64 struct s35390a {  struct
70 static int s35390a_set_reg(struct s35390a *s35390a, int reg, char *buf, int len)  in s35390a_set_reg()  argument
72 	struct i2c_client *client = s35390a->client[reg];  in s35390a_set_reg()
87 static int s35390a_get_reg(struct s35390a *s35390a, int reg, char *buf, int len)  in s35390a_get_reg()  argument
89 	struct i2c_client *client = s35390a->client[reg];  in s35390a_get_reg()
105 static int s35390a_init(struct s35390a *s35390a)  in s35390a_init()  argument
121 	ret = s35390a_set_reg(s35390a, S35390A_CMD_STATUS1, &buf, 1);  in s35390a_init()
126 	ret = s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, &buf, 1);  in s35390a_init()
147 static int s35390a_read_status(struct s35390a *s35390a, char *status1)  in s35390a_read_status()  argument
151 	ret = s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, status1, 1);  in s35390a_read_status()
170 static int s35390a_disable_test_mode(struct s35390a *s35390a)  in s35390a_disable_test_mode()  argument
174 	if (s35390a_get_reg(s35390a, S35390A_CMD_STATUS2, buf, sizeof(buf)) < 0)  in s35390a_disable_test_mode()
181 	return s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, buf, sizeof(buf));  in s35390a_disable_test_mode()
184 static char s35390a_hr2reg(struct s35390a *s35390a, int hour)  in s35390a_hr2reg()  argument
186 	if (s35390a->twentyfourhour)  in s35390a_hr2reg()
195 static int s35390a_reg2hr(struct s35390a *s35390a, char reg)  in s35390a_reg2hr()  argument
199 	if (s35390a->twentyfourhour)  in s35390a_reg2hr()
212 	struct s35390a	*s35390a = i2c_get_clientdata(client);  in s35390a_rtc_set_time()  local
221 	if (s35390a_read_status(s35390a, &status) == 1)  in s35390a_rtc_set_time()
222 		s35390a_init(s35390a);  in s35390a_rtc_set_time()
228 	buf[S35390A_BYTE_HOURS] = s35390a_hr2reg(s35390a, tm->tm_hour);  in s35390a_rtc_set_time()
236 	return s35390a_set_reg(s35390a, S35390A_CMD_TIME1, buf, sizeof(buf));  in s35390a_rtc_set_time()
242 	struct s35390a *s35390a = i2c_get_clientdata(client);  in s35390a_rtc_read_time()  local
246 	if (s35390a_read_status(s35390a, &status) == 1)  in s35390a_rtc_read_time()
249 	err = s35390a_get_reg(s35390a, S35390A_CMD_TIME1, buf, sizeof(buf));  in s35390a_rtc_read_time()
259 	tm->tm_hour = s35390a_reg2hr(s35390a, buf[S35390A_BYTE_HOURS]);  in s35390a_rtc_read_time()
276 	struct s35390a *s35390a = i2c_get_clientdata(client);  in s35390a_rtc_set_alarm()  local
286 	err = s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, &sts, sizeof(sts));  in s35390a_rtc_set_alarm()
291 	err = s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, &sts, sizeof(sts));  in s35390a_rtc_set_alarm()
301 	err = s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, &sts, sizeof(sts));  in s35390a_rtc_set_alarm()
310 	buf[S35390A_ALRM_BYTE_HOURS] = s35390a_hr2reg(s35390a,  in s35390a_rtc_set_alarm()
320 	err = s35390a_set_reg(s35390a, S35390A_CMD_INT2_REG1, buf,  in s35390a_rtc_set_alarm()
329 	struct s35390a *s35390a = i2c_get_clientdata(client);  in s35390a_rtc_read_alarm()  local
333 	err = s35390a_get_reg(s35390a, S35390A_CMD_STATUS2, &sts, sizeof(sts));  in s35390a_rtc_read_alarm()
348 	err = s35390a_get_reg(s35390a, S35390A_CMD_INT2_REG1, buf, sizeof(buf));  in s35390a_rtc_read_alarm()
366 			s35390a_reg2hr(s35390a,  in s35390a_rtc_read_alarm()
386 	struct s35390a *s35390a = i2c_get_clientdata(client);  in s35390a_rtc_ioctl()  local
393 		err = s35390a_read_status(s35390a, &sts);  in s35390a_rtc_ioctl()
401 		err = s35390a_init(s35390a);  in s35390a_rtc_ioctl()
424 	struct s35390a *s35390a;  in s35390a_probe()  local
431 	s35390a = devm_kzalloc(dev, sizeof(struct s35390a), GFP_KERNEL);  in s35390a_probe()
432 	if (!s35390a)  in s35390a_probe()
435 	s35390a->client[0] = client;  in s35390a_probe()
436 	i2c_set_clientdata(client, s35390a);  in s35390a_probe()
440 		s35390a->client[i] = devm_i2c_new_dummy_device(dev,  in s35390a_probe()
443 		if (IS_ERR(s35390a->client[i])) {  in s35390a_probe()
446 			return PTR_ERR(s35390a->client[i]);  in s35390a_probe()
450 	s35390a->rtc = devm_rtc_allocate_device(dev);  in s35390a_probe()
451 	if (IS_ERR(s35390a->rtc))  in s35390a_probe()
452 		return PTR_ERR(s35390a->rtc);  in s35390a_probe()
454 	err_read = s35390a_read_status(s35390a, &status1);  in s35390a_probe()
461 		s35390a->twentyfourhour = 1;  in s35390a_probe()
463 		s35390a->twentyfourhour = 0;  in s35390a_probe()
468 		err = s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, &buf, 1);  in s35390a_probe()
474 		err = s35390a_disable_test_mode(s35390a);  in s35390a_probe()
483 	s35390a->rtc->ops = &s35390a_rtc_ops;  in s35390a_probe()
484 	s35390a->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;  in s35390a_probe()
485 	s35390a->rtc->range_max = RTC_TIMESTAMP_END_2099;  in s35390a_probe()
487 	set_bit(RTC_FEATURE_ALARM_RES_MINUTE, s35390a->rtc->features);  in s35390a_probe()
488 	clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, s35390a->rtc->features );  in s35390a_probe()
491 		rtc_update_irq(s35390a->rtc, 1, RTC_AF);  in s35390a_probe()
493 	return devm_rtc_register_device(s35390a->rtc);  in s35390a_probe()