--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Lenovo Other Mode WMI interface driver.
+ *
+ * This driver uses the fw_attributes class to expose the various WMI functions
+ * provided by the "Other Mode" WMI interface. This enables CPU and GPU power
+ * limit as well as various other attributes for devices that fall under the
+ * "Gaming Series" of Lenovo laptop devices. Each attribute exposed by the
+ * "Other Mode" interface has a corresponding Capability Data struct that
+ * allows the driver to probe details about the attribute such as if it is
+ * supported by the hardware, the default_value, max_value, min_value, and step
+ * increment.
+ *
+ * These attributes typically don't fit anywhere else in the sysfs and are set
+ * in Windows using one of Lenovo's multiple user applications.
+ *
+ * Copyright (C) 2025 Derek J. Clark <derekjohn.clark@gmail.com>
+ */
+
+#include <linux/acpi.h>
+#include <linux/bitfield.h>
+#include <linux/cleanup.h>
+#include <linux/component.h>
+#include <linux/container_of.h>
+#include <linux/device.h>
+#include <linux/export.h>
+#include <linux/gfp_types.h>
+#include <linux/idr.h>
+#include <linux/kdev_t.h>
+#include <linux/kobject.h>
+#include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/platform_profile.h>
+#include <linux/types.h>
+#include <linux/wmi.h>
+
+#include "wmi-capdata01.h"
+#include "wmi-events.h"
+#include "wmi-gamezone.h"
+#include "wmi-helpers.h"
+#include "wmi-other.h"
+#include "../firmware_attributes_class.h"
+
+#define LENOVO_OTHER_MODE_GUID "DC2A8805-3A8C-41BA-A6F7-092E0089CD3B"
+
+#define LWMI_DEVICE_ID_CPU 0x01
+
+#define LWMI_FEATURE_ID_CPU_SPPT 0x01
+#define LWMI_FEATURE_ID_CPU_SPL 0x02
+#define LWMI_FEATURE_ID_CPU_FPPT 0x03
+
+#define LWMI_TYPE_ID_NONE 0x00
+
+#define LWMI_FEATURE_VALUE_GET 17
+#define LWMI_FEATURE_VALUE_SET 18
+
+#define LWMI_ATTR_DEV_ID_MASK GENMASK(31, 24)
+#define LWMI_ATTR_FEAT_ID_MASK GENMASK(23, 16)
+#define LWMI_ATTR_MODE_ID_MASK GENMASK(15, 8)
+#define LWMI_ATTR_TYPE_ID_MASK GENMASK(7, 0)
+
+#define LWMI_OM_FW_ATTR_BASE_PATH "lenovo-wmi-other"
+
+static BLOCKING_NOTIFIER_HEAD(om_chain_head);
+static DEFINE_IDA(lwmi_om_ida);
+
+enum attribute_property {
+ DEFAULT_VAL,
+ MAX_VAL,
+ MIN_VAL,
+ STEP_VAL,
+ SUPPORTED,
+};
+
+struct lwmi_om_priv {
+ struct component_master_ops *ops;
+ struct cd01_list *cd01_list; /* only valid after capdata01 bind */
+ struct device *fw_attr_dev;
+ struct kset *fw_attr_kset;
+ struct notifier_block nb;
+ struct wmi_device *wdev;
+ int ida_id;
+};
+
+struct tunable_attr_01 {
+ struct capdata01 *capdata;
+ struct device *dev;
+ u32 feature_id;
+ u32 device_id;
+ u32 type_id;
+};
+
+static struct tunable_attr_01 ppt_pl1_spl = {
+ .device_id = LWMI_DEVICE_ID_CPU,
+ .feature_id = LWMI_FEATURE_ID_CPU_SPL,
+ .type_id = LWMI_TYPE_ID_NONE,
+};
+
+static struct tunable_attr_01 ppt_pl2_sppt = {
+ .device_id = LWMI_DEVICE_ID_CPU,
+ .feature_id = LWMI_FEATURE_ID_CPU_SPPT,
+ .type_id = LWMI_TYPE_ID_NONE,
+};
+
+static struct tunable_attr_01 ppt_pl3_fppt = {
+ .device_id = LWMI_DEVICE_ID_CPU,
+ .feature_id = LWMI_FEATURE_ID_CPU_FPPT,
+ .type_id = LWMI_TYPE_ID_NONE,
+};
+
+struct capdata01_attr_group {
+ const struct attribute_group *attr_group;
+ struct tunable_attr_01 *tunable_attr;
+};
+
+/**
+ * lwmi_om_register_notifier() - Add a notifier to the blocking notifier chain
+ * @nb: The notifier_block struct to register
+ *
+ * Call blocking_notifier_chain_register to register the notifier block to the
+ * lenovo-wmi-other driver notifier chain.
