diff --git a/Documentation/hwmon/asus_wmi_ec_sensors.rst b/Documentation/hwmon/asus_wmi_ec_sensors.rst
new file mode 100644
index 000000000000..1b287f229e86
--- /dev/null
+++ b/Documentation/hwmon/asus_wmi_ec_sensors.rst
@@ -0,0 +1,38 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+Kernel driver asus_wmi_ec_sensors
+=================================
+
+Supported boards:
+ * PRIME X570-PRO,
+ * Pro WS X570-ACE,
+ * ROG CROSSHAIR VIII DARK HERO,
+ * ROG CROSSHAIR VIII FORMULA,
+ * ROG CROSSHAIR VIII HERO,
+ * ROG STRIX B550-E GAMING,
+ * ROG STRIX B550-I GAMING,
+ * ROG STRIX X570-E GAMING.
+
+Authors:
+    - Eugene Shalygin <eugene.shalygin@gmail.com>
+
+Description:
+------------
+ASUS mainboards publish hardware monitoring information via Super I/O
+chip and the ACPI embedded controller (EC) registers. Some of the sensors
+are only available via the EC.
+
+ASUS WMI interface provides a method (BREC) to read data from EC registers,
+which is utilized by this driver to publish those sensor readings to the
+HWMON system. The driver is aware of and reads the following sensors:
+
+1. Chipset (PCH) temperature
+2. CPU package temperature
+3. Motherboard temperature
+4. Readings from the T_Sensor header
+5. VRM temperature
+6. CPU_Opt fan RPM
+7. Chipset fan RPM
+8. Readings from the "Water flow meter" header (RPM)
+9. Readings from the "Water In" and "Water Out" temperature headers
+10. CPU current
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
index 7046bf1870d9..23deb1a1202f 100644
--- a/Documentation/hwmon/index.rst
+++ b/Documentation/hwmon/index.rst
@@ -43,6 +43,7 @@ Hardware Monitoring Kernel Drivers
    asb100
    asc7621
    aspeed-pwm-tacho
+   asus_wmi_ec_sensors
    bcm54140
    bel-pfe
    bpa-rs600
diff --git a/MAINTAINERS b/MAINTAINERS
index cc5eaf4e65dc..05448435991d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2937,6 +2937,13 @@ W:	http://acpi4asus.sf.net
 F:	drivers/platform/x86/asus*.c
 F:	drivers/platform/x86/eeepc*.c
 
+ASUS WMI HARDWARE MONITOR DRIVER
+M:	Eugene Shalygin <eugene.shalygin@gmail.com>
+M:	Denis Pauk <pauk.denis@gmail.com>
+L:	linux-hwmon@vger.kernel.org
+S:	Maintained
+F:	drivers/hwmon/asus_wmi_ec_sensors.c
+
 ASUS WIRELESS RADIO CONTROL DRIVER
 M:	João Paulo Rechi Vita <jprvita@gmail.com>
 L:	platform-driver-x86@vger.kernel.org
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 64bd3dfba2c4..01d50fb9da54 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -2215,6 +2215,18 @@ config SENSORS_ATK0110
 	  This driver can also be built as a module. If so, the module
 	  will be called asus_atk0110.
 
+config SENSORS_ASUS_WMI_EC
+	tristate "ASUS WMI B550/X570"
+	depends on ACPI_WMI
+	help
+	  If you say yes here you get support for the ACPI embedded controller
+	  hardware monitoring interface found in B550/X570 ASUS motherboards.
+	  This driver will provide readings of fans, voltages and temperatures
+	  through the system firmware.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called asus_wmi_sensors_ec.
+
 endif # ACPI
 
 endif # HWMON
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index baee6a8d4dd1..aae2ff5c7335 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_HWMON_VID)		+= hwmon-vid.o
 # APCI drivers
 obj-$(CONFIG_SENSORS_ACPI_POWER) += acpi_power_meter.o
 obj-$(CONFIG_SENSORS_ATK0110)	+= asus_atk0110.o
+obj-$(CONFIG_SENSORS_ASUS_WMI_EC)	+= asus_wmi_ec_sensors.o
 
 # Native drivers
 # asb100, then w83781d go first, as they can override other drivers' addresses.
diff --git a/drivers/hwmon/asus_wmi_ec_sensors.c b/drivers/hwmon/asus_wmi_ec_sensors.c
new file mode 100644
index 000000000000..f612abc66c89
--- /dev/null
+++ b/drivers/hwmon/asus_wmi_ec_sensors.c
@@ -0,0 +1,621 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * HWMON driver for ASUS B550/X570 motherboards that publish sensor
+ * values via the embedded controller registers.
