From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 190DDC0018C for ; Sat, 19 Dec 2020 19:12:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C98F82395C for ; Sat, 19 Dec 2020 19:12:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727312AbgLSTMb (ORCPT ); Sat, 19 Dec 2020 14:12:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40952 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727309AbgLSTM2 (ORCPT ); Sat, 19 Dec 2020 14:12:28 -0500 Received: from mail-ed1-x536.google.com (mail-ed1-x536.google.com [IPv6:2a00:1450:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CECCAC061285 for ; Sat, 19 Dec 2020 11:11:31 -0800 (PST) Received: by mail-ed1-x536.google.com with SMTP id y24so5090266edt.10 for ; Sat, 19 Dec 2020 11:11:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sartura-hr.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=s7hO3Gp8tJyHmhIuRXQ3RM2n0ZDtWWcfg2Jl7QCBQi8=; b=uNvkmqd6DQGcsGK/IU6R7EiBlhAM2mZanB+UhHwAZ1FGPMroFqM/zjQN5sVUrRd6Su xMQF2PdjyMeygeNgD+CAe2PnZ1f2ijbIoNcy+/AICmd4/ixtA2xURBPLDNAuGwNv9dVw dWzmqYG7rPoaC1FSnAV121nalKzLzdmKYItgY+FRQbrJh0AB0quveTH7zusciAQL9NJu d+Y1VaxY3L3n+2kDFwFlgZpWpkyNdu1SQbh3AeaIqvMNQvn93gZuaCEu0ZDEayKBNIyQ vQdwrJZPFrutu8yrLn9tqBzc7sWqifb/tOjYTq2yOB5pWHbKrD2Js3hFuW9+oUwBly4P fnLA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=s7hO3Gp8tJyHmhIuRXQ3RM2n0ZDtWWcfg2Jl7QCBQi8=; b=Cy1VaZx3nj0MsWGfxujxYiLUdu4W4T2jaQRoQRiyy25o1/qXd3xruWletewN5OGP9E M9UM9zasv8qDVsJFl7r5G+EPycexlMhX4kT/qSCj5KuId3pMHRDb7l1mIoEMS4+oSTLe Fn0Ws8L4JnFd6NJ1x1+guks+WZZLvrCBnN2+LRdzlxwaKi/AG/hMU25p2n+Jd91UqyMz WD0Xb43VeAvqjFMBSIuroAh8HKS5IAcqvtV3etvXvB+mhbNFTpQ1e+N2R4VhXlNzHNUi Vfqlz8ZJo6osItKAeHxp8thALXAx83e+61+qyZ2/1dc+xd6ubjn4kU6+VXpiUQ374M/c 7Aew== X-Gm-Message-State: AOAM533pkCOvFM4WRmE1nrxYl0R8HsJA4fCcX8mIu7AkqPnvEPcVoh5N U2XrxB/A9KoLx6tf1agva2Apvw== X-Google-Smtp-Source: ABdhPJy+m59OF7qK9x+W3UTVSEifZDoTbWIgZqwYmDK4g96i3KNCrKdFeYRLGLgiPhRii0B/rm6maQ== X-Received: by 2002:a50:9991:: with SMTP id m17mr9892263edb.48.1608405090427; Sat, 19 Dec 2020 11:11:30 -0800 (PST) Received: from localhost.localdomain ([88.207.4.44]) by smtp.googlemail.com with ESMTPSA id o10sm7081955eju.89.2020.12.19.11.11.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 19 Dec 2020 11:11:29 -0800 (PST) From: Robert Marko To: jdelvare@suse.com, robh+dt@kernel.org, linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Robert Marko , Luka Perkov Subject: [PATCH v2 2/3] hwmon: add Texas Instruments TPS23861 driver Date: Sat, 19 Dec 2020 20:11:20 +0100 Message-Id: <20201219191121.85142-2-robert.marko@sartura.hr> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201219191121.85142-1-robert.marko@sartura.hr> References: <20201219191121.85142-1-robert.marko@sartura.hr> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org Add basic monitoring support as well as port on/off control for Texas Instruments TPS23861 PoE PSE IC. Signed-off-by: Robert Marko Cc: Luka Perkov --- Changes in v2: * Convert to devm_hwmon_device_register_with_info() * Change license drivers/hwmon/Kconfig | 11 + drivers/hwmon/Makefile | 1 + drivers/hwmon/tps23861.c | 538 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 550 insertions(+) create mode 100644 drivers/hwmon/tps23861.c diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index a850e4f0e0bd..3368ecfa7a9c 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -1102,6 +1102,17 @@ config SENSORS_TC654 This driver can also be built as a module. If so, the module will be called tc654. +config