65 struct s35390a {  struct
71 static int s35390a_set_reg(struct s35390a *s35390a, int reg, char *buf, int len)  in s35390a_set_reg()  argument
73 	struct i2c_client *client = s35390a->client[reg];  in s35390a_set_reg()
88 static int s35390a_get_reg(struct s35390a *s35390a, int reg, char *buf, int len)  in s35390a_get_reg()  argument
90 	struct i2c_client *client = s35390a->client[reg];  in s35390a_get_reg()
106 static int s35390a_init(struct s35390a *s35390a)  in s35390a_init()  argument
122 	ret = s35390a_set_reg(s35390a, S35390A_CMD_STATUS1, &buf, 1);  in s35390a_init()
127 	ret = s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, &buf, 1);  in s35390a_init()
148 static int s35390a_read_status(struct s35390a *s35390a, char *status1)  in s35390a_read_status()  argument
152 	ret = s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, status1, 1);  in s35390a_read_status()
171 static int s35390a_disable_test_mode(struct s35390a *s35390a)  in s35390a_disable_test_mode()  argument
175 	if (s35390a_get_reg(s35390a, S35390A_CMD_STATUS2, buf, sizeof(buf)) < 0)  in s35390a_disable_test_mode()
182 	return s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, buf, sizeof(buf));  in s35390a_disable_test_mode()
185 static char s35390a_hr2reg(struct s35390a *s35390a, int hour)  in s35390a_hr2reg()  argument
187 	if (s35390a->twentyfourhour)  in s35390a_hr2reg()
196 static int s35390a_reg2hr(struct s35390a *s35390a, char reg)  in s35390a_reg2hr()  argument
200 	if (s35390a->twentyfourhour)  in s35390a_reg2hr()
213 	struct s35390a	*s35390a = i2c_get_clientdata(client);  in s35390a_rtc_set_time()  local
222 	if (s35390a_read_status(s35390a, &status) == 1)  in s35390a_rtc_set_time()
223 		s35390a_init(s35390a);  in s35390a_rtc_set_time()
229 	buf[S35390A_BYTE_HOURS] = s35390a_hr2reg(s35390a, tm->tm_hour);  in s35390a_rtc_set_time()
237 	err = s35390a_set_reg(s35390a, S35390A_CMD_TIME1, buf, sizeof(buf));  in s35390a_rtc_set_time()
245 	struct s35390a *s35390a = i2c_get_clientdata(client);  in s35390a_rtc_read_time()  local
249 	if (s35390a_read_status(s35390a, &status) == 1)  in s35390a_rtc_read_time()
252 	err = s35390a_get_reg(s35390a, S35390A_CMD_TIME1, buf, sizeof(buf));  in s35390a_rtc_read_time()
262 	tm->tm_hour = s35390a_reg2hr(s35390a, buf[S35390A_BYTE_HOURS]);  in s35390a_rtc_read_time()
279 	struct s35390a *s35390a = i2c_get_clientdata(client);  in s35390a_rtc_set_alarm()  local
292 	err = s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, &sts, sizeof(sts));  in s35390a_rtc_set_alarm()
297 	err = s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, &sts, sizeof(sts));  in s35390a_rtc_set_alarm()
307 	err = s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, &sts, sizeof(sts));  in s35390a_rtc_set_alarm()
316 	buf[S35390A_ALRM_BYTE_HOURS] = s35390a_hr2reg(s35390a,  in s35390a_rtc_set_alarm()
326 	err = s35390a_set_reg(s35390a, S35390A_CMD_INT2_REG1, buf,  in s35390a_rtc_set_alarm()
335 	struct s35390a *s35390a = i2c_get_clientdata(client);  in s35390a_rtc_read_alarm()  local
339 	err = s35390a_get_reg(s35390a, S35390A_CMD_STATUS2, &sts, sizeof(sts));  in s35390a_rtc_read_alarm()
354 	err = s35390a_get_reg(s35390a, S35390A_CMD_INT2_REG1, buf, sizeof(buf));  in s35390a_rtc_read_alarm()
372 			s35390a_reg2hr(s35390a,  in s35390a_rtc_read_alarm()
392 	struct s35390a *s35390a = i2c_get_clientdata(client);  in s35390a_rtc_ioctl()  local
399 		err = s35390a_read_status(s35390a, &sts);  in s35390a_rtc_ioctl()
407 		err = s35390a_init(s35390a);  in s35390a_rtc_ioctl()
431 	struct s35390a *s35390a;  in s35390a_probe()  local
438 	s35390a = devm_kzalloc(dev, sizeof(struct s35390a), GFP_KERNEL);  in s35390a_probe()
439 	if (!s35390a)  in s35390a_probe()
442 	s35390a->client[0] = client;  in s35390a_probe()
443 	i2c_set_clientdata(client, s35390a);  in s35390a_probe()
447 		s35390a->client[i] = devm_i2c_new_dummy_device(dev,  in s35390a_probe()
450 		if (IS_ERR(s35390a->client[i])) {  in s35390a_probe()
453 			return PTR_ERR(s35390a->client[i]);  in s35390a_probe()
457 	s35390a->rtc = devm_rtc_allocate_device(dev);  in s35390a_probe()
458 	if (IS_ERR(s35390a->rtc))  in s35390a_probe()
459 		return PTR_ERR(s35390a->rtc);  in s35390a_probe()
461 	err_read = s35390a_read_status(s35390a, &status1);  in s35390a_probe()
468 		s35390a->twentyfourhour = 1;  in s35390a_probe()
470 		s35390a->twentyfourhour = 0;  in s35390a_probe()
475 		err = s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, &buf, 1);  in s35390a_probe()
481 		err = s35390a_disable_test_mode(s35390a);  in s35390a_probe()
490 	s35390a->rtc->ops = &s35390a_rtc_ops;  in s35390a_probe()
491 	s35390a->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;  in s35390a_probe()
492 	s35390a->rtc->range_max = RTC_TIMESTAMP_END_2099;  in s35390a_probe()
495 	s35390a->rtc->uie_unsupported = 1;  in s35390a_probe()
498 		rtc_update_irq(s35390a->rtc, 1, RTC_AF);  in s35390a_probe()
500 	return rtc_register_device(s35390a->rtc);  in s35390a_probe()