+ *
+ * Copyright (C) 2021 Eugene Shalygin <eugene.shalygin@gmail.com>
+ * Copyright (C) 2018-2019 Ed Brindley <kernel@maidavale.org>
+ *
+ * EC provides:
+ * - Chipset temperature
+ * - CPU temperature
+ * - Motherboard temperature
+ * - T_Sensor temperature
+ * - VRM temperature
+ * - Water In temperature
+ * - Water Out temperature
+ * - CPU Optional Fan RPM
+ * - Chipset Fan RPM
+ * - Water Flow Fan RPM
+ * - CPU current
+ */
+
+#include <linux/acpi.h>
+#include <linux/dmi.h>
+#include <linux/hwmon.h>
+#include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/nls.h>
+#include <linux/units.h>
+#include <linux/wmi.h>
+
+#include <asm/unaligned.h>
+
+#define ASUSWMI_MONITORING_GUID		"466747A0-70EC-11DE-8A39-0800200C9A66"
+#define ASUSWMI_METHODID_BLOCK_READ_EC	0x42524543 /* BREC */
+/* From the ASUS DSDT source */
+#define ASUSWMI_BREC_REGISTERS_MAX	16
+#define ASUSWMI_MAX_BUF_LEN		128
+#define SENSOR_LABEL_LEN		16
+
+static u32 hwmon_attributes[] = {
+	[hwmon_chip]	= HWMON_C_REGISTER_TZ,
+	[hwmon_temp]	= HWMON_T_INPUT | HWMON_T_LABEL,
+	[hwmon_in]	= HWMON_I_INPUT | HWMON_I_LABEL,
+	[hwmon_curr]	= HWMON_C_INPUT | HWMON_C_LABEL,
+	[hwmon_fan]	= HWMON_F_INPUT | HWMON_F_LABEL,
+};
+
+struct asus_wmi_ec_sensor_address {
+	u8 index;
+	u8 bank;
+	u8 size;
+};
+
+#define MAKE_SENSOR_ADDRESS(size_i, bank_i, index_i) {	\
+	.size = size_i,					\
+	.bank = bank_i,					\
+	.index = index_i,				\
+}
+
+struct ec_sensor_info {
+	struct asus_wmi_ec_sensor_address addr;
+	char label[SENSOR_LABEL_LEN];
+	enum hwmon_sensor_types type;
+};
+
+#define EC_SENSOR(sensor_label, sensor_type, size, bank, index) {	\
+	.addr = MAKE_SENSOR_ADDRESS(size, bank, index),			\
+	.label = sensor_label,						\
+	.type = sensor_type,						\
+}
+
+enum known_ec_sensor {
+	SENSOR_TEMP_CHIPSET,
+	SENSOR_TEMP_CPU,
+	SENSOR_TEMP_MB,
+	SENSOR_TEMP_T_SENSOR,
+	SENSOR_TEMP_VRM,
+	SENSOR_FAN_CPU_OPT,
+	SENSOR_FAN_CHIPSET,
+	SENSOR_FAN_VRM_HS,
+	SENSOR_FAN_WATER_FLOW,
+	SENSOR_CURR_CPU,
+	SENSOR_TEMP_WATER_IN,
+	SENSOR_TEMP_WATER_OUT,
+	SENSOR_MAX
+};
+
+/* All known sensors for ASUS EC controllers */
+static const struct ec_sensor_info known_ec_sensors[] = {
+	[SENSOR_TEMP_CHIPSET]	= EC_SENSOR("Chipset", hwmon_temp, 1, 0x00, 0x3a),
+	[SENSOR_TEMP_CPU]	= EC_SENSOR("CPU", hwmon_temp, 1, 0x00, 0x3b),
+	[SENSOR_TEMP_MB]	= EC_SENSOR("Motherboard", hwmon_temp, 1, 0x00, 0x3c),
+	[SENSOR_TEMP_T_SENSOR]	= EC_SENSOR("T_Sensor", hwmon_temp, 1, 0x00, 0x3d),
+	[SENSOR_TEMP_VRM]	= EC_SENSOR("VRM", hwmon_temp, 1, 0x00, 0x3e),
+	[SENSOR_FAN_CPU_OPT]	= EC_SENSOR("CPU_Opt", hwmon_fan, 2, 0x00, 0xb0),
+	[SENSOR_FAN_VRM_HS]	= EC_SENSOR("VRM HS", hwmon_fan, 2, 0x00, 0xb2),
