--- /dev/null
+From 97c95dbbba64dbd6e98e033e396695f328033966 Mon Sep 17 00:00:00 2001
+From: Robert Marko <robert.marko@sartura.hr>
+Date: Thu, 21 Jan 2021 14:44:33 +0100
+Subject: [PATCH 1/4] hwmon: add Texas Instruments TPS23861 driver
+
+Add basic monitoring support as well as port on/off control for Texas
+Instruments TPS23861 PoE PSE IC.
+
+Signed-off-by: Robert Marko <robert.marko@sartura.hr>
+Cc: Luka Perkov <luka.perkov@sartura.hr>
+Reviewed-by: Guenter Roeck <linux@roeck-us.net>
+Link: https://lore.kernel.org/r/20210121134434.2782405-2-robert.marko@sartura.hr
+Signed-off-by: Guenter Roeck <linux@roeck-us.net>
+---
+ Documentation/hwmon/index.rst | 1 +
+ Documentation/hwmon/tps23861.rst | 41 +++
+ drivers/hwmon/Kconfig | 11 +
+ drivers/hwmon/Makefile | 1 +
+ drivers/hwmon/tps23861.c | 601 +++++++++++++++++++++++++++++++
+ 5 files changed, 655 insertions(+)
+ create mode 100644 Documentation/hwmon/tps23861.rst
+ create mode 100644 drivers/hwmon/tps23861.c
+
+--- a/Documentation/hwmon/index.rst
++++ b/Documentation/hwmon/index.rst
+@@ -172,6 +172,7 @@ Hardware Monitoring Kernel Drivers
+ tmp401
+ tmp421
+ tmp513
++ tps23861
+ tps40422
+ tps53679
+ twl4030-madc-hwmon
+--- /dev/null
++++ b/Documentation/hwmon/tps23861.rst
+@@ -0,0 +1,41 @@
++.. SPDX-License-Identifier: GPL-2.0-only
++
++Kernel driver tps23861
++======================
++
++Supported chips:
++ * Texas Instruments TPS23861
++
++ Prefix: 'tps23861'
++
++ Datasheet: https://www.ti.com/lit/gpn/tps23861
++
++Author: Robert Marko <robert.marko@sartura.hr>
++
++Description
++-----------
++
++This driver supports hardware monitoring for Texas Instruments TPS23861 PoE PSE.
++
++TPS23861 is a quad port IEEE802.3at PSE controller with optional I2C control
++and monitoring capabilities.
++
++TPS23861 offers three modes of operation: Auto, Semi-Auto and Manual.
++
++This driver only supports the Auto mode of operation providing monitoring
++as well as enabling/disabling the four ports.
++
++Sysfs entries
++-------------
++
++======================= =====================================================================
++in[0-3]_input Voltage on ports [1-4]
++in[0-3]_label "Port[1-4]"
++in4_input IC input voltage
++in4_label "Input"
++temp1_input IC die temperature
++temp1_label "Die"
++curr[1-4]_input Current on ports [1-4]
++in[1-4]_label "Port[1-4]"
++in[0-3]_enable Enable/disable ports [1-4]
++======================= =====================================================================
+--- 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
+--- a/drivers/hwmon/Makefile
++++ b/drivers/hwmon/Makefile
+@@ -141,6 +141,7 @@ obj-$(CONFIG_SENSORS_MAX31790) += max317
+ obj-$(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
+--- /dev/null
++++ b/drivers/hwmon/tps23861.c
+@@ -0,0 +1,601 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/*
++ * Copyright (c) 2020 Sartura Ltd.
++ *
++ * Driver for the TI TPS23861 PoE PSE.
