70 static int ds4424_get_value(struct iio_dev *indio_dev,  in ds4424_get_value()  argument
73 	struct ds4424_data *data = iio_priv(indio_dev);  in ds4424_get_value()
88 static int ds4424_set_value(struct iio_dev *indio_dev,  in ds4424_set_value()  argument
91 	struct ds4424_data *data = iio_priv(indio_dev);  in ds4424_set_value()
107 static int ds4424_read_raw(struct iio_dev *indio_dev,  in ds4424_read_raw()  argument
116 		ret = ds4424_get_value(indio_dev, val, chan->channel);  in ds4424_read_raw()
133 static int ds4424_write_raw(struct iio_dev *indio_dev,  in ds4424_write_raw()  argument
155 		return ds4424_set_value(indio_dev, raw.bits, chan);  in ds4424_write_raw()
162 static int ds4424_verify_chip(struct iio_dev *indio_dev)  in ds4424_verify_chip()  argument
166 	ret = ds4424_get_value(indio_dev, &val, 0);  in ds4424_verify_chip()
168 		dev_err(&indio_dev->dev,  in ds4424_verify_chip()
177 	struct iio_dev *indio_dev = i2c_get_clientdata(client);  in ds4424_suspend()  local
178 	struct ds4424_data *data = iio_priv(indio_dev);  in ds4424_suspend()
182 	for (i = 0; i < indio_dev->num_channels; i++) {  in ds4424_suspend()
184 		ret = ds4424_set_value(indio_dev, 0,  in ds4424_suspend()
185 				&indio_dev->channels[i]);  in ds4424_suspend()
195 	struct iio_dev *indio_dev = i2c_get_clientdata(client);  in ds4424_resume()  local
196 	struct ds4424_data *data = iio_priv(indio_dev);  in ds4424_resume()
200 	for (i = 0; i < indio_dev->num_channels; i++) {  in ds4424_resume()
201 		ret = ds4424_set_value(indio_dev, data->save[i],  in ds4424_resume()
202 				&indio_dev->channels[i]);  in ds4424_resume()
220 	struct iio_dev *indio_dev;  in ds4424_probe()  local
223 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));  in ds4424_probe()
224 	if (!indio_dev) {  in ds4424_probe()
229 	data = iio_priv(indio_dev);  in ds4424_probe()
230 	i2c_set_clientdata(client, indio_dev);  in ds4424_probe()
232 	indio_dev->name = id->name;  in ds4424_probe()
248 	ret = ds4424_verify_chip(indio_dev);  in ds4424_probe()
254 		indio_dev->num_channels = DS4422_MAX_DAC_CHANNELS;  in ds4424_probe()
257 		indio_dev->num_channels = DS4424_MAX_DAC_CHANNELS;  in ds4424_probe()
266 	indio_dev->channels = ds4424_channels;  in ds4424_probe()
267 	indio_dev->modes = INDIO_DIRECT_MODE;  in ds4424_probe()
268 	indio_dev->info = &ds4424_info;  in ds4424_probe()
270 	ret = iio_device_register(indio_dev);  in ds4424_probe()
286 	struct iio_dev *indio_dev = i2c_get_clientdata(client);  in ds4424_remove()  local
287 	struct ds4424_data *data = iio_priv(indio_dev);  in ds4424_remove()
289 	iio_device_unregister(indio_dev);  in ds4424_remove()