+	[SENSOR_FAN_CHIPSET]	= EC_SENSOR("Chipset", hwmon_fan, 2, 0x00, 0xb4),
+	[SENSOR_FAN_WATER_FLOW]	= EC_SENSOR("Water_Flow", hwmon_fan, 2, 0x00, 0xbc),
+	[SENSOR_CURR_CPU]	= EC_SENSOR("CPU", hwmon_curr, 1, 0x00, 0xf4),
+	[SENSOR_TEMP_WATER_IN]	= EC_SENSOR("Water_In", hwmon_temp, 1, 0x01, 0x00),
+	[SENSOR_TEMP_WATER_OUT]	= EC_SENSOR("Water_Out", hwmon_temp, 1, 0x01, 0x01),
+};
+
+struct asus_wmi_data {
+	const enum known_ec_sensor known_board_sensors[SENSOR_MAX + 1];
+};
+
+/* boards with EC support */
+static struct asus_wmi_data sensors_board_PW_X570_P = {
+	.known_board_sensors = {
+		SENSOR_TEMP_CHIPSET, SENSOR_TEMP_CPU, SENSOR_TEMP_MB, SENSOR_TEMP_VRM,
+		SENSOR_FAN_CHIPSET,
+		SENSOR_MAX
+	},
+};
+
+static struct asus_wmi_data sensors_board_PW_X570_A = {
+	.known_board_sensors = {
+		SENSOR_TEMP_CHIPSET, SENSOR_TEMP_CPU, SENSOR_TEMP_MB, SENSOR_TEMP_VRM,
+		SENSOR_FAN_CHIPSET,
+		SENSOR_CURR_CPU,
+		SENSOR_MAX
+	},
+};
+
+static struct asus_wmi_data sensors_board_R_C8H = {
+	.known_board_sensors = {
+		SENSOR_TEMP_CHIPSET, SENSOR_TEMP_CPU, SENSOR_TEMP_MB,
+		SENSOR_TEMP_T_SENSOR, SENSOR_TEMP_VRM,
+		SENSOR_TEMP_WATER_IN, SENSOR_TEMP_WATER_OUT,
+		SENSOR_FAN_CPU_OPT, SENSOR_FAN_CHIPSET, SENSOR_FAN_WATER_FLOW,
+		SENSOR_CURR_CPU,
+		SENSOR_MAX
+	},
+};
+
+/* Same as Hero but without chipset fan */
+static struct asus_wmi_data sensors_board_R_C8DH = {
+	.known_board_sensors = {
+		SENSOR_TEMP_CHIPSET, SENSOR_TEMP_CPU, SENSOR_TEMP_MB,
+		SENSOR_TEMP_T_SENSOR, SENSOR_TEMP_VRM,
+		SENSOR_TEMP_WATER_IN, SENSOR_TEMP_WATER_OUT,
+		SENSOR_FAN_CPU_OPT, SENSOR_FAN_WATER_FLOW,
+		SENSOR_CURR_CPU,
+		SENSOR_MAX
+	},
+};
+
+/* Same as Hero but without water */
+static struct asus_wmi_data sensors_board_R_C8F = {
+	.known_board_sensors = {
+		SENSOR_TEMP_CHIPSET, SENSOR_TEMP_CPU, SENSOR_TEMP_MB,
+		SENSOR_TEMP_T_SENSOR, SENSOR_TEMP_VRM,
+		SENSOR_FAN_CPU_OPT, SENSOR_FAN_CHIPSET,
+		SENSOR_CURR_CPU,
+		SENSOR_MAX
+	},
+};
+
+static struct asus_wmi_data sensors_board_RS_B550_E_G = {
+	.known_board_sensors = {
+		SENSOR_TEMP_CHIPSET, SENSOR_TEMP_CPU, SENSOR_TEMP_MB,
+		SENSOR_TEMP_T_SENSOR, SENSOR_TEMP_VRM,
+		SENSOR_FAN_CPU_OPT,
+		SENSOR_MAX
+	},
+};
+
+static struct asus_wmi_data sensors_board_RS_B550_I_G = {
+	.known_board_sensors = {
+		SENSOR_TEMP_CHIPSET, SENSOR_TEMP_CPU, SENSOR_TEMP_MB,
+		SENSOR_TEMP_T_SENSOR, SENSOR_TEMP_VRM,
+		SENSOR_FAN_VRM_HS,
+		SENSOR_CURR_CPU,
+		SENSOR_MAX
+	},
+};
+
+static struct asus_wmi_data sensors_board_RS_X570_E_G = {
+	.known_board_sensors = {
+		SENSOR_TEMP_CHIPSET, SENSOR_TEMP_CPU, SENSOR_TEMP_MB,
+		SENSOR_TEMP_T_SENSOR, SENSOR_TEMP_VRM,
+		SENSOR_FAN_CHIPSET,
+		SENSOR_CURR_CPU,
+		SENSOR_MAX
+	},
+};
+
+#define DMI_EXACT_MATCH_ASUS_BOARD_NAME(name, sensors) {			\
