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()
148 		err = regmap_bulk_read(data->regmap,  in tps23861_read_voltage()
152 		err = regmap_bulk_read(data->regmap,  in tps23861_read_voltage()
173 	if (data->shunt_resistor == SHUNT_RESISTOR_DEFAULT)  in tps23861_read_current()
178 	err = regmap_bulk_read(data->regmap,  in tps23861_read_current()
196 	err = regmap_write(data->regmap, POWER_ENABLE, regval);  in tps23861_port_disable()
208 	err = regmap_write(data->regmap, DETECT_CLASS_RESTART, regval);  in tps23861_port_enable()
263 				err = -EINVAL;  in tps23861_write()
266 			return -EOPNOTSUPP;  in tps23861_write()
270 		return -EOPNOTSUPP;  in tps23861_write()
289 			return -EOPNOTSUPP;  in tps23861_read()
298 			return -EOPNOTSUPP;  in tps23861_read()
307 			return -EOPNOTSUPP;  in tps23861_read()
311 		return -EOPNOTSUPP;  in tps23861_read()
338 		return -EOPNOTSUPP;  in tps23861_read_string()
388 		return "Semi-Auto";  in port_operating_mode_string()
420 		return "Valid capacitance, outside of legacy range";  in port_detect_status_string()
463 	regmap_bulk_read(data->regmap,  in tps23861_port_resistance()
483 	struct tps23861_data *priv = s->private;  in tps23861_port_status_show()
486 	regmap_read(priv->regmap, OPERATING_MODE, &mode);  in tps23861_port_status_show()
487 	regmap_read(priv->regmap, POE_PLUS, &poe_plus);  in tps23861_port_status_show()
490 		regmap_read(priv->regmap, PORT_1_STATUS + i, &status);  in tps23861_port_status_show()
493 		seq_printf(s, "Operating mode: %s\n", port_operating_mode_string(mode, i));  in tps23861_port_status_show()
511 	debugfs_name = devm_kasprintf(&data->client->dev, GFP_KERNEL, "%s-%s",  in tps23861_init_debugfs()
512 				      data->client->name, dev_name(hwmon_dev));  in tps23861_init_debugfs()
516 	data->debugfs_dir = debugfs_create_dir(debugfs_name, NULL);  in tps23861_init_debugfs()
520 			    data->debugfs_dir,  in tps23861_init_debugfs()
527 	struct device *dev = &client->dev;  in tps23861_probe()
534 		return -ENOMEM;  in tps23861_probe()
536 	data->client = client;  in tps23861_probe()
539 	data->regmap = devm_regmap_init_i2c(client, &tps23861_regmap_config);  in tps23861_probe()
540 	if (IS_ERR(data->regmap)) {  in tps23861_probe()
542 		return PTR_ERR(data->regmap);  in tps23861_probe()
545 	if (!of_property_read_u32(dev->of_node, "shunt-resistor-micro-ohms", &shunt_resistor))  in tps23861_probe()
546 		data->shunt_resistor = shunt_resistor;  in tps23861_probe()
548 		data->shunt_resistor = SHUNT_RESISTOR_DEFAULT;  in tps23861_probe()
550 	if (data->shunt_resistor == SHUNT_RESISTOR_DEFAULT)  in tps23861_probe()
551 		regmap_clear_bits(data->regmap,  in tps23861_probe()
555 		regmap_set_bits(data->regmap,  in tps23861_probe()
559 	hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name,  in tps23861_probe()
574 	debugfs_remove_recursive(data->debugfs_dir);  in tps23861_remove()