++ *
++ * Author: Robert Marko <robert.marko@sartura.hr>
++ */
++
++#include <linux/bitfield.h>
++#include <linux/debugfs.h>
++#include <linux/delay.h>
++#include <linux/hwmon-sysfs.h>
++#include <linux/hwmon.h>
++#include <linux/i2c.h>
++#include <linux/module.h>
++#include <linux/of_device.h>
++#include <linux/regmap.h>
++
++#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_RESISTANCE_LSB 0x60
++#define PORT_1_RESISTANCE_MSB 0x61
++#define PORT_2_RESISTANCE_LSB 0x62
++#define PORT_2_RESISTANCE_MSB 0x63
++#define PORT_3_RESISTANCE_LSB 0x64
++#define PORT_3_RESISTANCE_MSB 0x65
++#define PORT_4_RESISTANCE_LSB 0x66
++#define PORT_4_RESISTANCE_MSB 0x67
++#define PORT_N_RESISTANCE_LSB_OFFSET 0x02
++#define PORT_RESISTANCE_MASK GENMASK(13, 0)
++#define PORT_RESISTANCE_RSN_MASK GENMASK(15, 14)
++#define PORT_RESISTANCE_RSN_OTHER 0
++#define PORT_RESISTANCE_RSN_LOW 1
++#define PORT_RESISTANCE_RSN_OPEN 2
++#define PORT_RESISTANCE_RSN_SHORT 3
++#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 OPERATING_MODE 0x12
++#define OPERATING_MODE_OFF 0
++#define OPERATING_MODE_MANUAL 1
++#define OPERATING_MODE_SEMI 2
++#define OPERATING_MODE_AUTO 3
++#define OPERATING_MODE_PORT_1_MASK GENMASK(1, 0)
++#define OPERATING_MODE_PORT_2_MASK GENMASK(3, 2)
++#define OPERATING_MODE_PORT_3_MASK GENMASK(5, 4)
++#define OPERATING_MODE_PORT_4_MASK GENMASK(7, 6)
++
++#define DETECT_CLASS_RESTART 0x18
++#define POWER_ENABLE 0x19
++#define TPS23861_NUM_PORTS 4
++
++#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 */
++#define RESISTANCE_LSB 110966 /* 11.0966 Ohm*/
++#define RESISTANCE_LSB_LOW 157216 /* 15.7216 Ohm*/
++
++struct tps23861_data {
++ struct regmap *regmap;
++ u32 shunt_resistor;
++ struct i2c_client *client;
++ struct dentry *debugfs_dir;
++};
++
++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 < TPS23861_NUM_PORTS) {
++ 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_port_disable(struct tps23861_data *data, int channel)
++{
++ unsigned int regval = 0;
++ int err;
++
++ regval |= BIT(channel + 4);
++ err = regmap_write(data->regmap, POWER_ENABLE, regval);
++
++ return err;
++}
++
++static int tps23861_port_enable(struct tps23861_data *data, int channel)
++{
++ unsigned int regval = 0;
++ int err;
++
++ regval |= BIT(channel);
++ regval |= BIT(channel + 4);
++ err = regmap_write(data->regmap, DETECT_CLASS_RESTART, regval);
++
++ return err;
++}
++
++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:
++ case hwmon_temp_label:
++ return 0444;
++ default:
++ return 0;
++ }
++ case hwmon_in:
++ switch (attr) {
++ case hwmon_in_input:
++ case hwmon_in_label:
++ return 0444;
++ case hwmon_in_enable:
++ return 0200;
++ default:
++ return 0;
++ }
++ case hwmon_curr:
++ switch (attr) {
++ case hwmon_curr_input:
++ case hwmon_curr_label:
++ return 0444;
++ default:
++ return 0;
++ }
++ default:
++ return 0;
++ }
++}
++
++static int tps23861_write(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_in:
++ switch (attr) {
++ case hwmon_in_enable:
++ if (val == 0)
++ err = tps23861_port_disable(data, channel);
++ else if (val == 1)
++ err = tps23861_port_enable(data, channel);
++ else
++ err = -EINVAL;
++ break;
++ default:
++ return -EOPNOTSUPP;
++ }
++ break;
++ default:
++ return -EOPNOTSUPP;
++ }
++
++ return err;