+	.matches = {								\
+		DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),	\
+		DMI_EXACT_MATCH(DMI_BOARD_NAME, name),				\
+	},									\
+	.driver_data = sensors,							\
+}
+
+static const struct dmi_system_id asus_wmi_ec_dmi_table[] = {
+	DMI_EXACT_MATCH_ASUS_BOARD_NAME("PRIME X570-PRO", &sensors_board_PW_X570_P),
+	DMI_EXACT_MATCH_ASUS_BOARD_NAME("Pro WS X570-ACE", &sensors_board_PW_X570_A),
+	DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG CROSSHAIR VIII DARK HERO", &sensors_board_R_C8DH),
+	DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG CROSSHAIR VIII FORMULA", &sensors_board_R_C8F),
+	DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG CROSSHAIR VIII HERO", &sensors_board_R_C8H),
+	DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX B550-E GAMING", &sensors_board_RS_B550_E_G),
+	DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX B550-I GAMING", &sensors_board_RS_B550_I_G),
+	DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG STRIX X570-E GAMING", &sensors_board_RS_X570_E_G),
+	{}
+};
+MODULE_DEVICE_TABLE(dmi, asus_wmi_ec_dmi_table);
+
+struct ec_sensor {
+	enum known_ec_sensor info_index;
+	long cached_value;
+};
+
+/**
+ * struct asus_wmi_ec_info - sensor info.
+ * @sensors: list of sensors.
+ * @read_arg: UTF-16LE string to pass to BRxx() WMI function.
+ * @read_buffer: decoded output from WMI result.
+ * @nr_sensors: number of board EC sensors.
+ * @nr_registers: number of EC registers to read (sensor might span more than 1 register).
+ * @last_updated: in jiffies.
+ */
+struct asus_wmi_ec_info {
+	struct ec_sensor sensors[SENSOR_MAX];
+	char read_arg[(ASUSWMI_BREC_REGISTERS_MAX * 4 + 1) * 2];
+	u8 read_buffer[ASUSWMI_BREC_REGISTERS_MAX];
+	unsigned int nr_sensors;
+	unsigned int nr_registers;
+	unsigned long last_updated;
+};
+
+struct asus_wmi_sensors {
+	struct asus_wmi_ec_info ec;
+	/* lock access to internal cache */
+	struct mutex lock;
+};
+
+static int asus_wmi_ec_fill_board_sensors(struct asus_wmi_ec_info *ec,
+					  const enum known_ec_sensor *bsi)
+{
+	struct ec_sensor *s = ec->sensors;
+	int i;
+
+	ec->nr_sensors = 0;
+	ec->nr_registers = 0;
+
+	for (i = 0; bsi[i] != SENSOR_MAX; i++) {
+		s[i].info_index = bsi[i];
+		ec->nr_sensors++;
+		ec->nr_registers += known_ec_sensors[bsi[i]].addr.size;
+	}
+
+	return 0;
+}
+
+/*
+ * The next four functions convert to or from BRxx string argument format.
+ * The format of the string is as follows:
+ * - The string consists of two-byte UTF-16LE characters.
+ * - The value of the very first byte in the string is equal to the total
+ *   length of the next string in bytes, thus excluding the first two-byte
+ *   character.
