[v1,2/2] hwmon: Driver for Nuvoton NCT736X

Message ID	20231204055650.788388-3-kcfeng0@nuvoton.com (mailing list archive)
State	Changes Requested
Headers	show Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="CGAnEIko" From: baneric926@gmail.com To: jdelvare@suse.com, linux@roeck-us.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, corbet@lwn.net Cc: linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, openbmc@lists.ozlabs.org, kwliu@nuvoton.com, kcfeng0@nuvoton.com, DELPHINE_CHIU@wiwynn.com, Bonnie_Lo@wiwynn.com Subject: [PATCH v1 2/2] hwmon: Driver for Nuvoton NCT736X Date: Mon, 4 Dec 2023 13:56:50 +0800 Message-Id: <20231204055650.788388-3-kcfeng0@nuvoton.com> In-Reply-To: <20231204055650.788388-1-kcfeng0@nuvoton.com> References: <20231204055650.788388-1-kcfeng0@nuvoton.com> Precedence: bulk MIME-Version: 1.0 Content-Transfer-Encoding: 8bit
Series	hwmon: Driver for Nuvoton NCT736X \| expand [v1,0/2] hwmon: Driver for Nuvoton NCT736X [v1,1/2] dt-bindings: hwmon: Add nct736x bindings [v1,2/2] hwmon: Driver for Nuvoton NCT736X

diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 72f4e6065bae..98eb0efeb121 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -161,6 +161,7 @@ Hardware Monitoring Kernel Drivers mp5023 nct6683 nct6775 + nct736x nct7802 nct7904 npcm750-pwm-fan diff --git a/Documentation/hwmon/nct736x.rst b/Documentation/hwmon/nct736x.rst new file mode 100644 index 000000000000..b7d64087263a --- /dev/null +++ b/Documentation/hwmon/nct736x.rst @@ -0,0 +1,35 @@ +.. SPDX-License-Identifier: GPL-2.0 + +Kernel driver nct736x +===================== + +Supported chip: + + * Nuvoton NCT7362Y NCT7363Y + + Prefix: nct736x + + Addresses: I2C 0x20, 0x21, 0x22, 0x23 + +Author: Ban Feng <kcfeng0@nuvoton.com> + + +Description +----------- + +The NCT736X is a Fan controller which provides up to 16 independent +FAN input monitors, and up to 16 independent PWM output with SMBus interface. +Besides, NCT7363Y has a built-in watchdog timer which is used for +conditionally generating a system reset output (INT#). + + +Sysfs entries +------------- + +Currently, the driver supports the following features: + +======================= ======================================================= +fanX_input provide current fan rotation value in RPM + +pwmX get or set PWM fan control value. +======================= ======================================================= diff --git a/MAINTAINERS b/MAINTAINERS index eef44c13278c..fed10a0bc49c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14905,6 +14905,8 @@ M: Ban Feng <kcfeng0@nuvoton.com> L: linux-hwmon@vger.kernel.org S: Maintained F: Documentation/devicetree/bindings/hwmon/nuvoton,nct736x.yaml +F: Documentation/hwmon/nct736x.rst +F: drivers/hwmon/nct736x.c NETDEVSIM M: Jakub Kicinski <kuba@kernel.org> diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index cf27523eed5a..b2ca07e6c03a 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -1605,6 +1605,16 @@ config SENSORS_NCT6775_I2C This driver can also be built as a module. If so, the module will be called nct6775-i2c. +config SENSORS_NCT736X + tristate "Nuvoton NCT736X" + depends on I2C + help + If you say yes here you get support for the Nuvoton NCT7362Y, + NCT7363Y hardware monitoring chip. + + This driver can also be built as a module. If so, the module + will be called nct736x. + config SENSORS_NCT7802 tristate "Nuvoton NCT7802Y" depends on I2C diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index e84bd9685b5c..13f378452a4b 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -166,6 +166,7 @@ obj-$(CONFIG_SENSORS_NCT6775_CORE) += nct6775-core.o nct6775-objs := nct6775-platform.o obj-$(CONFIG_SENSORS_NCT6775) += nct6775.o obj-$(CONFIG_SENSORS_NCT6775_I2C) += nct6775-i2c.o +obj-$(CONFIG_SENSORS_NCT736X) += nct736x.o obj-$(CONFIG_SENSORS_NCT7802) += nct7802.o obj-$(CONFIG_SENSORS_NCT7904) += nct7904.o obj-$(CONFIG_SENSORS_NPCM7XX) += npcm750-pwm-fan.o diff --git a/drivers/hwmon/nct736x.c b/drivers/hwmon/nct736x.c new file mode 100644 index 000000000000..4c59e823062d --- /dev/null +++ b/drivers/hwmon/nct736x.c @@ -0,0 +1,479 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2023 Nuvoton Technology corporation. + */ + +#include <linux/bitfield.h> +#include <linux/bits.h> +#include <linux/err.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/i2c.h> +#include <linux/jiffies.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/slab.h> + +#define NCT736X_REG_GPIO_0_3 0x20 +#define NCT736X_REG_GPIO_4_7 0x21 +#define NCT736X_REG_GPIO_10_13 0x22 +#define NCT736X_REG_GPIO_14_17 0x23 +#define NCT7363_REG_WDT 0x2A +#define WDT_CFG_MASK GENMASK(3, 2) +#define WDT_CFG(x) FIELD_PREP(WDT_CFG_MASK, (x)) +#define EN_WDT BIT(7) +#define NCT736X_REG_PWMEN_0_7 0x38 +#define NCT736X_REG_PWMEN_8_15 0x39 +#define NCT736X_REG_FANINEN_0_7 0x41 +#define NCT736X_REG_FANINEN_8_15 0x42 +#define NCT736X_REG_FANINx_HVAL(x) (0x48 + ((x) * 2)) +#define NCT736X_REG_FANINx_LVAL(x) (0x49 + ((x) * 2)) +#define NCT736X_REG_FSCPxDUTY(x) (0x90 + ((x) * 2)) +#define NCT736X_REG_VENDOR_ID 0xFD +#define NCT736X_REG_CHIP_ID 0xFE +#define NCT736X_REG_DEVICE_ID 0xFF + +#define NUVOTON_ID 0x49 +#define CHIP_ID 0x19 +#define DEVICE_ID 0x88 + +#define PWM_SEL(x) (BIT(0) << ((x % 4) * 2)) +#define FANIN_SEL(x) (BIT(1) << ((x % 4) * 2)) +#define BIT_CHECK(x) (BIT(0) << x) + +#define NCT736X_FANINx_LVAL_MASK GENMASK(4, 0) +#define NCT736X_FANIN_MASK GENMASK(12, 0) + +#define NCT736X_PWM_COUNT 16 +#define NCT736X_FANIN_COUNT 16 + +#define REFRESH_INTERVAL (2 * HZ) + +static inline unsigned long FAN_FROM_REG(u16 val) +{ + if ((val >= NCT736X_FANIN_MASK) || (val == 0)) + return 0; + + return (1350000UL / val); +} + +static const unsigned short normal_i2c[] = { + 0x20, 0x21, 0x22, 0x23, I2C_CLIENT_END +}; + +enum chips { nct7362, nct7363 }; + +struct nct736x_data { + struct i2c_client *client; + const