On 2/26/2025 18:42, Derek John Clark wrote:
On Tue, Feb 25, 2025 at 10:41 PM Mario Limonciello <superm1@xxxxxxxxxx> wrote:On 2/25/2025 13:59, Derek J. Clark wrote:Adds lenovo-wmi-gamezone.c which provides a driver for the Lenovo Gamezone WMI interface that comes on Lenovo "Gaming Series" hardware. Provides ACPI platform profiles over WMI. Adds lenovo-wmi.h and lenovo-wmi.c which provide helper functions for wmidev_evaluate_method as well as prototypes for exported functions. v3: - Use notifier chain to report platform profile changes to any subscribed drivers. - Adds THERMAL_MODE_EVENT GUID and .notify function to trigger notifier chain. - Adds support for Extreme Mode profile on supported hardware, as well as a DMI quirk table for some devices that report extreme mode version support but so not have it fully implemented. - Update to include recent changes to platform-profile. v2: - Use devm_kmalloc to ensure driver can be instanced, remove global reference. - Ensure reverse Christmas tree for all variable declarations. - Remove extra whitespace. - Use guard(mutex) in all mutex instances, global mutex. - Use pr_fmt instead of adding the driver name to each pr_err. - Remove noisy pr_info usage. - Rename gamezone_wmi to lenovo_wmi_gz_priv and gz_wmi to priv. - Remove GZ_WMI symbol exporting. Signed-off-by: Derek J. Clark <derekjohn.clark@xxxxxxxxx> --- MAINTAINERS | 3 + drivers/platform/x86/Kconfig | 16 + drivers/platform/x86/Makefile | 2 + drivers/platform/x86/lenovo-wmi-gamezone.c | 374 +++++++++++++++++++++ drivers/platform/x86/lenovo-wmi.c | 77 +++++ drivers/platform/x86/lenovo-wmi.h | 62 ++++ 6 files changed, 534 insertions(+) create mode 100644 drivers/platform/x86/lenovo-wmi-gamezone.c create mode 100644 drivers/platform/x86/lenovo-wmi.c create mode 100644 drivers/platform/x86/lenovo-wmi.h diff --git a/MAINTAINERS b/MAINTAINERS index e20c32b3c480..cf7f4fce1a25 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13157,6 +13157,9 @@ L: platform-driver-x86@xxxxxxxxxxxxxxx S: Maintained F: Documentation/wmi/devices/lenovo-wmi-gamezone.rst F: Documentation/wmi/devices/lenovo-wmi-other.rst +F: drivers/platform/x86/lenovo-wmi-gamezone.c +F: drivers/platform/x86/lenovo-wmi.c +F: drivers/platform/x86/lenovo-wmi.h LETSKETCH HID TABLET DRIVER M: Hans de Goede <hdegoede@xxxxxxxxxx> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 7e20a58861eb..875822e6bd65 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -459,6 +459,22 @@ config IBM_RTL state = 0 (BIOS SMIs on) state = 1 (BIOS SMIs off) +config LENOVO_WMI + tristate + depends on ACPI_WMI + +config LENOVO_WMI_GAMEZONE + tristate "Lenovo GameZone WMI Driver" + depends on ACPI_WMI + select ACPI_PLATFORM_PROFILE + select LENOVO_WMI + help + Say Y here if you have a WMI aware Lenovo Legion device and would like to use the + platform-profile firmware interface to manage power usage.Power limits; not usage right?We could use that verbiage if desired, sure.