28 static int check_channel(struct udevice *dev, int value, bool number_or_mask,  in check_channel()  argument
31 	struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev);  in check_channel()
43 	       __FILE__, caller_function, dev->name);  in check_channel()
48 static int adc_supply_enable(struct udevice *dev)  in adc_supply_enable()  argument
50 	struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev);  in adc_supply_enable()
65 		pr_err("%s: can't enable %s-supply!", dev->name, supply_type);  in adc_supply_enable()
70 int adc_data_mask(struct udevice *dev, unsigned int *data_mask)  in adc_data_mask()  argument
72 	struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev);  in adc_data_mask()
81 int adc_channel_mask(struct udevice *dev, unsigned int *channel_mask)  in adc_channel_mask()  argument
83 	struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev);  in adc_channel_mask()
93 int adc_stop(struct udevice *dev)  in adc_stop()  argument
95 	const struct adc_ops *ops = dev_get_driver_ops(dev);  in adc_stop()
100 	return ops->stop(dev);  in adc_stop()
103 int adc_start_channel(struct udevice *dev, int channel)  in adc_start_channel()  argument
105 	const struct adc_ops *ops = dev_get_driver_ops(dev);  in adc_start_channel()
111 	ret = check_channel(dev, channel, CHECK_NUMBER, __func__);  in adc_start_channel()
115 	ret = adc_supply_enable(dev);  in adc_start_channel()
119 	return ops->start_channel(dev, channel);  in adc_start_channel()
122 int adc_start_channels(struct udevice *dev, unsigned int channel_mask)  in adc_start_channels()  argument
124 	const struct adc_ops *ops = dev_get_driver_ops(dev);  in adc_start_channels()
130 	ret = check_channel(dev, channel_mask, CHECK_MASK, __func__);  in adc_start_channels()
134 	ret = adc_supply_enable(dev);  in adc_start_channels()
138 	return ops->start_channels(dev, channel_mask);  in adc_start_channels()
141 int adc_channel_data(struct udevice *dev, int channel, unsigned int *data)  in adc_channel_data()  argument
143 	struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev);  in adc_channel_data()
144 	const struct adc_ops *ops = dev_get_driver_ops(dev);  in adc_channel_data()
151 	ret = check_channel(dev, channel, CHECK_NUMBER, __func__);  in adc_channel_data()
156 		ret = ops->channel_data(dev, channel, data);  in adc_channel_data()
167 int adc_channels_data(struct udevice *dev, unsigned int channel_mask,  in adc_channels_data()  argument
170 	struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev);  in adc_channels_data()
172 	const struct adc_ops *ops = dev_get_driver_ops(dev);  in adc_channels_data()
178 	ret = check_channel(dev, channel_mask, CHECK_MASK, __func__);  in adc_channels_data()
183 		ret = ops->channels_data(dev, channel_mask, channels);  in adc_channels_data()
196 	struct udevice *dev;  in adc_channel_single_shot()  local
199 	ret = uclass_get_device_by_name(UCLASS_ADC, name, &dev);  in adc_channel_single_shot()
203 	ret = adc_start_channel(dev, channel);  in adc_channel_single_shot()
207 	ret = adc_channel_data(dev, channel, data);  in adc_channel_single_shot()
214 static int _adc_channels_single_shot(struct udevice *dev,  in _adc_channels_single_shot()  argument
226 		ret = adc_start_channel(dev, channel);  in _adc_channels_single_shot()
230 		ret = adc_channel_data(dev, channel, &data);  in _adc_channels_single_shot()
245 	struct udevice *dev;  in adc_channels_single_shot()  local
248 	ret = uclass_get_device_by_name(UCLASS_ADC, name, &dev);  in adc_channels_single_shot()
252 	ret = adc_start_channels(dev, channel_mask);  in adc_channels_single_shot()
256 	ret = adc_channels_data(dev, channel_mask, channels);  in adc_channels_single_shot()
266 	return _adc_channels_single_shot(dev, channel_mask, channels);  in adc_channels_single_shot()
269 static int adc_vdd_platdata_update(struct udevice *dev)  in adc_vdd_platdata_update()  argument
271 	struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev);  in adc_vdd_platdata_update()
292 static int adc_vss_platdata_update(struct udevice *dev)  in adc_vss_platdata_update()  argument
294 	struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev);  in adc_vss_platdata_update()
309 int adc_vdd_value(struct udevice *dev, int *uV)  in adc_vdd_value()  argument
311 	struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev);  in adc_vdd_value()
315 	ret = adc_vdd_platdata_update(dev);  in adc_vdd_value()
327 int adc_vss_value(struct udevice *dev, int *uV)  in adc_vss_value()  argument
329 	struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev);  in adc_vss_value()
333 	ret = adc_vss_platdata_update(dev);  in adc_vss_value()
345 int adc_raw_to_uV(struct udevice *dev, unsigned int raw, int *uV)  in adc_raw_to_uV()  argument
351 	ret = adc_vdd_value(dev, &vref);  in adc_raw_to_uV()
355 	if (!adc_vss_value(dev, &val))  in adc_raw_to_uV()
358 	ret = adc_data_mask(dev, &data_mask);  in adc_raw_to_uV()
369 static int adc_vdd_platdata_set(struct udevice *dev)  in adc_vdd_platdata_set()  argument
371 	struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev);  in adc_vdd_platdata_set()
376 	uc_pdata->vdd_polarity_negative = dev_read_bool(dev, prop);  in adc_vdd_platdata_set()
379 	ret = device_get_supply_regulator(dev, "vdd-supply",  in adc_vdd_platdata_set()
382 		return adc_vdd_platdata_update(dev);  in adc_vdd_platdata_set()
389 	uc_pdata->vdd_microvolts = dev_read_u32_default(dev, prop, -ENODATA);  in adc_vdd_platdata_set()
394 static int adc_vss_platdata_set(struct udevice *dev)  in adc_vss_platdata_set()  argument
396 	struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev);  in adc_vss_platdata_set()
401 	uc_pdata->vss_polarity_negative = dev_read_bool(dev, prop);  in adc_vss_platdata_set()
403 	ret = device_get_supply_regulator(dev, "vss-supply",  in adc_vss_platdata_set()
406 		return adc_vss_platdata_update(dev);  in adc_vss_platdata_set()
413 	uc_pdata->vss_microvolts = dev_read_u32_default(dev, prop, -ENODATA);  in adc_vss_platdata_set()
418 static int adc_pre_probe(struct udevice *dev)  in adc_pre_probe()  argument
423 	ret = adc_vdd_platdata_set(dev);  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()
430 		pr_err("%s: Can't update Vss. Error: %d", dev->name, ret);  in adc_pre_probe()