+ *
+ * Return: 0 on success, %-EEXIST on error.
+ */
+int lwmi_om_register_notifier(struct notifier_block *nb)
+{
+ return blocking_notifier_chain_register(&om_chain_head, nb);
+}
+EXPORT_SYMBOL_NS_GPL(lwmi_om_register_notifier, "LENOVO_WMI_OTHER");
+
+/**
+ * lwmi_om_unregister_notifier() - Remove a notifier from the blocking notifier
+ * chain.
+ * @nb: The notifier_block struct to register
+ *
+ * Call blocking_notifier_chain_unregister to unregister the notifier block from the
+ * lenovo-wmi-other driver notifier chain.
+ *
+ * Return: 0 on success, %-ENOENT on error.
+ */
+int lwmi_om_unregister_notifier(struct notifier_block *nb)
+{
+ return blocking_notifier_chain_unregister(&om_chain_head, nb);
+}
+EXPORT_SYMBOL_NS_GPL(lwmi_om_unregister_notifier, "LENOVO_WMI_OTHER");
+
+/**
+ * devm_lwmi_om_unregister_notifier() - Remove a notifier from the blocking
+ * notifier chain.
+ * @data: Void pointer to the notifier_block struct to register.
+ *
+ * Call lwmi_om_unregister_notifier to unregister the notifier block from the
+ * lenovo-wmi-other driver notifier chain.
+ *
+ * Return: 0 on success, %-ENOENT on error.
+ */
+static void devm_lwmi_om_unregister_notifier(void *data)
+{
+ struct notifier_block *nb = data;
+
+ lwmi_om_unregister_notifier(nb);
+}
+
+/**
+ * devm_lwmi_om_register_notifier() - Add a notifier to the blocking notifier
+ * chain.
+ * @dev: The parent device of the notifier_block struct.
+ * @nb: The notifier_block struct to register
+ *
+ * Call lwmi_om_register_notifier to register the notifier block to the
+ * lenovo-wmi-other driver notifier chain. Then add devm_lwmi_om_unregister_notifier
+ * as a device managed action to automatically unregister the notifier block
+ * upon parent device removal.
+ *
+ * Return: 0 on success, or an error code.
+ */
+int devm_lwmi_om_register_notifier(struct device *dev,
+ struct notifier_block *nb)
+{
+ int ret;
+
+ ret = lwmi_om_register_notifier(nb);
+ if (ret < 0)
+ return ret;
+
+ return devm_add_action_or_reset(dev, devm_lwmi_om_unregister_notifier,
+ nb);
+}
+EXPORT_SYMBOL_NS_GPL(devm_lwmi_om_register_notifier, "LENOVO_WMI_OTHER");
+
+/**
+ * lwmi_om_notifier_call() - Call functions for the notifier call chain.
+ * @mode: Pointer to a thermal mode enum to retrieve the data from.
+ *
+ * Call blocking_notifier_call_chain to retrieve the thermal mode from the
+ * lenovo-wmi-gamezone driver.