+ + To compile this driver as a module, choose M here: the module will + be called lenovo-wmi-gamezone. + config IDEAPAD_LAPTOP tristate "Lenovo IdeaPad Laptop Extras" depends on ACPI diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile index 5f6307246e69..4a7b2d14eb82 100644 --- a/drivers/platform/x86/Makefile +++ b/drivers/platform/x86/Makefile @@ -67,7 +67,9 @@ obj-$(CONFIG_THINKPAD_ACPI) += thinkpad_acpi.o obj-$(CONFIG_THINKPAD_LMI) += think-lmi.o obj-$(CONFIG_YOGABOOK) += lenovo-yogabook.o obj-$(CONFIG_YT2_1380) += lenovo-yoga-tab2-pro-1380-fastcharger.o +obj-$(CONFIG_LENOVO_WMI) += lenovo-wmi.o obj-$(CONFIG_LENOVO_WMI_CAMERA) += lenovo-wmi-camera.o +obj-$(CONFIG_LENOVO_WMI_GAMEZONE) += lenovo-wmi-gamezone.o # Intel obj-y += intel/ diff --git a/drivers/platform/x86/lenovo-wmi-gamezone.c b/drivers/platform/x86/lenovo-wmi-gamezone.c new file mode 100644 index 000000000000..d5329fecba47 --- /dev/null +++ b/drivers/platform/x86/lenovo-wmi-gamezone.c @@ -0,0 +1,374 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Lenovo GameZone WMI interface driver. The GameZone WMI interface provides + * platform profile and fan curve settings for devices that fall under the + * "Gaming Series" of Lenovo Legion devices. + * + * Copyright(C) 2024 Derek J. Clark <derekjohn.clark@xxxxxxxxx>I know you started in 2024, but should be 2025 now right?Good point. Acked+ */ + +#include "linux/container_of.h" +#include "linux/printk.h"Do you need these two? If so, please sort them into the right place. Also shouldn't they be <linux/$foo.h>?I don't, my LSP likes to bring them in. I'll be more diligent. Thanks.+#include <linux/cleanup.h> +#include <linux/dev_printk.h> +#include <linux/dmi.h> +#include <linux/list.h> +#include <linux/notifier.h> +#include <linux/platform_profile.h> +#include <linux/types.h> +#include <linux/wmi.h> +#include "lenovo-wmi.h" + +/* Interface GUIDs */ +#define LENOVO_GAMEZONE_GUID "887B54E3-DDDC-4B2C-8B88-68A26A8835D0" +#define THERMAL_MODE_EVENT_GUID "D320289E-8FEA-41E0-86F9-911D83151B5F" + +/* Method IDs */ +#define WMI_METHOD_ID_SMARTFAN_SUPP 43 /* IsSupportSmartFan */ +#define WMI_METHOD_ID_SMARTFAN_SET 44 /* SetSmartFanMode */ +#define WMI_METHOD_ID_SMARTFAN_GET 45 /* GetSmartFanMode */ + +enum lenovo_wmi_gz_type { + GAMEZONE_FULL = 1, + THERMAL_MODE, +}; + +#define GAMEZONE_WMI_DEVICE(guid, type) \ + .guid_string = (guid), .context = &(enum lenovo_wmi_gz_type) \ + { \ + type \ + } + +static BLOCKING_NOTIFIER_HEAD(gz_chain_head); +static DEFINE_MUTEX(gz_chain_mutex); + +struct lenovo_wmi_gz_priv { + enum platform_profile_option current_profile; + struct wmi_device *wdev; + bool extreme_supported; + struct device *ppdev; /*platform profile device */ + enum lenovo_wmi_gz_type type; + struct blocking_notifier_head nhead; +}; + +struct quirk_entry { + bool extreme_supported; +}; + +static struct quirk_entry quirk_no_extreme_bug = {Is this a bug? You made it sound like in the documentation patch it's just a legacy device.Yes. I gave an overview to this in my response to your reply in 1/4, but I'll point out the relevant code below for clarity.
Thanks. This helps. I feel as long as you're clarifying the documentation in the next version I'm fine with below.
+ .extreme_supported = false, +}; + +/* Platform Profile Methods & Setup */ +static int +lenovo_wmi_gz_platform_profile_supported(struct lenovo_wmi_gz_priv *priv, + int *supported) +{ + return lenovo_wmidev_evaluate_method_1(priv->wdev, 0x0, + WMI_METHOD_ID_SMARTFAN_SUPP, 0, supported); +} + +static int lenovo_wmi_gz_profile_get(struct device *dev, + enum platform_profile_option *profile) +{ + struct lenovo_wmi_gz_priv *priv = dev_get_drvdata(dev); + int sel_prof; + int ret; + + ret = lenovo_wmidev_evaluate_method_1(priv->wdev, 0x0, + WMI_METHOD_ID_SMARTFAN_GET, 0, &sel_prof); + if (ret) + return ret; + + switch (sel_prof) { + case SMARTFAN_MODE_QUIET: + *profile = PLATFORM_PROFILE_LOW_POWER; + break; + case SMARTFAN_MODE_BALANCED: + *profile = PLATFORM_PROFILE_BALANCED; + break; + case SMARTFAN_MODE_PERFORMANCE: + if (priv->extreme_supported) { + *profile = PLATFORM_PROFILE_BALANCED_PERFORMANCE; + break; + } + *profile = PLATFORM_PROFILE_PERFORMANCE; + break; + case SMARTFAN_MODE_EXTREME: + *profile = PLATFORM_PROFILE_PERFORMANCE; + break;Here we determine what SMARTFAN_MODE_PERFORMANCE means. If extreme_supported was determined at probe we report balanced_performance, otherwise it reports performance. This will only ever return SMARTFAN_MODE_EXTREME from WMI if the hardware set it through Fn+Q cycling or if it was available in _set. As for why I am using performance in two different ways, it mostly comes down to there not being a concept for PLATFORM_PROFILE_EXTREME in the kernel. This simply ensures that the profiles scale from lowest to highest in a logical way no matter what. I think it would be very confusing to users if userspace (i.e. PPD) set balanced_performance and that went to the highest setting, followed by a lower setting when at performance. The term EXTREME is essentially marketing.+ case SMARTFAN_MODE_CUSTOM: + *profile = PLATFORM_PROFILE_CUSTOM; + break; + default: + return -EINVAL; + } + + priv->current_profile = *profile; + + ret = blocking_notifier_call_chain(&gz_chain_head, THERMAL_MODE_EVENT, + &sel_prof); + if (ret == NOTIFY_BAD) + pr_err("Failed to send notification to call chain for WMI event %u\n", + priv->type); + return 0; +} + +static int lenovo_wmi_gz_profile_set(struct device *dev, + enum platform_profile_option profile) +{ + struct lenovo_wmi_gz_priv *priv = dev_get_drvdata(dev); + int sel_prof; + int ret; + + switch (profile) { + case PLATFORM_PROFILE_LOW_POWER: + sel_prof = SMARTFAN_MODE_QUIET; + break; + case PLATFORM_PROFILE_BALANCED: + sel_prof = SMARTFAN_MODE_BALANCED; + break; + case PLATFORM_PROFILE_BALANCED_PERFORMANCE: + sel_prof = SMARTFAN_MODE_PERFORMANCE; + break; + case PLATFORM_PROFILE_PERFORMANCE: + if (priv->extreme_supported) { + sel_prof = SMARTFAN_MODE_EXTREME; + break; + } + sel_prof = SMARTFAN_MODE_PERFORMANCE; + break;Here is where we determine what performance means when setting a profile. PLATFORM_PROFILE_BALANCED_PERFORMANCE is only available if extreme is supported, so we've safely done the check for it in probe.+ case PLATFORM_PROFILE_CUSTOM: + sel_prof = SMARTFAN_MODE_CUSTOM; + break; + default: + return -EOPNOTSUPP; + } + + ret = lenovo_wmidev_evaluate_method_1(priv->wdev, 0x0, + WMI_METHOD_ID_SMARTFAN_SET, sel_prof, NULL); + if (ret) + return ret; + + return 0; +} + +static const struct dmi_system_id fwbug_list[] = { + { + .ident = "Legion Go 8APU1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "Legion Go 8APU1"), + }, + .driver_data = &quirk_no_extreme_bug, + }, + { + .ident = "Legion Go S 8ARP1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "Legion Go S 8ARP1"), + }, + .driver_data = &quirk_no_extreme_bug, + }, + { + .ident = "Legion Go S 8APU1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "Legion Go S 8APU1"), + }, + .driver_data = &quirk_no_extreme_bug, + }, + {}, + +}; + +static bool extreme_supported(int profile_support_ver) +{ + const struct dmi_system_id *dmi_id; + struct quirk_entry *quirks; + + if (profile_support_ver < 6) + return false; + + dmi_id = dmi_first_match(fwbug_list); + if (!dmi_id) + return true; + + quirks = dmi_id->driver_data; + return quirks->extreme_supported; +}This is where we determine if extreme is supported. Legacy devices will be version 5 or less. The quirk table is for ver 6+ with a bugged BIOS.