55 	int ret = 0;  in adc_supply_enable()  local
59 		ret = regulator_set_enable(uc_pdata->vdd_supply, true);  in adc_supply_enable()
62 	if (!ret && uc_pdata->vss_supply) {  in adc_supply_enable()
64 		ret = regulator_set_enable(uc_pdata->vss_supply, true);  in adc_supply_enable()
67 	if (ret)  in adc_supply_enable()
70 	return ret;  in adc_supply_enable()
100 	int ret;  in adc_start_channel()  local
105 	ret = check_channel(dev, channel, CHECK_NUMBER, __func__);  in adc_start_channel()
106 	if (ret)  in adc_start_channel()
107 		return ret;  in adc_start_channel()
109 	ret = adc_supply_enable(dev);  in adc_start_channel()
110 	if (ret)  in adc_start_channel()
111 		return ret;  in adc_start_channel()
119 	int ret;  in adc_start_channels()  local
124 	ret = check_channel(dev, channel_mask, CHECK_MASK, __func__);  in adc_start_channels()
125 	if (ret)  in adc_start_channels()
126 		return ret;  in adc_start_channels()
128 	ret = adc_supply_enable(dev);  in adc_start_channels()
129 	if (ret)  in adc_start_channels()
130 		return ret;  in adc_start_channels()
140 	int ret;  in adc_channel_data()  local
145 	ret = check_channel(dev, channel, CHECK_NUMBER, __func__);  in adc_channel_data()
146 	if (ret)  in adc_channel_data()
147 		return ret;  in adc_channel_data()
150 		ret = ops->channel_data(dev, channel, data);  in adc_channel_data()
151 		if (!ret || ret != -EBUSY)  in adc_channel_data()
158 	return ret;  in adc_channel_data()
167 	int ret;  in adc_channels_data()  local
172 	ret = check_channel(dev, channel_mask, CHECK_MASK, __func__);  in adc_channels_data()
173 	if (ret)  in adc_channels_data()
174 		return ret;  in adc_channels_data()
177 		ret = ops->channels_data(dev, channel_mask, channels);  in adc_channels_data()
178 		if (!ret || ret != -EBUSY)  in adc_channels_data()
185 	return ret;  in adc_channels_data()
191 	int ret;  in adc_channel_single_shot()  local
193 	ret = uclass_get_device_by_name(UCLASS_ADC, name, &dev);  in adc_channel_single_shot()
194 	if (ret)  in adc_channel_single_shot()
195 		return ret;  in adc_channel_single_shot()
197 	ret = adc_start_channel(dev, channel);  in adc_channel_single_shot()
198 	if (ret)  in adc_channel_single_shot()
199 		return ret;  in adc_channel_single_shot()
201 	ret = adc_channel_data(dev, channel, data);  in adc_channel_single_shot()
202 	if (ret)  in adc_channel_single_shot()
203 		return ret;  in adc_channel_single_shot()
213 	int channel, ret;  in _adc_channels_single_shot()  local
220 		ret = adc_start_channel(dev, channel);  in _adc_channels_single_shot()
221 		if (ret)  in _adc_channels_single_shot()
222 			return ret;  in _adc_channels_single_shot()
224 		ret = adc_channel_data(dev, channel, &data);  in _adc_channels_single_shot()
225 		if (ret)  in _adc_channels_single_shot()
226 			return ret;  in _adc_channels_single_shot()
240 	int ret;  in adc_channels_single_shot()  local
242 	ret = uclass_get_device_by_name(UCLASS_ADC, name, &dev);  in adc_channels_single_shot()
243 	if (ret)  in adc_channels_single_shot()
244 		return ret;  in adc_channels_single_shot()
246 	ret = adc_start_channels(dev, channel_mask);  in adc_channels_single_shot()
247 	if (ret)  in adc_channels_single_shot()
250 	ret = adc_channels_data(dev, channel_mask, channels);  in adc_channels_single_shot()
251 	if (ret)  in adc_channels_single_shot()
252 		return ret;  in adc_channels_single_shot()
257 	if (ret != -ENOSYS)  in adc_channels_single_shot()
258 		return ret;  in adc_channels_single_shot()
267 	int ret;  in adc_vdd_platdata_update()  local
275 	ret = device_get_supply_regulator(dev, "vdd-supply",  in adc_vdd_platdata_update()
277 	if (ret)  in adc_vdd_platdata_update()
278 		return ret;  in adc_vdd_platdata_update()
280 	ret = regulator_get_value(uc_pdata->vdd_supply);  in adc_vdd_platdata_update()
281 	if (ret < 0)  in adc_vdd_platdata_update()
282 		return ret;  in adc_vdd_platdata_update()
284 	uc_pdata->vdd_microvolts = ret;  in adc_vdd_platdata_update()
296 	int ret;  in adc_vss_platdata_update()  local
298 	ret = device_get_supply_regulator(dev, "vss-supply",  in adc_vss_platdata_update()
300 	if (ret)  in adc_vss_platdata_update()
301 		return ret;  in adc_vss_platdata_update()
303 	ret = regulator_get_value(uc_pdata->vss_supply);  in adc_vss_platdata_update()
304 	if (ret < 0)  in adc_vss_platdata_update()
305 		return ret;  in adc_vss_platdata_update()
307 	uc_pdata->vss_microvolts = ret;  in adc_vss_platdata_update()
318 	int ret, value_sign = uc_pdata->vdd_polarity_negative ? -1 : 1;  in adc_vdd_value()  local
324 	ret = adc_vdd_platdata_update(dev);  in adc_vdd_value()
325 	if (ret)  in adc_vdd_value()
326 		return ret;  in adc_vdd_value()
339 	int ret, value_sign = uc_pdata->vss_polarity_negative ? -1 : 1;  in adc_vss_value()  local
345 	ret = adc_vss_platdata_update(dev);  in adc_vss_value()
346 	if (ret)  in adc_vss_value()
347 		return ret;  in adc_vss_value()
360 	int ret;  in adc_vdd_platdata_set()  local
366 	ret = adc_vdd_platdata_update(dev);  in adc_vdd_platdata_set()
367 	if (ret != -ENOENT)  in adc_vdd_platdata_set()
368 		return ret;  in adc_vdd_platdata_set()
380 	int ret;  in adc_vss_platdata_set()  local
386 	ret = adc_vss_platdata_update(dev);  in adc_vss_platdata_set()
387 	if (ret != -ENOENT)  in adc_vss_platdata_set()
388 		return ret;  in adc_vss_platdata_set()
399 	int ret;  in adc_pre_probe()  local
402 	ret = adc_vdd_platdata_set(dev);  in adc_pre_probe()
403 	if (ret)  in adc_pre_probe()
404 		pr_err("%s: Can't update Vdd. Error: %d", dev->name, ret);  in adc_pre_probe()
407 	ret = adc_vss_platdata_set(dev);  in adc_pre_probe()
408 	if (ret)  in adc_pre_probe()
409 		pr_err("%s: Can't update Vss. Error: %d", dev->name, ret);  in adc_pre_probe()