1 // SPDX-License-Identifier: GPL-2.0-only
13 #include <linux/hwmon-sysfs.h>
105 #define TEMPERATURE_LSB			652 /* 0.652 degrees Celsius */
131 	err = regmap_read(data->regmap, TEMPERATURE, &regval);  in tps23861_read_temp()
135 	*val = (regval * TEMPERATURE_LSB) - 20000;  in tps23861_read_temp()
147 		err = regmap_bulk_read(data->regmap,  in tps23861_read_voltage()
151 		err = regmap_bulk_read(data->regmap,  in tps23861_read_voltage()
170 	if (data->shunt_resistor == SHUNT_RESISTOR_DEFAULT)  in tps23861_read_current()
175 	err = regmap_bulk_read(data->regmap,  in tps23861_read_current()
192 	err = regmap_write(data->regmap, POWER_ENABLE, regval);  in tps23861_port_disable()
204 	err = regmap_write(data->regmap, DETECT_CLASS_RESTART, regval);  in tps23861_port_enable()
259 				err = -EINVAL;  in tps23861_write()
262 			return -EOPNOTSUPP;  in tps23861_write()
266 		return -EOPNOTSUPP;  in tps23861_write()
285 			return -EOPNOTSUPP;  in tps23861_read()
294 			return -EOPNOTSUPP;  in tps23861_read()
303 			return -EOPNOTSUPP;  in tps23861_read()
307 		return -EOPNOTSUPP;  in tps23861_read()
334 		return -EOPNOTSUPP;  in tps23861_read_string()
376 	regmap_read(data->regmap, OPERATING_MODE, &regval);  in tps23861_port_operating_mode()
392 		mode = -EINVAL;  in tps23861_port_operating_mode()
401 		return "Semi-Auto";  in tps23861_port_operating_mode()
413 	regmap_read(data->regmap,  in tps23861_port_detect_status()
414 		    PORT_1_STATUS + (port - 1),  in tps23861_port_detect_status()
439 		return "Valid capacitance, outside of legacy range";  in tps23861_port_detect_status()
451 	regmap_read(data->regmap,  in tps23861_port_class_status()
452 		    PORT_1_STATUS + (port - 1),  in tps23861_port_class_status()
482 	regmap_read(data->regmap, POE_PLUS, &regval);  in tps23861_port_poe_plus_status()
494 	regmap_bulk_read(data->regmap,  in tps23861_port_resistance()
495 			 PORT_1_RESISTANCE_LSB + PORT_N_RESISTANCE_LSB_OFFSET * (port - 1),  in tps23861_port_resistance()
513 	struct tps23861_data *priv = s->private;  in tps23861_port_status_show()
518 		seq_printf(s, "Operating mode: %s\n", tps23861_port_operating_mode(priv, i));  in tps23861_port_status_show()
533 	data->debugfs_dir = debugfs_create_dir(data->client->name, NULL);  in tps23861_init_debugfs()
537 			    data->debugfs_dir,  in tps23861_init_debugfs()
544 	struct device *dev = &client->dev;  in tps23861_probe()
551 		return -ENOMEM;  in tps23861_probe()
553 	data->client = client;  in tps23861_probe()
556 	data->regmap = devm_regmap_init_i2c(client, &tps23861_regmap_config);  in tps23861_probe()
557 	if (IS_ERR(data->regmap)) {  in tps23861_probe()
559 		return PTR_ERR(data->regmap);  in tps23861_probe()
562 	if (!of_property_read_u32(dev->of_node, "shunt-resistor-micro-ohms", &shunt_resistor))  in tps23861_probe()
563 		data->shunt_resistor = shunt_resistor;  in tps23861_probe()
565 		data->shunt_resistor = SHUNT_RESISTOR_DEFAULT;  in tps23861_probe()
567 	if (data->shunt_resistor == SHUNT_RESISTOR_DEFAULT)  in tps23861_probe()
568 		regmap_clear_bits(data->regmap,  in tps23861_probe()
572 		regmap_set_bits(data->regmap,  in tps23861_probe()
576 	hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name,  in tps23861_probe()
591 	debugfs_remove_recursive(data->debugfs_dir);  in tps23861_remove()