+ *
+ * Return: 0 on success, or an error code.
+ */
+static int lwmi_om_notifier_call(enum thermal_mode *mode)
+{
+ int ret;
+
+ ret = blocking_notifier_call_chain(&om_chain_head,
+ LWMI_GZ_GET_THERMAL_MODE, &mode);
+ if ((ret & ~NOTIFY_STOP_MASK) != NOTIFY_OK)
+ return -EINVAL;
+
+ return 0;
+}
+
+/* Attribute Methods */
+
+/**
+ * int_type_show() - Emit the data type for an integer attribute
+ * @kobj: Pointer to the driver object.
+ * @kattr: Pointer to the attribute calling this function.
+ * @buf: The buffer to write to.
+ *
+ * Return: Number of characters written to buf.
+ */
+static ssize_t int_type_show(struct kobject *kobj, struct kobj_attribute *kattr,
+ char *buf)
+{
+ return sysfs_emit(buf, "integer\n");
+}
+
+/**
+ * attr_capdata01_show() - Get the value of the specified attribute property
+ *
+ * @kobj: Pointer to the driver object.
+ * @kattr: Pointer to the attribute calling this function.
+ * @buf: The buffer to write to.
+ * @tunable_attr: The attribute to be read.
+ * @prop: The property of this attribute to be read.
+ *
+ * Retrieves the given property from the capability data 01 struct for the
+ * specified attribute's "custom" thermal mode. This function is intended
+ * to be generic so it can be called from any integer attributes "_show"
+ * function.
+ *
+ * If the WMI is success the sysfs attribute is notified.
+ *
+ * Return: Either number of characters written to buf, or an error code.
+ */
+static ssize_t attr_capdata01_show(struct kobject *kobj,
+ struct kobj_attribute *kattr, char *buf,
+ struct tunable_attr_01 *tunable_attr,
+ enum attribute_property prop)
+{
+ struct lwmi_om_priv *priv = dev_get_drvdata(tunable_attr->dev);
+ struct capdata01 capdata;
+ u32 attribute_id;
+ int value, ret;
+
+ attribute_id =
+ FIELD_PREP(LWMI_ATTR_DEV_ID_MASK, tunable_attr->device_id) |
+ FIELD_PREP(LWMI_ATTR_FEAT_ID_MASK, tunable_attr->feature_id) |
+ FIELD_PREP(LWMI_ATTR_MODE_ID_MASK,
+ LWMI_GZ_THERMAL_MODE_CUSTOM) |
+ FIELD_PREP(LWMI_ATTR_TYPE_ID_MASK, tunable_attr->type_id);
+
+ ret = lwmi_cd01_get_data(priv->cd01_list, attribute_id, &capdata);
+ if (ret)
+ return ret;
+
+ switch (prop) {
+ case DEFAULT_VAL:
+ value = capdata.default_value;
+ break;
+ case MAX_VAL:
+ value = capdata.max_value;
+ break;
+ case MIN_VAL:
+ value = capdata.min_value;
+ break;
+ case STEP_VAL:
+ value = capdata.step;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return sysfs_emit(buf, "%d\n", value);
+}
+
+/**
+ * attr_current_value_store() - Set the current value of the given attribute
+ * @kobj: Pointer to the driver object.
+ * @kattr: Pointer to the attribute calling this function.
+ * @buf: The buffer to read from, this is parsed to `int` type.
+ * @count: Required by sysfs attribute macros, pass in from the callee attr.
+ * @tunable_attr: The attribute to be stored.
+ *
+ * Sets the value of the given attribute when operating under the "custom"
+ * smartfan profile. The current smartfan profile is retrieved from the
+ * lenovo-wmi-gamezone driver and error is returned if the result is not
+ * "custom". This function is intended to be generic so it can be called from
+ * any integer attribute's "_store" function. The integer to be sent to the WMI
+ * method is range checked and an error code is returned if out of range.