+ * - The rest of the string encodes the pairs of (bank, index) pairs, where
+ *   both values are byte-long (0x00 to 0xFF).
+ * - Numbers are encoded as UTF-16LE hex values.
+ */
+static int asus_wmi_ec_decode_reply_buffer(const u8 *in, u32 length, u8 *out)
+{
+	char buffer[ASUSWMI_MAX_BUF_LEN * 2];
+	u32 len = min_t(u32, get_unaligned_le16(in), length - 2);
+
+	utf16s_to_utf8s((wchar_t *)(in + 2), len / 2, UTF16_LITTLE_ENDIAN, buffer, sizeof(buffer));
+
+	return hex2bin(out, buffer, len / 4);
+}
+
+static void asus_wmi_ec_encode_registers(const u8 *in, u32 len, char *out)
+{
+	char buffer[ASUSWMI_MAX_BUF_LEN * 2];
+
+	bin2hex(buffer, in, len);
+
+	utf8s_to_utf16s(buffer, len * 2, UTF16_LITTLE_ENDIAN, (wchar_t *)(out + 2), len * 2);
+
+	put_unaligned_le16(len * 4, out);
+}
+
+static void asus_wmi_ec_make_block_read_query(struct asus_wmi_ec_info *ec)
+{
+	u8 registers[ASUSWMI_BREC_REGISTERS_MAX * 2];
+	const struct ec_sensor_info *si;
+	int i, j, offset;
+
+	offset = 0;
+	for (i = 0; i < ec->nr_sensors; i++) {
+		si = &known_ec_sensors[ec->sensors[i].info_index];
+		for (j = 0; j < si->addr.size; j++) {
+			registers[offset++] = si->addr.bank;
+			registers[offset++] = si->addr.index + j;
+		}
+	}
+
+	asus_wmi_ec_encode_registers(registers, offset, ec->read_arg);
+}
+
+static int asus_wmi_ec_block_read(u32 method_id, char *query, u8 *out)
+{
+	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+	struct acpi_buffer input;
+	union acpi_object *obj;
+	acpi_status status;
+	int ret;
+
+	/* The first byte of the BRxx() argument string has to be the string size. */
+	input.length = query[0] + 2;
+	input.pointer = query;
+	status = wmi_evaluate_method(ASUSWMI_MONITORING_GUID, 0, method_id, &input, &output);
+	if (ACPI_FAILURE(status))
+		return -EIO;
+
+	obj = output.pointer;
+	if (!obj)
+		return -EIO;
+
+	if (obj->type != ACPI_TYPE_BUFFER || obj->buffer.length < 2) {
+		ret = -EIO;
+		goto out_free_obj;
+	}
+
+	ret = asus_wmi_ec_decode_reply_buffer(obj->buffer.pointer, obj->buffer.length, out);
+
+out_free_obj:
+	ACPI_FREE(obj);
+	return ret;
+}
+
+static inline long get_sensor_value(const struct ec_sensor_info *si, u8 *data)
+{
+	switch (si->addr.size) {
+	case 1:
+		return *data;
+	case 2:
+		return get_unaligned_be16(data);
+	case 4:
+		return get_unaligned_be32(data);
+	default:
+		return 0;
+	}
+}
+
+static void asus_wmi_ec_update_ec_sensors(struct asus_wmi_ec_info *ec)
+{
+	const struct ec_sensor_info *si;
+	struct ec_sensor *s;
+	u8 i_sensor;
+	u8 *data;
+
+	data = ec->read_buffer;
+	for (i_sensor = 0; i_sensor < ec->nr_sensors; i_sensor++) {
+		s = &ec->sensors[i_sensor];
+		si = &known_ec_sensors[s->info_index];
+		s->cached_value = get_sensor_value(si, data);
+		data += si->addr.size;
+	}
+}
+
+static long asus_wmi_ec_scale_sensor_value(long value, int data_type)
+{
+	switch (data_type) {
+	case hwmon_curr:
+	case hwmon_temp:
+	case hwmon_in:
+		return value * MILLI;
+	default:
+		return value;
+	}
+}
+
+static int asus_wmi_ec_find_sensor_index(const struct asus_wmi_ec_info *ec,
+					 enum hwmon_sensor_types type, int channel)
+{
+	int i;
+
+	for (i = 0; i < ec->nr_sensors; i++) {
+		if (known_ec_sensors[ec->sensors[i].info_index].type == type) {
+			if (channel == 0)
+				return i;
+
+			channel--;
+		}
+	}
+	return -EINVAL;
+}
+
+static int asus_wmi_ec_get_cached_value_or_update(struct asus_wmi_sensors *sensor_data,
+						  int sensor_index,
+						  long *value)
+{
+	struct asus_wmi_ec_info *ec = &sensor_data->ec;
+	int ret = 0;
+
+	mutex_lock(&sensor_data->lock);
+
+	if (time_after(jiffies, ec->last_updated + HZ)) {
