2 /* NXP PCF50633 RTC Driver
18 #include <linux/rtc.h>
62 static void pcf2rtc_time(struct rtc_time *rtc, struct pcf50633_time *pcf)  in pcf2rtc_time()  argument
64 	rtc->tm_sec = bcd2bin(pcf->time[PCF50633_TI_SEC]);  in pcf2rtc_time()
65 	rtc->tm_min = bcd2bin(pcf->time[PCF50633_TI_MIN]);  in pcf2rtc_time()
66 	rtc->tm_hour = bcd2bin(pcf->time[PCF50633_TI_HOUR]);  in pcf2rtc_time()
67 	rtc->tm_wday = bcd2bin(pcf->time[PCF50633_TI_WKDAY]);  in pcf2rtc_time()
68 	rtc->tm_mday = bcd2bin(pcf->time[PCF50633_TI_DAY]);  in pcf2rtc_time()
69 	rtc->tm_mon = bcd2bin(pcf->time[PCF50633_TI_MONTH]) - 1;  in pcf2rtc_time()
70 	rtc->tm_year = bcd2bin(pcf->time[PCF50633_TI_YEAR]) + 100;  in pcf2rtc_time()
73 static void rtc2pcf_time(struct pcf50633_time *pcf, struct rtc_time *rtc)  in rtc2pcf_time()  argument
75 	pcf->time[PCF50633_TI_SEC] = bin2bcd(rtc->tm_sec);  in rtc2pcf_time()
76 	pcf->time[PCF50633_TI_MIN] = bin2bcd(rtc->tm_min);  in rtc2pcf_time()
77 	pcf->time[PCF50633_TI_HOUR] = bin2bcd(rtc->tm_hour);  in rtc2pcf_time()
78 	pcf->time[PCF50633_TI_WKDAY] = bin2bcd(rtc->tm_wday);  in rtc2pcf_time()
79 	pcf->time[PCF50633_TI_DAY] = bin2bcd(rtc->tm_mday);  in rtc2pcf_time()
80 	pcf->time[PCF50633_TI_MONTH] = bin2bcd(rtc->tm_mon + 1);  in rtc2pcf_time()
81 	pcf->time[PCF50633_TI_YEAR] = bin2bcd(rtc->tm_year % 100);  in rtc2pcf_time()
87 	struct pcf50633_rtc *rtc = dev_get_drvdata(dev);  in pcf50633_rtc_alarm_irq_enable()  local
91 		err = pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_ALARM);  in pcf50633_rtc_alarm_irq_enable()
93 		err = pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_ALARM);  in pcf50633_rtc_alarm_irq_enable()
98 	rtc->alarm_enabled = enabled;  in pcf50633_rtc_alarm_irq_enable()
105 	struct pcf50633_rtc *rtc;  in pcf50633_rtc_read_time()  local
109 	rtc = dev_get_drvdata(dev);  in pcf50633_rtc_read_time()
111 	ret = pcf50633_read_block(rtc->pcf, PCF50633_REG_RTCSC,  in pcf50633_rtc_read_time()
136 	struct pcf50633_rtc *rtc;  in pcf50633_rtc_set_time()  local
140 	rtc = dev_get_drvdata(dev);  in pcf50633_rtc_set_time()
155 	alarm_masked = pcf50633_irq_mask_get(rtc->pcf, PCF50633_IRQ_ALARM);  in pcf50633_rtc_set_time()
158 		pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_ALARM);  in pcf50633_rtc_set_time()
161 	ret = pcf50633_write_block(rtc->pcf, PCF50633_REG_RTCSC,  in pcf50633_rtc_set_time()
166 		pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_ALARM);  in pcf50633_rtc_set_time()
173 	struct pcf50633_rtc *rtc;  in pcf50633_rtc_read_alarm()  local
177 	rtc = dev_get_drvdata(dev);  in pcf50633_rtc_read_alarm()
179 	alrm->enabled = rtc->alarm_enabled;  in pcf50633_rtc_read_alarm()
180 	alrm->pending = rtc->alarm_pending;  in pcf50633_rtc_read_alarm()
182 	ret = pcf50633_read_block(rtc->pcf, PCF50633_REG_RTCSCA,  in pcf50633_rtc_read_alarm()
196 	struct pcf50633_rtc *rtc;  in pcf50633_rtc_set_alarm()  local
200 	rtc = dev_get_drvdata(dev);  in pcf50633_rtc_set_alarm()
207 	alarm_masked = pcf50633_irq_mask_get(rtc->pcf, PCF50633_IRQ_ALARM);  in pcf50633_rtc_set_alarm()
211 		pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_ALARM);  in pcf50633_rtc_set_alarm()
214 	ret = pcf50633_write_block(rtc->pcf, PCF50633_REG_RTCSCA,  in pcf50633_rtc_set_alarm()
217 		rtc->alarm_pending = 0;  in pcf50633_rtc_set_alarm()
220 		pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_ALARM);  in pcf50633_rtc_set_alarm()
221 	rtc->alarm_enabled = alrm->enabled;  in pcf50633_rtc_set_alarm()
236 	struct pcf50633_rtc *rtc = data;  in pcf50633_rtc_irq()  local
238 	rtc_update_irq(rtc->rtc_dev, 1, RTC_AF | RTC_IRQF);  in pcf50633_rtc_irq()
239 	rtc->alarm_pending = 1;  in pcf50633_rtc_irq()
244 	struct pcf50633_rtc *rtc;  in pcf50633_rtc_probe()  local
246 	rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);  in pcf50633_rtc_probe()
247 	if (!rtc)  in pcf50633_rtc_probe()
250 	rtc->pcf = dev_to_pcf50633(pdev->dev.parent);  in pcf50633_rtc_probe()
251 	platform_set_drvdata(pdev, rtc);  in pcf50633_rtc_probe()
252 	rtc->rtc_dev = devm_rtc_device_register(&pdev->dev, "pcf50633-rtc",  in pcf50633_rtc_probe()
255 	if (IS_ERR(rtc->rtc_dev))  in pcf50633_rtc_probe()
256 		return PTR_ERR(rtc->rtc_dev);  in pcf50633_rtc_probe()
258 	pcf50633_register_irq(rtc->pcf, PCF50633_IRQ_ALARM,  in pcf50633_rtc_probe()
259 					pcf50633_rtc_irq, rtc);  in pcf50633_rtc_probe()
265 	struct pcf50633_rtc *rtc;  in pcf50633_rtc_remove()  local
267 	rtc = platform_get_drvdata(pdev);  in pcf50633_rtc_remove()
268 	pcf50633_free_irq(rtc->pcf, PCF50633_IRQ_ALARM);  in pcf50633_rtc_remove()
273 		.name = "pcf50633-rtc",
281 MODULE_DESCRIPTION("PCF50633 RTC driver");