struct attribute_group *groups[3]; + struct mutex update_lock; + bool valid; + unsigned long last_updated; /* In jiffies */ + + u16 fan_mask; + u16 fan[NCT736X_FANIN_COUNT]; + u16 pwm_mask; + u8 pwm[NCT736X_PWM_COUNT]; +}; + +/* Read 1-byte register. Returns unsigned reg or -ERRNO on error. */ +static int nct736x_read_reg(struct i2c_client *client, unsigned int reg) +{ + int ret; + + ret = i2c_smbus_read_byte_data(client, reg); + return ret; +} + +/* Write 1-byte register. Returns 0 or -ERRNO on error. */ +static int nct736x_write_reg(struct i2c_client *client, + unsigned int reg, u8 value) +{ + int ret; + + ret = i2c_smbus_write_byte_data(client, reg, value); + return ret; +} + +static struct nct736x_data *nct736x_update_device(struct device *dev) +{ + struct nct736x_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; + int i; + + mutex_lock(&data->update_lock); + + if (!(time_after(jiffies, data->last_updated + REFRESH_INTERVAL) + || !data->valid)) + goto no_sensor_update; + + for (i = 0; i < ARRAY_SIZE(data->fan); i++) { + if (!(data->fan_mask & BIT_CHECK(i))) + continue; + + data->fan[i] = ((u16)nct736x_read_reg(client, + NCT736X_REG_FANINx_HVAL(i))) << 5; + data->fan[i] |= nct736x_read_reg(client, + NCT736X_REG_FANINx_LVAL(i)) & NCT736X_FANINx_LVAL_MASK; + } + + for (i = 0; i < ARRAY_SIZE(data->pwm); i++) { + if (!(data->pwm_mask & BIT_CHECK(i))) + continue; + + data->pwm[i] = nct736x_read_reg(client, + NCT736X_REG_FSCPxDUTY(i)); + } + + data->last_updated = jiffies; + data->valid = true; + +no_sensor_update: + mutex_unlock(&data->update_lock); + return data; +} + +static ssize_t +fan_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + struct nct736x_data *data = nct736x_update_device(dev); + u16 val; + + val = data->fan[sattr->index] & NCT736X_FANIN_MASK; + + return sprintf(buf, "%lu\n", FAN_FROM_REG(val)); +} + +static ssize_t +pwm_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + struct nct736x_data *data = nct736x_update_device(dev); + u16 val; + + val = data->pwm[sattr->index]; + + return sprintf(buf, "%u\n", (val)); +} + +static ssize_t +pwm_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + struct nct736x_data *data = nct736x_update_device(dev); + struct i2c_client *client = data->client; + unsigned long tmpVal; + int err; + + err = kstrtoul(buf, 10, &tmpVal); + if (err) + return err; + + tmpVal = clamp_val(tmpVal, 0, 255); + + mutex_lock(&data->update_lock); + err = nct736x_write_reg(client, NCT736X_REG_FSCPxDUTY(sattr->index), + tmpVal); + if (err) + goto abort; + + data->pwm[sattr->index] = tmpVal; + +abort: + mutex_unlock(&data->update_lock); + return count; +} + +static umode_t nct736x_fan_is_visible(struct kobject *kobj, + struct attribute *attr, int index) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct nct736x_data *data = dev_get_drvdata(dev); + + if (!