+		ret = asus_wmi_ec_block_read(ASUSWMI_METHODID_BLOCK_READ_EC,
+					     ec->read_arg, ec->read_buffer);
+		if (ret)
+			goto unlock;
+
+		asus_wmi_ec_update_ec_sensors(ec);
+		ec->last_updated = jiffies;
+	}
+
+	*value = ec->sensors[sensor_index].cached_value;
+
+unlock:
+	mutex_unlock(&sensor_data->lock);
+
+	return ret;
+}
+
+/* Now follow the functions that implement the hwmon interface */
+
+static int asus_wmi_ec_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
+				  u32 attr, int channel, long *val)
+{
+	struct asus_wmi_sensors *sensor_data = dev_get_drvdata(dev);
+	struct asus_wmi_ec_info *ec = &sensor_data->ec;
+	int ret, sidx, info_index;
+	long value = 0;
+
+	sidx = asus_wmi_ec_find_sensor_index(ec, type, channel);
+	if (sidx < 0)
+		return sidx;
+
+	ret = asus_wmi_ec_get_cached_value_or_update(sensor_data, sidx, &value);
+	if (ret)
+		return ret;
+
+	info_index = ec->sensors[sidx].info_index;
+	*val = asus_wmi_ec_scale_sensor_value(value, known_ec_sensors[info_index].type);
+
+	return ret;
+}
+
+static int asus_wmi_ec_hwmon_read_string(struct device *dev,
+					 enum hwmon_sensor_types type, u32 attr,
+					 int channel, const char **str)
+{
+	struct asus_wmi_sensors *sensor_data = dev_get_drvdata(dev);
+	struct asus_wmi_ec_info *ec = &sensor_data->ec;
+	int sensor_index;
+
+	sensor_index = asus_wmi_ec_find_sensor_index(ec, type, channel);
+	*str = known_ec_sensors[ec->sensors[sensor_index].info_index].label;
+
+	return 0;
+}
+
+static umode_t asus_wmi_ec_hwmon_is_visible(const void *drvdata,
+					    enum hwmon_sensor_types type, u32 attr,
+					    int channel)
+{
+	const struct asus_wmi_sensors *sensor_data = drvdata;
+	const struct asus_wmi_ec_info *ec = &sensor_data->ec;
+	int index;
+
+	index = asus_wmi_ec_find_sensor_index(ec, type, channel);
+
+	return index < 0 ? 0 : 0444;
+}
+
+static int asus_wmi_hwmon_add_chan_info(struct hwmon_channel_info *asus_wmi_hwmon_chan,
+					struct device *dev, int num,
+					enum hwmon_sensor_types type, u32 config)
+{
+	u32 *cfg;
+
+	cfg = devm_kcalloc(dev, num + 1, sizeof(*cfg), GFP_KERNEL);
+	if (!cfg)
+		return -ENOMEM;
+
+	asus_wmi_hwmon_chan->type = type;
+	asus_wmi_hwmon_chan->config = cfg;
+	memset32(cfg, config, num);
+
+	return 0;
+}
+
+static const struct hwmon_ops asus_wmi_ec_hwmon_ops = {
+	.is_visible = asus_wmi_ec_hwmon_is_visible,
+	.read = asus_wmi_ec_hwmon_read,
+	.read_string = asus_wmi_ec_hwmon_read_string,
+};
+
+static struct hwmon_chip_info asus_wmi_ec_chip_info = {
+	.ops = &asus_wmi_ec_hwmon_ops,
+};
+
+static int asus_wmi_ec_configure_sensor_setup(struct device *dev,
+					      const enum known_ec_sensor *bsi)
+{
+	struct asus_wmi_sensors *sensor_data = dev_get_drvdata(dev);
+	struct asus_wmi_ec_info *ec = &sensor_data->ec;
+	struct hwmon_channel_info *asus_wmi_hwmon_chan;
+	const struct hwmon_channel_info **asus_wmi_ci;
+	int nr_count[hwmon_max] = {}, nr_types = 0;
+	const struct hwmon_chip_info *chip_info;
+	const struct ec_sensor_info *si;
+	enum hwmon_sensor_types type;
+	struct device *hwdev;
+	int i, ret;
+
+	ret = asus_wmi_ec_fill_board_sensors(ec, bsi);
+	if (ret)
+		return ret;
+
+	if (!sensor_data->ec.nr_sensors)
+		return -ENODEV;
+
+	for (i = 0; i < ec->nr_sensors; i++) {
+		si = &known_ec_sensors[ec->sensors[i].info_index];
+		if (!nr_count[si->type])
+			nr_types++;
+		nr_count[si->type]++;
+	}
+
+	if (nr_count[hwmon_temp]) {
+		nr_count[hwmon_chip]++;
+		nr_types++;
+	}
+
+	/*
+	 * If we can get values for all the registers in a single query,
+	 * the query will not change from call to call.
