2  * INA3221 Triple Current/Voltage Monitor
4  * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/
18 #include <linux/hwmon-sysfs.h>
90  * struct ina3221_data - device specific information
93  * @shunt_resistors: Array of resistor values per channel
107 	ret = regmap_read(ina->regmap, reg, &regval);  in ina3221_read_value()
122 	unsigned int reg = sd_attr->index;  in ina3221_show_bus_voltage()
140 	unsigned int reg = sd_attr->index;  in ina3221_show_shunt_voltage()
156 	unsigned int reg = sd_attr->index;  in ina3221_show_current()
157 	unsigned int channel = register_channel[reg];  in ina3221_show_current()  local
158 	int resistance_uo = ina->shunt_resistors[channel];  in ina3221_show_current()
177 	unsigned int reg = sd_attr->index;  in ina3221_set_current()
178 	unsigned int channel = register_channel[reg];  in ina3221_set_current()  local
179 	int resistance_uo = ina->shunt_resistors[channel];  in ina3221_set_current()
194 	voltage_uv = clamp_val(voltage_uv, -163800, 163800);  in ina3221_set_current()
199 	ret = regmap_write(ina->regmap, reg, val);  in ina3221_set_current()
211 	unsigned int channel = sd_attr->index;  in ina3221_show_shunt()  local
214 	resistance_uo = ina->shunt_resistors[channel];  in ina3221_show_shunt()
225 	unsigned int channel = sd_attr->index;  in ina3221_set_shunt()  local
235 	ina->shunt_resistors[channel] = val;  in ina3221_set_shunt()
245 	unsigned int field = sd_attr->index;  in ina3221_show_alert()
249 	ret = regmap_field_read(ina->fields[field], &regval);  in ina3221_show_alert()
321 	/* channel 1 */
331 	/* channel 2 */
341 	/* channel 3 */
376 	struct device *dev = &client->dev;  in ina3221_probe()
383 		return -ENOMEM;  in ina3221_probe()
385 	ina->regmap = devm_regmap_init_i2c(client, &ina3221_regmap_config);  in ina3221_probe()
386 	if (IS_ERR(ina->regmap)) {  in ina3221_probe()
388 		return PTR_ERR(ina->regmap);  in ina3221_probe()
392 		ina->fields[i] = devm_regmap_field_alloc(dev,  in ina3221_probe()
393 							 ina->regmap,  in ina3221_probe()
395 		if (IS_ERR(ina->fields[i])) {  in ina3221_probe()
397 			return PTR_ERR(ina->fields[i]);  in ina3221_probe()
402 		ina->shunt_resistors[i] = INA3221_RSHUNT_DEFAULT;  in ina3221_probe()
404 	ret = regmap_field_write(ina->fields[F_RST], true);  in ina3221_probe()
411 							   client->name,  in ina3221_probe()