+ *
+ * If the value is valid and WMI is success, then the sysfs attribute is
+ * notified.
+ *
+ * Return: Either count, or an error code.
+ */
+static ssize_t attr_current_value_store(struct kobject *kobj,
+ struct kobj_attribute *kattr,
+ const char *buf, size_t count,
+ struct tunable_attr_01 *tunable_attr)
+{
+ struct lwmi_om_priv *priv = dev_get_drvdata(tunable_attr->dev);
+ struct wmi_method_args_32 args;
+ struct capdata01 capdata;
+ enum thermal_mode mode;
+ u32 attribute_id;
+ u32 value;
+ int ret;
+
+ ret = lwmi_om_notifier_call(&mode);
+ if (ret)
+ return ret;
+
+ if (mode != LWMI_GZ_THERMAL_MODE_CUSTOM)
+ return -EBUSY;
+
+ attribute_id =
+ FIELD_PREP(LWMI_ATTR_DEV_ID_MASK, tunable_attr->device_id) |
+ FIELD_PREP(LWMI_ATTR_FEAT_ID_MASK, tunable_attr->feature_id) |
+ FIELD_PREP(LWMI_ATTR_MODE_ID_MASK, mode) |
+ FIELD_PREP(LWMI_ATTR_TYPE_ID_MASK, tunable_attr->type_id);
+
+ ret = lwmi_cd01_get_data(priv->cd01_list, attribute_id, &capdata);
+ if (ret)
+ return ret;
+
+ ret = kstrtouint(buf, 10, &value);
+ if (ret)
+ return ret;
+
+ if (value < capdata.min_value || value > capdata.max_value)
+ return -EINVAL;
+
+ args.arg0 = attribute_id;
+ args.arg1 = value;
+
+ ret = lwmi_dev_evaluate_int(priv->wdev, 0x0, LWMI_FEATURE_VALUE_SET,
+ (unsigned char *)&args, sizeof(args), NULL);
+ if (ret)
+ return ret;
+
+ return count;
+};
+
+/**
+ * attr_current_value_show() - Get the current value of the given attribute
+ * @kobj: Pointer to the driver object.
+ * @kattr: Pointer to the attribute calling this function.
+ * @buf: The buffer to write to.
+ * @tunable_attr: The attribute to be read.
+ *
+ * Retrieves the value of the given attribute for the current smartfan profile.
+ * The current smartfan profile is retrieved from the lenovo-wmi-gamezone driver.
+ * This function is intended to be generic so it can be called from any integer
+ * attribute's "_show" function.
+ *
+ * If the WMI is success the sysfs attribute is notified.
+ *
+ * Return: Either number of characters written to buf, or an error code.
