53 	struct i2c_client *client;  member
68 static int ds3232_check_rtc_status(struct i2c_client *client)  in ds3232_check_rtc_status()  argument
73 	stat = i2c_smbus_read_byte_data(client, DS3232_REG_SR);  in ds3232_check_rtc_status()
78 		dev_warn(&client->dev,  in ds3232_check_rtc_status()
84 	ret = i2c_smbus_write_byte_data(client, DS3232_REG_SR, stat);  in ds3232_check_rtc_status()
93 	control = i2c_smbus_read_byte_data(client, DS3232_REG_CR);  in ds3232_check_rtc_status()
100 	return i2c_smbus_write_byte_data(client, DS3232_REG_CR, control);  in ds3232_check_rtc_status()
105 	struct i2c_client *client = to_i2c_client(dev);  in ds3232_read_time()  local
112 	ret = i2c_smbus_read_i2c_block_data(client, DS3232_REG_SECONDS, 7, buf);  in ds3232_read_time()
162 	struct i2c_client *client = to_i2c_client(dev);  in ds3232_set_time()  local
182 	return i2c_smbus_write_i2c_block_data(client,  in ds3232_set_time()
193 	struct i2c_client *client = to_i2c_client(dev);  in ds3232_read_alarm()  local
194 	struct ds3232 *ds3232 = i2c_get_clientdata(client);  in ds3232_read_alarm()
201 	ret = i2c_smbus_read_byte_data(client, DS3232_REG_SR);  in ds3232_read_alarm()
205 	ret = i2c_smbus_read_byte_data(client, DS3232_REG_CR);  in ds3232_read_alarm()
209 	ret = i2c_smbus_read_i2c_block_data(client, DS3232_REG_ALARM1, 4, buf);  in ds3232_read_alarm()
239 	struct i2c_client *client = to_i2c_client(dev);  in ds3232_set_alarm()  local
240 	struct ds3232 *ds3232 = i2c_get_clientdata(client);  in ds3232_set_alarm()
245 	if (client->irq <= 0)  in ds3232_set_alarm()
256 	ret = i2c_smbus_read_byte_data(client, DS3232_REG_CR);  in ds3232_set_alarm()
261 	ret = i2c_smbus_write_byte_data(client, DS3232_REG_CR, control);  in ds3232_set_alarm()
266 	ret = i2c_smbus_read_byte_data(client, DS3232_REG_SR);  in ds3232_set_alarm()
271 	ret = i2c_smbus_write_byte_data(client, DS3232_REG_SR, stat);  in ds3232_set_alarm()
275 	ret = i2c_smbus_write_i2c_block_data(client, DS3232_REG_ALARM1, 4, buf);  in ds3232_set_alarm()
279 		ret = i2c_smbus_write_byte_data(client, DS3232_REG_CR, control);  in ds3232_set_alarm()
286 static void ds3232_update_alarm(struct i2c_client *client)  in ds3232_update_alarm()  argument
288 	struct ds3232 *ds3232 = i2c_get_clientdata(client);  in ds3232_update_alarm()
295 	ret = i2c_smbus_read_i2c_block_data(client, DS3232_REG_ALARM1, 4, buf);  in ds3232_update_alarm()
308 	ret = i2c_smbus_write_i2c_block_data(client, DS3232_REG_ALARM1, 4, buf);  in ds3232_update_alarm()
312 	control = i2c_smbus_read_byte_data(client, DS3232_REG_CR);  in ds3232_update_alarm()
322 	i2c_smbus_write_byte_data(client, DS3232_REG_CR, control);  in ds3232_update_alarm()
330 	struct i2c_client *client = to_i2c_client(dev);  in ds3232_alarm_irq_enable()  local
331 	struct ds3232 *ds3232 = i2c_get_clientdata(client);  in ds3232_alarm_irq_enable()
333 	if (client->irq <= 0)  in ds3232_alarm_irq_enable()
341 	ds3232_update_alarm(client);  in ds3232_alarm_irq_enable()
347 	struct i2c_client *client = dev_id;  in ds3232_irq()  local
348 	struct ds3232 *ds3232 = i2c_get_clientdata(client);  in ds3232_irq()
366 	struct i2c_client *client = ds3232->client;  in ds3232_work()  local
371 	stat = i2c_smbus_read_byte_data(client, DS3232_REG_SR);  in ds3232_work()
376 		control = i2c_smbus_read_byte_data(client, DS3232_REG_CR);  in ds3232_work()
379 				client->irq);  in ds3232_work()
383 			i2c_smbus_write_byte_data(client, DS3232_REG_CR,  in ds3232_work()
388 			i2c_smbus_write_byte_data(client, DS3232_REG_SR, stat);  in ds3232_work()
393 				enable_irq(client->irq);  in ds3232_work()
409 static int ds3232_probe(struct i2c_client *client,  in ds3232_probe()  argument
415 	ds3232 = devm_kzalloc(&client->dev, sizeof(struct ds3232), GFP_KERNEL);  in ds3232_probe()
419 	ds3232->client = client;  in ds3232_probe()
420 	i2c_set_clientdata(client, ds3232);  in ds3232_probe()
425 	ret = ds3232_check_rtc_status(client);  in ds3232_probe()
429 	if (client->irq > 0) {  in ds3232_probe()
430 		ret = devm_request_irq(&client->dev, client->irq, ds3232_irq,  in ds3232_probe()
431 				       IRQF_SHARED, "ds3232", client);  in ds3232_probe()
433 			dev_err(&client->dev, "unable to request IRQ\n");  in ds3232_probe()
435 		device_init_wakeup(&client->dev, 1);  in ds3232_probe()
437 	ds3232->rtc = devm_rtc_device_register(&client->dev, client->name,  in ds3232_probe()
442 static int ds3232_remove(struct i2c_client *client)  in ds3232_remove()  argument
444 	struct ds3232 *ds3232 = i2c_get_clientdata(client);  in ds3232_remove()
446 	if (client->irq > 0) {  in ds3232_remove()
451 		devm_free_irq(&client->dev, client->irq, client);  in ds3232_remove()
462 	struct i2c_client *client = to_i2c_client(dev);  in ds3232_suspend()  local
466 		if (irq_set_irq_wake(client->irq, 1)) {  in ds3232_suspend()
478 	struct i2c_client *client = to_i2c_client(dev);  in ds3232_resume()  local
486 		irq_set_irq_wake(client->irq, 0);  in ds3232_resume()