()
153 	struct cdns_rtc *crtc = dev_get_drvdata(dev);  in cdns_rtc_set_time()  local
159 	cdns_rtc_set_enabled(crtc, false);  in cdns_rtc_set_time()
171 		writel(timr, crtc->regs + CDNS_RTC_TIMR);  in cdns_rtc_set_time()
172 		writel(calr, crtc->regs + CDNS_RTC_CALR);  in cdns_rtc_set_time()
173 		stsr = readl(crtc->regs + CDNS_RTC_STSR);  in cdns_rtc_set_time()
181 	cdns_rtc_set_enabled(crtc, true);  in cdns_rtc_set_time()
187 	struct cdns_rtc *crtc = dev_get_drvdata(dev);  in cdns_rtc_alarm_irq_enable()  local
192 		       crtc->regs + CDNS_RTC_AENR);  in cdns_rtc_alarm_irq_enable()
193 		writel(CDNS_RTC_AEI_ALRM, crtc->regs + CDNS_RTC_IENR);  in cdns_rtc_alarm_irq_enable()
195 		writel(0, crtc->regs + CDNS_RTC_AENR);  in cdns_rtc_alarm_irq_enable()
196 		writel(CDNS_RTC_AEI_ALRM, crtc->regs + CDNS_RTC_IDISR);  in cdns_rtc_alarm_irq_enable()
204 	struct cdns_rtc *crtc = dev_get_drvdata(dev);  in cdns_rtc_read_alarm()  local
207 	reg = readl(crtc->regs + CDNS_RTC_TIMAR);  in cdns_rtc_read_alarm()
210 	reg = readl(crtc->regs + CDNS_RTC_CALAR);  in cdns_rtc_read_alarm()
219 	struct cdns_rtc *crtc = dev_get_drvdata(dev);  in cdns_rtc_set_alarm()  local
232 		writel(timar, crtc->regs + CDNS_RTC_TIMAR);  in cdns_rtc_set_alarm()
233 		writel(calar, crtc->regs + CDNS_RTC_CALAR);  in cdns_rtc_set_alarm()
234 		stsr = readl(crtc->regs + CDNS_RTC_STSR);  in cdns_rtc_set_alarm()
257 	struct cdns_rtc *crtc;  in cdns_rtc_probe()  local
261 	crtc = devm_kzalloc(&pdev->dev, sizeof(*crtc), GFP_KERNEL);  in cdns_rtc_probe()
262 	if (!crtc)  in cdns_rtc_probe()
265 	crtc->regs = devm_platform_ioremap_resource(pdev, 0);  in cdns_rtc_probe()
266 	if (IS_ERR(crtc->regs))  in cdns_rtc_probe()
267 		return PTR_ERR(crtc->regs);  in cdns_rtc_probe()
269 	crtc->irq = platform_get_irq(pdev, 0);  in cdns_rtc_probe()
270 	if (crtc->irq < 0)  in cdns_rtc_probe()
273 	crtc->pclk = devm_clk_get(&pdev->dev, "pclk");  in cdns_rtc_probe()
274 	if (IS_ERR(crtc->pclk)) {  in cdns_rtc_probe()
275 		ret = PTR_ERR(crtc->pclk);  in cdns_rtc_probe()
281 	crtc->ref_clk = devm_clk_get(&pdev->dev, "ref_clk");  in cdns_rtc_probe()
282 	if (IS_ERR(crtc->ref_clk)) {  in cdns_rtc_probe()
283 		ret = PTR_ERR(crtc->ref_clk);  in cdns_rtc_probe()
289 	crtc->rtc_dev = devm_rtc_allocate_device(&pdev->dev);  in cdns_rtc_probe()
290 	if (IS_ERR(crtc->rtc_dev))  in cdns_rtc_probe()
291 		return PTR_ERR(crtc->rtc_dev);  in cdns_rtc_probe()
293 	platform_set_drvdata(pdev, crtc);  in cdns_rtc_probe()
295 	ret = clk_prepare_enable(crtc->pclk);  in cdns_rtc_probe()
302 	ret = clk_prepare_enable(crtc->ref_clk);  in cdns_rtc_probe()
309 	ref_clk_freq = clk_get_rate(crtc->ref_clk);  in cdns_rtc_probe()
318 	ret = devm_request_irq(&pdev->dev, crtc->irq,  in cdns_rtc_probe()
329 	crtc->rtc_dev->range_min = mktime64(1900,  1,  1,  0,  0,  0);  in cdns_rtc_probe()
330 	crtc->rtc_dev->range_max = mktime64(2999, 12, 31, 23, 59, 59);  in cdns_rtc_probe()
332 	crtc->rtc_dev->ops = &cdns_rtc_ops;  in cdns_rtc_probe()
336 	writel(0, crtc->regs + CDNS_RTC_HMR);  in cdns_rtc_probe()
337 	writel(CDNS_RTC_KRTCR_KRTC, crtc->regs + CDNS_RTC_KRTCR);  in cdns_rtc_probe()
339 	ret = devm_rtc_register_device(crtc->rtc_dev);  in cdns_rtc_probe()
349 	clk_disable_unprepare(crtc->ref_clk);  in cdns_rtc_probe()
352 	clk_disable_unprepare(crtc->pclk);  in cdns_rtc_probe()
359 	struct cdns_rtc *crtc = platform_get_drvdata(pdev);  in cdns_rtc_remove()  local
364 	clk_disable_unprepare(crtc->pclk);  in cdns_rtc_remove()
365 	clk_disable_unprepare(crtc->ref_clk);  in cdns_rtc_remove()
371 	struct cdns_rtc *crtc = dev_get_drvdata(dev);  in cdns_rtc_suspend()  local
374 		enable_irq_wake(crtc->irq);  in cdns_rtc_suspend()
381 	struct cdns_rtc *crtc = dev_get_drvdata(dev);  in cdns_rtc_resume()  local
384 		disable_irq_wake(crtc->irq);  in cdns_rtc_resume()