+ */
+static ssize_t attr_current_value_show(struct kobject *kobj,
+ struct kobj_attribute *kattr, char *buf,
+ struct tunable_attr_01 *tunable_attr)
+{
+ struct lwmi_om_priv *priv = dev_get_drvdata(tunable_attr->dev);
+ struct wmi_method_args_32 args;
+ enum thermal_mode mode;
+ u32 attribute_id;
+ int retval;
+ int ret;
+
+ ret = lwmi_om_notifier_call(&mode);
+ if (ret)
+ return ret;
+
+ attribute_id =
+ FIELD_PREP(LWMI_ATTR_DEV_ID_MASK, tunable_attr->device_id) |
+ FIELD_PREP(LWMI_ATTR_FEAT_ID_MASK, tunable_attr->feature_id) |
+ FIELD_PREP(LWMI_ATTR_MODE_ID_MASK, mode) |
+ FIELD_PREP(LWMI_ATTR_TYPE_ID_MASK, tunable_attr->type_id);
+
+ args.arg0 = attribute_id;
+
+ ret = lwmi_dev_evaluate_int(priv->wdev, 0x0, LWMI_FEATURE_VALUE_GET,
+ (unsigned char *)&args, sizeof(args),
+ &retval);
+ if (ret)
+ return ret;
+
+ return sysfs_emit(buf, "%d\n", retval);
+}
+
+/* Lenovo WMI Other Mode Attribute macros */
+#define __LWMI_ATTR_RO(_func, _name) \
+ { \
+ .attr = { .name = __stringify(_name), .mode = 0444 }, \
+ .show = _func##_##_name##_show, \
+ }
+
+#define __LWMI_ATTR_RO_AS(_name, _show) \
+ { \
+ .attr = { .name = __stringify(_name), .mode = 0444 }, \
+ .show = _show, \
+ }
+
+#define __LWMI_ATTR_RW(_func, _name) \
+ __ATTR(_name, 0644, _func##_##_name##_show, _func##_##_name##_store)
+
+/* Shows a formatted static variable */
+#define __LWMI_ATTR_SHOW_FMT(_prop, _attrname, _fmt, _val) \
+ static ssize_t _attrname##_##_prop##_show( \
+ struct kobject *kobj, struct kobj_attribute *kattr, char *buf) \
+ { \
+ return sysfs_emit(buf, _fmt, _val); \
+ } \
+ static struct kobj_attribute attr_##_attrname##_##_prop = \
+ __LWMI_ATTR_RO(_attrname, _prop)
+
+/* Attribute current value read/write */
+#define __LWMI_TUNABLE_CURRENT_VALUE_CAP01(_attrname) \
+ static ssize_t _attrname##_current_value_store( \
+ struct kobject *kobj, struct kobj_attribute *kattr, \
+ const char *buf, size_t count) \
+ { \
+ return attr_current_value_store(kobj, kattr, buf, count, \
+ &_attrname); \
+ } \
+ static ssize_t _attrname##_current_value_show( \
+ struct kobject *kobj, struct kobj_attribute *kattr, char *buf) \
+ { \
+ return attr_current_value_show(kobj, kattr, buf, &_attrname); \
+ } \
+ static struct kobj_attribute attr_##_attrname##_current_value = \
+ __LWMI_ATTR_RW(_attrname, current_value)
+
+/* Attribute property read only */
+#define __LWMI_TUNABLE_RO_CAP01(_prop, _attrname, _prop_type) \
+ static ssize_t _attrname##_##_prop##_show( \
+ struct kobject *kobj, struct kobj_attribute *kattr, char *buf) \
+ { \
+ return attr_capdata01_show(kobj, kattr, buf, &_attrname, \
+ _prop_type); \
+ } \
+ static struct kobj_attribute attr_##_attrname##_##_prop = \
+ __LWMI_ATTR_RO(_attrname, _prop)
+
+#define LWMI_ATTR_GROUP_TUNABLE_CAP01(_attrname, _fsname, _dispname) \
+ __LWMI_TUNABLE_CURRENT_VALUE_CAP01(_attrname); \
+ __LWMI_TUNABLE_RO_CAP01(default_value, _attrname, DEFAULT_VAL); \
+ __LWMI_ATTR_SHOW_FMT(display_name, _attrname, "%s\n", _dispname); \
+ __LWMI_TUNABLE_RO_CAP01(max_value, _attrname, MAX_VAL); \
+ __LWMI_TUNABLE_RO_CAP01(min_value, _attrname, MIN_VAL); \