(data->fan_mask & BIT_CHECK(index))) + return 0; + + return attr->mode; +} + +static umode_t nct736x_pwm_is_visible(struct kobject *kobj, + struct attribute *attr, int index) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct nct736x_data *data = dev_get_drvdata(dev); + + if (!(data->pwm_mask & BIT_CHECK(index))) + return 0; + + return attr->mode; +} + +#define FAN_INPUT 0 + +static SENSOR_DEVICE_ATTR_2_RO(fan1_input, fan, FAN_INPUT, 0); +static SENSOR_DEVICE_ATTR_2_RO(fan2_input, fan, FAN_INPUT, 1); +static SENSOR_DEVICE_ATTR_2_RO(fan3_input, fan, FAN_INPUT, 2); +static SENSOR_DEVICE_ATTR_2_RO(fan4_input, fan, FAN_INPUT, 3); +static SENSOR_DEVICE_ATTR_2_RO(fan5_input, fan, FAN_INPUT, 4); +static SENSOR_DEVICE_ATTR_2_RO(fan6_input, fan, FAN_INPUT, 5); +static SENSOR_DEVICE_ATTR_2_RO(fan7_input, fan, FAN_INPUT, 6); +static SENSOR_DEVICE_ATTR_2_RO(fan8_input, fan, FAN_INPUT, 7); +static SENSOR_DEVICE_ATTR_2_RO(fan9_input, fan, FAN_INPUT, 8); +static SENSOR_DEVICE_ATTR_2_RO(fan10_input, fan, FAN_INPUT, 9); +static SENSOR_DEVICE_ATTR_2_RO(fan11_input, fan, FAN_INPUT, 10); +static SENSOR_DEVICE_ATTR_2_RO(fan12_input, fan, FAN_INPUT, 11); +static SENSOR_DEVICE_ATTR_2_RO(fan13_input, fan, FAN_INPUT, 12); +static SENSOR_DEVICE_ATTR_2_RO(fan14_input, fan, FAN_INPUT, 13); +static SENSOR_DEVICE_ATTR_2_RO(fan15_input, fan, FAN_INPUT, 14); +static SENSOR_DEVICE_ATTR_2_RO(fan16_input, fan, FAN_INPUT, 15); + +static struct attribute *nct736x_attributes_fan[] = { + &sensor_dev_attr_fan1_input.dev_attr.attr, + &sensor_dev_attr_fan2_input.dev_attr.attr, + &sensor_dev_attr_fan3_input.dev_attr.attr, + &sensor_dev_attr_fan4_input.dev_attr.attr, + &sensor_dev_attr_fan5_input.dev_attr.attr, + &sensor_dev_attr_fan6_input.dev_attr.attr, + &sensor_dev_attr_fan7_input.dev_attr.attr, + &sensor_dev_attr_fan8_input.dev_attr.attr, + &sensor_dev_attr_fan9_input.dev_attr.attr, + &sensor_dev_attr_fan10_input.dev_attr.attr, + &sensor_dev_attr_fan11_input.dev_attr.attr, + &sensor_dev_attr_fan12_input.dev_attr.attr, + &sensor_dev_attr_fan13_input.dev_attr.attr, + &sensor_dev_attr_fan14_input.dev_attr.attr, + &sensor_dev_attr_fan15_input.dev_attr.attr, + &sensor_dev_attr_fan16_input.dev_attr.attr, + NULL +}; + +static const struct attribute_group nct736x_group_fan = { + .attrs = nct736x_attributes_fan, + .is_visible = nct736x_fan_is_visible, +}; + +#define PWM_OUTPUT 0 + +static SENSOR_DEVICE_ATTR_2_RW(pwm1, pwm, PWM_OUTPUT, 0); +static SENSOR_DEVICE_ATTR_2_RW(pwm2, pwm, PWM_OUTPUT, 1); +static SENSOR_DEVICE_ATTR_2_RW(pwm3, pwm, PWM_OUTPUT, 2); +static SENSOR_DEVICE_ATTR_2_RW(pwm4, pwm, PWM_OUTPUT, 3); +static SENSOR_DEVICE_ATTR_2_RW(pwm5, pwm, PWM_OUTPUT, 4); +static SENSOR_DEVICE_ATTR_2_RW(pwm6, pwm, PWM_OUTPUT, 5); +static SENSOR_DEVICE_ATTR_2_RW(pwm7, pwm, PWM_OUTPUT, 6); +static SENSOR_DEVICE_ATTR_2_RW(pwm8, pwm, PWM_OUTPUT, 7); +static SENSOR_DEVICE_ATTR_2_RW(pwm9, pwm, PWM_OUTPUT, 8); +static SENSOR_DEVICE_ATTR_2_RW(pwm10, pwm, PWM_OUTPUT, 9); +static SENSOR_DEVICE_ATTR_2_RW(pwm11, pwm, PWM_OUTPUT, 10); +static