MAINTAINERS | 7 +
drivers/hwmon/Kconfig | 11 +
drivers/hwmon/Makefile | 1 +
drivers/hwmon/asus_wmi_ec_sensors.c | 648 ++++++++++++++++++++
5 files changed, 702 insertions(+)
create mode 100644 Documentation/hwmon/asus_wmi_ec_sensors.rst
create mode 100644 drivers/hwmon/asus_wmi_ec_sensors.c
diff --git a/Documentation/hwmon/asus_wmi_ec_sensors.rst b/Documentation/hwmon/asus_wmi_ec_sensors.rst
new file mode 100644
index 000000000000..e4f603804a82
--- /dev/null
+++ b/Documentation/hwmon/asus_wmi_ec_sensors.rst
@@ -0,0 +1,35 @@
+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 X570-E GAMING.
+
+Authors:
+ Eugene Shalygin <eugene.shalygin@xxxxxxxxx>
+
+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/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@xxxxxxxxx>
+M: Denis Pauk <pauk.denis@xxxxxxxxx>
+L: linux-hwmon@xxxxxxxxxxxxxxx
+S: Maintained
+F: drivers/hwmon/asus_wmi_ec_sensors.c
+
ASUS WIRELESS RADIO CONTROL DRIVER
M: João Paulo Rechi Vita <jprvita@xxxxxxxxx>
L: platform-driver-x86@xxxxxxxxxxxxxxx
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 7fde4c6e1e7f..430a438432a0 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -2215,6 +2215,17 @@ 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"
+ 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..f9d8a0be7bea
--- /dev/null
+++ b/drivers/hwmon/asus_wmi_ec_sensors.c
@@ -0,0 +1,648 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * HWMON driver for ASUS B550/X570 motherboards that publish sensor
+ * values via the embedded controller registers.
+ *
+ * Copyright (C) 2021 Eugene Shalygin <eugene.shalygin@xxxxxxxxx>
+ * Copyright (C) 2018-2019 Ed Brindley <kernel@xxxxxxxxxxxxx>
+ *
+ * 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 <asm/unaligned.h>
+#include <linux/acpi.h>
+#include <linux/dmi.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.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>
+
+#define ASUSWMI_MONITORING_GUID "466747A0-70EC-11DE-8A39-0800200C9A66"
+#define ASUSWMI_METHODID_BLOCK_READ_EC 0x42524543 /* BREC */
+
+#define ASUS_WMI_BLOCK_READ_REGISTERS_MAX 0x10 /* from the ASUS DSDT source */
+/* from the ASUS_WMI_BLOCK_READ_REGISTERS_MAX value */
+#define ASUS_WMI_MAX_BUF_LEN 0x80
+#define MAX_SENSOR_LABEL_LENGTH 0x10
+
+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 {
+ char label[MAX_SENSOR_LABEL_LENGTH];
+ enum hwmon_sensor_types type;
+ struct asus_wmi_ec_sensor_address addr;
+};
+
+#define EC_SENSOR(sensor_label, sensor_type, size, bank, index) \
+ { .label = sensor_label,\
+ .type = sensor_type, \
+ .addr = MAKE_SENSOR_ADDRESS(size, bank, index) \
+ }
+
+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_WATER_FLOW,
+ SENSOR_CURR_CPU,
+ SENSOR_TEMP_WATER_IN,
+ SENSOR_TEMP_WATER_OUT,
+ SENSOR_MAX
+};
+
+/*
+ * All the 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_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_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
+ },
+};
+
+static struct asus_wmi_data *board_sensors;
+
+static int __init asus_wmi_dmi_matched(const struct dmi_system_id *d)
+{
+ board_sensors = d->driver_data;
+ return 0;
+}
+
+#define DMI_EXACT_MATCH_ASUS_BOARD_NAME(name, sensors) \
+ { \
+ .callback = asus_wmi_dmi_matched, \
+ .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 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;
+ u32 cached_value;
+};
+
+/**
+ * struct asus_wmi_ec_info - sensor info.
+ * @sensors: list of sensors.