++}
++
++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 -EOPNOTSUPP;
++ }
++ break;
++ case hwmon_in:
++ switch (attr) {
++ case hwmon_in_input:
++ err = tps23861_read_voltage(data, channel, val);
++ break;
++ default:
++ return -EOPNOTSUPP;
++ }
++ break;
++ case hwmon_curr:
++ switch (attr) {
++ case hwmon_curr_input:
++ err = tps23861_read_current(data, channel, val);
++ break;
++ default:
++ return -EOPNOTSUPP;
++ }
++ break;
++ default:
++ return -EOPNOTSUPP;
++ }
++
++ 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:
++ *str = tps23861_port_label[channel];
++ break;
++ case hwmon_temp:
++ *str = "Die";
++ 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_T_LABEL),
++ HWMON_CHANNEL_INFO(in,
++ HWMON_I_INPUT | HWMON_I_ENABLE | HWMON_I_LABEL,
++ HWMON_I_INPUT | HWMON_I_ENABLE | HWMON_I_LABEL,
++ HWMON_I_INPUT | HWMON_I_ENABLE | HWMON_I_LABEL,
++ HWMON_I_INPUT | HWMON_I_ENABLE | 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),
++ NULL
++};
++
++static const struct hwmon_ops tps23861_hwmon_ops = {
++ .is_visible = tps23861_is_visible,
++ .write = tps23861_write,
++ .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 char *tps23861_port_operating_mode(struct tps23861_data *data, int port)
++{
++ unsigned int regval;
++ int mode;
++
++ regmap_read(data->regmap, OPERATING_MODE, ®val);
++
++ switch (port) {
++ case 1:
++ mode = FIELD_GET(OPERATING_MODE_PORT_1_MASK, regval);
++ break;
++ case 2:
++ mode = FIELD_GET(OPERATING_MODE_PORT_2_MASK, regval);
++ break;
++ case 3:
++ mode = FIELD_GET(OPERATING_MODE_PORT_3_MASK, regval);
++ break;
++ case 4:
++ mode = FIELD_GET(OPERATING_MODE_PORT_4_MASK, regval);
++ break;
++ default:
++ mode = -EINVAL;
++ }
++
++ switch (mode) {
++ case OPERATING_MODE_OFF:
++ return "Off";
++ case OPERATING_MODE_MANUAL:
++ return "Manual";
++ case OPERATING_MODE_SEMI:
++ return "Semi-Auto";
++ case OPERATING_MODE_AUTO:
++ return "Auto";
++ default:
++ return "Invalid";
++ }
++}
++
++static char *tps23861_port_detect_status(struct tps23861_data *data, int port)
++{
++ unsigned int regval;
++
++ regmap_read(data->regmap,
++ PORT_1_STATUS + (port - 1),
++ ®val);
++
++ switch (FIELD_GET(PORT_STATUS_DETECT_MASK, regval)) {
++ case PORT_DETECT_UNKNOWN:
++ return "Unknown device";
++ case PORT_DETECT_SHORT:
++ return "Short circuit";
++ case PORT_DETECT_RESISTANCE_LOW:
++ return "Too low resistance";
++ case PORT_DETECT_RESISTANCE_OK:
++ return "Valid resistance";
++ case PORT_DETECT_RESISTANCE_HIGH:
++ return "Too high resistance";
++ case PORT_DETECT_OPEN_CIRCUIT:
++ return "Open circuit";
++ case PORT_DETECT_MOSFET_FAULT:
++ return "MOSFET fault";
++ case PORT_DETECT_LEGACY:
++ return "Legacy device";
++ case PORT_DETECT_CAPACITANCE_INVALID_BEYOND:
++ return "Invalid capacitance, beyond clamp voltage";
++ case PORT_DETECT_CAPACITANCE_INVALID_DELTA:
++ return "Invalid capacitance, insufficient voltage delta";
++ case PORT_DETECT_CAPACITANCE_OUT_OF_RANGE:
++ return "Valid capacitance, outside of legacy range";
++ case PORT_DETECT_RESERVED:
++ case PORT_DETECT_RESERVED_2:
++ default:
++ return "Invalid";
++ }
++}
++
++static char *tps23861_port_class_status(struct tps23861_data *data, int port)
++{
++ unsigned int regval;
++
++ regmap_read(data->regmap,
++ PORT_1_STATUS + (port - 1),