+static int lenovo_wmi_platform_profile_probe(void *drvdata, + unsigned long *choices) +{ + struct lenovo_wmi_gz_priv *priv = drvdata; + enum platform_profile_option profile; + int profile_support_ver; + int ret; + + ret = lenovo_wmi_gz_platform_profile_supported(priv, + &profile_support_ver); + if (ret) + return ret; + + if (profile_support_ver < 1) + return -ENODEV; + + priv->extreme_supported = extreme_supported(profile_support_ver); + + set_bit(PLATFORM_PROFILE_LOW_POWER, choices); + set_bit(PLATFORM_PROFILE_BALANCED, choices); + set_bit(PLATFORM_PROFILE_PERFORMANCE, choices); + set_bit(PLATFORM_PROFILE_CUSTOM, choices); + + if (priv->extreme_supported) + set_bit(PLATFORM_PROFILE_BALANCED_PERFORMANCE, choices); + + return 0; +}This is where we enable balanced_perfomance if extreme is supported. - Derek+ +static const struct platform_profile_ops lenovo_wmi_gz_platform_profile_ops = { + .probe = lenovo_wmi_platform_profile_probe, + .profile_get = lenovo_wmi_gz_profile_get, + .profile_set = lenovo_wmi_gz_profile_set, +}; + +/* Notifier Methods */ +int lenovo_wmi_gz_register_notifier(struct notifier_block *nb) +{ + guard(mutex)(&gz_chain_mutex); + return blocking_notifier_chain_register(&gz_chain_head, nb); +} +EXPORT_SYMBOL_NS_GPL(lenovo_wmi_gz_register_notifier, "GZ_WMI"); + +int lenovo_wmi_gz_unregister_notifier(struct notifier_block *nb) +{ + guard(mutex)(&gz_chain_mutex); + return blocking_notifier_chain_unregister(&gz_chain_head, nb); +} +EXPORT_SYMBOL_NS_GPL(lenovo_wmi_gz_unregister_notifier, "GZ_WMI"); + +static void devm_lenovo_wmi_gz_unregister_notifier(void *data) +{ + struct notifier_block *nb = data; + + lenovo_wmi_gz_unregister_notifier(nb); +} + +int devm_lenovo_wmi_gz_register_notifier(struct device *dev, + struct notifier_block *nb) +{ + int ret; + + ret = lenovo_wmi_gz_register_notifier(nb); + if (ret < 0) + return ret; + + return devm_add_action_or_reset(dev, devm_lenovo_wmi_gz_unregister_notifier, nb); +} +EXPORT_SYMBOL_NS_GPL(devm_lenovo_wmi_gz_register_notifier, "GZ_WMI"); + +/* Driver Methods */ +static void lenovo_wmi_gz_notify(struct wmi_device *wdev, + union acpi_object *obj) +{ + struct lenovo_wmi_gz_priv *tm_priv = dev_get_drvdata(&wdev->dev); + struct lenovo_wmi_gz_priv *gz_priv = + container_of(&gz_chain_head, struct lenovo_wmi_gz_priv, nhead); + int sel_prof; + int ret; + + if (obj->type != ACPI_TYPE_INTEGER) + return; + + switch (tm_priv->type) { + case THERMAL_MODE: + sel_prof = obj->integer.value; + break; + default: + return; + } + + /* Update primary Gamezone instance */ + switch (sel_prof) { + case SMARTFAN_MODE_QUIET: + gz_priv->current_profile = PLATFORM_PROFILE_LOW_POWER; + break; + case SMARTFAN_MODE_BALANCED: + gz_priv->current_profile = PLATFORM_PROFILE_BALANCED; + break; + case SMARTFAN_MODE_PERFORMANCE: + if (gz_priv->extreme_supported) { + gz_priv->current_profile = + PLATFORM_PROFILE_BALANCED_PERFORMANCE; + break; + } + gz_priv->current_profile = PLATFORM_PROFILE_PERFORMANCE; + break; + case SMARTFAN_MODE_EXTREME: + gz_priv->current_profile = PLATFORM_PROFILE_PERFORMANCE; + break; + case SMARTFAN_MODE_CUSTOM: + gz_priv->current_profile = PLATFORM_PROFILE_CUSTOM; + break; + default: + break; + } + + ret = blocking_notifier_call_chain(&gz_chain_head, THERMAL_MODE_EVENT, + &sel_prof); + if (ret == NOTIFY_BAD) + pr_err("Failed to send notification to call chain for WMI event %u\n", + tm_priv->type); +} + +static int lenovo_wmi_gz_probe(struct wmi_device *wdev, const void *context) +{ + struct lenovo_wmi_gz_priv *priv = + devm_kzalloc(&wdev->dev, sizeof(*priv), GFP_KERNEL); + + if (!priv) + return -ENOMEM; + + if (!context) + return -EINVAL; + + priv->wdev = wdev; + priv->type = *((enum lenovo_wmi_gz_type *)context); + + dev_set_drvdata(&wdev->dev, priv); + + if (priv->type != GAMEZONE_FULL) + return 0; + + priv->nhead = gz_chain_head; + priv->ppdev = platform_profile_register(&wdev->dev, "lenovo-wmi-gamezone", + priv, &lenovo_wmi_gz_platform_profile_ops); + + return 0; +} + +static const struct wmi_device_id lenovo_wmi_gz_id_table[] = { + { GAMEZONE_WMI_DEVICE(LENOVO_GAMEZONE_GUID, GAMEZONE_FULL) }, + { GAMEZONE_WMI_DEVICE(THERMAL_MODE_EVENT_GUID, THERMAL_MODE) }, + {} +}; + +static struct wmi_driver lenovo_wmi_gz_driver = { + .driver = { + .name = "lenovo_wmi_gamezone", + .probe_type = PROBE_PREFER_ASYNCHRONOUS, + }, + .id_table = lenovo_wmi_gz_id_table, + .probe = lenovo_wmi_gz_probe, + .notify = lenovo_wmi_gz_notify, + .no_singleton = true, +}; + +module_wmi_driver(lenovo_wmi_gz_driver); + +MODULE_IMPORT_NS("LENOVO_WMI"); +MODULE_DEVICE_TABLE(wmi, lenovo_wmi_gz_id_table); +MODULE_AUTHOR("Derek J. Clark <derekjohn.clark@xxxxxxxxx>"); +MODULE_DESCRIPTION("Lenovo GameZone WMI Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/platform/x86/lenovo-wmi.c b/drivers/platform/x86/lenovo-wmi.c new file mode 100644 index 000000000000..0de2c37e69bd --- /dev/null +++ b/drivers/platform/x86/lenovo-wmi.c @@ -0,0 +1,77 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Lenovo Legion WMI interface driver. The Lenovo Legion WMI interface is + * broken up into multiple GUID interfaces that require cross-references + * between GUID's for some functionality. The "Custom Method" interface is a + * legacy interface for managing and displaying CPU & GPU power and hwmon + * settings and readings. The "Other Mode" interface is a modern interface + * that replaces or extends the "Custom Method" interface methods. The + * "Gamezone" interface adds advanced features such as fan profiles and + * overclocking. The "Lighting" interface adds control of various status + * lights related to different hardware components. "Other Mode" uses + * the data structs LENOVO_CAPABILITY_DATA_00, LENOVO_CAPABILITY_DATA_01 + * and LENOVO_CAPABILITY_DATA_02 structs for capability information. + * + * Copyright(C) 2024 Derek J. Clark <derekjohn.clark@xxxxxxxxx> + * + */ + +#include <linux/wmi.h> +#include "lenovo-wmi.h" + +/* wmidev_evaluate_method helper functions */ +static int lenovo_wmidev_evaluate_method(struct wmi_device *wdev, u8 instance, + u32 method_id, struct acpi_buffer *in, + struct acpi_buffer *out) +{ + acpi_status status; + + status = wmidev_evaluate_method(wdev, instance, method_id, in, out); + + if (ACPI_FAILURE(status)) + return -EIO; + + return 0; +}; + +int lenovo_wmidev_evaluate_method_2(struct wmi_device *wdev, u8 instance, + u32 method_id, u32 arg0, u32 arg1, + u32 *retval) +{ + struct wmi_method_args args = { arg0, arg1 }; + struct acpi_buffer input = { (acpi_size)sizeof(args), &args }; + struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; + union acpi_object *ret_obj __free(kfree) = NULL; + int err; + + err = lenovo_wmidev_evaluate_method(wdev, instance, method_id, &input, + &output); + + if (err) + return err; + + if (retval) { + ret_obj = (union acpi_object *)output.pointer; + if (!ret_obj) + return -ENODATA; + + if (ret_obj->type != ACPI_TYPE_INTEGER) + return -ENXIO; + + *retval = (u32)ret_obj->integer.value; + } + + return 0; +} +EXPORT_SYMBOL_NS_GPL(lenovo_wmidev_evaluate_method_2, "LENOVO_WMI"); + +int lenovo_wmidev_evaluate_method_1(struct wmi_device *wdev, u8 instance, + u32 method_id, u32 arg0, u32 *retval) +{ + return lenovo_wmidev_evaluate_method_2(wdev, instance, method_id, arg0, + 0, retval); +} +EXPORT_SYMBOL_NS_GPL(lenovo_wmidev_evaluate_method_1, "LENOVO_WMI"); +MODULE_AUTHOR("Derek J. Clark <derekjohn.clark@xxxxxxxxx>"); +MODULE_DESCRIPTION("Lenovo WMI Common Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/platform/x86/lenovo-wmi.h b/drivers/platform/x86/lenovo-wmi.h new file mode 100644 index 000000000000..113928b4fc0f --- /dev/null +++ b/drivers/platform/x86/lenovo-wmi.h @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later + * + * Lenovo Legion WMI interface driver. The Lenovo Legion WMI interface is + * broken up into multiple GUID interfaces that require cross-references + * between GUID's for some functionality. The "Custom Method" interface is a + * legacy interface for managing and displaying CPU & GPU power and hwmon + * settings and readings. The "Other Mode" interface is a modern interface + * that replaces or extends the "Custom Method" interface methods. The + * "Gamezone" interface adds advanced features such as fan profiles and + * overclocking. The "Lighting" interface adds control of various status + * lights related to different hardware components. "Other Mode" uses + * the data structs LENOVO_CAPABILITY_DATA_00, LENOVO_CAPABILITY_DATA_01 + * and LENOVO_CAPABILITY_DATA_02 structs for capability information. + * + * Copyright(C) 2024 Derek J. Clark <derekjohn.clark@xxxxxxxxx> + * + */ +#include <linux/notifier.h> +#include <linux/platform_profile.h> + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#ifndef _LENOVO_WMI_H_ +#define _LENOVO_WMI_H_ + +#include <linux/bits.h> +#include <linux/types.h> +#include <linux/wmi.h> + +struct wmi_method_args { + u32 arg0; + u32 arg1; +}; + +/* gamezone structs */ +enum thermal_mode { + SMARTFAN_MODE_QUIET = 0x01, + SMARTFAN_MODE_BALANCED = 0x02, + SMARTFAN_MODE_PERFORMANCE = 0x03, + SMARTFAN_MODE_EXTREME = 0xE0, /* Ver 6+ */ + SMARTFAN_MODE_CUSTOM = 0xFF, +}; + +enum lenovo_wmi_action { + THERMAL_MODE_EVENT = 1, +}; + +/* wmidev_evaluate_method helper functions */ +int lenovo_wmidev_evaluate_method_2(struct wmi_device *wdev, u8 instance, + u32 method_id, u32 arg0, u32 arg1, + u32 *retval); +int lenovo_wmidev_evaluate_method_1(struct wmi_device *wdev, u8 instance, + u32 method_id, u32 arg0, u32 *retval); + +/* lenovo_wmi_gz_driver notifier functions */ +int lenovo_wmi_gz_notifier_call(struct notifier_block *nb, unsigned long action, + enum platform_profile_option *profile); +int lenovo_wmi_gz_register_notifier(struct notifier_block *nb); +int lenovo_wmi_gz_unregister_notifier(struct notifier_block *nb); +int devm_lenovo_wmi_gz_register_notifier(struct device *dev, + struct notifier_block *nb); +#endif /* !_LENOVO_WMI_H_ */