SENSORS_TPS23861 + tristate "Texas Instruments TPS23861 PoE PSE" + depends on I2C + select REGMAP_I2C + help + If you say yes here you get support for Texas Instruments + TPS23861 802.3at PoE PSE chips. + + This driver can also be built as a module. If so, the module + will be called tps23861. + config SENSORS_MENF21BMC_HWMON tristate "MEN 14F021P00 BMC Hardware Monitoring" depends on MFD_MENF21BMC diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 9db2903b61e5..7493e9d5dc43 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -141,6 +141,7 @@ obj-$(CONFIG_SENSORS_MAX31790) += max31790.o obj-$(CONFIG_SENSORS_MC13783_ADC)+= mc13783-adc.o obj-$(CONFIG_SENSORS_MCP3021) += mcp3021.o obj-$(CONFIG_SENSORS_TC654) += tc654.o +obj-$(CONFIG_SENSORS_TPS23861) += tps23861.o obj-$(CONFIG_SENSORS_MLXREG_FAN) += mlxreg-fan.o obj-$(CONFIG_SENSORS_MENF21BMC_HWMON) += menf21bmc_hwmon.o obj-$(CONFIG_SENSORS_MR75203) += mr75203.o diff --git a/drivers/hwmon/tps23861.c b/drivers/hwmon/tps23861.c new file mode 100644 index 000000000000..2bb804ccdc8e --- /dev/null +++ b/drivers/hwmon/tps23861.c @@ -0,0 +1,538 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2020 Sartura Ltd. + * + * Driver for the TI TPS23861 PoE PSE. + * + * Author: Robert Marko + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define TEMPERATURE 0x2c +#define INPUT_VOLTAGE_LSB 0x2e +#define INPUT_VOLTAGE_MSB 0x2f +#define PORT_1_CURRENT_LSB 0x30 +#define PORT_1_CURRENT_MSB 0x31 +#define PORT_1_VOLTAGE_LSB 0x32 +#define PORT_1_VOLTAGE_MSB 0x33 +#define PORT_2_CURRENT_LSB 0x34 +#define PORT_2_CURRENT_MSB 0x35 +#define PORT_2_VOLTAGE_LSB 0x36 +#define PORT_2_VOLTAGE_MSB 0x37 +#define PORT_3_CURRENT_LSB 0x38 +#define PORT_3_CURRENT_MSB 0x39 +#define PORT_3_VOLTAGE_LSB 0x3a +#define PORT_3_VOLTAGE_MSB 0x3b +#define PORT_4_CURRENT_LSB 0x3c +#define PORT_4_CURRENT_MSB 0x3d +#define PORT_4_VOLTAGE_LSB 0x3e +#define PORT_4_VOLTAGE_MSB 0x3f +#define PORT_N_CURRENT_LSB_OFFSET 0x04 +#define PORT_N_VOLTAGE_LSB_OFFSET 0x04 +#define VOLTAGE_CURRENT_MASK GENMASK(13, 0) +#define PORT_1_STATUS 0x0c +#define PORT_2_STATUS 0x0d +#define PORT_3_STATUS 0x0e +#define PORT_4_STATUS 0x0f +#define PORT_STATUS_CLASS_MASK GENMASK(7, 4) +#define PORT_STATUS_DETECT_MASK GENMASK(3, 0) +#define PORT_CLASS_UNKNOWN 0 +#define PORT_CLASS_1 1 +#define PORT_CLASS_2 2 +#define PORT_CLASS_3 3 +#define PORT_CLASS_4 4 +#define PORT_CLASS_RESERVED 5 +#define PORT_CLASS_0 6 +#define PORT_CLASS_OVERCURRENT 7 +#define PORT_CLASS_MISMATCH 8 +#define PORT_DETECT_UNKNOWN 0 +#define PORT_DETECT_SHORT 1 +#define PORT_DETECT_RESERVED 2 +#define PORT_DETECT_RESISTANCE_LOW 3 +#define PORT_DETECT_RESISTANCE_OK 4 +#define PORT_DETECT_RESISTANCE_HIGH 5 +#define PORT_DETECT_OPEN_CIRCUIT 6 +#define PORT_DETECT_RESERVED_2 7 +#define PORT_DETECT_MOSFET_FAULT 8 +#define PORT_DETECT_LEGACY 9 +/* Measurment beyond clamp voltage */ +#define PORT_DETECT_CAPACITANCE_INVALID_BEYOND 10 +/* Insufficient voltage delta */ +#define PORT_DETECT_CAPACITANCE_INVALID_DELTA 11 +#define PORT_DETECT_CAPACITANCE_OUT_OF_RANGE 12 +#define POE_PLUS 0x40 + +#define DETECT_CLASS_RESTART 0x18 +#define POWER_ENABLE 0x19 + +#define TEMPERATURE_LSB 652 /* 0.652 degrees Celsius */ +#define VOLTAGE_LSB 3662 /* 3.662 mV */ +#define SHUNT_RESISTOR_DEFAULT 255000 /* 255 mOhm */ +#define CURRENT_LSB_255 62260 /* 62.260 uA */ +#define CURRENT_LSB_250 61039 /* 61.039 uA */ + +struct tps23861_data { + struct regmap *regmap; + u32 shunt_resistor; +}; + +static