+	 */
+	asus_wmi_ec_make_block_read_query(ec);
+
+	asus_wmi_hwmon_chan = devm_kcalloc(dev, nr_types, sizeof(*asus_wmi_hwmon_chan),
+					   GFP_KERNEL);
+	if (!asus_wmi_hwmon_chan)
+		return -ENOMEM;
+
+	asus_wmi_ci = devm_kcalloc(dev, nr_types + 1, sizeof(*asus_wmi_ci), GFP_KERNEL);
+	if (!asus_wmi_ci)
+		return -ENOMEM;
+
+	asus_wmi_ec_chip_info.info = asus_wmi_ci;
+	chip_info = &asus_wmi_ec_chip_info;
+
+	for (type = 0; type < hwmon_max; type++) {
+		if (!nr_count[type])
+			continue;
+
+		ret = asus_wmi_hwmon_add_chan_info(asus_wmi_hwmon_chan, dev,
+						   nr_count[type], type,
+						   hwmon_attributes[type]);
+		if (ret)
+			return ret;
+
+		*asus_wmi_ci++ = asus_wmi_hwmon_chan++;
+	}
+
+	dev_dbg(dev, "board has %d EC sensors that span %d registers",
+		ec->nr_sensors, ec->nr_registers);
+
+	hwdev = devm_hwmon_device_register_with_info(dev, "asus_wmi_ec_sensors",
+						     sensor_data, chip_info, NULL);
+
+	return PTR_ERR_OR_ZERO(hwdev);
+}
+
+static int asus_wmi_probe(struct wmi_device *wdev, const void *context)
+{
+	struct asus_wmi_sensors *sensor_data;
+	struct asus_wmi_data *board_sensors;
+	const struct dmi_system_id *dmi_id;
+	const enum known_ec_sensor *bsi;
+	struct device *dev = &wdev->dev;
+
+	dmi_id = dmi_first_match(asus_wmi_ec_dmi_table);
+	if (!dmi_id)
+		return -ENODEV;
+
+	board_sensors = dmi_id->driver_data;
+	bsi = board_sensors->known_board_sensors;
+
+	sensor_data = devm_kzalloc(dev, sizeof(*sensor_data), GFP_KERNEL);
+	if (!sensor_data)
+		return -ENOMEM;
+
+	mutex_init(&sensor_data->lock);
+
+	dev_set_drvdata(dev, sensor_data);
+
+	return asus_wmi_ec_configure_sensor_setup(dev, bsi);
+}
+
+static const struct wmi_device_id asus_ec_wmi_id_table[] = {
+	{ ASUSWMI_MONITORING_GUID, NULL },
+	{ }
+};
+
+static struct wmi_driver asus_sensors_wmi_driver = {
+	.driver = {
+		.name = "asus_wmi_ec_sensors",
+	},
+	.id_table = asus_ec_wmi_id_table,
+	.probe = asus_wmi_probe,
+};
+module_wmi_driver(asus_sensors_wmi_driver);
+
+MODULE_AUTHOR("Ed Brindley <kernel@maidavale.org>");
+MODULE_AUTHOR("Eugene Shalygin <eugene.shalygin@gmail.com>");
+MODULE_DESCRIPTION("Asus WMI Sensors Driver");
+MODULE_LICENSE("GPL");
