70 lines · c
1/* SPDX-License-Identifier: GPL-2.0-only */2 3/*4 * ACPI fan device IDs are shared between the fan driver and the device power5 * management code.6 *7 * Add new device IDs before the generic ACPI fan one.8 */9 10#ifndef _ACPI_FAN_H_11#define _ACPI_FAN_H_12 13#include <linux/kconfig.h>14 15#define ACPI_FAN_DEVICE_IDS \16 {"INT3404", }, /* Fan */ \17 {"INTC1044", }, /* Fan for Tiger Lake generation */ \18 {"INTC1048", }, /* Fan for Alder Lake generation */ \19 {"INTC1063", }, /* Fan for Meteor Lake generation */ \20 {"INTC106A", }, /* Fan for Lunar Lake generation */ \21 {"INTC10A2", }, /* Fan for Raptor Lake generation */ \22 {"PNP0C0B", } /* Generic ACPI fan */23 24#define ACPI_FPS_NAME_LEN 2025 26struct acpi_fan_fps {27 u64 control;28 u64 trip_point;29 u64 speed;30 u64 noise_level;31 u64 power;32 char name[ACPI_FPS_NAME_LEN];33 struct device_attribute dev_attr;34};35 36struct acpi_fan_fif {37 u8 revision;38 u8 fine_grain_ctrl;39 u8 step_size;40 u8 low_speed_notification;41};42 43struct acpi_fan_fst {44 u64 revision;45 u64 control;46 u64 speed;47};48 49struct acpi_fan {50 bool acpi4;51 struct acpi_fan_fif fif;52 struct acpi_fan_fps *fps;53 int fps_count;54 struct thermal_cooling_device *cdev;55 struct device_attribute fst_speed;56 struct device_attribute fine_grain_control;57};58 59int acpi_fan_get_fst(struct acpi_device *device, struct acpi_fan_fst *fst);60int acpi_fan_create_attributes(struct acpi_device *device);61void acpi_fan_delete_attributes(struct acpi_device *device);62 63#if IS_REACHABLE(CONFIG_HWMON)64int devm_acpi_fan_create_hwmon(struct acpi_device *device);65#else66static inline int devm_acpi_fan_create_hwmon(struct acpi_device *device) { return 0; };67#endif68 69#endif70