struct regmap_config tps23861_regmap_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int tps23861_read_temp(struct tps23861_data *data, long *val) +{ + unsigned int regval; + int err; + + err = regmap_read(data->regmap, TEMPERATURE, ®val); + if (err < 0) + return err; + + *val = (regval * TEMPERATURE_LSB) - 20000; + + return 0; +} + +static int tps23861_read_voltage(struct tps23861_data *data, int channel, + long *val) +{ + unsigned int regval; + int err; + + if (channel < 4) { + err = regmap_bulk_read(data->regmap, + PORT_1_VOLTAGE_LSB + channel * PORT_N_VOLTAGE_LSB_OFFSET, + ®val, 2); + } else { + err = regmap_bulk_read(data->regmap, + INPUT_VOLTAGE_LSB, + ®val, 2); + } + if (err < 0) + return err; + + *val = (FIELD_GET(VOLTAGE_CURRENT_MASK, regval) * VOLTAGE_LSB) / 1000; + + return 0; +} + +static int tps23861_read_current(struct tps23861_data *data, int channel, + long *val) +{ + unsigned int current_lsb; + unsigned int regval; + int err; + + if (data->shunt_resistor == SHUNT_RESISTOR_DEFAULT) + current_lsb = CURRENT_LSB_255; + else + current_lsb = CURRENT_LSB_250; + + err = regmap_bulk_read(data->regmap, + PORT_1_CURRENT_LSB + channel * PORT_N_CURRENT_LSB_OFFSET, + ®val, 2); + if (err < 0) + return err; + + *val = (FIELD_GET(VOLTAGE_CURRENT_MASK, regval) * current_lsb) / 1000000; + + return 0; +} + +static int tps23861_calculate_power(struct tps23861_data *data, int channel, + long *val) +{ + long voltage, current_ma; + int err; + + err = tps23861_read_voltage(data, channel, &voltage); + if (err < 0) + return err; + + err = tps23861_read_current(data, channel, ¤t_ma); + if (err < 0) + return err; + + *val = voltage * current_ma; + + return 0; +} + +static umode_t tps23861_is_visible(const void *data, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_temp: + switch (attr) { + case hwmon_temp_input: + return 0444; + } + break; + case hwmon_in: + switch (attr) { + case hwmon_in_input: + case hwmon_in_label: + return 0444; + } + break; + case hwmon_curr: + switch (attr) { + case hwmon_curr_input: + case hwmon_curr_label: + return 0444; + } + break; + case hwmon_power: + switch (attr) { + case hwmon_power_input: + case hwmon_power_label: + return 0444; + } + break; + default: + break; + } + + return 0; +} + +static int tps23861_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct tps23861_data *data = dev_get_drvdata(dev); + int err; + + switch (type) { + case hwmon_temp: + switch (attr) { + case hwmon_temp_input: + err = tps23861_read_temp(data, val); + break; + default: + return -EINVAL; + } + break; + case hwmon_in: + switch (attr) { + case hwmon_in_input: + err = tps23861_read_voltage(data, channel, val); + break; + default: + return -EINVAL; + } + break; + case hwmon_curr: + switch (attr) { + case hwmon_curr_input: + err = tps23861_read_current(data, channel, val); + break; + default: + return -EINVAL; + } + break; + case hwmon_power: + switch (attr) { + case hwmon_power_input: + err = tps23861_calculate_power(data, channel, val); + break; + default: + return -EINVAL; + } + break; + default: + return -EINVAL; + } + + return err; +} + +static const char * const tps23861_port_label[] = { + "Port1", + "Port2", + "Port3", + "Port4", + "Input", +}; + +static int tps23861_read_string(struct device *dev, + enum hwmon_sensor_types type, + u32 attr, int channel, const char **str) +{ + switch (type) { + case hwmon_in: + case hwmon_curr: + case hwmon_power: + *str = tps23861_port_label[channel]; + break; + default: + return -EOPNOTSUPP; + } + return 0; +} + +static const struct hwmon_channel_info *tps23861_info[] = { + HWMON_CHANNEL_INFO(chip, + HWMON_C_REGISTER_TZ), + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT), + HWMON_CHANNEL_INFO(in, + HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL), + HWMON_CHANNEL_INFO(curr, + HWMON_C_INPUT | HWMON_C_LABEL, + HWMON_C_INPUT | HWMON_C_LABEL, + HWMON_C_INPUT | HWMON_C_LABEL, + HWMON_C_INPUT | HWMON_C_LABEL), + HWMON_CHANNEL_INFO(power, + HWMON_P_INPUT | HWMON_P_LABEL, + HWMON_P_INPUT | HWMON_P_LABEL, + HWMON_P_INPUT | HWMON_P_LABEL, + HWMON_P_INPUT | HWMON_P_LABEL), + NULL +}; + +static const struct hwmon_ops tps23861_hwmon_ops = { + .is_visible = tps23861_is_visible, + .read = tps23861_read, + .read_string = tps23861_read_string, +}; + +static const struct hwmon_chip_info tps23861_chip_info = { + .ops = &tps23861_hwmon_ops, + .info = tps23861_info, +}; + +static ssize_t tps23861_port_status_show(struct device *dev, + struct device_attribute *da, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct tps23861_data *data = dev_get_drvdata(dev); + char *detect_status, *class_status; + unsigned int regval; + u8 class, detect; + + regmap_read(data->regmap, attr->index, ®val); + detect = FIELD_GET(PORT_STATUS_DETECT_MASK, regval); + class = FIELD_GET(PORT_STATUS_CLASS_MASK, regval); + + switch (detect) { + case PORT_DETECT_UNKNOWN: + detect_status = "Unknown device"; + break; + case PORT_DETECT_SHORT: + detect_status = "Short circuit detected"; + break; + case PORT_DETECT_RESISTANCE_LOW: + detect_status = "Too low resistance detected"; + break; + case PORT_DETECT_RESISTANCE_OK: + detect_status = "Valid resistance detected"; + break; + case PORT_DETECT_RESISTANCE_HIGH: + detect_status = "Too high resistance detected"; + break; + case PORT_DETECT_OPEN_CIRCUIT: + detect_status = "Open circuit detected"; + break; + case PORT_DETECT_MOSFET_FAULT: + detect_status = "MOSFET fault detected"; + break; + case PORT_DETECT_LEGACY: + detect_status = "Legacy device detected"; + break; + case PORT_DETECT_CAPACITANCE_INVALID_BEYOND: + detect_status = "Invalid capacitance, beyond clamp voltage"; + break; + case PORT_DETECT_CAPACITANCE_INVALID_DELTA: + detect_status = "Invalid capacitance, insufficient voltage delta"; + break; + case PORT_DETECT_CAPACITANCE_OUT_OF_RANGE: + detect_status = "Valid capacitance, outside of legacy range"; + break; + case PORT_DETECT_RESERVED: + case PORT_DETECT_RESERVED_2: + default: + return -EINVAL; + } + + switch (class) { + case PORT_CLASS_UNKNOWN: + class_status = "Unknown class"; + break; + case PORT_CLASS_RESERVED: + case PORT_CLASS_0: + class_status = "Class 0"; + break; + case PORT_CLASS_1: + class_status = "Class 1"; + break; + case PORT_CLASS_2: + class_status = "Class 2"; + break; + case PORT_CLASS_3: + class_status = "Class 3"; + break; + case PORT_CLASS_4: + class_status = "Class 4"; + break; + case PORT_CLASS_OVERCURRENT: + class_status = "Overcurrent"; + break; + case PORT_CLASS_MISMATCH: + class_status = "Class mismatch"; + break; + default: + return -EINVAL; + } + + return snprintf(buf, PAGE_SIZE, "%s, %s\n", detect_status, class_status); +} + +static ssize_t tps23861_poe_plus_show(struct device *dev, + struct device_attribute *da, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct tps23861_data *data = dev_get_drvdata(dev); + char *ports[4]; + unsigned int regval; + int i; + + regmap_read(data->regmap, attr->index, ®val); + + for (i = 0; i < 4; i++) { + if (BIT(i + 4) & regval) + ports[i] = "Yes"; + else + ports[i] = "No"; + } + + return snprintf(buf, PAGE_SIZE, "Port 1: %s\nPort 2: %s\nPort 3: %s\nPort 4: %s\n", + ports[0], ports[1], ports[2], ports[3]); +} + +static ssize_t tps23861_port_disable_store(struct device *dev, + struct device_attribute *da, + const char *buf, size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct tps23861_data *data = dev_get_drvdata(dev); + unsigned int regval, port; + int ret; + + ret = kstrtouint(buf, 0, &port); + if (ret < 0) + return ret; + + regmap_read(data->regmap, attr->index, ®val); + regval |= BIT(port + 3); + regmap_write(data->regmap, attr->index, regval); + + return count; +} + +static ssize_t tps23861_port_enable_store(struct device *dev, + struct device_attribute *da, + const char *buf, size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct tps23861_data *data = dev_get_drvdata(dev); + unsigned int regval, port; + int ret; + + ret = kstrtouint(buf, 0, &port); + if (ret < 0) + return ret; + + regmap_read(data->regmap, attr->index, ®val); + regval |= BIT(port - 1); + regval |= BIT(port + 3); + regmap_write(data->regmap, attr->index, regval); + + return count; +} + +static SENSOR_DEVICE_ATTR_RO(port1_status, tps23861_port_status, PORT_1_STATUS); +static SENSOR_DEVICE_ATTR_RO(port2_status, tps23861_port_status, PORT_2_STATUS); +static SENSOR_DEVICE_ATTR_RO(port3_status, tps23861_port_status, PORT_3_STATUS); +static SENSOR_DEVICE_ATTR_RO(port4_status, tps23861_port_status, PORT_4_STATUS); +static SENSOR_DEVICE_ATTR_RO(poe_plus_status, tps23861_poe_plus, POE_PLUS); +static SENSOR_DEVICE_ATTR_WO(port_disable, tps23861_port_disable, POWER_ENABLE); +static SENSOR_DEVICE_ATTR_WO(port_enable, tps23861_port_enable, DETECT_CLASS_RESTART); + +static struct attribute *tps23861_attrs[] = { + &sensor_dev_attr_port1_status.dev_attr.attr, + &sensor_dev_attr_port2_status.dev_attr.attr, + &sensor_dev_attr_port3_status.dev_attr.attr, + &sensor_dev_attr_port4_status.dev_attr.attr, + &sensor_dev_attr_poe_plus_status.dev_attr.attr, + &sensor_dev_attr_port_disable.dev_attr.attr, + &sensor_dev_attr_port_enable.dev_attr.attr, + NULL, +}; + +static const struct attribute_group tps23861_group = { + .attrs = tps23861_attrs, +}; +__ATTRIBUTE_GROUPS(tps23861); + +static int tps23861_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct tps23861_data *data; + struct device *hwmon_dev; + u32 shunt_resistor; + + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->regmap = devm_regmap_init_i2c(client, &tps23861_regmap_config); + if (IS_ERR(data->regmap)) { + dev_err(dev, "failed to allocate register map\n"); + return PTR_ERR(data->regmap); + } + + if (of_property_read_u32(dev->of_node, "shunt-resistor-micro-ohms", &shunt_resistor) < 0) + data->shunt_resistor = shunt_resistor; + else + data->shunt_resistor = SHUNT_RESISTOR_DEFAULT; + + hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, + data, &tps23861_chip_info, + tps23861_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +static const struct of_device_id __maybe_unused tps23861_of_match[] = { + { .compatible = "ti,tps23861", }, + { }, +}; +MODULE_DEVICE_TABLE(of, tps23861_of_match); + +static struct i2c_driver tps23861_driver = { + .probe_new = tps23861_probe, + .driver = { + .name = "tps23861", + .of_match_table = of_match_ptr(tps23861_of_match), + }, +}; +module_i2c_driver(tps23861_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Robert Marko "); +MODULE_DESCRIPTION("TI TPS23861 PoE PSE"); -- 2.29.2