+ __LWMI_TUNABLE_RO_CAP01(scalar_increment, _attrname, STEP_VAL); \
+ static struct kobj_attribute attr_##_attrname##_type = \
+ __LWMI_ATTR_RO_AS(type, int_type_show); \
+ static struct attribute *_attrname##_attrs[] = { \
+ &attr_##_attrname##_current_value.attr, \
+ &attr_##_attrname##_default_value.attr, \
+ &attr_##_attrname##_display_name.attr, \
+ &attr_##_attrname##_max_value.attr, \
+ &attr_##_attrname##_min_value.attr, \
+ &attr_##_attrname##_scalar_increment.attr, \
+ &attr_##_attrname##_type.attr, \
+ NULL, \
+ }; \
+ static const struct attribute_group _attrname##_attr_group = { \
+ .name = _fsname, .attrs = _attrname##_attrs \
+ }
+
+LWMI_ATTR_GROUP_TUNABLE_CAP01(ppt_pl1_spl, "ppt_pl1_spl",
+ "Set the CPU sustained power limit");
+LWMI_ATTR_GROUP_TUNABLE_CAP01(ppt_pl2_sppt, "ppt_pl2_sppt",
+ "Set the CPU slow package power tracking limit");
+LWMI_ATTR_GROUP_TUNABLE_CAP01(ppt_pl3_fppt, "ppt_pl3_fppt",
+ "Set the CPU fast package power tracking limit");
+
+static struct capdata01_attr_group cd01_attr_groups[] = {
+ { &ppt_pl1_spl_attr_group, &ppt_pl1_spl },
+ { &ppt_pl2_sppt_attr_group, &ppt_pl2_sppt },
+ { &ppt_pl3_fppt_attr_group, &ppt_pl3_fppt },
+ {},
+};
+
+/**
+ * lwmi_om_fw_attr_add() - Register all firmware_attributes_class members
+ * @priv: The Other Mode driver data.
+ *
+ * Return: Either 0, or an error code.
+ */
+static int lwmi_om_fw_attr_add(struct lwmi_om_priv *priv)
+{
+ unsigned int i;
+ int err;
+
+ priv->ida_id = ida_alloc(&lwmi_om_ida, GFP_KERNEL);
+ if (priv->ida_id < 0)
+ return priv->ida_id;
+
+ priv->fw_attr_dev = device_create(&firmware_attributes_class, NULL,
+ MKDEV(0, 0), NULL, "%s-%u",
+ LWMI_OM_FW_ATTR_BASE_PATH,
+ priv->ida_id);
+ if (IS_ERR(priv->fw_attr_dev)) {
+ err = PTR_ERR(priv->fw_attr_dev);
+ goto err_free_ida;
+ }
+
+ priv->fw_attr_kset = kset_create_and_add("attributes", NULL,
+ &priv->fw_attr_dev->kobj);
+ if (!priv->fw_attr_kset) {
+ err = -ENOMEM;
+ goto err_destroy_classdev;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(cd01_attr_groups) - 1; i++) {
+ err = sysfs_create_group(&priv->fw_attr_kset->kobj,
+ cd01_attr_groups[i].attr_group);
+ if (err)
+ goto err_remove_groups;
+
+ cd01_attr_groups[i].tunable_attr->dev = &priv->wdev->dev;
+ }
+ return 0;
+
+err_remove_groups:
+ while (i--)
+ sysfs_remove_group(&priv->fw_attr_kset->kobj,
+ cd01_attr_groups[i].attr_group);
+
+ kset_unregister(priv->fw_attr_kset);
+
+err_destroy_classdev:
+ device_unregister(priv->fw_attr_dev);
+
+err_free_ida:
+ ida_free(&lwmi_om_ida, priv->ida_id);
+ return err;
+}
+
+/**
+ * lwmi_om_fw_attr_remove() - Unregister all capability data attribute groups
+ * @priv: the lenovo-wmi-other driver data.
+ */
+static void lwmi_om_fw_attr_remove(struct lwmi_om_priv *priv)
+{
+ for (unsigned int i = 0; i < ARRAY_SIZE(cd01_attr_groups) - 1; i++)
+ sysfs_remove_group(&priv->fw_attr_kset->kobj,
+ cd01_attr_groups[i].attr_group);
+
+ kset_unregister(priv->fw_attr_kset);
+ device_unregister(priv->fw_attr_dev);
+}
+
+/**
+ * lwmi_om_master_bind() - Bind all components of the other mode driver
+ * @dev: The lenovo-wmi-other driver basic device.
