1 // SPDX-License-Identifier: GPL-2.0-only
55 			.addr	= client->addr,  in isl12022_read_regs()
61 			.addr	= client->addr,  in isl12022_read_regs()
71 	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));  in isl12022_read_regs()
73 		dev_err(&client->dev, "%s: read error, ret=%d\n",  in isl12022_read_regs()
75 		return -EIO;  in isl12022_read_regs()
90 		dev_err(&client->dev,  in isl12022_write_reg()
93 		return -EIO;  in isl12022_write_reg()
102  * rtc_time -- month 0-11, hour 0-23, yr = calendar year-epoch.
115 		dev_warn(&client->dev,  in isl12022_rtc_read_time()
121 	dev_dbg(&client->dev,  in isl12022_rtc_read_time()
123 		"mday=%02x, mon=%02x, year=%02x, wday=%02x, "  in isl12022_rtc_read_time()
136 	tm->tm_sec = bcd2bin(buf[ISL12022_REG_SC] & 0x7F);  in isl12022_rtc_read_time()
137 	tm->tm_min = bcd2bin(buf[ISL12022_REG_MN] & 0x7F);  in isl12022_rtc_read_time()
138 	tm->tm_hour = bcd2bin(buf[ISL12022_REG_HR] & 0x3F);  in isl12022_rtc_read_time()
139 	tm->tm_mday = bcd2bin(buf[ISL12022_REG_DT] & 0x3F);  in isl12022_rtc_read_time()
140 	tm->tm_wday = buf[ISL12022_REG_DW] & 0x07;  in isl12022_rtc_read_time()
141 	tm->tm_mon = bcd2bin(buf[ISL12022_REG_MO] & 0x1F) - 1;  in isl12022_rtc_read_time()
142 	tm->tm_year = bcd2bin(buf[ISL12022_REG_YR]) + 100;  in isl12022_rtc_read_time()
144 	dev_dbg(&client->dev, "%s: secs=%d, mins=%d, hours=%d, "  in isl12022_rtc_read_time()
145 		"mday=%d, mon=%d, year=%d, wday=%d\n",  in isl12022_rtc_read_time()
147 		tm->tm_sec, tm->tm_min, tm->tm_hour,  in isl12022_rtc_read_time()
148 		tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);  in isl12022_rtc_read_time()
161 	dev_dbg(&client->dev, "%s: secs=%d, mins=%d, hours=%d, "  in isl12022_rtc_set_time()
162 		"mday=%d, mon=%d, year=%d, wday=%d\n",  in isl12022_rtc_set_time()
164 		tm->tm_sec, tm->tm_min, tm->tm_hour,  in isl12022_rtc_set_time()
165 		tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);  in isl12022_rtc_set_time()
167 	if (!isl12022->write_enabled) {  in isl12022_rtc_set_time()
176 			dev_info(&client->dev,  in isl12022_rtc_set_time()
186 			/* Write to any RTC register to start RTC, we use the  in isl12022_rtc_set_time()
201 		isl12022->write_enabled = true;  in isl12022_rtc_set_time()
205 	buf[ISL12022_REG_SC] = bin2bcd(tm->tm_sec);  in isl12022_rtc_set_time()
206 	buf[ISL12022_REG_MN] = bin2bcd(tm->tm_min);  in isl12022_rtc_set_time()
207 	buf[ISL12022_REG_HR] = bin2bcd(tm->tm_hour) | ISL12022_HR_MIL;  in isl12022_rtc_set_time()
209 	buf[ISL12022_REG_DT] = bin2bcd(tm->tm_mday);  in isl12022_rtc_set_time()
211 	/* month, 1 - 12 */  in isl12022_rtc_set_time()
212 	buf[ISL12022_REG_MO] = bin2bcd(tm->tm_mon + 1);  in isl12022_rtc_set_time()
214 	/* year and century */  in isl12022_rtc_set_time()
215 	buf[ISL12022_REG_YR] = bin2bcd(tm->tm_year % 100);  in isl12022_rtc_set_time()
217 	buf[ISL12022_REG_DW] = tm->tm_wday & 0x07;  in isl12022_rtc_set_time()
224 			return -EIO;  in isl12022_rtc_set_time()
240 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))  in isl12022_probe()
241 		return -ENODEV;  in isl12022_probe()
243 	isl12022 = devm_kzalloc(&client->dev, sizeof(struct isl12022),  in isl12022_probe()
246 		return -ENOMEM;  in isl12022_probe()
250 	isl12022->rtc = devm_rtc_device_register(&client->dev,  in isl12022_probe()
253 	return PTR_ERR_OR_ZERO(isl12022->rtc);  in isl12022_probe()
273 		.name	= "rtc-isl12022",