+ * @read_arg: UTF-16 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[((ASUS_WMI_BLOCK_READ_REGISTERS_MAX * 4) + 1) * 2];
+ u8 read_buffer[ASUS_WMI_BLOCK_READ_REGISTERS_MAX];
+ unsigned int nr_sensors;
+ unsigned int nr_registers;
+ unsigned long last_updated;
+};
+
+struct asus_wmi_sensors {
+ /* lock access to instrnal cache */
+ int status;
+ u8 i_sensor, read_reg_ct;
+
+ asus_wmi_ec_make_block_read_query(ec);
+ status = asus_wmi_ec_block_read(ASUSWMI_METHODID_BLOCK_READ_EC,
+ ec->read_arg,
+ ec->read_buffer);
+ if (status)
+ return status;
+
+ read_reg_ct = 0;
+ for (i_sensor = 0; i_sensor < ec->nr_sensors; i_sensor++) {
+ s = &ec->sensors[i_sensor];
+ si = &known_ec_sensors[s->info_index];
+
+ switch (si->addr.size) {
+ case 1:
+ s->cached_value = ec->read_buffer[read_reg_ct];
+ break;
+ case 2:
+ s->cached_value = get_unaligned_be16(&ec->read_buffer[read_reg_ct]);
+ break;
+ case 4:
+ s->cached_value = get_unaligned_be32(&ec->read_buffer[read_reg_ct]);
+ break;
+ default:
+ s->cached_value = 0;
+ }
+ read_reg_ct += si->addr.size;
+ }
+ return 0;
+}
+
+static int asus_wmi_ec_scale_sensor_value(u32 value, int data_type)
+{
+ switch (data_type) {
+ case hwmon_curr:
+ case hwmon_temp:
+ case hwmon_in:
+ return value * KILO;
+ 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(int sensor_index,
+ struct asus_wmi_sensors *state,
+ u32 *value)
+{
+ int ret;
+
+ if (time_after(jiffies, state->ec.last_updated + HZ)) {
+ ret = asus_wmi_ec_update_ec_sensors(&state->ec);
+ if (ret)
+ return ret;
+
+ state->ec.last_updated = jiffies;
+ }
+
+ *value = state->ec.sensors[sensor_index].cached_value;
+ return 0;
+}
+
+/*
+ * 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);
+ int ret, sidx, info_index;
+ u32 value = 0;
+
+ sidx = asus_wmi_ec_find_sensor_index(&sensor_data->ec, type, channel);
+ if (sidx < 0)
+ return sidx;
+
+ mutex_lock(&sensor_data->lock);
+ ret = asus_wmi_ec_get_cached_value_or_update(sidx, sensor_data, &value);
+ mutex_unlock(&sensor_data->lock);
+ if (ret)
+ return ret;
+
+ info_index = sensor_data->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);
+ int sensor_index;
+
+ sensor_index = asus_wmi_ec_find_sensor_index(&sensor_data->ec, type, channel);
+ *str = known_ec_sensors[sensor_data->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)
+{
+ int index;
+ const struct asus_wmi_sensors *sensor_data = drvdata;
+
+ index = asus_wmi_ec_find_sensor_index(&sensor_data->ec, type, channel);
+
+ return index == 0xff ? 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,
+ struct asus_wmi_sensors *sensor_data)
+{
+ struct hwmon_channel_info *asus_wmi_hwmon_chan;
+ const struct hwmon_channel_info **ptr_asus_wmi_ci;
+ int nr_count[hwmon_max] = { 0 }, 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(&sensor_data->ec);
+ if (ret)
+ return ret;
+
+ if (!sensor_data->ec.nr_sensors)
+ return -ENODEV;
+
+ for (i = 0; i < sensor_data->ec.nr_sensors; i++) {
+ si = &known_ec_sensors[sensor_data->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++;
+ }
+
+ asus_wmi_hwmon_chan = devm_kcalloc(dev, nr_types,
+ sizeof(*asus_wmi_hwmon_chan),
+ GFP_KERNEL);
+ if (!asus_wmi_hwmon_chan)
+ return -ENOMEM;
+
+ ptr_asus_wmi_ci = devm_kcalloc(dev, nr_types + 1,
+ sizeof(*ptr_asus_wmi_ci), GFP_KERNEL);
+ if (!ptr_asus_wmi_ci)
+ return -ENOMEM;
+
+ asus_wmi_ec_chip_info.info = ptr_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;
+
+ *ptr_asus_wmi_ci++ = asus_wmi_hwmon_chan++;
+ }
+
+ dev_dbg(dev, "board has %d EC sensors that span %d registers",
+ sensor_data->ec.nr_sensors,
+ sensor_data->ec.nr_registers);
+
+ hwdev = devm_hwmon_device_register_with_info(dev, KBUILD_MODNAME,
+ 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 device *dev = &wdev->dev;
+
+ if (!dmi_check_system(asus_wmi_ec_dmi_table))
+ return -ENODEV;
+
+ sensor_data = devm_kzalloc(dev, sizeof(struct asus_wmi_sensors),
+ GFP_KERNEL);
+ if (!sensor_data)
+ return -ENOMEM;
+
+ mutex_init(&sensor_data->lock);
+
+ dev_set_drvdata(dev, sensor_data);
+
+ /* ec init */
+ return asus_wmi_ec_configure_sensor_setup(dev,
+ sensor_data);
+}
+
+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 = KBUILD_MODNAME,
+ },
+ .id_table = asus_ec_wmi_id_table,
+ .probe = asus_wmi_probe,
+};
+module_wmi_driver(asus_sensors_wmi_driver);
+
+MODULE_AUTHOR("Ed Brindley <kernel@xxxxxxxxxxxxx>");
+MODULE_AUTHOR("Eugene Shalygin <eugene.shalygin@xxxxxxxxx>");
+MODULE_DESCRIPTION("Asus WMI Sensors Driver");
+MODULE_LICENSE("GPL");