+ *
+ * Call component_bind_all to bind the lenovo-wmi-capdata01 driver to the
+ * lenovo-wmi-other master driver. On success, assign the capability data 01
+ * list pointer to the driver data struct for later access. This pointer
+ * is only valid while the capdata01 interface exists. Finally, register all
+ * firmware attribute groups.
+ *
+ * Return: 0 on success, or an error code.
+ */
+static int lwmi_om_master_bind(struct device *dev)
+{
+ struct lwmi_om_priv *priv = dev_get_drvdata(dev);
+ struct cd01_list *tmp_list;
+ int ret;
+
+ ret = component_bind_all(dev, &tmp_list);
+ if (ret)
+ return ret;
+
+ priv->cd01_list = tmp_list;
+ if (!priv->cd01_list)
+ return -ENODEV;
+
+ return lwmi_om_fw_attr_add(priv);
+}
+
+/**
+ * lwmi_om_master_unbind() - Unbind all components of the other mode driver
+ * @dev: The lenovo-wmi-other driver basic device
+ *
+ * Unregister all capability data attribute groups. Then call
+ * component_unbind_all to unbind the lenovo-wmi-capdata01 driver from the
+ * lenovo-wmi-other master driver. Finally, free the IDA for this device.
+ */
+static void lwmi_om_master_unbind(struct device *dev)
+{
+ struct lwmi_om_priv *priv = dev_get_drvdata(dev);
+
+ lwmi_om_fw_attr_remove(priv);
+ component_unbind_all(dev, NULL);
+}
+
+static const struct component_master_ops lwmi_om_master_ops = {
+ .bind = lwmi_om_master_bind,
+ .unbind = lwmi_om_master_unbind,
+};
+
+static int lwmi_other_probe(struct wmi_device *wdev, const void *context)
+{
+ struct component_match *master_match = NULL;
+ struct lwmi_om_priv *priv;
+
+ priv = devm_kzalloc(&wdev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->wdev = wdev;
+ dev_set_drvdata(&wdev->dev, priv);
+
+ component_match_add(&wdev->dev, &master_match, lwmi_cd01_match, NULL);
+ if (IS_ERR(master_match))
+ return PTR_ERR(master_match);
+
+ return component_master_add_with_match(&wdev->dev, &lwmi_om_master_ops,
+ master_match);
+}
+
+static void lwmi_other_remove(struct wmi_device *wdev)
+{
+ struct lwmi_om_priv *priv = dev_get_drvdata(&wdev->dev);
+
+ component_master_del(&wdev->dev, &lwmi_om_master_ops);
+ ida_free(&lwmi_om_ida, priv->ida_id);
+}
+
+static const struct wmi_device_id lwmi_other_id_table[] = {
+ { LENOVO_OTHER_MODE_GUID, NULL },
+ {}
+};
+
+static struct wmi_driver lwmi_other_driver = {
+ .driver = {
+ .name = "lenovo_wmi_other",
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
+ },
+ .id_table = lwmi_other_id_table,
+ .probe = lwmi_other_probe,
+ .remove = lwmi_other_remove,
+ .no_singleton = true,
+};
+
+module_wmi_driver(lwmi_other_driver);
+
+MODULE_IMPORT_NS("LENOVO_WMI_CD01");
+MODULE_IMPORT_NS("LENOVO_WMI_HELPERS");
+MODULE_DEVICE_TABLE(wmi, lwmi_other_id_table);
+MODULE_AUTHOR("Derek J. Clark <derekjohn.clark@gmail.com>");
+MODULE_DESCRIPTION("Lenovo Other Mode WMI Driver");
+MODULE_LICENSE("GPL");
projects / thirdparty / kernel / stable.git / commitdiff
