52 	int ret = 0;  in adc_supply_enable()  local
56 		ret = regulator_set_enable(uc_pdata->vdd_supply, true);  in adc_supply_enable()
59 	if (!ret && uc_pdata->vss_supply) {  in adc_supply_enable()
61 		ret = regulator_set_enable(uc_pdata->vss_supply, true);  in adc_supply_enable()
64 	if (ret)  in adc_supply_enable()
67 	return ret;  in adc_supply_enable()
106 	int ret;  in adc_start_channel()  local
111 	ret = check_channel(dev, channel, CHECK_NUMBER, __func__);  in adc_start_channel()
112 	if (ret)  in adc_start_channel()
113 		return ret;  in adc_start_channel()
115 	ret = adc_supply_enable(dev);  in adc_start_channel()
116 	if (ret)  in adc_start_channel()
117 		return ret;  in adc_start_channel()
125 	int ret;  in adc_start_channels()  local
130 	ret = check_channel(dev, channel_mask, CHECK_MASK, __func__);  in adc_start_channels()
131 	if (ret)  in adc_start_channels()
132 		return ret;  in adc_start_channels()
134 	ret = adc_supply_enable(dev);  in adc_start_channels()
135 	if (ret)  in adc_start_channels()
136 		return ret;  in adc_start_channels()
146 	int ret;  in adc_channel_data()  local
151 	ret = check_channel(dev, channel, CHECK_NUMBER, __func__);  in adc_channel_data()
152 	if (ret)  in adc_channel_data()
153 		return ret;  in adc_channel_data()
156 		ret = ops->channel_data(dev, channel, data);  in adc_channel_data()
157 		if (!ret || ret != -EBUSY)  in adc_channel_data()
164 	return ret;  in adc_channel_data()
173 	int ret;  in adc_channels_data()  local
178 	ret = check_channel(dev, channel_mask, CHECK_MASK, __func__);  in adc_channels_data()
179 	if (ret)  in adc_channels_data()
180 		return ret;  in adc_channels_data()
183 		ret = ops->channels_data(dev, channel_mask, channels);  in adc_channels_data()
184 		if (!ret || ret != -EBUSY)  in adc_channels_data()
191 	return ret;  in adc_channels_data()
197 	int ret;  in adc_channel_single_shot()  local
199 	ret = uclass_get_device_by_name(UCLASS_ADC, name, &dev);  in adc_channel_single_shot()
200 	if (ret)  in adc_channel_single_shot()
201 		return ret;  in adc_channel_single_shot()
203 	ret = adc_start_channel(dev, channel);  in adc_channel_single_shot()
204 	if (ret)  in adc_channel_single_shot()
205 		return ret;  in adc_channel_single_shot()
207 	ret = adc_channel_data(dev, channel, data);  in adc_channel_single_shot()
208 	if (ret)  in adc_channel_single_shot()
209 		return ret;  in adc_channel_single_shot()
219 	int channel, ret;  in _adc_channels_single_shot()  local
226 		ret = adc_start_channel(dev, channel);  in _adc_channels_single_shot()
227 		if (ret)  in _adc_channels_single_shot()
228 			return ret;  in _adc_channels_single_shot()
230 		ret = adc_channel_data(dev, channel, &data);  in _adc_channels_single_shot()
231 		if (ret)  in _adc_channels_single_shot()
232 			return ret;  in _adc_channels_single_shot()
246 	int ret;  in adc_channels_single_shot()  local
248 	ret = uclass_get_device_by_name(UCLASS_ADC, name, &dev);  in adc_channels_single_shot()
249 	if (ret)  in adc_channels_single_shot()
250 		return ret;  in adc_channels_single_shot()
252 	ret = adc_start_channels(dev, channel_mask);  in adc_channels_single_shot()
253 	if (ret)  in adc_channels_single_shot()
256 	ret = adc_channels_data(dev, channel_mask, channels);  in adc_channels_single_shot()
257 	if (ret)  in adc_channels_single_shot()
258 		return ret;  in adc_channels_single_shot()
263 	if (ret != -ENOSYS)  in adc_channels_single_shot()
264 		return ret;  in adc_channels_single_shot()
272 	int ret;  in adc_vdd_platdata_update()  local
283 	ret = regulator_get_value(uc_pdata->vdd_supply);  in adc_vdd_platdata_update()
284 	if (ret < 0)  in adc_vdd_platdata_update()
285 		return ret;  in adc_vdd_platdata_update()
287 	uc_pdata->vdd_microvolts = ret;  in adc_vdd_platdata_update()
295 	int ret;  in adc_vss_platdata_update()  local
300 	ret = regulator_get_value(uc_pdata->vss_supply);  in adc_vss_platdata_update()
301 	if (ret < 0)  in adc_vss_platdata_update()
302 		return ret;  in adc_vss_platdata_update()
304 	uc_pdata->vss_microvolts = ret;  in adc_vss_platdata_update()
312 	int ret, value_sign = uc_pdata->vdd_polarity_negative ? -1 : 1;  in adc_vdd_value()  local
315 	ret = adc_vdd_platdata_update(dev);  in adc_vdd_value()
316 	if (ret)  in adc_vdd_value()
317 		return ret;  in adc_vdd_value()
330 	int ret, value_sign = uc_pdata->vss_polarity_negative ? -1 : 1;  in adc_vss_value()  local
333 	ret = adc_vss_platdata_update(dev);  in adc_vss_value()
334 	if (ret)  in adc_vss_value()
335 		return ret;  in adc_vss_value()
348 	int ret, val, vref;  in adc_raw_to_uV()  local
351 	ret = adc_vdd_value(dev, &vref);  in adc_raw_to_uV()
352 	if (ret)  in adc_raw_to_uV()
353 		return ret;  in adc_raw_to_uV()
358 	ret = adc_data_mask(dev, &data_mask);  in adc_raw_to_uV()
359 	if (ret)  in adc_raw_to_uV()
360 		return ret;  in adc_raw_to_uV()
372 	int ret;  in adc_vdd_platdata_set()  local
379 	ret = device_get_supply_regulator(dev, "vdd-supply",  in adc_vdd_platdata_set()
381 	if (!ret)  in adc_vdd_platdata_set()
384 	if (ret != -ENOENT)  in adc_vdd_platdata_set()
385 		return ret;  in adc_vdd_platdata_set()
397 	int ret;  in adc_vss_platdata_set()  local
403 	ret = device_get_supply_regulator(dev, "vss-supply",  in adc_vss_platdata_set()
405 	if (!ret)  in adc_vss_platdata_set()
408 	if (ret != -ENOENT)  in adc_vss_platdata_set()
409 		return ret;  in adc_vss_platdata_set()
420 	int ret;  in adc_pre_probe()  local
423 	ret = adc_vdd_platdata_set(dev);  in adc_pre_probe()
424 	if (ret)  in adc_pre_probe()
425 		pr_err("%s: Can't update Vdd. Error: %d", dev->name, ret);  in adc_pre_probe()
428 	ret = adc_vss_platdata_set(dev);  in adc_pre_probe()
429 	if (ret)  in adc_pre_probe()
430 		pr_err("%s: Can't update Vss. Error: %d", dev->name, ret);  in adc_pre_probe()