++ ®val);
++
++ switch (FIELD_GET(PORT_STATUS_CLASS_MASK, regval)) {
++ case PORT_CLASS_UNKNOWN:
++ return "Unknown";
++ case PORT_CLASS_RESERVED:
++ case PORT_CLASS_0:
++ return "0";
++ case PORT_CLASS_1:
++ return "1";
++ case PORT_CLASS_2:
++ return "2";
++ case PORT_CLASS_3:
++ return "3";
++ case PORT_CLASS_4:
++ return "4";
++ case PORT_CLASS_OVERCURRENT:
++ return "Overcurrent";
++ case PORT_CLASS_MISMATCH:
++ return "Mismatch";
++ default:
++ return "Invalid";
++ }
++}
++
++static char *tps23861_port_poe_plus_status(struct tps23861_data *data, int port)
++{
++ unsigned int regval;
++
++ regmap_read(data->regmap, POE_PLUS, ®val);
++
++ if (BIT(port + 3) & regval)
++ return "Yes";
++ else
++ return "No";
++}
++
++static int tps23861_port_resistance(struct tps23861_data *data, int port)
++{
++ u16 regval;
++
++ regmap_bulk_read(data->regmap,
++ PORT_1_RESISTANCE_LSB + PORT_N_RESISTANCE_LSB_OFFSET * (port - 1),
++ ®val,
++ 2);
++
++ switch (FIELD_GET(PORT_RESISTANCE_RSN_MASK, regval)) {
++ case PORT_RESISTANCE_RSN_OTHER:
++ return (FIELD_GET(PORT_RESISTANCE_MASK, regval) * RESISTANCE_LSB) / 10000;
++ case PORT_RESISTANCE_RSN_LOW:
++ return (FIELD_GET(PORT_RESISTANCE_MASK, regval) * RESISTANCE_LSB_LOW) / 10000;
++ case PORT_RESISTANCE_RSN_SHORT:
++ case PORT_RESISTANCE_RSN_OPEN:
++ default:
++ return 0;
++ }
++}
++
++static int tps23861_port_status_show(struct seq_file *s, void *data)
++{
++ struct tps23861_data *priv = s->private;
++ int i;
++
++ for (i = 1; i < TPS23861_NUM_PORTS + 1; i++) {
++ seq_printf(s, "Port: \t\t%d\n", i);
++ seq_printf(s, "Operating mode: %s\n", tps23861_port_operating_mode(priv, i));
++ seq_printf(s, "Detected: \t%s\n", tps23861_port_detect_status(priv, i));
++ seq_printf(s, "Class: \t\t%s\n", tps23861_port_class_status(priv, i));
++ seq_printf(s, "PoE Plus: \t%s\n", tps23861_port_poe_plus_status(priv, i));
++ seq_printf(s, "Resistance: \t%d\n", tps23861_port_resistance(priv, i));
++ seq_putc(s, '\n');
++ }
++
++ return 0;
++}
++
++DEFINE_SHOW_ATTRIBUTE(tps23861_port_status);
++
++static void tps23861_init_debugfs(struct tps23861_data *data)
++{
++ data->debugfs_dir = debugfs_create_dir(data->client->name, NULL);
++
++ debugfs_create_file("port_status",
++ 0400,
++ data->debugfs_dir,
++ data,
++ &tps23861_port_status_fops);
++}
++
++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->client = client;
++ i2c_set_clientdata(client, data);
++
++ 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))
++ 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,
++ NULL);
++ if (IS_ERR(hwmon_dev))
++ return PTR_ERR(hwmon_dev);
++
++ tps23861_init_debugfs(data);
++
++ return 0;
++}
++
++static int tps23861_remove(struct i2c_client *client)
++{
++ struct tps23861_data *data = i2c_get_clientdata(client);
++
++ debugfs_remove_recursive(data->debugfs_dir);
++
++ return 0;
++}
++
++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,
++ .remove = tps23861_remove,
++ .driver = {
++ .name = "tps23861",
++ .of_match_table = of_match_ptr(tps23861_of_match),
++ },
++};
++module_i2c_driver(tps23861_driver);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Robert Marko <robert.marko@sartura.hr>");
++MODULE_DESCRIPTION("TI TPS23861 PoE PSE");
projects / openwrt / openwrt.git / commitdiff