1 // SPDX-License-Identifier: GPL-2.0-only
3  * TI LP8788 MFD - rtc driver
100 	return LP8788_WDAY_SET << (tm_wday - 1);  in _to_lp8788_wday()
112 	struct lp8788 *lp = rtc->lp;  in lp8788_rtc_read_time()
122 	tm->tm_sec  = data[LPTIME_SEC];  in lp8788_rtc_read_time()
123 	tm->tm_min  = data[LPTIME_MIN];  in lp8788_rtc_read_time()
124 	tm->tm_hour = data[LPTIME_HOUR];  in lp8788_rtc_read_time()
125 	tm->tm_mday = data[LPTIME_MDAY];  in lp8788_rtc_read_time()
126 	tm->tm_mon  = data[LPTIME_MON] - LP8788_MONTH_OFFSET;  in lp8788_rtc_read_time()
127 	tm->tm_year = data[LPTIME_YEAR] + LP8788_BASE_YEAR - 1900;  in lp8788_rtc_read_time()
128 	tm->tm_wday = _to_tm_wday(data[LPTIME_WDAY]);  in lp8788_rtc_read_time()
136 	struct lp8788 *lp = rtc->lp;  in lp8788_rtc_set_time()
137 	u8 data[LPTIME_MAX - 1];  in lp8788_rtc_set_time()
138 	int ret, i, year;  in lp8788_rtc_set_time()  local
140 	year = tm->tm_year + 1900 - LP8788_BASE_YEAR;  in lp8788_rtc_set_time()
141 	if (year < 0) {  in lp8788_rtc_set_time()
142 		dev_err(lp->dev, "invalid year: %d\n", year);  in lp8788_rtc_set_time()
143 		return -EINVAL;  in lp8788_rtc_set_time()
147 	data[LPTIME_SEC]  = tm->tm_sec;  in lp8788_rtc_set_time()
148 	data[LPTIME_MIN]  = tm->tm_min;  in lp8788_rtc_set_time()
149 	data[LPTIME_HOUR] = tm->tm_hour;  in lp8788_rtc_set_time()
150 	data[LPTIME_MDAY] = tm->tm_mday;  in lp8788_rtc_set_time()
151 	data[LPTIME_MON]  = tm->tm_mon + LP8788_MONTH_OFFSET;  in lp8788_rtc_set_time()
152 	data[LPTIME_YEAR] = year;  in lp8788_rtc_set_time()
166 	struct lp8788 *lp = rtc->lp;  in lp8788_read_alarm()
167 	struct rtc_time *tm = &alarm->time;  in lp8788_read_alarm()
171 	addr = addr_alarm_sec[rtc->alarm];  in lp8788_read_alarm()
176 	tm->tm_sec  = data[LPTIME_SEC];  in lp8788_read_alarm()
177 	tm->tm_min  = data[LPTIME_MIN];  in lp8788_read_alarm()
178 	tm->tm_hour = data[LPTIME_HOUR];  in lp8788_read_alarm()
179 	tm->tm_mday = data[LPTIME_MDAY];  in lp8788_read_alarm()
180 	tm->tm_mon  = data[LPTIME_MON] - LP8788_MONTH_OFFSET;  in lp8788_read_alarm()
181 	tm->tm_year = data[LPTIME_YEAR] + LP8788_BASE_YEAR - 1900;  in lp8788_read_alarm()
182 	tm->tm_wday = _to_tm_wday(data[LPTIME_WDAY]);  in lp8788_read_alarm()
183 	alarm->enabled = data[LPTIME_WDAY] & LP8788_ALM_EN_M;  in lp8788_read_alarm()
191 	struct lp8788 *lp = rtc->lp;  in lp8788_set_alarm()
192 	struct rtc_time *tm = &alarm->time;  in lp8788_set_alarm()
194 	int ret, i, year;  in lp8788_set_alarm()  local
196 	year = tm->tm_year + 1900 - LP8788_BASE_YEAR;  in lp8788_set_alarm()
197 	if (year < 0) {  in lp8788_set_alarm()
198 		dev_err(lp->dev, "invalid year: %d\n", year);  in lp8788_set_alarm()
199 		return -EINVAL;  in lp8788_set_alarm()
202 	data[LPTIME_SEC]  = tm->tm_sec;  in lp8788_set_alarm()
203 	data[LPTIME_MIN]  = tm->tm_min;  in lp8788_set_alarm()
204 	data[LPTIME_HOUR] = tm->tm_hour;  in lp8788_set_alarm()
205 	data[LPTIME_MDAY] = tm->tm_mday;  in lp8788_set_alarm()
206 	data[LPTIME_MON]  = tm->tm_mon + LP8788_MONTH_OFFSET;  in lp8788_set_alarm()
207 	data[LPTIME_YEAR] = year;  in lp8788_set_alarm()
208 	data[LPTIME_WDAY] = _to_lp8788_wday(tm->tm_wday);  in lp8788_set_alarm()
211 		addr = addr_alarm_sec[rtc->alarm] + i;  in lp8788_set_alarm()
217 	alarm->enabled = 1;  in lp8788_set_alarm()
218 	addr = addr_alarm_en[rtc->alarm];  in lp8788_set_alarm()
221 				alarm->enabled << LP8788_ALM_EN_S);  in lp8788_set_alarm()
227 	struct lp8788 *lp = rtc->lp;  in lp8788_alarm_irq_enable()
230 	if (!rtc->irq)  in lp8788_alarm_irq_enable()
231 		return -EIO;  in lp8788_alarm_irq_enable()
233 	mask = mask_alarm_en[rtc->alarm];  in lp8788_alarm_irq_enable()
234 	shift = shift_alarm_en[rtc->alarm];  in lp8788_alarm_irq_enable()
251 	rtc_update_irq(rtc->rdev, 1, ALARM_IRQ_FLAG);  in lp8788_alarm_irq_handler()
259 	struct lp8788 *lp = rtc->lp;  in lp8788_alarm_irq_register()
260 	struct irq_domain *irqdm = lp->irqdm;  in lp8788_alarm_irq_register()
263 	rtc->irq = 0;  in lp8788_alarm_irq_register()
270 	if (rtc->alarm == LP8788_ALARM_1)  in lp8788_alarm_irq_register()
271 		irq = r->start;  in lp8788_alarm_irq_register()
273 		irq = r->end;  in lp8788_alarm_irq_register()
275 	rtc->irq = irq_create_mapping(irqdm, irq);  in lp8788_alarm_irq_register()
277 	return devm_request_threaded_irq(&pdev->dev, rtc->irq, NULL,  in lp8788_alarm_irq_register()
284 	struct lp8788 *lp = dev_get_drvdata(pdev->dev.parent);  in lp8788_rtc_probe()
286 	struct device *dev = &pdev->dev;  in lp8788_rtc_probe()
290 		return -ENOMEM;  in lp8788_rtc_probe()
292 	rtc->lp = lp;  in lp8788_rtc_probe()
293 	rtc->alarm = lp->pdata ? lp->pdata->alarm_sel : DEFAULT_ALARM_SEL;  in lp8788_rtc_probe()
298 	rtc->rdev = devm_rtc_device_register(dev, "lp8788_rtc",  in lp8788_rtc_probe()
300 	if (IS_ERR(rtc->rdev)) {  in lp8788_rtc_probe()
302 		return PTR_ERR(rtc->rdev);  in lp8788_rtc_probe()
306 		dev_warn(lp->dev, "no rtc irq handler\n");  in lp8788_rtc_probe()
322 MODULE_ALIAS("platform:lp8788-rtc");