SENSOR_DEVICE_ATTR_2_RW(pwm12, pwm, PWM_OUTPUT, 11); +static SENSOR_DEVICE_ATTR_2_RW(pwm13, pwm, PWM_OUTPUT, 12); +static SENSOR_DEVICE_ATTR_2_RW(pwm14, pwm, PWM_OUTPUT, 13); +static SENSOR_DEVICE_ATTR_2_RW(pwm15, pwm, PWM_OUTPUT, 14); +static SENSOR_DEVICE_ATTR_2_RW(pwm16, pwm, PWM_OUTPUT, 15); + +static struct attribute *nct736x_attributes_pwm[] = { + &sensor_dev_attr_pwm1.dev_attr.attr, + &sensor_dev_attr_pwm2.dev_attr.attr, + &sensor_dev_attr_pwm3.dev_attr.attr, + &sensor_dev_attr_pwm4.dev_attr.attr, + &sensor_dev_attr_pwm5.dev_attr.attr, + &sensor_dev_attr_pwm6.dev_attr.attr, + &sensor_dev_attr_pwm7.dev_attr.attr, + &sensor_dev_attr_pwm8.dev_attr.attr, + &sensor_dev_attr_pwm9.dev_attr.attr, + &sensor_dev_attr_pwm10.dev_attr.attr, + &sensor_dev_attr_pwm11.dev_attr.attr, + &sensor_dev_attr_pwm12.dev_attr.attr, + &sensor_dev_attr_pwm13.dev_attr.attr, + &sensor_dev_attr_pwm14.dev_attr.attr, + &sensor_dev_attr_pwm15.dev_attr.attr, + &sensor_dev_attr_pwm16.dev_attr.attr, + NULL +}; + +static const struct attribute_group nct736x_group_pwm = { + .attrs = nct736x_attributes_pwm, + .is_visible = nct736x_pwm_is_visible, +}; + +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int nct736x_detect(struct i2c_client *client, + struct i2c_board_info *info) +{ + struct i2c_adapter *adapter = client->adapter; + int vendor, chip, device; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + return -ENODEV; + + vendor = i2c_smbus_read_byte_data(client, NCT736X_REG_VENDOR_ID); + if (vendor != NUVOTON_ID) + return -ENODEV; + + chip = i2c_smbus_read_byte_data(client, NCT736X_REG_CHIP_ID); + if (chip != CHIP_ID) + return -ENODEV; + + device = i2c_smbus_read_byte_data(client, NCT736X_REG_DEVICE_ID); + if (device != DEVICE_ID) + return -ENODEV; + + strscpy(info->type, "nct736x", I2C_NAME_SIZE); + + return 0; +} + +static const struct i2c_device_id nct736x_id[] = { + {"nct7362", nct7362}, + {"nct7363", nct7363}, + {} +}; +MODULE_DEVICE_TABLE(i2c, nct736x_id); + +static int nct736x_init_chip(struct i2c_client *client, + u32 pwm_mask, u32 fanin_mask, u32 wdt_cfg) +{ + const struct i2c_device_id *id = i2c_match_id(nct736x_id, client); + u8 i, gpio0_3, gpio4_7, gpio10_13, gpio14_17; + int ret; + + for (i = 0; i < NCT736X_PWM_COUNT; i++) { + if (i < 4) { + if (pwm_mask & BIT_CHECK(i)) + gpio0_3 |= PWM_SEL(i); + if (fanin_mask & BIT_CHECK(i)) + gpio10_13 |= FANIN_SEL(i); + } else if (i < 8) { + if (pwm_mask & BIT_CHECK(i)) + gpio4_7 |= PWM_SEL(i); + if (fanin_mask & BIT_CHECK(i)) + gpio14_17 |= FANIN_SEL(i); + } else if (i < 12) { + if (pwm_mask & BIT_CHECK(i)) + gpio10_13 |= PWM_SEL(i); + if (fanin_mask & BIT_CHECK(i)) + gpio0_3 |= FANIN_SEL(i); + } else { + if (pwm_mask & BIT_CHECK(i)) + gpio14_17 |= PWM_SEL(i); + if (fanin_mask & BIT_CHECK(i)) + gpio4_7 |= FANIN_SEL(i); + } + } + + /* Pin Function Configuration */ + ret = nct736x_write_reg(client, NCT736X_REG_GPIO_0_3, gpio0_3); + if (ret < 0) + return ret; + ret = nct736x_write_reg(client, NCT736X_REG_GPIO_4_7, gpio4_7); + if (ret < 0) + return ret; + ret = nct736x_write_reg(client, NCT736X_REG_GPIO_10_13, gpio10_13); + if (ret < 0) + return ret; + ret = nct736x_write_reg(client, NCT736X_REG_GPIO_14_17, gpio14_17); + if (ret < 0) + return ret; + + /* PWM and FANIN Monitoring Enable */ + ret = nct736x_write_reg(client, NCT736X_REG_PWMEN_0_7, + pwm_mask & 0xff); + if (ret < 0) + return ret; + ret = nct736x_write_reg(client, + NCT736X_REG_PWMEN_8_15, (pwm_mask >> 8) & 0xff); + if (ret < 0) + return ret; + ret = nct736x_write_reg(client, NCT736X_REG_FANINEN_0_7, + fanin_mask & 0xff); + if (ret < 0) + return ret; + ret = nct736x_write_reg(client, NCT736X_REG_FANINEN_8_15, + (fanin_mask >> 8) & 0xff); + if (ret < 0) + return ret; + + /* Watchdog Timer Configuration */ + if (wdt_cfg != 0xff && id->driver_data == nct7363) { + ret = nct736x_write_reg(client, NCT7363_REG_WDT, wdt_cfg); + if (ret < 0) + return ret; + } + + return 0; +} + +static int nct736x_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct nct736x_data *data; + struct device *hwmon_dev; + u32 pwm_mask, fanin_mask, val, wdt_cfg; + int ret; + + data = devm_kzalloc(dev, sizeof(struct nct736x_data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + i2c_set_clientdata(client, data); + mutex_init(&data->update_lock); + + data->client = client; + + if (of_property_read_u32(dev->of_node, "nuvoton,pwm-mask", &pwm_mask)) + pwm_mask = 0; + if (of_property_read_u32(dev->of_node, + "nuvoton,fanin-mask", &fanin_mask)) + fanin_mask = 0; + if (of_property_read_u32(dev->of_node, "nuvoton,wdt-timeout", &val)) + wdt_cfg = 0xff; + else + wdt_cfg = WDT_CFG(val) | EN_WDT; + + /* Initialize the chip */ + ret = nct736x_init_chip(client, pwm_mask, fanin_mask, wdt_cfg); + if (ret) + return ret; + + data->fan_mask = (u16)fanin_mask; + data->pwm_mask = (u16)pwm_mask; + + data = nct736x_update_device(dev); + + data->groups[0] = &nct736x_group_fan; + data->groups[1] = &nct736x_group_pwm; + data->groups[2] = NULL; + + hwmon_dev = devm_hwmon_device_register_with_groups(dev, + client->name, + data, data->groups); + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +static const struct of_device_id nct736x_of_match[] = { + { .compatible = "nuvoton,nct7362" }, + { .compatible = "nuvoton,nct7363" }, + { }, +}; +MODULE_DEVICE_TABLE(of, nct736x_of_match); + +static struct i2c_driver nct736x_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "nct736x", + .of_match_table = nct736x_of_match, + }, + .probe = nct736x_probe, + .id_table = nct736x_id, + .detect = nct736x_detect, + .address_list = normal_i2c, +}; + +module_i2c_driver(nct736x_driver); + +MODULE_AUTHOR("CWHo <cwho@nuvoton.com>"); +MODULE_AUTHOR("Ban Feng <kcfeng0@nuvoton.com>"); +MODULE_DESCRIPTION("NCT736X Hardware Monitoring Driver"); +MODULE_LICENSE("GPL");

[v1,2/2] hwmon: Driver for Nuvoton NCT736X

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