power/supply/rx51_battery.c

41 static int rx51_battery_read_voltage(struct rx51_device_info *di)
43 	int voltage = rx51_battery_read_adc(di->channel_vbat);
46 		dev_err(di->dev, "Could not read ADC: %d\n", voltage);
93 static int rx51_battery_read_temperature(struct rx51_device_info *di)
97 	int raw = rx51_battery_read_adc(di->channel_temp);
100 		dev_err(di->dev, "Could not read ADC: %d\n", raw);
132 static int rx51_battery_read_capacity(struct rx51_device_info *di)
134 	int capacity = rx51_battery_read_adc(di->channel_bsi);
137 		dev_err(di->dev, "Could not read ADC: %d\n", capacity);
151 	struct rx51_device_info *di = power_supply_get_drvdata(psy);
161 		val->intval = rx51_battery_read_voltage(di) ? 1 : 0;
164 		val->intval = rx51_battery_read_voltage(di);
167 		val->intval = rx51_battery_read_temperature(di);
170 		val->intval = rx51_battery_read_capacity(di);
194 	struct rx51_device_info *di;
196 	di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL);
197 	if (!di)
200 	di->dev = &pdev->dev;
201 	di->bat_desc.name = "rx51-battery";
202 	di->bat_desc.type = POWER_SUPPLY_TYPE_BATTERY;
203 	di->bat_desc.properties = rx51_battery_props;
204 	di->bat_desc.num_properties = ARRAY_SIZE(rx51_battery_props);
205 	di->bat_desc.get_property = rx51_battery_get_property;
207 	psy_cfg.drv_data = di;
209 	di->channel_temp = devm_iio_channel_get(di->dev, "temp");
210 	if (IS_ERR(di->channel_temp))
211 		return PTR_ERR(di->channel_temp);
213 	di->channel_bsi  = devm_iio_channel_get(di->dev, "bsi");
214 	if (IS_ERR(di->channel_bsi))
215 		return PTR_ERR(di->channel_bsi);
217 	di->channel_vbat = devm_iio_channel_get(di->dev, "vbat");
218 	if (IS_ERR(di->channel_vbat))
219 		return PTR_ERR(di->channel_vbat);
221 	di->bat = devm_power_supply_register(di->dev, &di->bat_desc, &psy_cfg);
222 	if (IS_ERR(di->bat))
223 		return PTR_ERR(di->bat);